Unit4 topic1 What's the strongest animal on the farm? 单元知识梳理+话题过关检测（带答案详解）
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中小学教育资源及组卷应用平台
Unit4 topic1 单元知识梳理+话题过关检测（带答案详解）
Unit4 topic1 单元知识梳理
一、重点短语。
think about 思考，考虑
in the countryside 在乡下
enjoy the beauty of nature 享受大自然的美
on the farm 在农场
the nicest of all 所有中最好的
play with sb 和某人玩
talk about sth with sb 和某人谈论某事
like sth better 更喜欢某物
make sb happy 使某人开心
sing to sb 给某人唱歌
like sth best 最喜欢某物
both ...and 两者都
chat with sb. 和某人聊天
run after 追赶
live a happy life 过着幸福的生活
as we know 众所周知
be important to sb 对某人来说是重要的
share ... with 与……分享
provide sth for sb 为某人提供某物
thousands of 成千上万的
nowhere else 没有别的地方
feed on 以……为食
be in danger 在危险中
in number 在数量上
control the climate 调 节 气 候
die out 灭 绝
less and less 越 来 越 少
play an important part ( in sth.) 在某事中起重要作用； 参与（某事）
smaller and smaller越来越小
Southwest China=the southwest of China 中国西南部
二、重点知识
beauty ['bju:t ] n.美丽，美人 nature ['ne t (r)] n.自然；性质；种类
the beauty of nature 自然的美
【技巧总结】
beauty (n.) (adj.) beautiful (adv.) beautifully
nature (n.) (adj.) natural (adv.) naturally
sheep [ i:p] n.(.sheep)(绵)羊;羊皮;驯服者
sheep 单复数同形
【技巧总结】
deer n. 鹿； Chinese n.中国人； Japanese n.日本人
thin [θ n]adj.瘦的；薄的；稀的
比较级 thinner 更瘦； 最高级thinnest 最瘦
【典例分析】
rose [r z] n.玫瑰花； 复数roses
frog [fr ɡ] n.青蛙; 复数 frogs
thick [θ k] adj.茂密的，厚的
thick forests 茂密的森林
ground [graund] n.地，地面；wet [wet] adj.湿的，潮湿的
e.g. The ground is always wet. 地总是湿的.
cover [k v ] v./n. 覆盖，掩盖，盖子
cover…with… 用…覆盖…
e.g. He covers his face with his hands. 他用手捂住脸.
nowhere ['n uwe ] adv.无处，哪里都不
somewhere 某些地方 everywhere 每一个地方 anywhere 任何地方
【技巧总结】
somewhere 意为“一些地方”，常用于肯定句中。
anywhere 意为“任何地方”，可用于肯定句、否定句或一般疑问句中。
nowhere 意为“没有地方”，本身具有否定含义。
e.g. I want to go somewhere warm.我想去一个温暖的地方。
Did you find anywhere relaxing 你找到令人放松的地方了吗？
During the winter holiday I went nowhere, just stayed at home. 整个寒假，我哪儿都没有去，就待在家里。
control [k n'tr l] v.&n.控制; climate [ kla m t] n.气候
control the climate 控制气候
die [da ] v. 死
die out 灭绝；消失
protect [pr 'tekt] v.保护
【技巧总结】
protect sth. / sb. from doing sth. 保护某物/某人免于……
e.g.The hat can protect his face from the sun. 这顶帽子能保护他的脸免受于太阳光照射。
feed [fi:d] v.喂(养)；饲养
feed on 以......为食
e.g. Pandas feed on bamboo. 熊猫以竹子为食.
less [les] 较少的；少于，小于
less and less 越来越少
e.g. less and less land 越来越少的土地
whale [we l] n.鲸
blue whales 蓝鲸
sea [si:]n.海，海洋
sea animals 海洋动物
bone [b n] n.骨头,骨质
kill tigers for fur and bones 杀死老虎以得到皮毛和骨头
17.think about 意 为 “ 思 考 ， 考 虑 ……" ， 后 接 名 词 、 代 词 或 动 名 词 。
e.g. I'm thinking about going there some day. 我 在 考 虑 有 一 天 去 那 儿 。
【技巧总结】
think over 仔 细 考 虑 。
e.g. Think it over, then you will have a good idea．好好想想，你就会有一个好主意。
think of … 认 为……， 想 起 ……。 有 时 可 以 与 think about 互 换 。
e.g. I tried not to think of/about Richard. 我 尽 量 不 去 想 理 查 德 。
18.run after 追赶，追逐
e.g. The cat is running after a mouse. 猫在追赶一只老鼠.
19.like... better更喜欢...
e.g. I like apples better.我更喜欢苹果。
【技巧总结】
like...best最喜欢...
e.g. I like bananas best.我最喜欢香蕉。
20.both ... and... 表示“不仅…而且…; …和…(两者)都”。其谓语动词用复数。
e.g. Both Jane and Tom love this movie. 简和汤姆都喜欢这部电影.
21.be important to sb.对某人来讲很重要
e.g. The money is important to everyone,but it’s not the most important.
钱对每个人来讲都很重要，但是它却不是最重要的。
22.thousands and thousands of成千上万的
hundreds of 数百的; thousands of 数千的
【技巧总结】
当hundred,thousand,million,billion等表示不确定的数目时,常用复数形式，后面跟介词of; 当这些词与具体数词连用时,则不用复数形式。
thousands of 数千的; five hundred 5百
23.play an important part ( in sth.) 在某事中起重要作用
play a part ( in sth.)（在某事中）起作用;参与（某事）
e.g. He plays an active part in class activities. 他积极参加班级活动。
24.smaller and smaller越来越小。形容词比较级+ and +形容词比较级：越来越...
e.g. The weather gets warmer and warmer.天气变得越来越暖和了。
【技巧总结】
the+形容词比较级，the+形容词比较级，越...，就越...
e.g. The more you eat,the fatter you will be.你吃得越多，就会越胖。
25.in danger处在危险中；out of danger脱离危险
e.g. We are in danger now. 我们现在处于危险中.
【技巧总结】
in+表示情绪或者处境的名词：处于某种心态或境地。
in fear处于恐惧中; in anger生着气; in need在患难中
三．重难点详解
1. I think the countryside is much quieter than the city, too.我认为乡下也比城市更加安静。
quieter than..比...更安静。
比较级+than......比...更...，用于两个人或事物之间进行比较。than后边的比较对象可以是一个词，一个短语或一个句子。
e.g. The pig is stronger than the hen. 猪比鸡强壮得多.
【典例分析】
2. As we know, plants and animals are important to us.We share the same world with them.
我们和他们（动植物）共享这个世界。
be important to sb 对某人来说，很重要
share sth. with sb. 与某人分享某物，
e.g. I want to share my happiness with you. 我想和你分享我的快乐.
【典例分析】
3. Rainforests cover 6% of the earth’s surface.
1) cover v.覆盖；cover… with… 用…覆盖…
e.g. He covered his face with a newspaper. 他用报纸盖住了他的脸.
2) be covered with… 被…覆盖
e.g. The land is covered with snow. 土地被雪覆盖了.
3) 6% 读作：six percent
【技巧总结】
数词 % + of +可数名词复数作主语，谓语动词用复数。
数词 % + of +不可数名词/可数名词单数作主语，谓语动词用单数。
e.g. 50% of the students in our class are boys.
70% of the earth is water.\
【典例分析】
Thousands and thousands of animals live in rainforests.
thousands and thousands of 成 百 万 上 千 万 的
【技巧总结】
类 似 的 表 达 方 式 有 ：
hundreds of 成 百 上 千 的 ； thousands of 成 千 上 万 的 ； millions of 数 百 万 的
注 意 ：
1） 与 具 体 数 字 相 连 不 加 s. e.g. two thousand books 两 千 本 书
2) 用 复 数 形 式 时 后 常 跟of. e.g. hundreds of teachers 数 百 名 教 师
3） a few, several等词修饰时也不加s. e.g. several thousand people 几千人
【典例分析】
5. The plants in the forests help to make the air fresher and cleaner.
1) help (sb. ) (to)do sth. 帮 助 （ 某 人 ） 做 …… " ， 在 动 词 help 后 的 不 定 式 ， 带 to 或 不 带 to 均 可 。
e.g. I'm going to help my mother (to) clean the house. 我 准 备 帮 助 妈 妈 打 扫 房 间 。
2）make the air fresher 使空气更清新，make + sb. /sth. + adj.“使 …… 怎么样"。
e.g. The bad news make me sad. 这 条 坏 消 息 使 我 很 难 过。
His mother made him stand behind the door. 他 妈 妈 让 他 站 在 门 后 。
重点语法.
