新概念英语一册Lesson129-130自学笔记精讲解析

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　　1.Where do you think you are?你认为你现在是在哪儿?

　　do you think 是用在特殊疑问句中的插入语，用来征询见解或表达看法。因为句中插入语已经是疑问式，主谓倒装了，所以you are的位置不能再对调了。插入语一般是对句子加一些附加的解释，在句子中作独立成分。常用来作插入语的结构有I hope, I think, I'm afraid, you know等。插入语可以位于句尾或句中，有时也可出现在疑问句中。

　　2.must have been doing sth.,一定/准是在做某事。

　　这种结构用来表示对过去正进行的事情的推测。下文中的can't have been是 can't have been driving的省略式，在意思上与must have been driving正相反。

　　3.That's why I didn't see the sign.所以我才没看见那牌子。

　　why I didn't see the sign作is的表语从句，以why引导的从句用来解释事情的原因。

　　4.…you'd better take my advice!……你最好还是听从我的劝告吧!

　　take one's advice是“听从劝告”的意思。

　　新概念英语第一册129-130课语法知识点 Grammar in use

　　表示猜测和推断的情态助动词must和can't(2)

　　must与can't不仅能表达对现在和将来的猜测和推断，而且能表达对过去的猜测和推断——这时可用 must have been表示肯定的推断，用can't have been(而不是mustn't have been)来表示否定的推断，如后面跟进行时则表示对过去正在进行的动作的猜测。请看例句：

　　You must have been driving at seventy miles an hour.

　　你当时肯定正以每小时70英里的速度行驶。

　　I didn't see it. I must have been dreaming.

　　我没看见。我当时一定是在胡思乱想吧。

　　She can't have been 29.She must have been 36.

　　她那时肯定不会是29岁，她一定36岁了。

　　He can't have been reading. He must have been sleeping.

　　他那时肯定不是在看书，他准是在睡觉。

　　新概念英语第一册129-130课重点单词详解 Word study

　　1.charge v.

　　(1)罚款;使承受经济负担：

　　He was charged by the policeman for speeding.

　　他因开车超速而被警察罚款。

　　(2)要(价);收(费)：

　　The hotel charged them ￡ 900 for one night.

　　饭店向他们索要900英镑作为住一晚的费用。

　　(3)指控;指责：

　　They charged him with murder.

　　他们指控他犯了谋杀罪。

　　2.dream v.

　　(1)做梦;梦见：

　　He dreamt about his grandmother last night.

　　他昨天夜里梦见他的祖母了。

　　Do you often dream at night?

　　你晚上经常做梦吗?

　　(2)梦想;幻想：

　　She dreamed that one day she would be as free as a bird

　　她幻想着有一天自己能像鸟儿那般自由。

　　I once dreamed of becoming a famous doctor.

　　我曾一度梦想着成为一位著名的医生。

　　(3)出神;心不在焉;空想：

　　Don't dream away your life!

　　不要在想入非非中虚度你的人生。

　　Sorry, I didn't see the sign. I must have been dream ing.

　　对不起，我没看见那牌子。我一定是思想开小差了。

　　3.wave v.

　　(1)招手;挥手示意：

　　He waved us quiet.

　　他挥手要我们别出声。

　　She waved me goodbye.

　　她向我挥手告别。

　　(2)起伏;飘动：

　　The flag is waving in the wind.

　　旗帜正在风中飘扬。

　　She was attracted by the waving sea.

　　她被那汹涌起伏的大海吸引。

　　新概念英语第一册130课课后练习答案 Key to written exercises

　　A

　　1 He didn't come to work yesterday. He must have been ill.

　　2 He didn't come to the office this morning. He had to stay at home.

　　3 I don't think she was Austrian. She must have been German.

　　4 I lost my pen so I had to buy a new one.

　　5 He forgot his case so he had to return home.

　　6 She didn't hear the phone. She must have been sleeping.

　　B

　　1 I don't think they were. They can't have been Canadian.

　　They must have been Australian.

　　2 I don't think she was. She can't have been Finnish.

　　She must have been Russian.

　　3 I don't think they were. They can't have been Japanese.

　　They must have been Chinese.

　　4 I don't think they were. They can't have been butchers.

　　They must have been bakers.

　　5 I don't think she was. She can't have been a dentist.

　　She must have been a doctor.

　　6 I don't think he was. He can't have been a sales rep.

　　He must have been the boss.

　　7 I don't think she was. She can't have been seventeen.

　　She must have been twenty-one.

　　8 I don't think they were. They can't have been five.

　　They must have been seven.

　　9 I don't think he was. He can't have been seventy-six.

　　He must have been over eighty.

　　10 I don't think she was. She can't have been fifty-five.

　　She must have been under fifty.

　　11 I don't think it was. It can't have been the 17th yesterday.

　　It must have been the 16th yesterday.

　　12 I don't think it was. It can't have been Tuesday yesterday.

　　It must have been Wednesday yesterday.

　　13 I don't think it was. It can't have been the 19th yesterday.

　　It must have been the 20th yesterday.

　　14 I don't think it was. It can't have been cheap.

　　It must have been expensive.

　　15 I don't think it was. It can't have been easy.

　　It must have been difficult.

　　16 I don't think she was. She can't have been old.

　　She must have been young.

　　17 I don't think he was. He can't have been ill.

　　He must have been tired.

　　18 I don't think they were. They can't have been listening to the radio.

　　They must have been watching television.

　　19 I don't think she was. She can't have been retiring.

　　She must have been looking for a new job.

　　20 I don't think they were. They can't have been sitting.

　　They must have been standing.

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