2024年牛津译林版中考英语一轮复习七年级下册 Unit8 复习知识点及练习（含解析）

Unit8 中考复习
【welcome】
bring me something to eat带给我一些吃的东西
Something to eat 一些吃的东西 不定代词后加动词不定式（to do）作后置定语
bring sb sth = bring sth to sb 给某人带某物
like watching the goldfish swim around 喜欢看着金鱼游来游去
watch sb do sth 看到某人做某事（全过程/经常做）
watch sb doing sth看到某人正在做某人（正在做）
sleep on my knees睡在我的膝盖上
hold it in my hand把它握在我的手里
[hold] vt.握住，拿 过去式：held
vt. 容纳；举行；抑制；保持 hold on （等一下）不要挂电话
[mouse] n.老鼠 复数：mice n.鼠标 复数：mice/mouses
feed her carrots喂她胡萝卜
[feed]vt.喂养，喂 →过去式：fed feed sb (on) sth=feed sth to sb喂某人某物
teach sb. to do sth.教某人做某事
teach my parrot to speak教我的鹦鹉说话
【reading】
poems about pets关于宠物的诗歌
My dog is the cleverest animal of all.我的狗是最聪明的动物
形容词/副词的最高级前+the
run after a ball追赶球
run after... 追赶......, 跟在.....后面跑
with eyes open wide眼睛睁得大大地
[wide]adv.充分地 adj.宽广地，广阔的，广泛地 →widely adv.广泛地
do wonderful tricks耍精彩的把戏
build...out of...用.....建.....
build camps out of sticks用树枝搭建帐篷
build sb sth = build sth for sb为某人建造某物
build → building n.建筑物，大楼
never bark or bite从来不叫也不咬
[fight]vi/vt. 打仗（架），与.....打仗（架） 过去式：fought
fight with/against sb同某人争辩
take good care of .....= look after..... well 照顾好.......
till the end直到最后
[till]prep. 到...时，直到.....为止 =until not.....till/until...... 直到....才
[end] at the end of..... 在.....尽头 in the end 最后，终于
【trouble】n.麻烦
be in trouble 处于麻烦/陷于麻烦
make trouble惹麻烦
get into trouble 陷于困境 get out of trouble 摆脱困境
have trouble (in) doing sth 做某事有麻烦/困难
don't have to feed her much不必喂她许多
[touch]n.触摸 need a gentle touch需要温柔的抚摸
n.联系 keep in touch with sb. 和某人保持联系
vt.触摸，碰到，接触
rhyme with.... 和......押韵
look around for me到处找我
【Grammar】
be easy to look after很容易照顾
主语+be+形容词+to do =It is+形容词+to do
eg:Goldfish are easy to look after.=It is easy to look after goldfish.