形容词的比较级和最高级
形容词比较级在句子中的运用：两个事物或人的比较用比较级，比较级由“形容词比较级＋than＋…，”构成表示在两者中间一方比另一方“更加…”。
形容词最高级用于三者以上事物或人的比较，形容词的结构形式是“定冠词the＋形容词最高级＋名词＋表示范围的短语或从句”(如all, of all, of the tree, in，among等)。
形容词比较级和最高级的构成：
（一）规则变化：
一般在词尾加-er（比较级），-est（最高级）：tall—taller—tallest,fresh—fresher —freshest
以字母e结尾的形容词只加-r（比较级），-st（最高级）：nice—nicer—nicest ,able—abler—ablest
以重读闭音节结尾的词，词尾只有一个辅音字母时，应双写这个辅音字母，再加-er（比较级），-est （最高级）：“又大又胖又热又湿又瘦 ”
big—bigger—biggest,fat-fatter-fattest,hot-hotter-hottest,wet-wetter-wettest,thin-thinner-thinnest
以辅音字母+y结尾的双音节词，先改y为i，再加-er（比较级），-est（最高级）：
easy—easier—easiest, dry-drier-driest, heavy-heavier-heaviest
部分双音节词和多音节词，在前面加more（比较级），most（最高级）来构成比较级和最高级： easily—more easily—most easily,active— more active—most active
（二）不规则变化
good / well—better—best ; bad / ill—worse—worst ; old—older/elder—oldest/eldest
many / much—more—most ; little/few—less—least ; far—farther/further—farthest/furthest
形容词比较等级的用法
级别 比较程度 表达方式和意义 例 句 备 注
原 级 同等程度 肯定形式 A+be+as+adj.原级+as+B（表示A和B一样） Art is as interesting as music.Lucy is as old as Lily.
否定形式 A+be+not+so/as+adj.原级+as+B(表示A不如/没有B...) English is not so difficult as science.Mary is not so/as careful as I.
比较级 不同程度（用于两者比较） A+be+adj.比较级+than+B(表示A比B更……) Jim is older than Lucy.This apple is bigger than that one. 表示一方超过另一方的程度或数量时，可在比较级前加表示程度的状语，如even、a lot、a bit、a little、still、much、far、no、not、by far、three years,five times,20%等修饰。I am two years older than Lily.我比莉莉大两岁。Our school is twice larger than theirs.
程度加深 比较级+and+比较级（越来越……）The + 比较级，the + 比较级（越……, 就越……） He is growing taller and taller.The more , the better .（越多越好） more and more beautiful
其他用法 ①比较级+than+any other +可数名词单数（适用于范围一致时） ②比较级+ than+ the other +可数名词复数 He is taller than any other student / the other students in his class. 比较时，不能与自身比较。 王磊比他班的任何和一个学生都高。错误：Wang Lei is taller than any student in his class.正确：Wang Lei is taller than any other student in his class. 比较级+ than+any +可数名词单数（适用于范围不一致时）He is taller than any student in my class.
表示“比较A和B，那一个较......”。如：Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？ 表示“比较A和B，那一个较......”。如：Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？ 表示“比较A和B，那一个较......” Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？
“the+比较级+of the two”意为“两个中比较的......”.如： Mary is the cleverer of the two.玛丽是这两个人中比较聪明的。He is the taller of the two brothers.
最高级 最高程度（用于三者或三者以上） the +最高级+of /in(在...中最…) Spring is the best season of all the years.China is the largest country in Asia. 在同类事物范围内进行比较用of，在一定的地域空间内用in.Tom is the tallest of these children.汤姆在这些孩子中是最高的。Tom is the tallest in our class.汤姆在我们班是最高的。
其他用法 表示第几高/长/远：序数词后面接最高级。 The Yangtze River is the first longest river in China.长江是中国第一长河。I think computer is the second most useful invention.我认为电脑是第二有用的发明。
在比较结构中需注意的问题：
1.原级：形容词原级常用so,very,too,enough,quite等词修饰
e.g. He often feels very lonely.他常常觉得很寂寞。
Those flowers are so beautiful.这些花如此美丽。
原级、比较级与最高级之间有时可以转换，意思不变。
e.g. Tom is not as tall as Jim.=Tom is shorter than Jim.
The song is more popular than the other songs.=The song is the most popular one of all the songs.
3.在表示比较的句子中，如果比较对象相同，为避免重复，在从句中常用one、ones、the one、that、those等词代替前面提到的名词。that指物,one既可指人又可指物。that可代替可数名词单数和不可数名词，而one只能代替可数名词单数。
e.g. There are not so/as many apples in this basket as those in that basket.
这个篮子里的苹果没有那个篮子里的(苹果）多。
4. one of +形容词最高级+名词复数”意为“最......的.....之一”。
e.g. Beijing is one of the largest cities in China.北京是中国最大的城市之一。
话题过关检测
一、用所给单词适当形式填空
1．Simon is ill. He feels even today than yesterday. (bad)
2．Yuan Jiang is (serious) than me.
3．My father is much (funny) than my mother.
4．Last year my father (feed) more than 100 pigs.
5．Travelling by air is （comfort）than by train.
6．We must pay attention to (protect) the earth.
7．I think you have no feeling for the (beautiful) of my paintings.
8．On Friday afternoon, our school finishes (early) than usual.
9．Shopping online makes our lives more (convenience) than before.
10．Jack is (tall) than any other student in his class.
11．In my opinion, Anna is (clever) than his brother.
12． (thousand) of people became homeless because of the earthquake.
13．Sometimes we put ourselves in . So try to be careful enough. (dangerous)
14．I think there will be (little) pollution in the future because of the new law.
15．The cold weather caused the plants (die).
二、完形填空
16．Laura sang ________ than the other singers in the singing competition yesterday.
A．clear B．clearly C．more clearly D．much clearly
17．I think there ________ fewer people and ________ pollution in 100 years.
A．will have; less B．are; fewer C．will be; less D．have; little
18．Jack is ________ in our group. No one studies ________ than him.
A．the most careful; more carefully B．the most carefully; more careful
C．more careful; the most carefully D．careful; more carefully
19．—How do you come to school every day, by bike or on foot
—By bike. It’s much ________ than on foot.
A．fast B．faster C．fastest D．the fastest
20．Lily is ________ than her sister.
A．friendly B．very friendly C．more friendly D．the most friendly
21．Jenny will get up ________ than usual to catch the first bus.
A．later B．latest C．earlier D．earliest
22．The population of Shenzhen is _______ than that of many other cities in China.
A．large B．larger C．largest D．the largest
23．Tom is as ________ as Sam. But he is ________ than Sam.
A．more outgoing, smarter B．more outgoing, smart C．outgoing, smarter
24．I think there will be ________ people but ________ pollution in the future. And the air will be clean.
A．less; fewer B．fewer; more C．more; less D．less; more
25．Jack says there will be ________ trees and ________ pollution in 20 years.
A．more, fewer B．fewer, less C．more, less D．less, less
三、完形填空
通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出最佳答案，并将答题卡上对应题目所选的选项涂黑。
When I was about six years old, my brother David and I visited our aunt, Mary. We stayed in her house for a night. David was only 4 years old, and was still 26 of the dark, so Mary left the hall light on when we slept.
But David 27 the grey moths（蛾）flying around the hall light. He asked Mary to make the moths go away. When she asked 28 , he simply said, “Because they are ugly and scary, I don’t like them.” Mary laughed and said, “Being ugly outside doesn’t 29 not being beautiful inside. In fact, moths are the most beautiful animals in the animals world.”
Once, the angels（天使）were 30 . They were sad because it was raining heavily. The 31 little moths hated to see others so sad. They decided to make a rainbow（彩虹）to cheer up the angels. They thought if the butterflies 32 , they could make a beautiful rainbow together.
Then one of the moths went to ask the butterflies for help. But the butterflies didn’t want to 33 any of their colors, so the moths decided to make a rainbow themselves. They beat their wings very hard and the colors on them made a rainbow. They kept giving a little more and a little more 34 the window went across the sky. They had given away all their colors except grey, which didn’t match the beautiful rainbow.
“Then the once-colorful moths became 35 . The angels saw the rainbow and smiled...” My brother went to sleep with that story and hasn’t been afraid of moths since then.
26．A．afraid B．sure C．proud D．happy
27．A．liked B．hated C．let D．killed
28．A．how B．what C．when D．why
29．A．mean B．make C．know D．hope
30．A．laughing B．playing C．crying D．talking
31．A．kind B．angry C．ugly D．sad
32．A．refused B．advised C．helped D．left
33．A．give up B．pick up C．grow up D．look up
34．A．before B．till C．after D．when
35．A．red B．yellow C．green D．grey
四、阅读理解
A
Having a dog as part of the family can be really great. There are so many good things about having a dog. For example, dogs can be wonderful friends and companions. They get you out of the house because they need exercise and you are never lonely if you have a dog. Getting the right dog for you.
Having a dog means that you are completely responsible for another being. So before you start asking your parents or caregivers（看护人）for a dog, you need to do some thinking and some research.
Research the type of dog who would fit in well with your family lifestyle（生活方式）. Look at this site: www..au to find out about different breeds（种类）and sizes of dogs, how much food, exercise, training, etc they will need.
Who is going to take care of the dog, not just for the first week
How much time will the dog have to be by itself
What are the costs of having a dog This includes（包括）buying the dog, food, registration（登记） with the local council, visits to the vet（兽医）for injections（注射）and so on.
What about training the dog Is there somewhere nearby where you can join a dog training class
Is there a dog park or beach nearby where the dog can run free, after he has learned to come back when you call
36．Which of the following is NOT mentioned（提及）if you have a dog
A．You can have a wonderful friend
B．You can go out to exercise.
C．You won’t be lonely
D．You can get on well with your partners
37．The underlined word “responsible” means ________ in Chinese.
