八年级英语下册Unit7单元知识点解析

Unit 7 What’s the highest mountain in the world ?1. The Sahara is about 9,600 ,000 _________ ________ (平方公里) in size . square kilometerssquare ⑴adj. “平方米” , 用于数字后表面积。

⑵ n , 正方形；广场in size （面积）大小2. 珠穆朗玛峰大约8,844米高。

Qomolangma is about 8,844 ________ _________ .meters high .在英语中，表示事物的长、宽、高、深时，结构为：“基数词 + 单位名词+ 形容词（long, wide, tall , deep等）”。

单位词有： meter，foot（英尺），inch（英寸），kilometer（千米）kilogram（公斤）等3. He is 2 meters tall. （同义句）He is a ___________________ man .two- meter- tall各个词间用连字符连接，常作前置定语修饰名词。

4. 珠穆朗玛峰比世界上任何山都高.Qomolangma is higher than _______ _______ _______ in the world.any other mountain“any other +可数名词的单数”任何其他的人或物, 用于同一范围内相比较。

5. Lucy is more careful than any other student in her class. (同义句)=Lucy is more careful than ______ ______ ______ in her class.the other students“any other +可数名词单数”可与“the other + 可数名词复数”互换，6. Lucy is more careful than any other student in her class. (同义句)= Lucy is ______ ________ ________ student in her class.the most careful“any other +可数名词单数”, 可用最高级形式表达。

7. China is larger than ____ in Africa.A. the other countriesB. any countryC. any of the other countriesD. any other country选B中国属于亚洲，不在非洲范围内, 要把带有other的选项排除,8. 中国在世界上拥有的人口最多。

China has ______ ______ _________ in the world .the biggest population表示人口的“多或少”,不用“much或little”, 要用“large，big或small”9. The population of the town is much ___ than that of your town.A. lessB. fewerC. smallerC.10. 加拿大的人口有多少?______ _____ ____________ ______ Canada?What’s the population of提问有多少人口，常用“ what is the population of …?”11. — _____ the population of China?—It’s about billion.A. What’sB. How many isC. How much is12. The word’s population is growing ____ and there is _____ land and water for growing rice.A. more; lessB. larger; fewerC. larger; lessD. more; fewerC.13. 中国比美国历史长得多。

The US has a________ _________ history than the US.much longer比较级前的修饰词有：much ，a lot “…得多” , a little “比......一点”even, still “更...” ,14. In the talent show, I performed well and Ann did even ____.A. well B .better C. more D. worseeven后要用比较级15.对于今天的长城之旅，大家可以自由提问我任何问题。

______ ______ to ask me anything on today’s Great Wall ______tour.Feel free , tourfeel free 随便，不受拘束tour n 旅行→ tourist n 旅游者tour guide 导游travel v 旅行→ traveler n 旅游者16. Jim went on a five-day _____ of Beijing this summer.A. travelB. journeyC. tripD. tourD.辨析:观光游玩用tour ，长途旅行用travel ，短途短期用trip，一段距离用journey，was very surprised that Mr. Guo sailed across the world by himself.A. excitedB. amazingC. relaxingD. amazedamazing adj.令人吃惊的，了不起的main reason was to protect ________ (保护)their part of the country.protect v保护protect sb./ sth from 保护某人/ 某物19. ______ ______ ______ ______ (正如你所看到的) , The Great Wall is quite tall and wide.As you can see20. _____ _____ _____ _____ _____(据我所知), there are no man-made objects as bigas The Great Wall .As far as I know 据我所知as far as I can see 依我所见21. One of the word’s most dangerous _______ (sport) is mountain climbing,sportsone of + the 形容词最高级 + 可数名词复数22. Ten people _____________(include) a baby, were hurt in the crash.（坠毁）includinginclude ，动词→ including 介词，包括23 .It is also very hard to take in_______ _____ (吸入) air as you get near the top. take in 吸入take after（外貌）相像 take away 拿开 take down 写下，记下take in吸收， take off 起飞；脱下 take it easy 别紧张take pictures照相 take care of 照顾，照料24. She works very hard ,so she will ____ in ____ the exam.A. successful; passB. success ;passingC. succeed; passingD. successful; passing选C.succeed v →success n 成功→successful adj. 成功的→successfully adv成功地succeed in doing sth 成功地做某事25. Why do so many climbers ______ ______ ________ (冒生命危险)?risk their livesrisk one’s life to do sth 某人舍命做某事26. One of the main reasons is because people want to ________ __________ (挑战自我)in the face of difficulties.challenge themselvesin the face of difficulties面对困难spirit of these climbers shows us that we should never give up trying to ______(实现) our dreams.achieveachieve v 实现→ achievement n 成绩achieve one’s dream = one’s dream comes true实现某人的梦想achieve主语一般为“人”come true主语一般是“梦想”28. It also shows that humans can sometimes be stronger ____ ___ ____ (自然的力量)the forces of nature自然的力量29.The elephant weights ______ ______ (很多倍) more than this panda.many times很多倍30._______ _______ (出生时), a baby panda is about 20cm long .At birthgive birth to 生孩子；产仔31. A panda can live up to_______ _______(达到) 30 years.up to 高达up to +数量词达到be up to sb. “由某人决定”32. At 9:00 , they find that most of the babies are already ________ (wake) and hungry.awakeawake adj. 醒来（反义词）asleep 睡着的33. When the babies see the keepers, they run over with ___________(excite)excitement .n 激动；excited形容词 ,感到兴奋exciting?形容词，令人兴奋的34. The babies often ________ ________ ________(死于疾病) and do not live very long. die from illnessdie from 死于die v. → death n. 死，死亡→dead adj. 死的→ dying adj. 将死的35. He can’t even move because of his _______ (ill).illness, n 疾病36. Adult pandas spend more than 12 hours a day __________ (eat) about 10 kilos of bamboo.eatingspend … (in) doing 花时间做某事37. Scientists say there are now ______ ________(不到) 2000 pandas living in the forests .fewer than. 不到,少于（跟可数名词）;less than 不到,少于（跟不可数名词）38. Another 200 ______ _______(左右) live in zoos or research centers in China andother countries.or so 左右，上下39. Another reason for ______ ______ ______(越来越少) pandas is because people arecutting down forests.fewer and fewer比较级 +and +比较级越来越……40. Funta Wild Adventure is very popular and ______ tourists visit it year by year.A. more and moreB. fewer and fewerC. less and lessD. more or lessA.more and more 越来越多重点短语1. as big as 与……一样大2. one of the oldest countries 最古老的国家之一3. feel free to do sth. 随意地做某事4. as far as I know 据我所知5. man-made objects 人造物体6. part o f... ...... 的组成部分7. the highest mountain 最高的山脉8. in the world 在世界上9. any other mountain 其他任何一座山10. of all the salt lakes 在所有的咸水湖中11. run along 跨越… …12. freezing weather 冰冻的天气13. take in air 呼吸空气14. the firs t people to do sth. 第一个做某事的人15. in the face of difficulties 面临危险16. give up doing sth. 放弃做某事17. achieve one’s dream 实现某人的梦想18. the forces of nature 自然界的力量19. reach the top 到达顶峰20. even though =even if 即使21. at birth 在出生的时候22. be awake 醒着23. run over with excitement 兴奋地跑过去24. walk into sb. 撞到某人25. fall over 摔倒26. take care of 照顾;照料27. every two years 每两年28. cut down the forests 砍伐林木29. endangered animals 濒危动物30. fewer and fewer pandas 大熊猫越来越少31. be in danger 处于危险之中32. the importance of saving these animals拯救这些动物的重要性。