Unit 7 What's the highest mountain in the world?精品课件(共56张PPT)

(共56张PPT)
八 年 级 下 册 Unit 7
单 元 预 复 习 精 品 课 件
内 容 提 要
1.词 组 记 忆
2.考 点 过 关
3.语 法 突 破
4.写 作 训 练
1.词 组 记 忆
1. （可以）随便（做某事) ______________________ 2. 就我所知____________________________________ 3. 吸入，吞入_________________________________ 4.面对（问题，困难） _________________________
5. 即使，虽然__________________________________ 6. 出生时___________________________ 7. 到达（某数量，程度），不多于________________ 8. 走路时撞到__________________________________ 9. 绊倒_________________________________________ 10.大约 ________________________________________
.feel free
.as far as I know
3.take in
.in the face of
.even though
at birth
up to
walk into
fall over
or so
2.考 点 过 关
考点1. Qomolangma is higher than any other mountain in the world. 珠穆朗玛峰比世界上其他任何一座山都高。
【解析】higher than any other mountain比其他任何山都高，any指任何一个，后接单数名词。这种比较级形式可以替换为最高级形式，即：形容词比较级+than any other+单数名词=最高级+单数名词。原句相当于Qomolangma is the highest mountain in the world.。
e.g. Tom runs faster than any other student in his class.
汤姆比他班上的任何人都跑得快。
This book is more difficult than any other book here.=________________________________________
This book is the most difficult book here.
【拓展】表示最高级的结构还有：形容词比较级+than the other + 复数名词。
【即学即练】
—Everyone knows Canada is the second largest country in the world.—That is, it is larger than ____________ country in Asia.A. any B. any other C. other D. another
Asia is bigger than the other continents on the earth.
亚洲是地球上最大的洲。
考点2. China has the biggest population in the world. It’s a lot bigger than the population of the US.
中国是世界上人口最多的国家。它比美国人口要多得多。
【解析1】population作主语，表达一个整体概念时，谓语动词用单数，当其前有分数或百分数修饰时，谓语动词可用单数或复数。
The population of Nigeria is more than 100 million. (强调整体性) 尼日利亚的人口数量为1亿多。
（1）问人口数量的句型是：What’s the population of...
What’s the population of the world now 现在世界人口是多少？
（2）形容人口多少用big，large或small。
The city has a big/large/small population. 这个城市人口多/少。
【即学即练】
1.The population of the world _______ still _______ now. A. will；grow B. has；grown C. is；growing D. is；grown
2.The populationg of India is _____ than that of China.
A.bigger B.smaller C.more D.less
C
B
【解析2】a lot bigger大多了,bigger是比较级,前面用a lot修饰。
a lot, a little, much, a bit, still, even, far等可以用来修饰形容词
或副词的比较级,表示程度,起强调作用。
My room is a little smaller than yours.我的房间比你的稍小一点儿。
【即学即练】
— How did you find your trip to Water Park in the summer of
2016 — I enjoyed it. It was ________ than I expected. A. even much interesting B. far more interesting C. so far interesting D. far from interesting
【答案】B 【解析】考查形容词。根据后面的“than I expected”可知，
此处运用比较级more interesting，而far可以修饰比较级。
考点3. Did you know that China is one of the oldest countries in the world 你知道中国是世界上最古老的国家之一吗？
【解析1】该句含有由that引导的宾语从句，从句表示的是客观事实或真理，即使主句是过去时，从句也要用一般现在时。
He told me that the sun rises in the east.
他告诉我太阳从东方升起。(客观事实)
【即学即练】
My teacher told me that light ____________ at high speed.
A. traveled B. would travel C. travels
【解析2】本句中的one of意为＂……中的一个＂或＂……之一＂，后面接复数名词，当名词前有形容词修饰且有比较范围时，形容词应用其最高级形式。
Song Jie is one of the tallest students in our class.
宋杰是我们班最高的学生之一。
【注意】one of ... 作主语时，谓语动词要用单数形式。
One of the girls is my sister. 这些女孩中有一个是我妹妹。
【即学即练】
As we know, the Yangtze River is one of _____ rivers in the world.A. long　 B. longer C. Longest D. the longest
【答案】D【解析】本题用寻找题眼法。由句中＂one of＂可知为＂one of＋the＋形容词最高级＋可数名词复数＂结构。
考点4. Feel free to ask me anything on today’s Great Wall tour.