A．有责任的 B．兴奋的 C．细心的 D．有学识的
38．From the site www..au, you can ________.
A．find some information about dogs. B．find something about your friends.
C．know the price of different dog breeds D．find who can have a pet dog
39．Which is NOT true according to the passage
A．Having a dog as a pet must be very great.
B．You must do some thinking before having a pet dog.
C．You must think the cost of having a pet dog.
D．Dogs are the best pet for everyone.
40．The passage is probably from ________.
A．a health magazine. B．a pet magazine.
C．a paper of daily news D．a novel
B
Mobile phones are one of the most useful inventions of the last 50 years, but not everything that is said about them is good. Mobiles are often believed to be the cause of a number of things from poor eyesight and headaches to house fires. There’s even one theory that mobile phones should be responsible for the disappearance of bees!
The theory is that the radiation (辐射) given off by mobile phones does great harm to bees’ navigation systems (导航系统). Bees have built-in system a bit like GPS and this helps them find their way back to their hives (蜂巢). But recently, thousands of bees have failed to find their way home. It is believed they are dying far from their hives.
The problem was first noticed by beekeepers in America and is a lot more serious than it at first seems. The important thing about bees is that most of the crops in many countries of the world are pollinated by them. Without bees, the crops can’t continue to grow. Many beekeepers in Europe have reported losing between 50 and 70 percent of their bees. Jim Piper, London beekeeper, said to the reporter, “My business is becoming wore. Twenty-nine of my forty hives are now empty.”
Nobody knows for sure whether the theory is true or not, but it’s a fact that bees are disappearing in very large numbers. And we can’t manage without them. Einstein said that if all our bees disappeared, man would only live for four more years! If the mobile phone theory is correct, we need to do something about it right now—before it’s too late.
41．What might be caused by mobiles according to Paragraph 1
A．Poor listening. B．The forest fires.
C．The disappearance of bees. D．Terrible toothache.
42．What does the theory in the passage say
A．Bees have GPS inside their bodies.
B．Mobiles have an influence on bees’ hives.
C．The radiation makes bees unable to fly.
D．The radiation makes bees lose their way home.
43．What does Paragraph-3 mainly tell us
A．Crops will stop growing.
B．Beekeepers’ business is getting worse.
C．Bees’ disappearing is a serious problem.
D．Beekeepers in Europe found the problem first.
44．The author wrote this passage to ________.
A．cull on people to help beekeepers.
B．show how a bee’s built-in system works.
C．ask people to stop using mobiles right away.
D．warn people of the possible harm mobiles do to bees.
45．In which section of the newspaper can we probably read his article
A．Education. B．Fashion. C．Science. D．Sport.
五、补全对话
请通读下面对话，根据对话内容，从选项中选出能填入空白处的最佳选项，选项中有一项为多余选项。
A: How interesting these pictures are!
B: Yes. Look at this one. 46
A: Oh, but so much ice cream is on his face.
B: Yes, so funny. Look at another one. 47
A: She is running after a dog. But her dress is too long. She can’t run fast.
B: Look at this cute monkey! 48
A: Ha ha, I want to play with it. I like monkeys.
B: I like them too. 49
A: Here is a photo of pandas.
B: Oh, yes. 50 They’re very cute.
A．The boy is eating ice cream.
B．But my favourite animals are pandas!
C．It’s playing computer games.
D．They’re eating bamboo.
E．What’s the girl doing
F．Where are they
六、短文填空
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整，请将答案写在题号后的横线上，每空限填一词，每词限用一次。
protect, color, feed, the, because, quickly, from, same, appear, face
Do you know why different animals or insects have their own colors Because they can use different 51 to keep themselves safe.
Some birds 52 on insects, but it’s not easy for them to catch locusts (蝗虫). Why It is because locusts change 53 colors together with the change of the colors of the crops. When crops are green, locusts look green. When crops are brown, locusts change to the 54 color. Some other insects have to 55 only at night. It is because they have colors different 56 plants and birds can find them and eat them.
If you study the animal life, you’ll find the main use of coloring is to 57 themselves. Tigers, lions and other animals move quietly through forests. The small animals cannot find them 58 they have the colors much like those of the trees and grass.
In the sea, there’s a kind of fish with a soft body. It is not strong at all, but it can send out black liquid (液体） when it 59 danger. While the liquid spreads (展开）over, its enemies (敌人) can’t find it. And it 60 swims away. That’s why we can still see it in the sea.
参考答案：
1．worse
【详解】句意： 西蒙病了。他今天感觉比昨天更糟。根据“than”可知，应用bad的比较级worse。故填worse。
2．more serious
【详解】句意：袁江比我更认真。serious“认真的”，由than可知，此处用比较级，serious得比较级是more serious。故填more serious。
3．funnier
【详解】句意：我爸爸比我妈妈有趣多了。is后接形容词作表语，根据than可知，此空应填比较级，故填funnier。
4．fed
【详解】句意：去年我父亲饲养了100多头猪。根据“Last year”可知，此句是一般过去时，动词用过去式，故填fed。
5．more comfortable
【详解】句意：乘飞机旅行比乘火车更舒适。is后接形容词作表语，comfortable“舒服的”，根据than可知，此空应填比较级，故填more comfortable。
6．protecting
【详解】句意：我们必须注意保护地球。pay attention to doing sth.“注意做某事”，固定短语，因此此处使用动名词作宾语；protect“保护”，动词，其动名词为protecting。故填protecting。
7．beauty
【详解】句意：我想你对我的画作的美丽没有感觉。根据“the”可知，冠词后接名词，beautiful的名词形式为beauty，不可数名词。故填beauty。
8．earlier
【详解】句意：星期五下午，我们学校比平常早放学。根据than可知，此处用early的比较级earlier“更早地”。故填earlier。
9．convenient
【详解】句意：网上购物使我们的生活比以前更方便。make sth+形容词，表示“使某物……”，此空应填形容词convenient“方便的”，故填convenient。
10．taller
【详解】句意：杰克比他班上任何一个学生都高。tall是形容词，根据than可知此处应用比较级，故填taller。
11．cleverer
【详解】句意：在我看来，安娜比他哥哥聪明。根据“than”可知空处应填clever的比较级cleverer“更聪明的”。故填cleverer。
12．Thousands
【详解】句意：成千上万的人因为地震而无家可归。thousands of“成千上万的”，句首首字母大写。故填Thousands。
13．danger
【详解】句意：有时我们会把自己置于危险之中。所以尽量小心。in danger“处于危险之中”，介词短语，故此空应用dangerous“危险的”的名词形式。故填danger。
14．less
【详解】句意：我认为由于新的法律，未来的污染将会减少。根据“because of the new law.”判断，这里应该用比较级，little的比较级为less。故填less。
15．to die
【详解】句意：寒冷的天气导致植物死亡。die“死”，动词。cause sb. to do sth.意思是“使某人做某事”，故填to die。
16．C
【详解】句意：在昨天的歌唱比赛中，劳拉比其他歌手唱得更清楚。
考查副词的比较级。根据“than”可知此处用副词的比较级more clearly修饰动词sang。故选C。
17．C
【详解】句意：我认为100年后会有更少的人和更少的污染。
考查there be结构的将来时以及形容词辨析。根据“there...fewer people...”以及“in 100 years”可知此处是there be结构的将来时there will be，排除ABD。故选C。
18．A
【详解】句意：杰克是我们小组中最细心的。没有人比他学习更仔细。
考查形容词和副词的用法以及最高级的用法。第一个空作be动词的表语用形容词，排除B，根据“in our group”可知此处用形容词的最高级；根据“than”可知此处用副词的比较级修饰动词studies。故选A。
19．B
【详解】句意：——你每天是怎么来上学的，骑自行车还是步行？——自行车。它比步行快得多。
考查比较级。根据“than on foot”可知，此处需要比较级，故选B。
20．C
【详解】句意：莉莉比她的妹妹更友善。
考查形容词比较级辨析。friendly友好的，形容词原级；very friendly非常友好的，形容词原级；more friendly更加友善的，形容词比较级；the most friendly最友善的，形容词最高级。根据“than”可知，此处应用比较级。故选C。
21．C
【详解】句意：珍妮会比往常起得早赶上第一班公共汽车。
考查比较级。later更晚；latest最晚；earlier更早；earliest最早。由than可知应用比较级，且由“to catch the first bus”可知，此处应是早起为了赶上第一班公交，故选C。
22．B
【详解】句意：深圳的人口比中国其他许多城市都多。
考查比较级。根据“than”可知此处用比较级。故选B。
23．C
