Unit 7 What's the highest mountain in the world?重点单词解析练（无答案） 人教版八年级英语下册

八下Unit 7
一、重点单词
平方；正方形 n._____________
2.沙漠 n. ________________________
3. 人口，人口数量 n. _____________
4. 亚洲 n. _______________________
5.旅行者，观光者 n. _____________
6.古代的，古老的adj. ____________
7. 保护；防护 v. ____________
8.人造的 adj. . ______________
9. 成就；成绩 n. ______________
10.包括，包含v ___________________
11.条件，状况 n. ______________
12.成功，实现v. _________________
13.到达，完成 v. _____________
14.自然界，大自然n. _______________
15.重量是，称重 v. __________
16.成年人（的）adj/n. ______________
17. 竹 子 n. _____________
18.研究；调查 v/n. ____________
二、短语
1.________________吸入；吞入（体内），收留/养，领会，理解
2.___________________冒生命危险
3.______________即使，虽然
4.______________ 面对（问题、困难等）
5._______________________出生时
6__到达( 某数量、程度等)；至多有
7._____________________照顾
8.____________________绊倒
9.___________________走路时撞着
10._______________________在世界上
11._________正如你们所看到的
12.___________________据我所知
13.____________________随便做某事
14.____________________迎接……的挑战
15.____________________接受挑战
16.___________________认真考虑，权衡
17.______________________大约
18._____________________醒来
19.____________________死于 （外因）
20._______________做研究
三、重点句型
1.China has the biggest population in the world. 在世界上中国拥有最多的人口。
2.Even more serious difficulties include freezing weather conditions and heavy storms. 更严重的困难包括寒冷的天气条件和暴雨。
3.The first Chinese team did so in 1960, while the first woman to succeed was Junko Tabei from Japan in1975. 中国登山队在1960年第一次成功登顶，而在1975年来自日本的Junko Tabei成为第一个成功登顶的女人。
4.The babies often die from illnesses and do not live very long. 那些幼崽经常死于疾病，活不了太长时间。
5.Many years ago, there were a lot more bamboo forests and pandas in China, but then humans started to cut down these forests.许多年前，中国有更多的竹林和熊猫，但是后来人类开始砍伐这些竹林。
四、重点单词解析
1、weigh ：v. 有……重，重
表示“重（多少）”，为系动词。
表示“称……的重量”为及物动词
weight：不可数名词，“重量，体重”
2、many times more than “比……多许多倍”
常见倍数表达法：
A+倍数+形容词或副词比较级+than +B A比B大（长，高，宽等）多少倍
A+倍数+as+形容词或副词的原级+as+ B A正好是B的多少倍
……times +more +名词+than+被比对象
3、every two years:“每两年”
every 与数词或few，other等连用，表示时间或空间的间隔，其形式为：
every+基数词+复数名词
every + few +复数名词 “每隔几……”
4、die from 与die of
表示死的原因，die 后既可接介词 of，也可接 from, 两者的区别是：
若死因存在于人体之上或之内（主要指疾病、衰老等自身的原因)，一般用介词 of。
若死因不是存在人体之内或之上，而是由环境造成的(主要指事故等方面的外部原因)，一般用介词 from 。
若死因是环境影响到体内，即两方面共有的原因，则可用 of, from 均可。
5、research研究, 调查（动名同形）
do some research on:对···做些研究
6、awake醒着的（形容词）
be awake=stay awake=keep awake醒着的
wake-woke: 醒来、弄醒（动词）
wake up醒来
7、fall-fell摔倒、跌倒
fall over 向前摔倒(后面无宾语)
fall down 摔倒倒下
fall off= fall down from 从···摔下来
8、 there be sb doing sth 有某人正干某事
there is紧贴单数或不可数(就近原则)
there are紧贴复数(就近原则)