关于今天的长城之旅，请随意向我提问。
feel free是英语口语中一个常用表达。feel free to do sth.表示＂无拘束做某事，按照自己的意愿去做某事＂。
If you have any questions, please feel free to ask me.
如果有任何问题，请随意提问。
【即学即练】
—Mary, can I use your dictionary —Yes, __________.A. enjoy yourself B. feel free C.no way
B
考点5. The main reason was to protect their part of the country.
主要原因是保护他们那部分的国土。
protect v. 保护；防护。常用短语：
protect...from/against...保护……免受/遭……
People build houses to protect themselves against bad weather.
人们建造房屋来抵御坏天气。
【即学即练】
Some steps have been taken to protect the forest . A. from being destroyed B. from destroying C.to destroy D.to be destroyed
A
考点6. As far as I know, there are no other man-made objects as big as this. 据我所知，再没有其他像它这样大的人造物体了。
【解析1】as far as I know是一个固定的表达方式，还可以说so far as I know，意思是＂据我所知＂。
As far as I know, he will be away for three months.
据我所知，他将离开三个月。
as far as还可表示＂像……那样远；远到……＂，后跟名词或从句，强调至某一指明地点的距离。在否定句中，也可用so far as。
We went as far as Lion Rock Tunnel.
我们一直走到狮子山隧道公路那儿。
【即学即练】
—We will certainly enter a good high school ____ we work hard.—Yes. Our dream will come true by working hard. A. as soon as　 B. as long asC. as far as D. even if
【答案】B
【解析2】man-made人造的，为形容词性的合成词。类似的有：good-looking相貌好看的；hard-working勤劳的；well-known著名的；fast-food专门提供快餐服务的。
考点7. Even more serious difficulties include freezing weather conditions and heavy storms.
更加严峻你的困难包括极冷的天气状况和巨大的风暴。
【解析1】include为及物动词，其后可接名词或动名词，指在一个整体中包括了其中一部分内容或项目等，强调包含部分。
The price includes both the house and the furniture.
价钱包括房子和家具(的价格)。(接名词)
【即学即练】
He took an active part in all kinds of activities, i ____________ tennis, swimming, running and so on.
【答案】including
【解析2】condition名词，意为＂条件；状况＂，既可作可数名词，也可作不可数名词。
Everything is in good condition. 一切状况良好。
He is overweight and out of condition. 他体重超重且健康状况不佳。
【即学即练】
—The _______ of Xinjiang is peaceful, though many terrorists
keep making trouble.—I believe those terrorists will fail in the end. A. condition B. situation C. environment D. performance
【答案】B
考点8. It is also very hard to take in air as you get near the top.
当你接近山顶的时候，你还会感到呼吸非常困难。
【解析1】“It is + adj.+ to do sth.”句型中It作形式主语放在句首,而把真正的主语放在句尾。常用于此句型的形容词有important, difficult, dangerous, necessary, useful, possible等,用来对to do sth.进行说明。此句型可以转换成“To do sth.is+adj.”。
It is important to study English well.学好英语很重要。
It’s very difficult to climb Qomolangma.攀登珠穆朗玛峰很难。
【即学即练】
____________ that she has been married for a year. But no one knows who her husband is.A. It is said B. It says C. It believed D. It believes
【答案】A【解析】句意：据说她已经结婚一年了。但是没有一个人知道她丈夫是谁。固定句型：It is said that据说，因为it为形式主语，真正主语为that从句，it和say为被动关系，故答案为：A。
【解析2】as作连词，相当于when。as引导时间状语从句，作＂当……的时候＂解，有＂随着……＂之意，与while意义相近，强调两个动作同时发生，或某事一发生，另一事立即发生。
He shouted aloud as he ran along.
他一边往前跑，一边高声地呼喊。
I was startled as he opened the door. 他一开门，我吓了一跳。
【即学即练】
Li Lei isn’t ____________ Liu Ming.
