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八上Unit 5知识清单
▲语法
情态动词may的用法 may+动词原形
表示许可或征求对方意见，“可以”
You may go now.
may引导的一般疑问句，回答用Yes,…may./No, … can’t.
May I smoke here — No, you can’t.
表示猜测。
You may be right.
注意：maybe可能（副词放句首）；may be可能是（放句中）
1.—Mum, _____ I play the computer games for a while
—I’m afraid you have to finish your homework first.
must B. need C. will D. may
2. May I borrow your dictionary —No, you _________.
3.—How nice the building is! What is it for
—It_______ a hotel. But I’m not sure.
must be B. have to be C. maybe D. may be
动词不定式做宾语
构成：肯定to +动词原形，否定not to +动词原形
动词不定式在句子中不作谓语，没有人称、数和时态的变化。
常接不定式的动词有agree, decide, fail, hope, learn, plan, prepare, want等。
1. She planned____________(visit) our city this summer.
2. I want____________(go) to the library this afternoon.
3. Please ask him__________(not watch) TV until he finishes his homework.
▲词法
短语汇集
have pity on 同情 take action 采取行动
in fact 事实上 at birth 出生时
in the beginning 一开始 the same as 与…同样
as a result 因此 right away立刻，马上
live on 以食…为生 get lost 迷路
in danger 处境危险 because of 因为，由于
Could you please (not) do … “请你做…好吗？”表示委婉的请求
肯定回答：Sure. / Of course. / No problem. / I’d love to.
否定回答：Sorry, …
Could you please tell me how to get to the restroom
—_______. I’m not sure how to get there.
have pity on sb同情某人→what a pity！真可惜, It’s a pity that…令人遗憾的是..
—I’ve tried to pass the driving test, but I failed.
—_______. Good luck to you next time.
That’s great B. It’s interesting C. That’s a pity D. Glad to hear that
3.die死亡→died(过去式)
His grandpa _____ three years ago.
What …do you like best 你最喜欢…
What wild animal/ colour/ subject...
5.ten days old十岁大，数字+days/ months/ years +old, 表示多大年龄
①My brother is ten________(year) old.
6.not…any more不再…
I won’t agree with my sister ______________.
7. It’s +adj+(for sb) + to do sth “对某人来说，做某事是怎样的”
①It’s necessary for us____________(talk) to our parents when we have problems.
8.none “没有一个”，用于三者以上。为不定代词，常与of连用，回答how many的提问，即可表示人，也可表示物。
区别：no one回答who的提问
All the volunteers were very tired, but ______ of them took a rest.
—Who was hurt in the traffic accident
—______.
None B. No one C. Nothing
9.weigh 重vt.→名词weight
①That elephant__________ up to five tons.
②After Spring Festival, I have grown in__________.
10. smaller and smaller越来越小 比较级+and+比较级
①China is becoming _________ and ___________(strong).
11.because of+动名词/名词/代词，“由于，因为…”
because+句子
They came late____________ the heavy rain.
They came late__________ it rained heavily.
12.get lost迷路 lose/lost动词“丢失”，lost形容词“丢失的”
lose one’s life 丧生
lose one’s way迷路
The solder lost _______(he) life in the war.
It’s easy to get__________(lose) in the forest.
▲综合练习
1. ____________(不幸地)，we have no money left.
2. Take it easy. It’s just a cold. There is nothing _________(严重的).
3. Children’s lives are in__________(危险) every time they cross this road.
4. we hope_________(arrive) around six.
5. It’s raining hard so I decide _____________(not go) out..
6. Why did you choose___________(sit) in the front of the coach
7. —Must I finish my homework now
—No, you needn’t. you may_________(finish) it later.
8. —Whose book is this
—It ______ Lucy’s. But I’m not sure.
A. may be B. maybe C. have to be D. must be
9.Dont’f forget ______ an umbrella______ you. It’s going to rain.
A. to take; to B. taking; to C. to take; with D. taking; with
She is in hospital and the doctor says she is__________.
A. danger B. in danger C. in dangerous D. on danger

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