get tired变得疲劳
[anywhere]adv.任何地方 在句子中作状语
somewhere 某处，在某处 nowhere 无处 everywhere 到处，各处
repeat my words重复我的话
come back home回家
all the time一直,总是
feed him something else喂给他一些别的东西
She's nice to everyone.她对每个人都很好
be nice to sb =be good to sb.对某人好
I don't agree我不同意
[agree] agree to do sth 同意做某事
agree with sb 同意某人（的意见）/同意某人的话
agree with what you said同意你所说的
[keep] vt.养，饲养 keep a snake养蛇
保持 keep+adj. 保持..... eg:keep healthy
keep sb./sth+adj. 使某人/某物保持....... eg: keep the room clean
keep +sb/sth+介词短语 保持某人/某物处于......位置
Keep sth 保存/保留某物
【形容词】：我们用形容词来描述人或物
形容词的用法
用作定语 ，修饰名词，常置于所修饰名词之前。 形容词+名词
an interesting film 一部有趣的电影
a small room一间小房间
用作定语， 修饰不定代词one, no, any ，some和 every构成的复合词，如anything, something 时，通常放在所修饰的词后面。 不定代词（something等）+形容词
I have something interesting to tell you. 我有一些有趣的事情要告诉你。
There is nothing important in today's newspaper.今天的报纸上没有什么重要的消息。
.用作表语， 与系动词be, grow, get, become, feel, seem, look, keep, smell, taste, sound, turn 等连用。 系动词+形容词
The desk is clean.桌子是干净的。
The weather is getting warmer and warmer.天气变得越来越暖了。
The music sounds sweet.音乐听起来很甜美。
注意:
(1)某些以a开头的形容词，如: afraid, alone, asleep, alike等只能作表语，不能作定语。
I'm afraid I will fall asleep soon 恐怕不一会儿我就会入睡了。
(2)某些以-y结尾的词是形容词而不是副词。如: friendly，lively ，lovely ，lonely，likely ，brotherly 等。
12.【不定代词】：我们用不定代词指代某个不特定的人或物、
不定代词的构成
somebody 有人，某人 anybody 任何人 nobody 没有人 everybody 每人，人人
someone 有人，某人 anyone 任何人 no one 没有人 everyone 每人，人人
something 某事 anything 任何事 nothing 没有东西 everything 一切事情
适用范围
some- 肯定句 I saw someone/somebody/something in the house.
疑问句中表示请求，建议或反问 Would you like something to eat
any- 否定句 I didn’t see anyone/anybody/anything in the house.
疑问句 Did you see anyone/anybody/anything in the house
肯定句中表示 “任何人，任何事” I would do anything for this.
no- 肯定句（=not + any） There is no one/nobody/nothing in the house. = There isn’t (is not) no one/nobody/nothing in the house.
使用方法
看作单数，作主语时，谓语动词要用单数形式（be→is 行为动词→三单）
Someone is asking to see you.有人要见你。
Everything begins to grow in spring.春天，万物开始生长。
不定代词+adj./to do
Is there anything wrong 有什么问题吗
The boy wants to find something interesting to read in the book.男孩想从书中找点有趣的东西读读。
在反意疑问句中
表示人的不定代词在陈述句中作主语时，附加疑问句中的主语要用he或they;
表示物的不定代词在陈述句中作主语时，附加疑问句中的主语要用it。
Nobody knows his name， do they / does he 没有人知道他的名字,是吗
Everything is ready, isn't it 一切都准备好 了，是吗
在含有every的句中使用not, 只表示部分否定，意为“不全是”。
Not everyone likes sandwiches. = Some people like sandwiches.并不是每个人都喜欢吃三明治。
no one, none, nothing 可以用来分别回答who, how many, what的问句。
一Who is at home 谁在家 一No one.没有人。
一How many people are there in the office 有多少人在办公室 一None. 一个人也没有。
一What's in the fridge 冰箱里有什么 一Nothing. 什么也没有。
none可指人，也可指物，作主语时，谓语动词可用单数，也可用复数;
no one-般用来指人,后面般不接of引导的介词短语。
None of them knows the answer. 他们中没有一个人知道答案。
I wanted some ropes but there was none in my house. 我需要几根绳子,但家里一根都没有。
一Did anyone come to see me 有人来看我了吗 一No one. 一个人也没有。
any one可指人，也可指物;
anyone=anybody只可指人，不能指物, 也不可以与of引导的介词短语连用。
anyone作主语时，谓语动词用单数形式。
If anyone comes, please ask him to wait.如果有人来,请叫他等一下。
I don't like any one of them.他们中任何一个我都不喜欢。
everyone 意为“(一群中的)每个”,与of短语连用时，必须分开写。
He wishes every one of the students could have the chance.他希望学生中的每一个都有机会。
【Integrated skills】
pick up goldfish with your hands用你的手拿起金鱼
in the sun在太阳底下
in the moon在月光下 in the light 在灯光下 in the rain在雨中
They can grow up to be 20 centimetres long and weigh up to 400 grams.