A. tall as B. as taller as C. as tall as D. as the taller as
考点9. ... while the first woman to succeed was Junko Tabei from Japan in 1975. ……而来自日本的田部井淳子在1975年成为第一个成功的女登山者。
【解析1】succeed是不及物动词，意为＂实现目标；成功＂，不能用于被动语态。常用短语：succeed in doing sth. 成功做成某事；succeed in sth.在某方面获得成功。
—Could you tell me how to succeed in making a speech in front of people
你能告诉我怎样在人们面前成功发表演讲吗？
【拓展】
(1)success n. 成功
The party was a big success. 晚会非常成功。
(2)successful adj. 成功的
I was successful in passing the math exam.
我成功地过了这次数学测验。
(3)successfully adv. 成功地
—What do you think of the speech given by Chairman Xi Jinping in the UN
—It’s very exciting. His speech ____________ getting foreign friends’ appreciations.
A. succeeded in　B. looked down C. gave up D. came about
【答案】A
考点10.The spirit of these climbers shows us that we should never give up trying to achieve our dreams. 这些登山者的精神向我们表明：我们绝不应该放弃实现我们梦想的尝试。
【解析1】give up 意为＂放弃＂，后面可以接名词、代词或动名词作宾语。如果宾语是名词，那么名词可以放在 give 和 up 之间，也可以放在 up 之后；如果宾语是代词，那么代词只能放在 give 和 up 之间。
My uncle wants to give up drinking wine. 我叔叔想戒酒。
【即学即练】
Don’t ____________ your hope and try again.
A. give up B. look up C. wake up D. make up
A
【解析2】achieve及物动词，意为＂达到；完成；成功＂，其宾语可以是＂实现＂的目标、目的等，也可以是＂取得＂的胜利、成功、名誉、地位等。
She achieved no success. 她没有获得成功。
注意：
achieve表示＂实现＂时，与realize，come true同义，但come true为不及物动词短语，而另外两个均为及物动词。
He achieved/realized his dream. 他的梦想实现了。
At last, his dream came true. 最后，他实现了他的梦想。
【即学即练】
He will never ____________ anything if he doesn’t work hard.A. hope B. wish C. achieve D. succeed
【答案】C
考点11. Why do so many people try to climb this mountain even though it is dangerous 为什么即使它很危险还有那么多的人尽力攀登这座山？
even though用作从属连词，意为＂即使；尽管＂，相当于even if，引导让步状语从句，不与并列连词but连用。even if的从句中含有强烈的假定性，even though则多以从句之内容为前提。
Even if you don’t succeed, they will stand by you.
即使你们不成功，他们也会支持你们。
【即学即练】
_____ Frank left school at 16, he still became a successful writer.
A. Ever since　　　 B. In fact C. After all D. Even though
D
考点12. This elephant weighs many times more than this panda.
这只大象比这只大熊猫重很多倍。
【解析1】weigh既可作及物动词，表＂称重＂，也可作连系动词，表＂有……重；重＂。
I weighed the box. It weighs 20 kg. 我称了这个盒子，它重20公斤。
【拓展】　
weigh的名词形式为weight。常用短语：in weight在体重方面。
The boy weighs 20 kg.＝The boy is 20 kg in weight.
这个男孩重20公斤。
【即学即练】
He ____________（weight）only 70 kilos now after taking a balanced diet.
weighs
【解析2】time在此意为＂倍数，次数＂，表示三倍或三倍以上时使用。表示 ＂A 比B长（宽、高、大、重等）N倍＂时，其结构为＂A＋be＋基数词（N＋1）＋times＋形容词比较级＋than＋B ＂。
This hall is five times bigger than our classroom.
这个大厅比我们的教室大四倍。
【即学即练】
—I hear you’ve bought a new house.—Yes, it costs too much. Anyway, it’s ___________ my old one. A. twice as big as B. as twice big as C. bigger two times than D. two times bigger as
A
考点13.At birth, a baby panda is about 0.1 to 0.2 kilos. 出生时，一只大熊猫宝宝大约0.1到0.2千克重。
【解析】birth n. 出生;诞生。常见搭配：
【辨析】　born/birth
(1) born是bear的过去分词,意为“出生”,常用结构:sb.was/were born。
I was born in summer in 1988. 我出生于1988年的夏天。
(2) birth是名词,意为“出生,诞生,分娩”,反义词是death,意为“死,死亡”。
She gave birth to a girl last night. 她昨晚生了一个女孩。
考点14.Panda keepers are preparing milk for the baby pandas’ breakfast. 大熊猫饲养员正在准备大熊猫宝宝的早餐牛奶。
【解析】prepare sth. for sb./sth. 给……准备……。
She prepared a nice breakfast for us. 她给我们准备了可口的早餐。
prepare for＂为……做准备＂，for后面的宾语是准备的对象。
The students are busy preparing for the final exam.
