人教版高中英语必修2Unit3知识点详解.doc
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1、Part 1. Warming up1. In pairs discuss what they have in mon adj. 共同的,普遍的;常见的常用结构:in common 共有,公用(在句中多作状语)have nothing/little/a lot/something in common (with) sb.与某人没有/许多/有些共同之处in common with 和一样common sense/knowledge 常识common welfare 公共福利Jane and I have nothing in common.=I have nothing in common wi
2、th Jane. 我与简毫无共同之处。In common with many young people, he prefers pop songs.和许多年轻人一样,他喜欢流行歌曲。2. Work out a list and compare it with your partner. compare.with/to.把。和。作比较 Compare this with/to that, and youll find which is better.把这个和那个比较,你就知道哪个更好了。 注意:(1)compare.to.还有“把。比作。”之意,不可用compare.with.替换。 Shake
3、speare compared the world to a stage.莎士比亚把世界比作一个舞台。 (2)过去分词短语compared with(与。相比)作状语时,可与compared to替换。 Compared with/to most children,she was indeed very unfortunate.与多数孩子相比,她确实很不幸。3.calculate v.计算;打算;推测。calculate on/upon指望;打算be calculated to do打算做;故意做be calculated for适合于,为。而设计Mary always calculates
4、the cost of goods before she buys them.玛丽总是在买东西之前先估算好价钱。Mr.Li calculated that it would take him three hours to get to Shenzhen.李先生估计他要花三个小时才能到达深圳。We cannot always calculate on/upon others help .我们不能总是指望别人的帮助。What I said yesterday was not calculated to hurt you.昨天我说的话不是有意伤害你的。Part 2. Pre-reading, rea
5、ding and comprehending 1. Although I was young I could simplify difficult sums.sum n. 金额; 款项; 总数; 算术题常用结构:in sum 简言之; 总而言之sum up/sum sth. up 总结;概括He was fined the sum of 200$. 他被处以200美元的罚金。The sum of 5 and 3 is 8. 5加3的和是8。To sum up, there are three main ways of solving the problem.概括起来说,这个问题主要有三种解决办
6、法。In sum, the plan failed.总之,计划失败了。2.I developed very slowly and it took nearly two hundred years before I was built as an analytical machine by Charles Babbage.我发育缓慢,差不多到了两百年之后,查尔斯巴比奇才把我制成了一台分析机。 (1)“It took/was+一段时间+before从句”是一个固定句型,意为“过了后才 ”。 (2)before用于这类句型时的结构还有: It didnt take/was long (或一段时间)
7、before.过了不久(一段时间)就It will take/be long (或一段时间) before.要过很久(一段时间)才 It wont take/be long (或一段时间) before.不久(一段时间后)就会3. By the 1940s I had grown as large as a room. “by+时间名词”意为“到。为止” By the time he came back we had had our dinner. 等他回来的时候我们已经吃完晚饭了。 He has finished his work by now. 到目前为止,他已经做完他的工作了。 Well
8、 have graduated from high school by next June.到明年六月份我们就中学毕业了。4. As time went by, I was made smaller. 在本句中, as用作连词,引导时间状语从句,表示“随着”, 而with 用作介词, 后接名词短语,形成with结构。 Eg: 随着时间的流逝,他们变成了好朋友。As time went by, they became close friends. As time went by,=With time going by,.随着他长大,他对一切都失去了兴趣。As he grew up, he los
9、t interest in everything.go by (1) (时间)过去,逝去 As time goes by, my memory seems to get worse.(2) 从经过 Did you see a boy go by on a bicycle?(3) 按照,遵循 Dont go by that old map.别参照那张旧地图。(4) 以来判断 You cant always go by appearances.你不能总是以貌取人。(5)(机会)等失去;轻易放过(一次好机会)Never let a good opportunity go by. go over 检查
10、,复习 go out 出去,熄灭 go through 遭受,经历联想拓展go against 违背;对不利 go without 勉强维持,凑合;没有而将就go in for 爱好;参加;从事 go over 复习;仔细审查 go ahead 进行;发生;(尤指经某人允许)开始做go through 通过;经历,经受;查看,调查go out 出去;熄灭5.As a result I totally changed my shape.(1)total adj. 总的;全部的;整个的n总数;合计 v总数为;合计为totally adv. 完全地;整个地in total 总共;总计(totally
