九年级上册Unit 3知识点

1 九年级 新目标（上册）

Unit 3 Teenagers should be allowed to choose their own clothes

重难点分析：

1. 情态动词的被动语态

may/can/must/should be done

2. Allow 允许,准许

①allow doing sth. 允许做某事

②allow sb. to do sth. 允许某人做某事

E.g.: My parents allow me to watch TV on weekends. 我父母允许我周末看电视。

3. Of one's own 某人自己的

4. Sixteen-year-olds = Sixteen-year-old children 合成词 "十六岁的孩子"

5. Stay up 熬夜,不睡觉= not go to bed

6. Agree with sb./Agree to sth.

7. 表示"穿，戴"

①have on--衣服、帽子、鞋子。无进行时态。

②be in-后面接衣服颜色的名词或者具体衣服的名词，表示状态。

③put on-用于穿衣服，穿鞋，戴帽子等。表示动作。

④dress-替某人穿，dress sb.

8. Worry

①worry about+n./代词/动名词

②be worried about

9. Fail to do sth. 未能做某事

10. be strict with sb./be strict in sth. 对某人/某事要求严格

11. Concentrate on sth. 把注意力集中到某事上。

12. At present=now=right now=at this time 目前/现在

13. Look good on sb. 穿、戴在某人身上好看

14. sleepy- 困倦的(adj.) feel/be sleepy 感到困倦的

asleep-睡着的(adj.) fall asleep=go to sleep 入睡(n.)

15. Keep

Keep off 让开，不接近

Keep on doing sth.继续不断的做某事

Keep sb. doing sth.让某人一直做某事

16. See

①see sb./sth. do sth. 看到某人/某物经常做某事（看到动作的全过程）

②see sb./sth. doing sth. 看到某人/某物正在做某事（看到动作正在发生）

17. Be serious about 当真要.......

18. Only 句型的部分倒装

Only 引导短语做状语并且位于句首时，应该使用部分倒装语序，即为

"only+短语+助动词（情态动词）+主语+动词+....."

E.g.:Only at the end of the meeting did I realize that I was wrong.

只是当会谈结束的时候，我才明白我错了。

19. Way

① in the way-阻挡，挡道. Please move the chair, it is in the way.

② on the way-在...路上.

③ by the way 顺便提一句

④ in a way 在某种意义上，总而言之 2 20. Enough的用法

① 做形容词-可修饰可数&不可数名词。在名词前后均可。但是在连系动词之后做表语。

E.g.: Ten yuan is enough.

② 做代词-可作主语也可做宾语。做主语时，应视为单数形式。

E.g.: --Do you need more food?

-- No,thanks. Enough has been taken here.

③ 做副词-可修饰形容词&副词，必须在形容词&副词之后。

E.g.: He knows the place well enough. 他对这个地方有足够的了解。

21. So 的用法--"也是如此"

① so + 助动词/系动词/情态动词+主语" "..... 也是如此", 前后主语不一样。

*当前面的句子为否定句时，用neither/nor来代替so. 表示"也不".

E.g.: I don't have my own computer. Neither does my sister.

②so +主语+ 助动词/系动词/情态动词" "..... 确实如此", 前后主语要一致。

E.g.: --It's too cold today.

--So it is.

22. 一般现在时/含有情态动词的被动语态用法的讲解。

① Trees are planted in spring every year.

② Homework should be finished on time.

练习题：

1. --I didn't pass the exam.

-- You ____ harder from now on.

A. should study B. will study C. should have studied D. may study

2. --Your hair is long. You should get it ____.

-- Ok. I will do it tomorrow.

A. cut B. cuts C. cutting D. to cut

3. --Don't ___ too late. You will have much work to do tomorrow.

--I won't. Thank you.

A. clean up B. stay up C. set up D. open up

4. -Do you think ___ should be allowed to drive in our country?

-No, I don't think so.

A. sixteen-years-old B. sixteen year olds C. sixteen-year-old D.sixteen-year-olds

5. --How beautiful our hometown is !

--Yes. Trees and flowers ___everywhere.

A. can be seen B. can see C. be seen D.can't see

6. She went to school instead of ____ at home.

A. stay B. staying C. to stay D.stayed

7. We were allowed ____ here for a little longer time.

A. staying B. to stay C. stayed D.to staying

8. You have got your hands ____, child.Please wash them under the water tap.

A. dirt B. clean C. dirty D.cleaning

9. Young students should stop ____ earrings because it is bad for them.

A. wear B. wearing C. To wear D.wore

10. She needs _____ a rest. For she is working for over five hours.

A. to have B. having C. have D. had

11. He didn't go with me._______, he went to Shanghai with his parents. 3 A. but B. and C. Instead D.Anyway

12. He is too young. He is not ____ to join the army.

A. old enough B. enough old C. too old D. old too

13. --Mary has learned English well.

--______.

A. So does Jim B. Jim does so C. So has Jim D. Jim has so

14. I must be back home ____ 8：00pm.

A. by B. from C. for D. between

15. Li Ming is a hard-working man. He often stays up ____ 11:00 pm.

A. before B. while C. until D. when

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