学生们正在忙着准备期末考试
【即学即练】
—Can you go to the beach with me —I’d love to. But I have to _______________ tomorrow’s exam.A. look for B. ask for C. prepare for
A
考点15.they find that most of the babies are already awake and hungry.他们发现大多数的大熊猫宝宝已经醒来并且饿了。
【解析】awake此处用作形容词，意为“醒着的”，它在句中常作表语。反义词是asleep。
Is he awake or asleep？他是醒着还是睡着了？
【辨析】awake与wake
awake形容词，意为“醒着”，常用作表语wake动词，意为“弄醒；醒”，常与副词up连用
It’s eleven at night. He is still awake. 夜里十一点了，他还没有睡。
Please wake me up at six in the morning. 请早上六点叫醒我。
【即学即练】
After working all night， Kate couldn’t stay____________the next morning.（wake）
【答案】awake
考点16.Some kinds of whales are in danger.
一些种类的鲸处于危险之中。
【解析】in (great) danger处于(极度)危险之中，是主语本身处于危险之中，处于危险状况/危险处境，其反义词组为out of danger＂脱离危险＂。
The old man is in danger. 这位老人处于危险中。
danger-----_____________(形容词)
dangerous
3.语 法 突 破
形容词、副词的比较等级
1. 形容词和副词的比较级与最高级的变化规则
(1)规则变化
情况 规则 例词
一般情况 直接加-es / -est talltaller→tallest
以不发音的字母e结尾的词 加-r / -st nice→nicer→nicest
以＂辅音字母+y＂结尾的词 变y为i，再加-er / -est dry→drier→driestheavy→heavier→heaviest
以一个辅音字母结尾的词 先双写辅音字母，再加-er / -est thin→thinner→thinnest
多音节和部分双音节单词 在词前加more / most delicious→more delicious→most delicious
（2）不规则变化
原级 比较级 最高级
good, well
bad, ill
many, much
little
far
better
best
worse
worst
more
most
less
least
farther/further
farthest/furthest
2. 形容词/副词原级的用法
（1）用于＂as...as...＂结构中，否定形式为not as/so...as...。
This picture is not so good as that one. 这幅画不如那幅好。
【即学即练】
Li Hua’s shoes are as ________ as Zhang Hui’s.A. cheap B. cheaper C. the cheapest
（2）表示＂A是B的……倍＂时，用A＋谓语动词＋倍数＋as＋原级＋as B。
Our school is twice as large as theirs.
我们学校是他们学校的两倍大。
（3）修饰形容词原级的词：very， too， so，enough等。
The girl is so beautiful. 这个女孩是如此的漂亮。
3. 形容词/副词比较级的用法
（1）A＋谓语动词＋比较级＋than B... A比B……
My bike is more beautiful than hers. 我的自行车比她的好看。
【即学即练】
Peter is 15 years old. He is _________ than his father. A. tall　　　B. taller C. tallest D. the tallest
【答案】B【解析】本题用寻找题眼法。由句中的than可知本空应用形容词的比较级形式。
（2）Which/Who＋谓语动词＋比较级，A or B
Who runs faster, Jim or Tom 谁跑得更快，吉姆还是汤姆？
【即学即练】
—Which season do you like__________ in Panzhihua, the dry season or rainy season —The rainy season. A. well　 B. better　 C. best D. the best
【答案】B
（3）表示＂越来越……＂时用比较级的重叠结构，即＂比较级＋and＋比较级＂，多音节词和部分双音节词用＂more and more＋原级＂。
It’s becoming colder and colder. 天气变得越来越冷了。
The problem is becoming more and more serious.