【详解】句意：汤姆和山姆一样外向。但是他比山姆聪明。
考查形容词的比较级。第一空放在as...as中间，意为“和……一样”，用形容词或副词原形，句型是“甲+be+as+形容词原级+as+乙”表示“甲和乙程度相同”，所以第一空填outgoing；第二空由“than”可知，要使用形容词的比较级，smart的比较级是smarter更聪明的。故选C。
24．C
【详解】句意：我认为未来会有更多的人，但污染会减少。空气会很干净。
考查形容词辨析。less更少，修饰不可数名词；fewer更少，修饰可数名词复数；more更多，修饰可数名词或不可数名词。people是集体名词，不能用less修饰，排除AD；根据“And the air will be clean.”可知空气会很干净，说明污染会更少。故选C。
25．C
【详解】句意：杰克说20年后将会有更多的树和更少的污染。
考查形容词的比较级。more更多；fewer更少的，修饰可数名词；less更少的，修饰不可数名词。根据“Jack says there will be…trees and…pollution in 20 years.”可知，tree是可数名词，因此排除D选项；pollution是不可数名词，因此排除A选项；由句意可知，此处指的是“更多树和更少的污染”，因此排除B选项。故选C。
26．A 27．B 28．D 29．A 30．C 31．A 32．C 33．A 34．B 35．D
【导语】本文主要讲的是作者和四岁的弟弟去姑妈玛丽家住了一晚，然后弟弟不喜欢飞蛾，姑妈讲了飞蛾为什么是灰色的故事。
26．句意：大卫才4岁，还怕黑，所以我们睡觉时玛丽把门厅的灯开着。
afraid害怕的；sure确定的；proud自豪的；happy开心的。根据“so Mary left the hall light on when we slept”把门厅的灯开着可知，应该是怕黑。故选A。
27．句意：然而，大卫讨厌灰蛾子在大厅灯光周围飞来飞去。
liked喜欢；hated讨厌；stopped停止；killed杀死。根据后文的“I don’t like them.”可知，应该是讨厌飞蛾。故选B。
28．句意：当她问为什么时，他只是说：“因为它们又丑又吓人，所以我不喜欢它们。”
how怎样；what什么；when什么时候；why为什么。根据后文的“Because they are ugly and scary, I don’t like them”可知，应该是问为什么。故选D。
29．句意：外表丑陋并不意味着内心不美。
mean意味着；make制作，成为；know知道；hope希望。根据后文的“moths are one of the most beautiful animals in the animal world”飞蛾是动物界最美丽的动物之一可知，应该是外表丑陋并不意味着内心不美。故选A。
30．句意：以前，天使们总是哭。
laughing笑；playing玩；crying哭；talking谈话。根据后文的“They were sad”它们很伤心可知，应该是天使们总是哭。故选C。
31．句意：善良的小飞蛾讨厌看到别人这么伤心。
kind善良的；angry生气的；ugly丑陋的；sad伤心的。根据后文的“They decided to make a rainbow(彩虹) to cheer up the angels”它们决定做一道彩虹来让天使们开心可知，应该是善良的小飞蛾。故选A。
32．句意：它们认为如果蝴蝶帮忙的话，它们可以一起做一道美丽的彩虹。
refused拒绝；advised建议；helped帮助；left离开，根据后文的“Then one of the moths went to ask the butterflies for help.”可知，应该是帮忙。故选C。
33．句意：但是蝴蝶们不想放弃它们的任何一种颜色。
give up放弃；pick up捡起；grow up长大；look up查阅，根据后文的“so the moths decided to make a rainbow themselves”于是飞蛾决定自己做一道彩虹可知，应该是蝴蝶不想放弃任何一种颜色。故选A。
34．句意：它们坚持一点一点的努力直到彩虹铺满天空才停下来。
before在……之前；till直到；after在……之后；when当……时。根据前面的“kept giving”和后面的“the rainbow went across the sky”可知，应该是“直到……才”。故选B。
35．句意：一些曾经彩色的飞蛾变成了灰色。
red红色的；yellow黄色的；green绿色的；grey灰色的，根据前文“They had given away all their colors except grey, which didn’t match the beautiful rainbow.”可知，除了灰色，它们已经用尽了所有的颜色，因为灰色与美丽的彩虹不相配。故选D。
36．D 37．A 38．A 39．D 40．B
【导语】本文讲述了喂养宠物的原因以及选择宠物狗应该注意的问题。
36．细节理解题。根据“ Dogs can be wonderful friends and companions. They get you out of the house because they need exercise and you are never lonely if you have a dog.”可知，狗可以是很好的朋友和伙伴。他们让你走出家门，因为他们需要锻炼，如果你有一只狗，你永远不会孤独。因此D选项“你可以和你的伙伴相处得很好”没有提及。故选D。
37．词义猜测题。根据“Having a dog means that you are completely responsible for another being.”可知，想要一个宠物狗，需要有责任心。故选A。
38．细节理解题。根据“Look at this site: www..au to find out about different breeds（种类）and sizes of dogs, how much food, exercise, training, etc they will need.”可知，这个网站可以了解一些关于狗的信息。故选A。
39．细节理解题。根据“So before you start asking your parents or caregivers（看护人）for a dog, you need to do some thinking and some research.”可知，D选项“狗是每个人最好的宠物。”表达的太绝对。故选D。
40．推理判断题。结合全文可知，本文讲述了喂养宠物的原因以及选择宠物狗应该注意的问题。可知在文章来自宠物杂志。故选B。
41．C 42．D 43．C 44．D 45．C
【导语】本文主要讲述了人们使用手机产生的辐射可能对蜜蜂造成伤害。
41．细节理解题。根据“There’s even one theory that mobile phones should be responsible for the disappearance of bees!”可知手机甚至可以导致蜜蜂的消失，故选C。
42．细节理解题。根据“The theory is that the radiation (辐射) given off by mobile phones does great harm to bees’ navigation systems (导航系统). Bees have built-in system a bit like GPS and this helps them find their way back to their hives (蜂巢). But recently, thousands of bees have failed to find their way home. ”可知手机的辐射使蜜蜂迷失了回家的路。故选D。
43．段落大意题。根据“The problem was first noticed by beekeepers in America and is a lot more serious than it at first seems.”以及本段可知，这段主要讲述了蜜蜂的消失是个严重的问题。故选C。
44．主旨大意题。根据“There’s even one theory that mobile phones should be responsible for the disappearance of bees!”以及全文可知作者写这篇文章是为了警告人们手机对蜜蜂可能造成的伤害。故选D。
45．推理判断题。文章主要讲述了人们使用手机产生的辐射可能对蜜蜂造成伤害，所以可以在科学部分看到。故选C。
46．A 47．E 48．C 49．B 50．D
【导语】本文是谈论几张图片的对话。
46．根据下文“Oh, but so much ice cream is on his face.”可知，图片与冰淇淋有关，选项A“这个男孩正在吃冰淇淋。”符合情景。故选A。
47．根据下文“She is running after a dog.”可知，此处是问在做什么，选项E“那个女孩在做什么？”符合情景。故选E。
48．根据上文“Look at this cute monkey!”和下文“Ha ha, I want to play with it.”可推测，猴子正在玩着某个东西，选项C“它在玩电脑游戏。”符合情景。故选C。
49．根据上文“I like monkeys.”和“I like them too.”可知，此处谈论喜欢的动物，选项B“但我最喜欢的动物是熊猫！”符合情景。故选B。
50．根据上文“Here is a photo of pandas.”和下文“They’re very cute.”可知，此处谈论熊猫，选项D“它们正在吃竹子。”符合情景。故选D。
51．colors 52．feed 53．the 54．same 55．appear 56．from 57．protect 58．because 59．faces 60．quickly
【导语】本文主要讲述在自然界中，一些动物用颜色来保护自己。
51．句意：因为它们可以用不同颜色来保证它们自己安全。根据“Do you know why different animals or insects have their own colors ”可知，此处讲的是动物有不同颜色的原因，color“颜色”，different后跟名词复数。故填colors。
52．句意：一些鸟以昆虫为食，但是对它们来说捉蝗虫并不容易。鸟吃昆虫，feed on“以……为食”，固定搭配，此处陈述客观事实，用一般现在时，主语是复数名词，谓语动词用原形。故填feed。
53．句意：因为蝗虫会随着农作物颜色的变化改变颜色。此处特指蝗虫身上的颜色，应填the表特指。故填the。
54．句意：当农作物变成棕色时，蝗虫会变成相同的颜色。根据“When crops are green, locusts look green.”可知，蝗虫会变成跟农作物相同的颜色，same“相同的”，作定语修饰color。故填same。
55．句意：一些其他的昆虫只能在晚上出现。根据“It is because they have colors different…”可知，与植物颜色不同，所以只能晚上出现，appear“出现”，have to后跟动词原形。故填appear。
56．句意：因为他们和植物有不同的颜色，鸟类会找到并吃了它们。different from“与……不同”，固定搭配。故填from。
57．句意：如果你研究动物生活，你会发现颜色的主要用处是保护它们自己。根据“The small animals cannot find them…they have the colors much like those of the trees and grass.”可知，是保护自己不被发现，protect“保护”，空处与to构成不定式，因此填原形。故填protect。
58．句意：小动物不能发现他们因为他们的颜色很像树木和草。根据“The small animals cannot find them…they have the colors much like those of the trees and grass.”可知，此处是前果后因，因此用because引导原因状语从句。故填because。
59．句意：它一点也不强壮，但是当它面临危险时会发出黑色液体。根据“It is not strong at all, but it can send out black liquid (液体） when it…danger.”可知，是面临危险时会释放黑色液体，face“面对”，时态是一般现在时，主语是三单，应填三单式faces。故填faces。
60．句意：它会迅速游走。根据“its enemies (敌人) can’t find it. ”可知，敌人找不到它，这种鱼会迅速游走，此处修饰动词用副词quickly。故填quickly。
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Unit4 topic1 单元知识梳理+话题过关检测（带答案详解）
Unit4 topic1 单元知识梳理
一、重点短语。
think about 思考，考虑
in the countryside 在乡下
enjoy the beauty of nature 享受大自然的美
on the farm 在农场
the nicest of all 所有中最好的
play with sb 和某人玩
talk about sth with sb 和某人谈论某事
like sth better 更喜欢某物
make sb happy 使某人开心
sing to sb 给某人唱歌
like sth best 最喜欢某物
both ...and 两者都
chat with sb. 和某人聊天
run after 追赶
live a happy life 过着幸福的生活
as we know 众所周知
be important to sb 对某人来说是重要的
share ... with 与……分享
provide sth for sb 为某人提供某物
thousands of 成千上万的
nowhere else 没有别的地方
feed on 以……为食
be in danger 在危险中
in number 在数量上
control the climate 调 节 气 候
die out 灭 绝
less and less 越 来 越 少
play an important part ( in sth.) 在某事中起重要作用； 参与（某事）
smaller and smaller越来越小
Southwest China=the southwest of China 中国西南部
二、重点知识
beauty ['bju:t ] n.美丽，美人 nature ['ne t (r)] n.自然；性质；种类
the beauty of nature 自然的美
【技巧总结】
beauty (n.) (adj.) beautiful (adv.) beautifully
nature (n.) (adj.) natural (adv.) naturally
sheep [ i:p] n.(.sheep)(绵)羊;羊皮;驯服者
sheep 单复数同形
【技巧总结】
deer n. 鹿； Chinese n.中国人； Japanese n.日本人
thin [θ n]adj.瘦的；薄的；稀的
比较级 thinner 更瘦； 最高级thinnest 最瘦
【典例分析】
rose [r z] n.玫瑰花； 复数roses
frog [fr ɡ] n.青蛙; 复数 frogs
thick [θ k] adj.茂密的，厚的
thick forests 茂密的森林
ground [graund] n.地，地面；wet [wet] adj.湿的，潮湿的
e.g. The ground is always wet. 地总是湿的.