他们能长到20cm长，重达400g
①grow up成长，长大成人
grow up into..... 长大成为.....
②[weigh] vt.重,有....重 weigh+重量 重....
n.weight lose weight减肥
③up to 多达，达到 表示“达到.....数量（程度等）”
weigh up to 400 grams重达四百克
grow up to be 20 centimeters long长到20厘米长
feed them once a day一天喂他们一次
a talk on/ about goldfish一个关于金鱼的讲座
[talk]n.讲座，演讲 give a talk on/about......做一个有关....的讲座
n.交谈，谈话 have a talk with sb.和某人交谈
Vi. 交谈，谈话 talk about/of sth 谈论某事 talk with/to sb 和某人交谈
talk with sb about sth和某人谈论某事
how big多大
7. make noise吵闹 ,发出噪声
8. walk your dog in the park在公园里遛狗
9. [brush] n.刷子 复数：brushes
vt.刷，擦 brush its fur刷它的毛
【study skills】
1.It connects computer networks all over the world.它连接着全世界的电脑网络。
[connect] 动词， “连接; 接通” connect A with/to B 将A和B连接起来
be connected with .....关/有联系。
2. [easily] adv. 容易地，不费力地
easy形容词 “容易的”。
Kitty wants to find information about keeping an e-pet.基蒂想查找关于养电子宠物的信息
[about] 介词，“关于”
介词，“大约;在-.... 附近; ....周围”
副词，“大约，几乎;在周围;到处”。
e-mail(email) 电子邮件; e-dog 电子狗; e-friend 网友; e-book 电子书; e-dictionary 电子词典。
【task】
sleep in the basket睡在篮子里
in the basket在篮子里
a basket of......一篮子.....
play with a ball玩球
play with sth玩某物
play with sb 和某人玩
like warm milk喜欢温牛奶
be noisy吵闹
[ noisy ] adj. 吵闹的，嘈杂的
noise名词“噪声”。
noisily副词“吵闹地”
What does it look like 它长什么样
“What do/does...look like ” 用来询问人或物的外貌特征
“What is/are..like " 用来询问人或物的性格特征。
“What do/does.like " 用来询问....喜欢什么 ”
作文：介绍宠物
开篇点题：种类，名字，年龄等
详细描述：外貌，习性，特征
表达感受：I like playing with him and.....I will always love him and take good care of him.
Unit 8 Pets单元测试
一、单项填空（共15小题;每小题1分,满分15分）
请认真阅读下列各题,从题中所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。1．I didn’t go to bed ________ 11 o’clock yesterday.
A．until B．after C．at D．on
2．We don't need _______ fast. The train won't leave until 11o'clock.
A．walk B．to walk C．walking D．walked
3．—Can you tell me how to ________ a pet dog
—It’s not easy. Here is a book, and it will tell you many does and don’ts.
A．look at B．look like C．look after D．look into
4．—Why are the parents _________ their baby
—Because he is ill.
A．worry about B．worrying for
C．worried about D．worried for
5．My pet always makes a lot of _______, such as eating the neighbor’s fish and breaking glasses.
A．trouble B．troubles
C．sound D．sounds
6．My dog likes________, but it never _______ me.
A．to bark; bark at B．barking; bark
C．barking; barks at D．barking at; barks
7．My grandpa has poor eyesight. He has some trouble _________ books without glasses.
A．read B．reading C．to read D．to reading
8．-Are they watching the girls______ now？
-Yes. And they watch them________ every day.
A．dance；to dance B．dancing；dance C．to dance；dancing D．dancing；to dance
9．It’s important ________ give the fish _________ food.
A．not to; much too B．not to; too much
C．to not; much too D．to not; too much
10．Do you have_______ to say for yourself
A．everything else B．else something C．anything else D．else anything
11．Summer camping is a great experience for students. It is good to help them ________.
A．wake up B．get up C．hurry up D．grow up
12．You ________ come late tomorrow. The plane waits for nobody.
