Unit 7 What's the highest mountain in the world? 单元固定短语具体用法讲义

人教版英语八年下册7单元固定短语具体用法讲义
一、这些短语的具体用法和例句：
1. as big as：表示“与……一样大”。例如：This building is as big as that one.（这栋建筑和那栋一样大。）
2. one of the oldest countries：意为“最古老的国家之一”。例如：China is one of the oldest countries in the world.（中国是世界上最古老的国家之一。）
3. feel free to do sth.：表示“随意地做某事”。例如：You can feel free to ask me any questions.（你可以随意问我任何问题。）
4. as far as I know：意思是“据我所知”。例如：As far as I know, he is a very kind person.（据我所知，他是一个非常善良的人。）
5. man-made objects：指“人造物体”。例如：Many man-made objects are changing the world.（许多人造物体正在改变世界。）
6. part of...：表示“……的组成部分”。例如：The library is part of the school.（图书馆是学校的一部分。）
7. the highest mountain：意为“最高的山脉”。例如：Mount Everest is the highest mountain in the world.（珠穆朗玛峰是世界上最高的山脉。）
8. in the world：表示“在世界上”。例如：The Great Wall is one of the greatest wonders in the world.（长城是世界上最伟大的奇迹之一。）
9. any other mountain：意思是“其他任何一座山”。例如：This mountain is higher than any other mountain in the area.（这座山比这个地区的其他任何一座山都高。）
10. of all the salt lakes：表示“在所有的咸水湖中”。例如：The lake in this area is the deepest of all the salt lakes.（这个地区的湖泊是所有咸水湖中最深的。）
11. run along：意为“跨越……”。例如：The road runs along the coast.（这条路沿着海岸延伸。）
12. freezing weather：表示“冰冻的天气”。例如：The freezing weather makes it very difficult to go outside.（冰冻的天气让外出变得非常困难。）
13. take in air：意思是“呼吸空气”。例如：Plants take in air through their leaves.（植物通过叶子呼吸空气。）
14. the first people to do sth.：指“第一个做某事的人”。例如：He was the first person to reach the top of the mountain.（他是第一个到达山顶的人。）
15. in the face of difficulties：表示“面临危险”。例如：In the face of difficulties, we must remain calm.（面临困难，我们必须保持冷静。）
16. give up doing sth.：意思是“放弃做某事”。例如：I gave up smoking last year.（我去年戒烟了。）
17. achieve one's dream：表示“实现某人的梦想”。例如：With hard work, he finally achieved his dream.（通过努力工作，他终于实现了自己的梦想。）
18. the forces of nature：意为“自然界的力量”。例如：We should respect the forces of nature.（我们应该尊重自然界的力量。）
19. reach the top：意思是“到达顶峰”。例如：The climbers finally reached the top of the mountain.（登山者终于到达了山顶。）
20. even though：表示“虽然；尽管”。例如：Even though it was raining, they still went for a walk.（尽管下雨了，他们还是去散步了。）
21. at birth：意为“在出生的时候”。例如：At birth, a baby's weight is usually about 3 kilograms.（在出生时，婴儿的体重通常约为 3 公斤。）
22. be awake：表示“醒着的”。例如：She was awake all night.（她整夜都没睡。）
23. run over with excitement：意思是“兴奋地跑过去”。例如：The children ran over with excitement when they saw the presents.（孩子们看到礼物时兴奋地跑过去。）
24. walk into sb.：指“撞到某人”。例如：I accidentally walked into a wall.（我不小心撞到了墙上。）
25. fall over：表示“摔倒”。例如：She fell over and hurt her knee.（她摔倒了，膝盖受伤了。）
26. take care of：意思是“照顾；照料”。例如：Please take care of my dog while I'm away.（我不在的时候请照顾我的狗。）
27. every two years：表示“每两年”。例如：The Olympic Games are held every two years.（奥运会每两年举办一次。）
28. cut down the forests：意为“砍伐林木”。例如：We should stop cutting down the forests.（我们应该停止砍伐森林。）
29. endangered animals：指“濒危动物”。例如：Many endangered animals are in danger of extinction.（许多濒危动物面临灭绝的危险。）
30. fewer and fewer pandas：意思是“大熊猫越来越少”。例如：With the loss of their habitat, there are fewer and fewer pandas in the wild.（随着栖息地的丧失，野生大熊猫越来越少。）
二、练习题和详细讲解：
1. The library in our school is ___ the one in your school.
A. as big as B. as bigger as C. big than D. bigger as
此题考查 as...as 的用法。as...as 中间用形容词或副词的原级，所以答案选 A。
2. China is ___ one of the oldest countries in the world.
A. a B. an C. the D. /
one of + 复数名词，“最……之一”，表示特指，所以用定冠词 the，答案选 C。
3. You ___ ask me any questions if you have any.
A. can B. must C. need D. should
feel free to do sth. 意思是“随意地做某事”，相当于 can，所以答案选 A。
4. ___ I know, he is not a honest man.
A. As far as B. As long as C. As soon as D. As well as
as far as I know 是固定短语，“据我所知”的意思，所以答案选 A。
5. Many man-made objects are changing our life, ___ the computer.
A. such as B. for example C. like D. as
such as 一般用来列举多个例子，for example 一般只举一个例子，这里“the computer”是一个例子，所以答案选 B。
6. The Yangtze River is the longest river in China and ___ the third longest in the world.
A. is part of B. makes up C. is made up of D. takes up
be part of...“是……的一部分”，符合句意，所以答案选 A。
7. Qomolangma is the ___ mountain in the world.
A. highest B. higher C. high D. highest one
“the + 形容词最高级”表示“最……的”，所以答案选 A。
8. There are many beautiful places ___ the world.
A. in B. on C. at D. of
in the world“在世界上”，是固定用法，所以答案选 A。
9. This building is taller than ___ in the city.
A. any other building B. any other buildings C. any building D. all the buildings
any other + 单数名词，“其他任何一个……”，any + 单数名词“任何一个……”，other 后接复数名词。这栋建筑比城里其他任何一栋都高，所以答案选 A。
10. The Dead Sea is the lowest point on the earth, and it is ___ all the salt lakes.
A. in B. of C. at D. on
of all the salt lakes“在所有的咸水湖中”，所以答案选 B。
11. The bridge ___ the river.
A. runs over B. runs along C. runs through D. runs across
run over“跨越”，run along“沿着……跑”，run through“穿过”，run across“横穿”。桥应该是跨越河流，所以答案选 A。
12. In such ___ weather, we had better stay at home.
A. freezing B. frozen C. freeze D. freezes
freezing weather“冰冻的天气”，所以答案选 A。
13. We should ___ the nature and stop polluting it.
A. take care of B. look after C. care for D. all the above
take care of = look after = care for“照顾；照料”，所以答案选 D。
14. The old man ___ when he heard the good news.
A. run over with excitement B. ran over with excitement
C. run over excitedly D. ran over with excited
run over with excitement“兴奋地跑过去”，主句时态是一般过去时，所以从句也要用一般过去时，run 的过去式是 ran，所以答案选 B。
15. Even though it was very cold, he still went out for a walk.
A. / B. but C. and D. so
even though“虽然；尽管”，引导让步状语从句，不能与 but 连用，所以答案选 A。