cover [k v ] v./n. 覆盖，掩盖，盖子
cover…with… 用…覆盖…
e.g. He covers his face with his hands. 他用手捂住脸.
nowhere ['n uwe ] adv.无处，哪里都不
somewhere 某些地方 everywhere 每一个地方 anywhere 任何地方
【技巧总结】
somewhere 意为“一些地方”，常用于肯定句中。
anywhere 意为“任何地方”，可用于肯定句、否定句或一般疑问句中。
nowhere 意为“没有地方”，本身具有否定含义。
e.g. I want to go somewhere warm.我想去一个温暖的地方。
Did you find anywhere relaxing 你找到令人放松的地方了吗？
During the winter holiday I went nowhere, just stayed at home. 整个寒假，我哪儿都没有去，就待在家里。
control [k n'tr l] v.&n.控制; climate [ kla m t] n.气候
control the climate 控制气候
die [da ] v. 死
die out 灭绝；消失
protect [pr 'tekt] v.保护
【技巧总结】
protect sth. / sb. from doing sth. 保护某物/某人免于……
e.g.The hat can protect his face from the sun. 这顶帽子能保护他的脸免受于太阳光照射。
feed [fi:d] v.喂(养)；饲养
feed on 以......为食
e.g. Pandas feed on bamboo. 熊猫以竹子为食.
less [les] 较少的；少于，小于
less and less 越来越少
e.g. less and less land 越来越少的土地
whale [we l] n.鲸
blue whales 蓝鲸
sea [si:]n.海，海洋
sea animals 海洋动物
bone [b n] n.骨头,骨质
kill tigers for fur and bones 杀死老虎以得到皮毛和骨头
17.think about 意 为 “ 思 考 ， 考 虑 ……" ， 后 接 名 词 、 代 词 或 动 名 词 。
e.g. I'm thinking about going there some day. 我 在 考 虑 有 一 天 去 那 儿 。
【技巧总结】
think over 仔 细 考 虑 。
e.g. Think it over, then you will have a good idea．好好想想，你就会有一个好主意。
think of … 认 为……， 想 起 ……。 有 时 可 以 与 think about 互 换 。
e.g. I tried not to think of/about Richard. 我 尽 量 不 去 想 理 查 德 。
18.run after 追赶，追逐
e.g. The cat is running after a mouse. 猫在追赶一只老鼠.
19.like... better更喜欢...
e.g. I like apples better.我更喜欢苹果。
【技巧总结】
like...best最喜欢...
e.g. I like bananas best.我最喜欢香蕉。
20.both ... and... 表示“不仅…而且…; …和…(两者)都”。其谓语动词用复数。
e.g. Both Jane and Tom love this movie. 简和汤姆都喜欢这部电影.
21.be important to sb.对某人来讲很重要
e.g. The money is important to everyone,but it’s not the most important.
钱对每个人来讲都很重要，但是它却不是最重要的。
22.thousands and thousands of成千上万的
hundreds of 数百的; thousands of 数千的
【技巧总结】
当hundred,thousand,million,billion等表示不确定的数目时,常用复数形式，后面跟介词of; 当这些词与具体数词连用时,则不用复数形式。
thousands of 数千的; five hundred 5百
23.play an important part ( in sth.) 在某事中起重要作用
play a part ( in sth.)（在某事中）起作用;参与（某事）
e.g. He plays an active part in class activities. 他积极参加班级活动。
24.smaller and smaller越来越小。形容词比较级+ and +形容词比较级：越来越...
e.g. The weather gets warmer and warmer.天气变得越来越暖和了。
【技巧总结】
the+形容词比较级，the+形容词比较级，越...，就越...
e.g. The more you eat,the fatter you will be.你吃得越多，就会越胖。
25.in danger处在危险中；out of danger脱离危险
e.g. We are in danger now. 我们现在处于危险中.
【技巧总结】
in+表示情绪或者处境的名词：处于某种心态或境地。
in fear处于恐惧中; in anger生着气; in need在患难中
三．重难点详解
1. I think the countryside is much quieter than the city, too.我认为乡下也比城市更加安静。
quieter than..比...更安静。
比较级+than......比...更...，用于两个人或事物之间进行比较。than后边的比较对象可以是一个词，一个短语或一个句子。
e.g. The pig is stronger than the hen. 猪比鸡强壮得多.
【典例分析】
2. As we know, plants and animals are important to us.We share the same world with them.
我们和他们（动植物）共享这个世界。
be important to sb 对某人来说，很重要
share sth. with sb. 与某人分享某物，
e.g. I want to share my happiness with you. 我想和你分享我的快乐.
【典例分析】
3. Rainforests cover 6% of the earth’s surface.
1) cover v.覆盖；cover… with… 用…覆盖…
e.g. He covered his face with a newspaper. 他用报纸盖住了他的脸.
2) be covered with… 被…覆盖
e.g. The land is covered with snow. 土地被雪覆盖了.
3) 6% 读作：six percent
【技巧总结】
数词 % + of +可数名词复数作主语，谓语动词用复数。
数词 % + of +不可数名词/可数名词单数作主语，谓语动词用单数。
e.g. 50% of the students in our class are boys.
70% of the earth is water.\
【典例分析】
Thousands and thousands of animals live in rainforests.
thousands and thousands of 成 百 万 上 千 万 的
【技巧总结】
类 似 的 表 达 方 式 有 ：
hundreds of 成 百 上 千 的 ； thousands of 成 千 上 万 的 ； millions of 数 百 万 的
注 意 ：
1） 与 具 体 数 字 相 连 不 加 s. e.g. two thousand books 两 千 本 书
2) 用 复 数 形 式 时 后 常 跟of. e.g. hundreds of teachers 数 百 名 教 师
3） a few, several等词修饰时也不加s. e.g. several thousand people 几千人
【典例分析】
5. The plants in the forests help to make the air fresher and cleaner.
1) help (sb. ) (to)do sth. 帮 助 （ 某 人 ） 做 …… " ， 在 动 词 help 后 的 不 定 式 ， 带 to 或 不 带 to 均 可 。
e.g. I'm going to help my mother (to) clean the house. 我 准 备 帮 助 妈 妈 打 扫 房 间 。
2）make the air fresher 使空气更清新，make + sb. /sth. + adj.“使 …… 怎么样"。
e.g. The bad news make me sad. 这 条 坏 消 息 使 我 很 难 过。
His mother made him stand behind the door. 他 妈 妈 让 他 站 在 门 后 。
重点语法.