11、)(2)as a result 结果;因此as a result of 由于;作为的结果result in (cause)导致;致使 result from (be caused by) 起因于;因而引起with the result that 结果是。 即学即练6(1) Hard work _ success.努力终归成功。(2) Success _ hard work.成功来自于努力工作。(3)He was ill. _, he didnt go to school.他生病了。因此,他没去上学。(4)_ his illness, he didnt go to school.由于生病,他没去
12、上学(5)The farm was flooded, with the result that most of the harvest was lost.农场被淹,收成损失了一大半。results in results from As a result As a result of联想拓展as a consequence 结果in consequence 结果in consequence of 由于6.Over time my memory has developed so much that, like an elephant, I never forget anything I have
13、been told!随着时间的推移,我的记忆能力发展得如此之快,就像一头大象一样,我从来不会忘记告诉我的任何事情!拓展:(1)当 so./such.位于句首时,句子要部分倒装,但 that 后的从句不用倒装。So small was the mark that I could hardly see it.那个标记非常小,我几乎看不见它。So hard does he work that he seldom goes home.他工作那么努力,几乎不回家。 (2)so.that.中的主句和从句的主语是同一个,that 从句也可改为 as to do 形式。The old lady was so
14、kind that she led me to the hospital.The old lady was so kind as to lead me to the hospital.这个老太太是那样好心,她把我领到了医院。(3)so that 连在一起用,可引导结果状语从句,也可引导目的状语从句。so that引导目的状语从句时,从句中常使用 can/could/may/might/will/would/should 等情态动词;引导结果状语从句时,从句中一般不用 can和 may等词,在 so that前可以有逗号,意思是“因此;所以”。He hurried up so that he c
15、ould catch the train.他匆匆赶路为的是赶上火车。(对比:He hurried up so that he caught the train. 他匆匆赶路,结果赶上了火车。)(4)not so+adj./adv. (as.)(不像)这么It didnt take so long as we expected.时间没像我们预料的那么久。I havent enjoyed myself so much for a long time.我很长时间没有这么高兴过了。高手过招单项填空What a beautiful day!Yes, its that Id like to take a
16、walk. (200912陕西西安检测)A. such nice weather B. so a nice weatherC. too nice weather D. nice weather so解析:选A。因为此处weather是中心词,但它为不可数名词,所以不能加冠词。 即境活用1(1)_about wild plants that they decided to make a trip to Madagascar for further research.ASo curious the couple was BSo curious were the coupleCHow curious
17、 the couple were DThe couple was such curious解析:考查 so.that.引导结果状语从句,且 so.放于句首时,句子部分倒装。答案:B (2)Most children need encouragement in time of failure _ they can cheer up again.Aso thatBin case Cbecause Dif解析:考查 so that 引导目的状语从句。答案:A7. But I was always so lonely standing there by myself, until in the ear
18、ly 1960s. 当not until 引导的时间状语位于句首时,句子用部分倒装。如: Not until he lost the game a second time did he realize his fault.直到他再次输了比赛他才意识到他的失误。8Anyhow, my goal is to provide humans with a life of high quality.无论如何,我的目标是为人类提供高质量的生活。(1)anyhowadv.(也作anyway)不管怎样,无论如何;反正;即使如此“粗心地,随意地”,作此意讲时,只能用 anyhow。联想拓展somehow adv
19、. 以某种方式, 用某种方法;不知怎么地somewhat adv.有点,稍微He told me not to buy it, but I bought it anyhow.他告诉我不要买它,但不管怎样,我还是买了。It may snow, but anyhow I will go to the town.可能要下雪,但无论如何我都要进城。We must get the work finished somehow by tomorrow morning.我们必须设法在明天早上以前把工作做完。Somehow we lost our way.不知怎么地我们迷路了。My jacket is some
20、what like yours.我的夹克与你那件有点相似。完成句子 我对这个工作有点厌倦了。I am tired of this work.不知怎么地,他害怕她。 he was afraid of her.他无论如何也不能使她信服。He couldnt convince her .somewhat Somehow anyhow(2)ofn.结构中的名词是抽象名词时,相当于其名词所对应的形容词的意思,说明被修饰词具有某种特征或属性。常用的名词有:use, importance, help, value, interest, benefit 等。这些名词前可用 great, no, little,
21、 some, any, not much 等修饰,以表示不同程度。The camel is of great help to the Arab.(The camel is very helpful to the Arab.)骆驼对阿拉伯人有很大帮助。 ofn.结构中的名词表种类、数量、度量等时,表示不同的人或物的共同特征,此时名词前通常有冠词。常用的名词有:size, type, kind, price, height, depth, length, weight, age, shape, colour 等。The two are of an age, but are of different
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