A．can’t B．needn’t C．must D．need
13．Could you _________ please I’m very thirsty.
A．take me some water B．take me any water
C．bring me some water D．bring me any water
14．It’s necessary to keep our classroom _________ every day.
A．cleaned B．clean C．cleaning D．to clean
15．The twin brothers often fight _________ each other _________ snacks.
A．for; for B．with; with C．with; for D．for; with
二、完形填空（共10小题；毎小题1分,满分10分）
请认真阅读下面短文,从短文后各题所给的A、B、C、D四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
Many people keep small fish as pets. They ___16___ them in a tank of water. The tank is made of clear glass. People can look ___17___ it-they can see inside the tank and watch the fish.
In the tank, many people put small ___18___ that are good for fish. They give oxygen (氧气) to the water. Plants help in other ways too. Fish can bite on the plants. They hide among (在……之中) the plants, sleep and ___19___ eggs there. The plants need light. Most fish need light too. The tank may be put near a window. It will get light there. Another place might be better, though. A window may let ___20___ air in. The water in the tank may get too cold. The fish may die because cold water can kill them. ___21___ can hot water. The temperature must be just right.
The fish must be kept in water ___22___. Some fish can jump high. They may jump out of the tank. The tank should be covered. This keeps the fish from jumping out. The fish need food and they should be fed every day. Giving them ___23___ food is bad. The extra (额外的) food will fall to the bottom and make the water ___24___. However, the fish should get just enough food. They can ____25____ the food in 10 minutes.
16．A．keep B．buy C．find D．want
17．A．at B．for C．through D．out of
18．A．fish B．Plants C．oxygen D．eggs
19．A．have B．lie C．leave D．lay
20．A．hot B．cold C．warm D．cool
21．A．So B．Never C．If D．But
22．A．sometime B．sometimes C．all the time D．some time
23．A．so many B．too many C．much too D．too much
24．A．dirty B．clean C．dark D．clear
25．A．choose B．finish C．turn D．feed
三、阅读理解
A
All animals sleep. Some sleep a little. Some sleep a lot. And some have special ways to get sleep.
Koalas live in Australia. They eat only eucalyptus (桉树) leaves. These leaves don’t give much energy. To save their strength, koalas spend most of the time sleeping. They may sleep 18 to 22 hours a day.
Lions spend much time dreaming. Scientists don’t know why. When not looking for food, a lion usually plays and sleeps. Even asleep on the ground, a lion can feel safe. In fact, who is going to trouble a sleeping lion
Giraffes sleep only a few hours a day. They mostly take short sleeps while standing up. But they do need to lie down for half an hour of deep sleep. It can take a minute for a giraffe to get back up on its long legs again.
Like giraffes, horses take sleeps while standing up, so they’re ready to run away. Horses do need to lie down for about 20 minutes to get some deep sleep. When horses lie down, one horse stays awake to keep watch.
Why do koalas spend most time sleeping
A．To save their strength. B．To make energy. C．To live longer. D．To rest.
27．What animals take sleeps while standing up
A．Koalas and giraffes. B．Giraffes and horses. C．Lions and horses. D．Giraffes.
28．What is the passage mainly about
A．Animals’ sleeping. B．Food for animals. C．Houses for animals. D．Animals.
B
Whales are the largest animals on this earth. Whales can be bigger than elephants. Whales can be bigger than some houses. Even a baby whale can be huge. A baby whale can weigh as much as a ton when it is born. That’s a very huge baby! How can whales be so big when they are born Why are they able to grow so much larger than any other animal The answer is really easy. Whales can be big because they live in the water. The water helps to hold them up. Land animals can’t be as big as the biggest whales. If a land animal got too big, its legs wouldn’t be able to hold it. If a bird got too big, it wouldn’t be able to fly. No animal can be too big as a whale. A whale can still float（漂浮）though it is very big.