形容词的比较级和最高级
形容词比较级在句子中的运用：两个事物或人的比较用比较级，比较级由“形容词比较级＋than＋…，”构成表示在两者中间一方比另一方“更加…”。
形容词最高级用于三者以上事物或人的比较，形容词的结构形式是“定冠词the＋形容词最高级＋名词＋表示范围的短语或从句”(如all, of all, of the tree, in，among等)。
形容词比较级和最高级的构成：
（一）规则变化：
一般在词尾加-er（比较级），-est（最高级）：tall—taller—tallest,fresh—fresher —freshest
以字母e结尾的形容词只加-r（比较级），-st（最高级）：nice—nicer—nicest ,able—abler—ablest
以重读闭音节结尾的词，词尾只有一个辅音字母时，应双写这个辅音字母，再加-er（比较级），-est （最高级）：“又大又胖又热又湿又瘦 ”
big—bigger—biggest,fat-fatter-fattest,hot-hotter-hottest,wet-wetter-wettest,thin-thinner-thinnest
以辅音字母+y结尾的双音节词，先改y为i，再加-er（比较级），-est（最高级）：
easy—easier—easiest, dry-drier-driest, heavy-heavier-heaviest
部分双音节词和多音节词，在前面加more（比较级），most（最高级）来构成比较级和最高级： easily—more easily—most easily,active— more active—most active
（二）不规则变化
good / well—better—best ; bad / ill—worse—worst ; old—older/elder—oldest/eldest
many / much—more—most ; little/few—less—least ; far—farther/further—farthest/furthest
形容词比较等级的用法
级别 比较程度 表达方式和意义 例 句 备 注
原 级 同等程度 肯定形式 A+be+as+adj.原级+as+B（表示A和B一样） Art is as interesting as music.Lucy is as old as Lily.
否定形式 A+be+not+so/as+adj.原级+as+B(表示A不如/没有B...) English is not so difficult as science.Mary is not so/as careful as I.
比较级 不同程度（用于两者比较） A+be+adj.比较级+than+B(表示A比B更……) Jim is older than Lucy.This apple is bigger than that one. 表示一方超过另一方的程度或数量时，可在比较级前加表示程度的状语，如even、a lot、a bit、a little、still、much、far、no、not、by far、three years,five times,20%等修饰。I am two years older than Lily.我比莉莉大两岁。Our school is twice larger than theirs.
程度加深 比较级+and+比较级（越来越……）The + 比较级，the + 比较级（越……, 就越……） He is growing taller and taller.The more , the better .（越多越好） more and more beautiful
其他用法 ①比较级+than+any other +可数名词单数（适用于范围一致时） ②比较级+ than+ the other +可数名词复数 He is taller than any other student / the other students in his class. 比较时，不能与自身比较。 王磊比他班的任何和一个学生都高。错误：Wang Lei is taller than any student in his class.正确：Wang Lei is taller than any other student in his class. 比较级+ than+any +可数名词单数（适用于范围不一致时）He is taller than any student in my class.
表示“比较A和B，那一个较......”。如：Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？ 表示“比较A和B，那一个较......”。如：Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？ 表示“比较A和B，那一个较......” Which language is more difficult,English or Chinese 那种语言比较难学，英语还是汉语？
“the+比较级+of the two”意为“两个中比较的......”.如： Mary is the cleverer of the two.玛丽是这两个人中比较聪明的。He is the taller of the two brothers.
最高级 最高程度（用于三者或三者以上） the +最高级+of /in(在...中最…) Spring is the best season of all the years.China is the largest country in Asia. 在同类事物范围内进行比较用of，在一定的地域空间内用in.Tom is the tallest of these children.汤姆在这些孩子中是最高的。Tom is the tallest in our class.汤姆在我们班是最高的。
其他用法 表示第几高/长/远：序数词后面接最高级。 The Yangtze River is the first longest river in China.长江是中国第一长河。I think computer is the second most useful invention.我认为电脑是第二有用的发明。
在比较结构中需注意的问题：
1.原级：形容词原级常用so,very,too,enough,quite等词修饰
e.g. He often feels very lonely.他常常觉得很寂寞。
Those flowers are so beautiful.这些花如此美丽。
原级、比较级与最高级之间有时可以转换，意思不变。
e.g. Tom is not as tall as Jim.=Tom is shorter than Jim.
The song is more popular than the other songs.=The song is the most popular one of all the songs.
3.在表示比较的句子中，如果比较对象相同，为避免重复，在从句中常用one、ones、the one、that、those等词代替前面提到的名词。that指物,one既可指人又可指物。that可代替可数名词单数和不可数名词，而one只能代替可数名词单数。
e.g. There are not so/as many apples in this basket as those in that basket.
这个篮子里的苹果没有那个篮子里的(苹果）多。
4. one of +形容词最高级+名词复数”意为“最......的.....之一”。
e.g. Beijing is one of the largest cities in China.北京是中国最大的城市之一。
话题过关检测
一、用所给单词适当形式填空
1．Simon is ill. He feels even today than yesterday. (bad)
2．Yuan Jiang is (serious) than me.
3．My father is much (funny) than my mother.
4．Last year my father (feed) more than 100 pigs.
5．Travelling by air is （comfort）than by train.
6．We must pay attention to (protect) the earth.
7．I think you have no feeling for the (beautiful) of my paintings.
8．On Friday afternoon, our school finishes (early) than usual.
9．Shopping online makes our lives more (convenience) than before.
10．Jack is (tall) than any other student in his class.
11．In my opinion, Anna is (clever) than his brother.
12． (thousand) of people became homeless because of the earthquake.
13．Sometimes we put ourselves in . So try to be careful enough. (dangerous)
14．I think there will be (little) pollution in the future because of the new law.
15．The cold weather caused the plants (die).
二、完形填空
16．Laura sang ________ than the other singers in the singing competition yesterday.
A．clear B．clearly C．more clearly D．much clearly
17．I think there ________ fewer people and ________ pollution in 100 years.
A．will have; less B．are; fewer C．will be; less D．have; little
18．Jack is ________ in our group. No one studies ________ than him.
A．the most careful; more carefully B．the most carefully; more careful
C．more careful; the most carefully D．careful; more carefully
19．—How do you come to school every day, by bike or on foot
—By bike. It’s much ________ than on foot.
A．fast B．faster C．fastest D．the fastest
20．Lily is ________ than her sister.
A．friendly B．very friendly C．more friendly D．the most friendly
21．Jenny will get up ________ than usual to catch the first bus.
A．later B．latest C．earlier D．earliest
22．The population of Shenzhen is _______ than that of many other cities in China.
A．large B．larger C．largest D．the largest
23．Tom is as ________ as Sam. But he is ________ than Sam.
A．more outgoing, smarter B．more outgoing, smart C．outgoing, smarter
24．I think there will be ________ people but ________ pollution in the future. And the air will be clean.
A．less; fewer B．fewer; more C．more; less D．less; more
25．Jack says there will be ________ trees and ________ pollution in 20 years.
A．more, fewer B．fewer, less C．more, less D．less, less
三、完形填空
通读下面短文，掌握其大意，然后在每小题所给的四个选项中，选出最佳答案，并将答题卡上对应题目所选的选项涂黑。
When I was about six years old, my brother David and I visited our aunt, Mary. We stayed in her house for a night. David was only 4 years old, and was still 26 of the dark, so Mary left the hall light on when we slept.
But David 27 the grey moths（蛾）flying around the hall light. He asked Mary to make the moths go away. When she asked 28 , he simply said, “Because they are ugly and scary, I don’t like them.” Mary laughed and said, “Being ugly outside doesn’t 29 not being beautiful inside. In fact, moths are the most beautiful animals in the animals world.”
Once, the angels（天使）were 30 . They were sad because it was raining heavily. The 31 little moths hated to see others so sad. They decided to make a rainbow（彩虹）to cheer up the angels. They thought if the butterflies 32 , they could make a beautiful rainbow together.
Then one of the moths went to ask the butterflies for help. But the butterflies didn’t want to 33 any of their colors, so the moths decided to make a rainbow themselves. They beat their wings very hard and the colors on them made a rainbow. They kept giving a little more and a little more 34 the window went across the sky. They had given away all their colors except grey, which didn’t match the beautiful rainbow.
“Then the once-colorful moths became 35 . The angels saw the rainbow and smiled...” My brother went to sleep with that story and hasn’t been afraid of moths since then.
26．A．afraid B．sure C．proud D．happy
27．A．liked B．hated C．let D．killed
28．A．how B．what C．when D．why
29．A．mean B．make C．know D．hope
30．A．laughing B．playing C．crying D．talking
31．A．kind B．angry C．ugly D．sad
32．A．refused B．advised C．helped D．left
33．A．give up B．pick up C．grow up D．look up
34．A．before B．till C．after D．when
35．A．red B．yellow C．green D．grey
四、阅读理解
A
Having a dog as part of the family can be really great. There are so many good things about having a dog. For example, dogs can be wonderful friends and companions. They get you out of the house because they need exercise and you are never lonely if you have a dog. Getting the right dog for you.
Having a dog means that you are completely responsible for another being. So before you start asking your parents or caregivers（看护人）for a dog, you need to do some thinking and some research.
Research the type of dog who would fit in well with your family lifestyle（生活方式）. Look at this site: www..au to find out about different breeds（种类）and sizes of dogs, how much food, exercise, training, etc they will need.
Who is going to take care of the dog, not just for the first week
How much time will the dog have to be by itself
What are the costs of having a dog This includes（包括）buying the dog, food, registration（登记） with the local council, visits to the vet（兽医）for injections（注射）and so on.
What about training the dog Is there somewhere nearby where you can join a dog training class
Is there a dog park or beach nearby where the dog can run free, after he has learned to come back when you call
36．Which of the following is NOT mentioned（提及）if you have a dog
A．You can have a wonderful friend
B．You can go out to exercise.
C．You won’t be lonely
D．You can get on well with your partners
37．The underlined word “responsible” means ________ in Chinese.
