高中英语人教版必修二Unit3课文内容.docx

1、高中英语人教版必修二Unit3课文内容 高中英语人教版必修二-Unit3- 课文内容 Unit3 课文内容必修二I developed very slowly and it took nearly two 1. an was built as hundred years before I analytical machine by Charles Babbage. 本句是由并列连词and连接的并列句。and后的句子中before引导时间状语从句。 before引导时间状语从句 before引导时间状语从句时可以根据语境译作“过了（时间）才”，“还没来得及就”或“在之前”。 They walke

2、d about 30 miles before they saw a village. We hadnt run a mile before he felt tired. before常用于以下句型中： It was + 时间段 + before. “过了才”，从句常用一般过去时。 It was not long before . “不久就”，从句常用一般过去时。 It will not be long before. “不久就会”，从句常用一般现在时。 It will be + 时间段 + before. “要过 ，从句常用一般现在时。才” It was five days before h

3、e came back. It was not long before he sensed the danger of the position. It will not be long before they understand each other. It will be half a year before you graduate from the school. 练习： 1. It was evening _ we reached the little town of Winchester. A. that B. until C. since D. before 2. Scient

4、ists say it may be five or six years _ it is possible to test this medicine on human patients. A. since B. after C. before D. when 3. Someone called me up in the middle of the night, but they hung up _ I could answer the phone. A. as B. since C. until D. before 4. He made a mistake, but then he corr

5、ected the situation _ it got worse. A. until B. when C. before D. as 5. It was some time _ we realized the truth. A. when B. until C. since D. before 6. The American Civil War lasted four years _ the North won in the end. A. after B. before C. when D. then 7. Why didnt you tell him about the meeting

6、? He rushed out of the room _ I could say a word. A. before B. until C. when D. after 8. How long do you think it will be_ China sends a manned spaceship to the moon? Perhaps two or three years. A. when B. until C. that D. before Anyhow, my goal is to provide humans with a 2.life of high quality. 本句

7、为简单句。my goal为主语；动词不定式 短语to provide.为表语；of high quality作定语，修饰a life. “of + 名词”结构 “of + 名词”结构可在句中作表语、定语和补语。该结构可分为两类： 名词有相应的形容词时，“of + 名词”可转化为相应的形容词。这类名词有value, use, important, help, interest, benefit等。它们可用no, some, any, little, much, great等词修饰。 They are of great help ( = very helpful) to English learn

8、ers. In fact, sports can be of great benefit (=very beneficial) to our health. 名次没有相应的形容词时，“of + 名词”没有相应的形容词形式。常见的名词有age, size, color, weight, quality, height, price, opinion, shape, kind, way等，这些名词前的限定词常为a, an, the same等。 Mr. Smith, my teacher, is of the same opinion. We are of the same age. Tom is

9、 of a different way of thinking. 练习： This book by Tony Garrision is _ for our course. But I think his latest one is better worth reading. use no of B. useless A. D. great useful C. of great use 完成句子 这项工程对每个人都大有好处。 is This project _ (benefit) to everyone. 同时，性别差异的主题也很有趣。is the Also, topic differences

10、 sex of _ (interest). 在这个地区，我们学校的教学质量是最好 的。is school education Our this in (quality) _ area. to into how I did research As 3. time sent by make my radio. 本句中as time sent by为as引导的时间状语从 句，how to make my radio作介词into的宾语。 as引导的时间状语从句 as引导时间状语从句，意为“随着，当”，强调主从句的谓语动作同时发生。 As shots rang, people could be see

11、n running out of the building. as引导比较状语从句，意为“像一样”。 He is as old as I (am). as引导方式状语从句，意为“照的方式”。 When in Rome, do as the Romans do. as引导原因状语，意为“因为，由于”。” As she has no car, she cant get there easily. as引导让步状语从句，意为“尽管，虽然”，此时从句需用部分倒装结构。 Happy as/though they were, there was something missing. Child as/th

12、ough he is, he knows a lot. 练习： Stupid _ it sounds, I was so in love with her that I believed her. A. although B. as C. while D. when Lessons can be learned to face the future, _ history cannot be changed. A. though B. as C. since D. unless 完成句子 我们最好快一点，因为天就要黑了。 We had better hurry, _. 尽管她已经很累了，但她想睡

13、觉是没有指 望的。_, there was no hope of her being able to sleep. 的病人没有遵照详细的调查显示多达50% 指示服药。as indicated have that surveys Careful take not do patients of 50% as many _. drugs (direct) moves possible all the 4.She programs us with she has seen while watching human games. 本句为主从复合句。she has seen while watching

14、human games是省略了关系代词that的定语从句，修饰先行词moves；该定语从句中的while watching human games为时间状语从句的省略形式，完整形式应为while she was watching human games. 状语从句的省略 省略现象一般出现在下列五种状语从句中： 由when, while, as, before, after, till, until, once等引导的时间状语从句； 由whether, if, unless等引导的条件状语从句； 由though, although, even if, whatever等引导的让步状语从句； 由a

15、s, than等引导的比较状语从句； 由as, as if, as though等引导的方式状语从句。 遵循以下原则： 当状语从句的主语与主句的主语一致且从句中含有be动词的某种形式时，可以省略状语从句的主语和be动词。这时从句中可出现 如下结构： 连词 + 名词/形容词/介词短语 While (he was) a young boy, he was always ready to help others. Work hard when (you are) young, or youll regret. When/While (I was) on my way to work, I met h