29．Why can whales be so large
A．Because they eat many fishes. B．Because they don’t live on the land.
C．Because they can swim. D．Because they live in the water.
30．Which of the following is TRUE
A．Whales are a kind of fish. B．Whales are the biggest animals.
C．A baby whale is very small. D．Whales are as big as elephants.
31．According to the article, if a land animal gets too big it ________.
A．won’t eat B．won’t fly C．can run very fast D．may not stand
C
Have you ever watched your dog bury（埋）his favorite bone but dig it up only a day or later There is actually a reason behind this-it’s simply in their nature. For thousands of years, dogs have buried their bones. When dogs lived in the wild, sometimes there was not enough food, it was hard for them to find food. If they were able to find meat and bones, dogs had to protect them. In order to keep other dogs and animals from finding their meat, dogs would bury it in the ground. Even though most dogs have lots of food to eat today, their instincts（本能）still tell them to bury their bones. Some dogs even hide（藏）more than one bone at a time.
A dog cannot bury a bone just anywhere. He must first find the perfect place. Often it’s near a tree or a large rock. Once the dog finds the perfect place, he uses his front feet to dig the hole, drops the bone and covers up the hole to protect it. Dogs don’t always remember where a bone is buried, but they have a wonderful sense of smell. A dog can smell a bone even if it has been buried for years. Most of the time, dogs find bones they have buried by themselves, but they can also find bones buried by other dogs.
32．What does the underlined word “this” in Paragraph 1 refer to
A．Why dogs dig their bones. B．Why dogs bury their bones.
C．When dogs bury their bones. D．Where dogs bury their bones.
33．Where do dogs would like to bury the bones
A．Near a door. B．Near a rock. C．Near a river. D．Near a house.
34．What can we learn from the passage
A．Dogs started burying bones 100 years ago. B．Dogs do not bury bones to protect them now.
C．Dogs smell always work when finding bones. D．Dogs only hide one bone each time.
35．What’s the best title for the passage
A．Dogs’ Life in the Wild B．Dogs’ Wonderful Sense of Smell
C．What are Dogs Instincts D．Why Do Dogs Bury Their Bones
参考答案：
1．A
【详解】句意：昨天，我直到11点钟才上床睡觉。
考查固定搭配。until直到；after在……之后；at在；on在……之时。根据“I didn’t go to bed...11 o’clock yesterday.”可知，此处是指直到11点才睡觉。固定短语not...until表示“直到……才”。故选A。