A．有责任的 B．兴奋的 C．细心的 D．有学识的
38．From the site www..au, you can ________.
A．find some information about dogs. B．find something about your friends.
C．know the price of different dog breeds D．find who can have a pet dog
39．Which is NOT true according to the passage
A．Having a dog as a pet must be very great.
B．You must do some thinking before having a pet dog.
C．You must think the cost of having a pet dog.
D．Dogs are the best pet for everyone.
40．The passage is probably from ________.
A．a health magazine. B．a pet magazine.
C．a paper of daily news D．a novel
B
Mobile phones are one of the most useful inventions of the last 50 years, but not everything that is said about them is good. Mobiles are often believed to be the cause of a number of things from poor eyesight and headaches to house fires. There’s even one theory that mobile phones should be responsible for the disappearance of bees!
The theory is that the radiation (辐射) given off by mobile phones does great harm to bees’ navigation systems (导航系统). Bees have built-in system a bit like GPS and this helps them find their way back to their hives (蜂巢). But recently, thousands of bees have failed to find their way home. It is believed they are dying far from their hives.
The problem was first noticed by beekeepers in America and is a lot more serious than it at first seems. The important thing about bees is that most of the crops in many countries of the world are pollinated by them. Without bees, the crops can’t continue to grow. Many beekeepers in Europe have reported losing between 50 and 70 percent of their bees. Jim Piper, London beekeeper, said to the reporter, “My business is becoming wore. Twenty-nine of my forty hives are now empty.”
Nobody knows for sure whether the theory is true or not, but it’s a fact that bees are disappearing in very large numbers. And we can’t manage without them. Einstein said that if all our bees disappeared, man would only live for four more years! If the mobile phone theory is correct, we need to do something about it right now—before it’s too late.
41．What might be caused by mobiles according to Paragraph 1
A．Poor listening. B．The forest fires.
C．The disappearance of bees. D．Terrible toothache.
42．What does the theory in the passage say
A．Bees have GPS inside their bodies.
B．Mobiles have an influence on bees’ hives.
C．The radiation makes bees unable to fly.
D．The radiation makes bees lose their way home.
43．What does Paragraph-3 mainly tell us
A．Crops will stop growing.
B．Beekeepers’ business is getting worse.
C．Bees’ disappearing is a serious problem.
D．Beekeepers in Europe found the problem first.
44．The author wrote this passage to ________.
A．cull on people to help beekeepers.
B．show how a bee’s built-in system works.
C．ask people to stop using mobiles right away.
D．warn people of the possible harm mobiles do to bees.
45．In which section of the newspaper can we probably read his article
A．Education. B．Fashion. C．Science. D．Sport.
五、补全对话
请通读下面对话，根据对话内容，从选项中选出能填入空白处的最佳选项，选项中有一项为多余选项。
A: How interesting these pictures are!
B: Yes. Look at this one. 46
A: Oh, but so much ice cream is on his face.
B: Yes, so funny. Look at another one. 47
A: She is running after a dog. But her dress is too long. She can’t run fast.
B: Look at this cute monkey! 48
A: Ha ha, I want to play with it. I like monkeys.
B: I like them too. 49
A: Here is a photo of pandas.
B: Oh, yes. 50 They’re very cute.
A．The boy is eating ice cream.
B．But my favourite animals are pandas!
C．It’s playing computer games.
D．They’re eating bamboo.
E．What’s the girl doing
F．Where are they
六、短文填空
阅读短文，从方框中选择适当的词并用其正确形式填空，使短文通顺、意思完整，请将答案写在题号后的横线上，每空限填一词，每词限用一次。
protect, color, feed, the, because, quickly, from, same, appear, face
Do you know why different animals or insects have their own colors Because they can use different 51 to keep themselves safe.
Some birds 52 on insects, but it’s not easy for them to catch locusts (蝗虫). Why It is because locusts change 53 colors together with the change of the colors of the crops. When crops are green, locusts look green. When crops are brown, locusts change to the 54 color. Some other insects have to 55 only at night. It is because they have colors different 56 plants and birds can find them and eat them.
If you study the animal life, you’ll find the main use of coloring is to 57 themselves. Tigers, lions and other animals move quietly through forests. The small animals cannot find them 58 they have the colors much like those of the trees and grass.
In the sea, there’s a kind of fish with a soft body. It is not strong at all, but it can send out black liquid (液体） when it 59 danger. While the liquid spreads (展开）over, its enemies (敌人) can’t find it. And it 60 swims away. That’s why we can still see it in the sea.
参考答案：
1．worse
【详解】句意： 西蒙病了。他今天感觉比昨天更糟。根据“than”可知，应用bad的比较级worse。故填worse。
2．more serious
【详解】句意：袁江比我更认真。serious“认真的”，由than可知，此处用比较级，serious得比较级是more serious。故填more serious。
3．funnier
【详解】句意：我爸爸比我妈妈有趣多了。is后接形容词作表语，根据than可知，此空应填比较级，故填funnier。
4．fed
【详解】句意：去年我父亲饲养了100多头猪。根据“Last year”可知，此句是一般过去时，动词用过去式，故填fed。
5．more comfortable
【详解】句意：乘飞机旅行比乘火车更舒适。is后接形容词作表语，comfortable“舒服的”，根据than可知，此空应填比较级，故填more comfortable。
6．protecting
【详解】句意：我们必须注意保护地球。pay attention to doing sth.“注意做某事”，固定短语，因此此处使用动名词作宾语；protect“保护”，动词，其动名词为protecting。故填protecting。
7．beauty
【详解】句意：我想你对我的画作的美丽没有感觉。根据“the”可知，冠词后接名词，beautiful的名词形式为beauty，不可数名词。故填beauty。
8．earlier
【详解】句意：星期五下午，我们学校比平常早放学。根据than可知，此处用early的比较级earlier“更早地”。故填earlier。
9．convenient
【详解】句意：网上购物使我们的生活比以前更方便。make sth+形容词，表示“使某物……”，此空应填形容词convenient“方便的”，故填convenient。
10．taller
【详解】句意：杰克比他班上任何一个学生都高。tall是形容词，根据than可知此处应用比较级，故填taller。
11．cleverer
【详解】句意：在我看来，安娜比他哥哥聪明。根据“than”可知空处应填clever的比较级cleverer“更聪明的”。故填cleverer。
12．Thousands
【详解】句意：成千上万的人因为地震而无家可归。thousands of“成千上万的”，句首首字母大写。故填Thousands。
13．danger
【详解】句意：有时我们会把自己置于危险之中。所以尽量小心。in danger“处于危险之中”，介词短语，故此空应用dangerous“危险的”的名词形式。故填danger。
14．less
【详解】句意：我认为由于新的法律，未来的污染将会减少。根据“because of the new law.”判断，这里应该用比较级，little的比较级为less。故填less。
15．to die
【详解】句意：寒冷的天气导致植物死亡。die“死”，动词。cause sb. to do sth.意思是“使某人做某事”，故填to die。
16．C
【详解】句意：在昨天的歌唱比赛中，劳拉比其他歌手唱得更清楚。
考查副词的比较级。根据“than”可知此处用副词的比较级more clearly修饰动词sang。故选C。
17．C
【详解】句意：我认为100年后会有更少的人和更少的污染。
考查there be结构的将来时以及形容词辨析。根据“there...fewer people...”以及“in 100 years”可知此处是there be结构的将来时there will be，排除ABD。故选C。
