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1、Unit 7课文重难点讲解重点短语1.3. 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 of 的组成部分 7. the highest mountain 最高的山脉 8. in the world 在世界上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
2、面临危险16. give up doing sth. 放弃做某事 17. achieve one s dream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 虽然；尽 管21. at birth 在出生白时候 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.
3、 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【精析】1. about 9,600 ,000 square kilometers in size. 大小约 9,6000,0000 平方公里。【解析1】square adj.平方米”，用于数字后表面积。an area of 95 square meters95平方米的面积
4、 n ,正方形；广场Many old people like dancing on the square after supper.解析 2 in size = have /has an area of. (面积)大小2.1, 025 meters deep 深 1, 025 米【注】在英语中，表示事物的长、宽、高、深等时，主要有两种表达方式：结构1 ：基数词+单位名词+形容词(long,wide,tall, deep等)”。如果数词超过1,单位名词要用复数形式。【注】 单位词有：meter; foot; inch; kilogram 等Yao Ming is over 2 meters ta
5、ll.The river is 50 meters wide.基数词 + 单位名词 + in + 名词(length; width; height; depth 等)two meters long = two meters in length 2 米长three feet high = two feet in height. 3 英尺高结构2:长、宽、高、深还可用复合形容词表示数字+量词(单位)+形容词(long/ wide/ tall/ deep 等)”.各个词间用连字符连接，常作前置定语修饰名词。Jeremy Shu-How Lin is a 1.91-meter-tall- basket
6、ball player.解析2 deep adj.深白向take a deep breath.深深呼吸【拓展】 adj f n deep f depth long f length high f height wide fwidth 【解析】any other +可数名词的单数” 任何其他的【用法1 any other其他任何一个后接可数名词单数，指在同一范围内除了某人或某物以外的其他任何人或物通常用于比较级，多用于同一范围内相比较。【用法2】any other +可数名词单数可与 the other +可数名词复”互换，也可用最高 级形式表达。【解析2】population人口；人口数量po
7、pulation做主语且强度整体人口时，谓语动词一般用单数，当主语时 人口的百分之几、几分之几”时，谓语动词常用复数形式。Three quarters of the population are workers. 表示人口的 多或少时,用large或small询问某国、某地有多少人口时，用How large.?;【辨析】tour/ trip/ travel/ journey词语用法travel一M指长途旅仃，到国外或远方旅仃。travel还口作动词tour旅行，周游，观光” 丁般团队都是tourtrip一般指短距离旅行，直达目的地的旅行journey有时并不指真正意义的旅行”，而只是表示走过一
8、段距离。【记】观光游玩用tour ,长途陆路用journey ,短途短期用trip ,travel用法最普遍，特别用于指游记”()Jim went on a guided five-day of Beijing this summer.A. travel B. journey C. trip D. tour8. How long is the wall?长城有多长？【解析】how long多长；多久对长度提问- How long is the table?About 1.2 meters.对时间提问，常用 for或since引导的时间状语来回答。- How long does it take
9、you to do your homework in the evening?-For two hours.12. As far as I know , there are no man-made objects as big as this.据我所知，没有任何一个人造物有长城这么长。as far as就.：.来说，至于.引导状语从句，强调范围或程度，常与动词know,see等连用，可放在句首或句中。【记】 as far as I can remember 据我所记得的as far as I can see 依我所见13. One of the word s most dangerous is
10、poountain climbing, 登山是世界上最危险的运动之一。【解析】one of + the adj.最高级+可数名词复数(1) be famous for因而著名(某人因某种知识、技能或特征而出名)China is famous for the Great Wall and Pandas(2) be famous as作为.而出名(某人以某种身份而出名)Lu Xun was famous as awriter.16.Even more serious difficulties include freezing weather conditions and heavy storms.
11、(比这) 更严重的困难包括冰冻的天气条件和强烈的暴风雨。解析2 freezing adj.冻冰的；结冰的freeze【解析freezing adj.冻冰的，结冰的vToday it is freezing cold.- 1frozen adj.冻结的，被冰覆盖的I don t like frozen food.3】condition 条件；状况out of condition 不健康，身体不好；in good condition 情况良好；完好1 7.It is also very hard to take in air as you get near the top.并且越接近顶部呼吸越困难
12、。【解析】take in吸入； 吞入（体内）take after （外貌）相像 take away 拿开 take down 写下，记下take in吸收，吸纳take off起飞；脱下take it easy另1J紧张take to喜欢，开始从事take pictures照相 take care of照顾，照料18 . The first Chinese team did so in 1960 , while the first woman to succeed was Junko Tabei from Japan in 1975.1960年第一支中国登山队登上了顶峰，1975年日本的田部井
13、淳子成为第一个成功登上顶峰的女子。【解析1】while conj.然而（连接并列句）He is a worker while I am a doctor.conj .当的时候，（引导时间状语从句）While I was doing my homework ,my mother came in .【解析2】succeed v成功，达到 一success n 成功 f successful adj.成功的 f successfully adv 成功地 succeed in doing sth 成功地做某事19 .Why do so many climbers risk their lives ?为
14、什么这么多登山者愿意冒生命危险？【解析】risk one s life to do sthM人舍命做某事There is a risk of sth/ doing sth 有（做）某事的危险20 . One of the main reasons is because people want to challenge themselves in the face of difficulties.最主要的原因之一是因为人们在面临困难的时候想挑战自我。【解析1】challenge v/n 挑战face a challenge 面临挑战challenge sb. to sth 向某人挑战He cha
15、llenged me to a race.他向我挑战赛跑。challenge sb. to do sth 向某人挑战 【解析2】in the face of面对（问题、困难等）21 .The spirit of these climbers shows us that we should never give up trying toachieve ourdreams.这些登山者的精神告诉我们，我们应该从不放弃实现自己的梦想。【解析】achieve v获得；达到； 实现 一 achievement n完成； 成绩achieve one s dream = one s dream comesMeA的梦想词条是否接宾语用法achieve是主语一般为人”come true否主语一般是梦想；理想”【解析1】human n人；人类解析2 force n力量；the forces of 的力量 The force of human is great.