16、er. 连词 + 现在分词（现在分词与主句主语为逻辑上的主谓关系，且现在分词表示的动作与主句谓语动作同时发生） While (I was) waiting, I was reading some magazines. 连词 + 过去分词（过去分词与主句主语为逻辑上的动宾关系） When (it is) heated, ice can be changed into water. 连词 + 不定式（构成不定式的动词与主句且不定式表示的动主语为逻辑上的主谓关系， 作即将发生） He stood up as if (he was) to say something. 当从句的主语与主句的主语不一致，

17、但从 句主语是it时，从句又含有be动词的某种形式时，可以把it和be动词一同省略。 If (it is) necessary, Ill come tomorrow. 练习： The climate here is quite pleasant, the temperature rarely, _, reaching 30 in summer. ever if B. not if A. D. if so C. if any 用括号内词的适当形式填空 they city, (visit) While _ the received a warm welcome done be it (begin)

18、, _ Once must well. When _ (ask) to answer questions, you should stand up. _ when mistakes often He makes (speak) English. Unless _ (repair), the machine is of no use. She stood at the gate as if _ (wait) for someone. 完成句子： Hell go to the seaside for his holiday if _ possible. He opened the box, as

19、if _ in search of something important. 5. After all, with the help of my electronic brain which never forgets anything, using my intelligence is what Im all about! 本句是主从复合句，介词短语with the help of.中含有which引导的定语从句，先行词为brain；using my intelligence is what Im all about是句子的主干部分，其中动名词短语using my intelligence作

20、主语，what Im all about是what引导的表语从句。 动名词（短语）做主语 单个的动名词（短语）做主语时，谓语动词要用单数形式，一般来说，动名词（短语） 做主语表示习惯性、经常性的动作。 Talking is an art. Learning English well is not easy. 作形it 动名词（短语）作主语时，通常用 式主语，而将真正的主语放到句子的末尾。此 类的常用句型有： no use/good doing sth. 做某事没用 useless doing sth. 做某事没用 It worthwhile/worth doing sth. 做某事是值得的 I

21、t is no use waiting here. It is no good/use complaining. Its worthwhile helping others. important, necessary, possible, impossible, essential等形容词用于形式主语结构中，用动词不定式充当真正主语。 Its important to learn foreign languages. 动名词与动词不定式都可以做主语或宾语。动名词通常表示习惯性、经常性的行为；动词不定式则往往表示具体的一次性的动作。 I like swimming, but I dont lik

22、e to swim this afternoon. 练习： 用括号内词的适当形式填空 _ (say) is easier than _. Its no use _ (cry) over the split milk. Its necessary _ (keep) the room clean. _ (finish) the task in such a short time is hard for me. _ your own needs and styles of communication is as important as learning to convey your affecti

23、on and emotions. A. Understanding B. To be understood C. Being understood D. Having understood 现在完成时的被动语态 1. 现在完成时的被动语态的形式 have/has 现在完成时的被动语态的基本构成是： been done。但在不同的句式中，其具体形式也有所不同。 肯定句形式 主语 + have/has been done + 其他 The bridge over the Yellow River has just been completed. The chicken has been stewe

24、d for two hours. 否定句形式 主语 + have/has not been done + 其他 They havent been told the exciting new yet, have they? The second-hand car has not been sold. 一般疑问句形式 Have/Has + 主语 + been done + 其他 Has her work been finished? Yes, it has. 特殊疑问句形式 特殊疑问词 + have/has + 主语 + been done + 其他 How long has the machin

25、e been used? 2. 现在完成时的被动语态用法 表示被动的动作在说话之前已经完成，强调 过去的动作对现在造成的影响或产生的结果，通常与already, yet, never, recently等副词及时间状语so far, by now, up till now, since等连用。 The room has already been cleaned. (现在已不用打扫房间) The doctor hasnt been sent for yet. （现在应派人去请医生） 真题： Despite the previous rounds of talks, no agreement _

26、so far by the two sides. A. has been reached B. was reached C. will reach D. will have reached Shakespeares play Hamlet _ into at least ten different films over the past years. A. had been made B. was made C. has been made D. would be made Every year a flood of farmers arrive in Shenzhen for the mon

27、ey-making jobs they _ before leaving their hometowns. A. promised B. were promised C. have promised D. have been promised 表示一个被动的动作或状态从过去开始一直持续到现在，并可能持续下去，常与for或since等引出的时间状语（从句）连用，或用于how long引出的句子中。 The machine has been repaired for two hours. How long has the project been carried out? 用在条件状语从句中，表示

28、将来某时已经完成的动作。 Well start as soon as the work has been finished. 真题： We wont start the work until all the preparations _. A. are being made B. will be made C. have been made D. had been made 从句中的动作若要表示比谓语动作之前发生，遵循以下原则： 从句：现在 一般将来时/主句：一般现在时 完成时 主句：一般过去时 从句：过去完成时 3. 现在完成时的被动语态的注意事项 现在完成时的被动语态有两个助动词，即have/has和been，缺一不可。 现在完成时的被动语态与一般过去时的被动语态的区别： 一般过去时的被动语态表示一个被动的动作发生在过去某个时间，其结果对现在没有影响；而现在完成时的被动语态侧重于表示动作或状态尽管发生在过去，但该动作或状态对现在造成了影响（或产生了结果）。 The big fire was put out two hours ago. The big fire has been put out. 真题： I ha