18．A
【详解】句意：杰克是我们小组中最细心的。没有人比他学习更仔细。
考查形容词和副词的用法以及最高级的用法。第一个空作be动词的表语用形容词，排除B，根据“in our group”可知此处用形容词的最高级；根据“than”可知此处用副词的比较级修饰动词studies。故选A。
19．B
【详解】句意：——你每天是怎么来上学的，骑自行车还是步行？——自行车。它比步行快得多。
考查比较级。根据“than on foot”可知，此处需要比较级，故选B。
20．C
【详解】句意：莉莉比她的妹妹更友善。
考查形容词比较级辨析。friendly友好的，形容词原级；very friendly非常友好的，形容词原级；more friendly更加友善的，形容词比较级；the most friendly最友善的，形容词最高级。根据“than”可知，此处应用比较级。故选C。
21．C
【详解】句意：珍妮会比往常起得早赶上第一班公共汽车。
考查比较级。later更晚；latest最晚；earlier更早；earliest最早。由than可知应用比较级，且由“to catch the first bus”可知，此处应是早起为了赶上第一班公交，故选C。
22．B
【详解】句意：深圳的人口比中国其他许多城市都多。
考查比较级。根据“than”可知此处用比较级。故选B。
23．C
【详解】句意：汤姆和山姆一样外向。但是他比山姆聪明。
考查形容词的比较级。第一空放在as...as中间，意为“和……一样”，用形容词或副词原形，句型是“甲+be+as+形容词原级+as+乙”表示“甲和乙程度相同”，所以第一空填outgoing；第二空由“than”可知，要使用形容词的比较级，smart的比较级是smarter更聪明的。故选C。
24．C
【详解】句意：我认为未来会有更多的人，但污染会减少。空气会很干净。
考查形容词辨析。less更少，修饰不可数名词；fewer更少，修饰可数名词复数；more更多，修饰可数名词或不可数名词。people是集体名词，不能用less修饰，排除AD；根据“And the air will be clean.”可知空气会很干净，说明污染会更少。故选C。
25．C
【详解】句意：杰克说20年后将会有更多的树和更少的污染。
考查形容词的比较级。more更多；fewer更少的，修饰可数名词；less更少的，修饰不可数名词。根据“Jack says there will be…trees and…pollution in 20 years.”可知，tree是可数名词，因此排除D选项；pollution是不可数名词，因此排除A选项；由句意可知，此处指的是“更多树和更少的污染”，因此排除B选项。故选C。
26．A 27．B 28．D 29．A 30．C 31．A 32．C 33．A 34．B 35．D
【导语】本文主要讲的是作者和四岁的弟弟去姑妈玛丽家住了一晚，然后弟弟不喜欢飞蛾，姑妈讲了飞蛾为什么是灰色的故事。
26．句意：大卫才4岁，还怕黑，所以我们睡觉时玛丽把门厅的灯开着。
afraid害怕的；sure确定的；proud自豪的；happy开心的。根据“so Mary left the hall light on when we slept”把门厅的灯开着可知，应该是怕黑。故选A。
27．句意：然而，大卫讨厌灰蛾子在大厅灯光周围飞来飞去。
liked喜欢；hated讨厌；stopped停止；killed杀死。根据后文的“I don’t like them.”可知，应该是讨厌飞蛾。故选B。
28．句意：当她问为什么时，他只是说：“因为它们又丑又吓人，所以我不喜欢它们。”
how怎样；what什么；when什么时候；why为什么。根据后文的“Because they are ugly and scary, I don’t like them”可知，应该是问为什么。故选D。
29．句意：外表丑陋并不意味着内心不美。
mean意味着；make制作，成为；know知道；hope希望。根据后文的“moths are one of the most beautiful animals in the animal world”飞蛾是动物界最美丽的动物之一可知，应该是外表丑陋并不意味着内心不美。故选A。
30．句意：以前，天使们总是哭。
laughing笑；playing玩；crying哭；talking谈话。根据后文的“They were sad”它们很伤心可知，应该是天使们总是哭。故选C。
31．句意：善良的小飞蛾讨厌看到别人这么伤心。
kind善良的；angry生气的；ugly丑陋的；sad伤心的。根据后文的“They decided to make a rainbow(彩虹) to cheer up the angels”它们决定做一道彩虹来让天使们开心可知，应该是善良的小飞蛾。故选A。
32．句意：它们认为如果蝴蝶帮忙的话，它们可以一起做一道美丽的彩虹。
refused拒绝；advised建议；helped帮助；left离开，根据后文的“Then one of the moths went to ask the butterflies for help.”可知，应该是帮忙。故选C。
33．句意：但是蝴蝶们不想放弃它们的任何一种颜色。
give up放弃；pick up捡起；grow up长大；look up查阅，根据后文的“so the moths decided to make a rainbow themselves”于是飞蛾决定自己做一道彩虹可知，应该是蝴蝶不想放弃任何一种颜色。故选A。
34．句意：它们坚持一点一点的努力直到彩虹铺满天空才停下来。
before在……之前；till直到；after在……之后；when当……时。根据前面的“kept giving”和后面的“the rainbow went across the sky”可知，应该是“直到……才”。故选B。
35．句意：一些曾经彩色的飞蛾变成了灰色。
red红色的；yellow黄色的；green绿色的；grey灰色的，根据前文“They had given away all their colors except grey, which didn’t match the beautiful rainbow.”可知，除了灰色，它们已经用尽了所有的颜色，因为灰色与美丽的彩虹不相配。故选D。
36．D 37．A 38．A 39．D 40．B
【导语】本文讲述了喂养宠物的原因以及选择宠物狗应该注意的问题。
36．细节理解题。根据“ Dogs can be wonderful friends and companions. They get you out of the house because they need exercise and you are never lonely if you have a dog.”可知，狗可以是很好的朋友和伙伴。他们让你走出家门，因为他们需要锻炼，如果你有一只狗，你永远不会孤独。因此D选项“你可以和你的伙伴相处得很好”没有提及。故选D。
37．词义猜测题。根据“Having a dog means that you are completely responsible for another being.”可知，想要一个宠物狗，需要有责任心。故选A。
38．细节理解题。根据“Look at this site: www..au to find out about different breeds（种类）and sizes of dogs, how much food, exercise, training, etc they will need.”可知，这个网站可以了解一些关于狗的信息。故选A。
39．细节理解题。根据“So before you start asking your parents or caregivers（看护人）for a dog, you need to do some thinking and some research.”可知，D选项“狗是每个人最好的宠物。”表达的太绝对。故选D。
40．推理判断题。结合全文可知，本文讲述了喂养宠物的原因以及选择宠物狗应该注意的问题。可知在文章来自宠物杂志。故选B。
41．C 42．D 43．C 44．D 45．C
【导语】本文主要讲述了人们使用手机产生的辐射可能对蜜蜂造成伤害。
41．细节理解题。根据“There’s even one theory that mobile phones should be responsible for the disappearance of bees!”可知手机甚至可以导致蜜蜂的消失，故选C。
42．细节理解题。根据“The theory is that the radiation (辐射) given off by mobile phones does great harm to bees’ navigation systems (导航系统). Bees have built-in system a bit like GPS and this helps them find their way back to their hives (蜂巢). But recently, thousands of bees have failed to find their way home. ”可知手机的辐射使蜜蜂迷失了回家的路。故选D。
43．段落大意题。根据“The problem was first noticed by beekeepers in America and is a lot more serious than it at first seems.”以及本段可知，这段主要讲述了蜜蜂的消失是个严重的问题。故选C。
44．主旨大意题。根据“There’s even one theory that mobile phones should be responsible for the disappearance of bees!”以及全文可知作者写这篇文章是为了警告人们手机对蜜蜂可能造成的伤害。故选D。
45．推理判断题。文章主要讲述了人们使用手机产生的辐射可能对蜜蜂造成伤害，所以可以在科学部分看到。故选C。
46．A 47．E 48．C 49．B 50．D
【导语】本文是谈论几张图片的对话。
46．根据下文“Oh, but so much ice cream is on his face.”可知，图片与冰淇淋有关，选项A“这个男孩正在吃冰淇淋。”符合情景。故选A。
47．根据下文“She is running after a dog.”可知，此处是问在做什么，选项E“那个女孩在做什么？”符合情景。故选E。
48．根据上文“Look at this cute monkey!”和下文“Ha ha, I want to play with it.”可推测，猴子正在玩着某个东西，选项C“它在玩电脑游戏。”符合情景。故选C。
49．根据上文“I like monkeys.”和“I like them too.”可知，此处谈论喜欢的动物，选项B“但我最喜欢的动物是熊猫！”符合情景。故选B。
50．根据上文“Here is a photo of pandas.”和下文“They’re very cute.”可知，此处谈论熊猫，选项D“它们正在吃竹子。”符合情景。故选D。
51．colors 52．feed 53．the 54．same 55．appear 56．from 57．protect 58．because 59．faces 60．quickly
【导语】本文主要讲述在自然界中，一些动物用颜色来保护自己。
51．句意：因为它们可以用不同颜色来保证它们自己安全。根据“Do you know why different animals or insects have their own colors ”可知，此处讲的是动物有不同颜色的原因，color“颜色”，different后跟名词复数。故填colors。
52．句意：一些鸟以昆虫为食，但是对它们来说捉蝗虫并不容易。鸟吃昆虫，feed on“以……为食”，固定搭配，此处陈述客观事实，用一般现在时，主语是复数名词，谓语动词用原形。故填feed。
53．句意：因为蝗虫会随着农作物颜色的变化改变颜色。此处特指蝗虫身上的颜色，应填the表特指。故填the。
54．句意：当农作物变成棕色时，蝗虫会变成相同的颜色。根据“When crops are green, locusts look green.”可知，蝗虫会变成跟农作物相同的颜色，same“相同的”，作定语修饰color。故填same。
55．句意：一些其他的昆虫只能在晚上出现。根据“It is because they have colors different…”可知，与植物颜色不同，所以只能晚上出现，appear“出现”，have to后跟动词原形。故填appear。
56．句意：因为他们和植物有不同的颜色，鸟类会找到并吃了它们。different from“与……不同”，固定搭配。故填from。
57．句意：如果你研究动物生活，你会发现颜色的主要用处是保护它们自己。根据“The small animals cannot find them…they have the colors much like those of the trees and grass.”可知，是保护自己不被发现，protect“保护”，空处与to构成不定式，因此填原形。故填protect。
58．句意：小动物不能发现他们因为他们的颜色很像树木和草。根据“The small animals cannot find them…they have the colors much like those of the trees and grass.”可知，此处是前果后因，因此用because引导原因状语从句。故填because。
59．句意：它一点也不强壮，但是当它面临危险时会发出黑色液体。根据“It is not strong at all, but it can send out black liquid (液体） when it…danger.”可知，是面临危险时会释放黑色液体，face“面对”，时态是一般现在时，主语是三单，应填三单式faces。故填faces。
60．句意：它会迅速游走。根据“its enemies (敌人) can’t find it. ”可知，敌人找不到它，这种鱼会迅速游走，此处修饰动词用副词quickly。故填quickly。
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