2．B
【详解】句意：我们不需要走的太快。火车11点出发。本题考查动词不定式。本题考查need的用法。need 作为情态动词，need do sth；作为实义动词，need to do表示句子主语需要去做某事need doing表示主语需要被做=need to be done，结合句意，故选B。
3．C
【详解】句意：——你能告诉我怎样照顾宠物狗吗？——这并不容易。这里有一本书，它会告诉你许多该做和不该做的事。
考查动词短语。look at看着；look like看起来像；look after照顾；look into调查。根据“Here is a book, and it will tell you many does and don’ts.”可知，提问者想知道如何照顾一只宠物狗。故选C。
4．C
【详解】句意：——父母为什么担心他们的孩子？——因为他生病了。
考查形容词短语。worry about和be worried about都表示“担心”，句中有are，故此空应填形容词短语be worried about，故选C。
5．A
【详解】句意：我的宠物总是制造很多麻烦，比如吃邻居的鱼和打破玻璃。
考查名词辨析。trouble麻烦，不可数名词；troubles烦恼；sound声音；sounds是sound的复数，根据“such as eating the neighbor’s fish and breaking glasses.”可知，空处指制造麻烦，故选A。
6．C
【详解】句意：我的狗喜欢叫，但它从不对我叫。
考查非谓语动词，动词时态以及动词短语。like doing sth/to do sth“喜欢做某事”；bark吠叫；bark at朝某人吠叫。第一空填to bark或barking，第二空后接宾语me，应填短语bark at，句子是一般现在时，主语it是第三人称单数形式，动词用三单，故选C。
7．B
【详解】句意：我爷爷视力不好，他不戴眼镜看书有点困难。根据空前的trouble可知用到短语have trouble（in）doing sth, 做某事有困难， 故选B。
【点睛】have trouble (in) doing表示在做某事上有困难，还可以表达为have difficulty (in) doing此处in可以上略，类似结构的短语还有have fun (in) doing做某事玩得很高兴，succeed (in) doing在做某事上很成功等。
8．B
【详解】句意：——他们现在在看女孩跳舞吗？——是的。他们每天都看他们跳舞。watch sb. doing sth. 观看某人正在做某事，强调动作正在进行；watch sb. do sth. 观看某人做某事，表示经常性的动作或强调动作已经结束。由now可知，表示动作正在进行；根据every day判断，表示经常性的动作，用watch sb. do sth.来表达，故答案为B。
9．B
【详解】句意：重要的是不要给鱼太多的食物。
考查非谓语动词和短语辨析。much too太，副词；too much太多，修饰不可数名词。It’s+形容词+to do sth“做某事是怎样的”，动词不定式作主语，结合选项可知，第一空用不定式的否定形式（not to do），排除C、D；第二空后是不可数名词food，所以用too much。故选B。
10．C
【详解】句意：你还有什么其它的事情要说吗？something意思是“某事”，一般用于肯定句；everything意思是“每件事情”，一般用在肯定句中；anything意思是“任何事”，一般用于否定句或疑问句中；这几个词都是不定代词，else意思是“别的、其它的”，修饰不定代词时，位置后置，所以排除B、D选项；本句为一般疑问句，所以排除A选项，故答案选C。
11．D
【详解】句意：对学生们来说夏令营是一次非常好的经历。这对帮助他们成长有好处。
考查动词短语。wake up醒来；get up起床；hurry up快点；grow up长大，成长。分析句子可知，参加夏令营可以帮助学生们成长。故选D。
12．A
【详解】句意：你明天不能迟到。飞机不等待任何人。
考查情态动词辨析。can’t不能；needn’t不必；must一定；need需要。根据“The plane waits for nobody”可知，飞机不等人，所以不能迟到，故选A。
13．C
【详解】句意：请给我拿点水来好吗？我很渴。
考查特殊疑问句。take拿走；bring拿来，带来。根据“I’m very thirsty”可知，此处是指给我带点水，排除AB选项；又因此句是表示请求某人做某事，并且得到对方的肯定回答，所以用some而不是any。故选C。
14．B
【详解】句意：每天保持教室干净是必要的。
考查形容词作宾补。keep sth+形容词，表示“使某物……”，形容词作宾补，clean既可作为动词又可作为形容词，故选B。
15．C
【详解】句意：这对双胞胎兄弟经常为了吃零食而打架。
考查动词短语和介词辨析。for为了；with和；fight with sb.和某人打架；fight for为了……打架。空一表示“互相打架”，固定短语fight with each other“互相打架”，排除AD选项；空二表示“为了零食”，用介词for。故选C。
16．A 17．C 18．B 19．D 20．B 21．A 22．C 23．D 24．A 25．B
【导语】本文主要讲述了怎样养宠物鱼。
16．句意：他们把它们养在一个水缸里。