9、another+单数: 另外一个
another 2 days=2 more days=2 other days另2天，再2天
others=other +复数：其他的···。
one···the other···两者范围内（一个，另一个）
some··the others（或the other··）一些另一些（有范围）
some···others：一些，另一些（没有范围）
die-died-dying死（动）
dead死的（形） death死（名）
die of死于（内部原因，如疾病----因of 字母太少）
die from死于（外部原因----因from字母太多）
练习
一、单项选择
1. The Sahara is about 29　　　　　the Taklamakan, the largest desert in China.
A. times as large as B. times as larger as
C. time as larger as D. times larger
2. The fastest plane made by the USA can fly 10, 000 meters　　　　　the sound per hour.
A. less than B. more than
C. faster than D. slower than
3. Because of the greenhouse effect(温室效应), the sea level will become
　　　　　.
A. tall and tall B. high and high
C. taller and taller D. higher and higher
4. What can we do to protect ourselves　　　　　heart disease
A. to B. off C. out D. from
5. In Japan, cherry flowers are a lot　　　　　than peach flowers.
A. most popular B. more popular
C. popular D. popularized
6．Xiao Dan sings ________ in our school. She won the first prize in the singing competition yesterday.
A．beautiful B．the most beautiful
C．more beautifully D．the most beautifully
7．—Who is the best student in your class, Helen
— Linda. She always listens to the teachers __________ of us all.
more careful B．more carefully
C．the most careful D．the most carefully
8．Which do you like ________, fish, beef or chicken
A．good B．better C．well D．best
9．— Which moves ________, a turtle, a snail or a sloth
— Well, it’s hard to say.
A．slowlier B．more slowly C．slowliest D．most slowly
10．—Who lives ________ school in your class
—Jimmy does. His home is just next to our school.
A．close to B．closest to C．far from D．farthest from
二、用所给词的适当形式填空
1.There are four oceans on the earth，and the Pacific Ocean is the _________ (large)．
2.Jackson has difficulty in __________（solve）the problem in such a short time.
3.Air pollution is __________ (harm) to our health.
4.The panda ________(keep) are taking care of those pandas.
5.They can provide special places for ___________ (home) people to stay.
6. I hope the environment will become ___________ and ____________. (good)
7. The ___________________ (care) you are, the _____________( few) you’ll make mistakes.
8. The ______________(beautiful) park I’ve ever been to is Disneyland.
9. It’s __________________________(interesting) movie (that) she has ever seen.
10. Watching TV is much more interesting than ___________ basketball.(play)
三、根据汉语完成句子
1. 正如你们所看到的，古代的国王建了这座城墙。
______ you can see, the ancient emperor ______ the wall.
2. 在面对困难时，要保持冷静。
Keep calm ______ the _____ of difficulties.
3. 看到妈妈进来，小女孩兴奋地跳起来。
The little girl jumped ______ _______ when she saw her mother come in.
4. 请随便问关于考试的情况。
_______ free ______ ask anything about the exam.
5. 那个陌生人约莫有30来岁。
That stranger is thirty years old ______ _______.
6．那些幼崽经常死于疾病，不会活太长时间。
The babies often ________ ________ ________ and do not live very long．
7．科学家说现在有不到2，000只熊猫居住在剩下的森林里。
Scientists say there are now ________ than 2，000 pandas ________ in the remaining forests．
8.我们国家处在极度危险中，我们必须动员军队。
Our country _______ ________ _________ _________; we must mobilize the army.
9.这位老人处于危险中。
The old man _______ ________ _________.
10.这位老人能活到九十岁。
The old man can _________ _________ _________ninety years.
四、根据要求完成句子
1.His mother is ill. He has to take care of his mother. (改为同义句)
His mother is ill. He has to ________ ________ his mother.
2.He spent 2 hours playing computer games last night. (改为同义句)
It ________ him 2 hours ________ ________ computer games last night.
3.John didn't go to school because he was ill. (合并成一句)
John didn't go to school ________ ________ his ________.
4.The panda weighs 100 kilos. (对画线部分提问)
________ ________ does the panda weigh
5.The elephant weighs l, 000 kilos. The monkey weighs 57 kilos.(合并成一句)
The elephant weighs ________ ________ ________ than the monkey.