问题变得越来越严重了。
【即学即练】
—Roy never likes junk food.—Neither do I. That’s probably why I’m becoming _______now.A. healthy and weak B. healthier and healthierC. weaker and weaker D. more and more healthily
【答案】B
（4）表示＂越……就越……＂时用＂the＋比较级，the＋比较级＂。
The more careful you are, the fewer mistakes you will make. 你越细心，犯的错就会越少。
【即学即练】
The earlier kids learn to be independent, the __________ it is for their future. A. good　 B. well　 C. better　　 D. best
【答案】C【解析】本题用固定句式法。句意：孩子们越早学会独立，对他们的未来就越好。固定句式the＋比较级...， the＋比较级...表示＂越……，就越……＂。
（5）表示＂两者之间比较……的一个＂时常用＂the＋比较级＋of the two＂。
He is the thinner of the two. 他是两个中较瘦的那一个。
【即学即练】
Of the two shirts, I’d like to choose the __________ one to save some money for a cap. A. cheapest　　　 　 B. cheaperC. more expensive D. most expensive
【答案】B【解析】根据句中＂Of the two shirts＂可知本句是两者之间的比较，应用比较级。句意＂两件衬衫中，我想要选较便宜的那件，省下来的钱买一顶帽子。＂
（6）修饰比较级的词和短语有a little，a bit，a lot，much，far，even等。
You are a little thinner than Jim. 你比吉姆瘦点儿。
【即学即练】
The box was _______ than I had expected. I was out of breath when I got home. A. more heavier　　　 B. much heavierC. little heavier D. very heavier
【答案】B
（1）三者或三者以上比较用最高级，形容词最高级前加the，副词可不加。句末常跟in/of短语表示范围。
4. 形容词/副词最高级用法
Tom is the cleverest of the three. 汤姆是他班里最聪明的。
He runs fastest in the class. 在这个班里他跑得最快。
【即学即练】
—Lily has two sisters, doesn’t she —Yes. She’s taller and older than her two sisters, but she’s not ______one of the three. A. the tallest　　　 B. youngest C. shortest D. the cleverest
D
（2）Which/Who＋谓语动词＋the＋形容词/副词最高级，A，B or C
Who is the tallest, Tom, Kate or Bill 谁是最高的，汤姆、凯特还是比尔？
【即学即练】
—Which city is _____ beautiful, Hangzhou, Beijing or Shanghai —Hangzhou, I think.A. the most B. the better C. more
【答案】A【解析】本题用语法判定法。由问句可知是在三个城市之间比较，知要用最高级形式。故选A。
（3）表示＂最……的……之一＂时用one of＋the＋形容词最高级＋复数名词。
Miss Xu is one of the most popular teachers in our school. 徐老师是我们学校最受欢迎的老师之一。
【即学即练】
This temple is one of _________________ buildings in the town. We must take action to protect it. A. old　　　　 B. older C. oldest D. the oldest
【答案】D
1.The bridge is about ____________ long. A.five hundred meter B.five hundred meters
C.five hundreds meters D.five hundred of meters2.They often drive to the countryside and ________ the fresh air. A.bring in B.take in C.get in D.turn in3.In our class,Jason is the _______ .He always makes us laugh. A.funny B.funnier C.funniest D.much funnier4.---I’m sorry to hear that Bill failed the exam again. ---Don’t worry about him. he will never give up until he _______. A.succeed B.successful C.succeeded D.succeeds
5.Mike always does his homework as _________ as the exams.
A,good B.better C.well D.best
C
D
C
B
B
1.The world’s population is growing ________ and there is ________ land and water for growing rice. A.larger;less B.larger;fewer C.more;less D.more;fewer2.I hope everyone can care about __________ the environment and stop ________ things. A.protecting;wasting B.protecting;to waste C.protect;wasting D.protect;to waste3.I think Zibo is becoming ___________. A.more beautiful and more beautiful B.more and more cleaner C.more and more beautiful D.clean and clean4.---What do you think of math,Lily
----I think it’s ________ than English. A.much difficult B.more difficult C.most difficult
B
C
A
A
4.写 作 训 练
书面表达。世界上仅有一个地球，我们就生存在这个地球上，所以保护环境是我们义不容辞的责任。那么，我们应该做些什么？我们该怎么做呢？take good care, important, only one earth, our duty to… plant trees, collect battery, plastic(塑料的) bags, protect animals, spit, in public places, rubbish, … …_____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
It’s an important job to take good care of the environment. Because we have only one earth, we can’t live without it. It’s our duty to protect it. I think we can plant more and more trees. We can also collect batteries and don’t use plastic bags. We must protect animals. Don’t spit in public places! Don’t throw rubbish everywhere! I believe we can make our home cleaner and more beautiful!
Thank You