keep饲养；buy买；find找到；want想要。根据空后的“in a tank of water”可知，人们把鱼养在鱼缸里，故选A。
17．句意：人们可以透过它看——他们可以看到鱼缸里的鱼。
at在；for为了；through通过；out of从……里面。根据“The tank is made of clear glass”可知，人们可以透过玻璃看到鱼缸内部，through表示从某物中间穿过，故选C。
18．句意：人们会在鱼缸里放些对鱼有好处的植物。
fish鱼；plants植物；oxygen氧气；eggs鸡蛋。根据“Plants help in other ways too”和“They hide among the plants”可知，鱼缸里放着对鱼有好处的植物，故选B。
19．句意：它们躲在植物中间睡觉，并且在那儿产卵。
have有；lie躺着；leave离开；lay产卵。根据空后的“eggs there”可知，应该是产卵，故选D。
20．句意：窗户会使冷空气进来。
hot热的；cold冷的；warm温暖的；cool凉快的。根据“The water in the tank may get too cold”可知，窗户会使冷空气进来，故选B。
21．句意：太冷的水会使金鱼死亡，太热的水也是如此。
So所以；Never从不；If如果；But但是。根据“The temperature must be just right”并结合上文内容可以推知，太热的水也会让金鱼死亡，“so+情态动词/助动词/be动词+主语”表示“……也是”，故选A。
22．句意：鱼必须一直待在水里。
sometime某时；sometimes有时；all the time一直；some time一些时间。根据常识可知，鱼要一直待在水里，故选C。
23．句意：给它们太多的食物是不好的。
so many如此多，修饰可数名词复数；too many太多，修饰可数名词复数；much too太，修饰形容词或副词；too much太多，修饰不可数名词。根据空后的“food”是不可数名词可知，空缺处用too much修饰，故选D。
24．句意：多余的食物会沉到底部，使水变脏。
dirty脏的；clean干净的；dark黑暗的；clear清楚的。根据“The extra (额外的) food will fall to the bottom”可知，食物沉底会让水变脏，故选A。
25．句意：它们在10分钟内就能吃完食物。
choose选择；finish用完，吃完；turn转弯；feed喂养。根据空后的“the food in 10 minutes”可知，鱼在10分钟内就能吃完食物，故选B。
26．A 27．B 28．A
【导语】本文主要介绍了树袋熊、狮子、长颈鹿和马特殊的睡觉方式。
26．细节理解题。根据“To save their strength, koalas spend most of the time sleeping. ”可知，为了保存体力，考拉大部分时间都在睡觉，故选A。
27．细节理解题。根据“Giraffes sleep only a few hours a day. They mostly take short sleeps while standing up.”和“Like giraffes, horses take sleeps while standing up, ”可知，马和长颈鹿是站着睡觉的，故选B。
28．主旨大意题。根据“And some have special ways to get sleep.”及全文可知，本文主要介绍了树袋熊、狮子、长颈鹿和马特殊的睡觉方式。故选A。
29．D 30．B 31．D
【导语】本文介绍了鲸鱼的相关知识。
29．细节理解题。根据“Whales can be big because they live in the water.”可知鲸鱼可以长那么大，是因为它们生活在水中。故选D。
30．细节理解题。根据“Whales are the largest animals on this earth”可知鲸鱼是地球上最大的动物。故选B。
31．细节理解题。根据“If a land animal got too big, its legs wouldn’t be able to hold it.”可知如果一只陆地动物变得太大了，它的腿就无法支撑住它。故选D。
32．B 33．B 34．C 35．D
【导语】本文是一篇说明文，介绍了狗埋骨头的这种行为产生的原因，以及狗是如何选择埋骨头的地点以及如何找到埋藏骨头的位置。
32．词义猜测题。根据前一句“Have you ever watched your dog bury（埋）his favorite bone but dig it up only a day or later ”和“a reason”可知，this指的是为什么狗会埋骨头，故选B。
33．细节理解题。根据“Often it’s near a tree or a large rock.”可知，靠近石头是完美的地方，故选B。
34．推理判断题。根据“Dogs don’t always remember where a bone is buried, but they have a wonderful sense of smell. A dog can smell a bone even if it has been buried for years.”可知，狗在找骨头的时候总能闻到气味。故选C。
35．最佳标题题。本文主要介绍了狗埋骨头的这种行为，解释了这种行为的成因，选项D“狗为什么要埋骨头？”符合文章大意，故选D。