人教版九年级Unit 4 知识点学案

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   Unit 4 I used to be afraid of the dark.

1.used to“过去常常”的用法

短语：

     used to do ...过去常常做某事(暗含“现在不这样的”意思)

     used to be...过去是……；过去处于……状态(暗含“现在不这样的”意思)

     be used to介 (doing)sth.习惯于(做)某事

     be used to do sth.被用于做某事(=be used for doing sth.)(注：be used to do为use sth.to do

                   的被动。)

     be used by sb.被某人使用

     be used as+工具被用作……

注：带有used to的句子变成问句时，可借助于did或used。

eg:①She used to go to school late.

  ②Mother used to tell us stories when we were young.

  ③She used to be a quiet girl.

  ④I’m used to loneliness.

  ⑤The man has been used to living in the countryside.

  ⑥A knife can be used as a weapon.

  ⑦The car is being used by me.

  ⑧Did he use to wear glasses?(=Used he to wear glasses?)

  ⑨You used to be short,didn’t you?(=You used to be short,usedn’t you?)

2.反意疑问句的用法

一般情况下，反意疑问句只对主句反问，且回答时前后必须保持一致；反意疑问句的主语一般为主句主语所对应的代词。另外，回答时yes,no翻译为“是”或“不是”与它本身无关，而与它是否与主句一致有关，如果一致则翻译为“是”；如果不一致，则翻译为“不是”。

eg①:-------She is a student,isn't she?

    --------Yes,she is.是的，她是。/No she isn’t.不，她不是。

  ②--------She isn’t a student ,is she?

---------Yes,she is.不，她是。/No,she isn’t.是的，她不是。

以下为其它特殊用法：

⑴否定转移中的反意疑问句

  在think,believe,suppose,imagine等后跟的宾语从句中，如果主句主语为第一人称时，应对从句反问；如果主句主语为第二、第三人称时，应对主句反问。

eg: ①I don’t think it is right,is it?

②She doesn’t think it is right.does she?

⑵主句含有否定词中的反意疑问句

  如果主句含有否定词hardly,seldom,few,little,no,never,nothing,nobody,no one等否定词时，那么这个句子则为否定句。但否定前后缀(un-,dis-,im-,in-,-less等)除外。

eg:①He can hardly do his homework,can he?

  ②He was unhappy,wasn’t he?

⑷祈使句中的反意疑问句

  1.祈使句的反意疑问句遵循的原则是：前肯后否/肯；前否后肯。

eg:①Be quick,won’t you/will you?  

  ②Don’t be late again,will you?

  2.let's和let us引导的祈使句中的反意疑问句

eg:①Let’s do homework,shall we?   

  ②Let us do homework,will you?

⑸There be/exists/lives/stands/lies/follows...句型中的反意疑问句

eg:There is a book and two pencils on the desk,isn’t there?

⑹陈述部分含有used to的反意疑问句，其反意疑问句用usedn’t或didn’t.

eg:He used to be a bad student,usedn’t/didn’t he.

练习：

(  )1.—There are always many volunteers in great events,________ ?

     —Yes.Many hands make light work!

A.aren’t there  B.are there  C.aren’t they  D.are they

(  )2.—He didn’t go to the lecture this morning,did he?

     —_______ ,though he was not feeling very well.

A.No,he didn’t  B.Yes,he did  C.No,he did  D.Yes,he didn’t

(  )3.—Hi,Sam.Your mother’s busy these days,______ ?

     —Yes,she is.

A.has she  B.is she  C.hasn’t she  D.isn’t she

(  )4.I don’t think the newly-directed film by Zhao Wei is as interesting as people say,_____ ?

A.do you  B.isn’t it  C.is it  D.don’t you

(  )5.—It’s Father’s Day,_____ ?

     —Yes.Let’s buy a gift for Dad.

A.isn’t it  B.doesn’t it  C.isn’t he  D.doesn’t he

3.never adv.“从不，决不”的用法

主要与肯定动词连用，在句中的位置和not相同。位于句首时，句子要用半倒装结构。

练习：

(  )1.I can ______ be a nurse.I’m not a very patient person.

A.seldom  B.ever  C.never  D.always

(  )2.It’s _____ to be calm before danger.

A.healthy  B.careful  C.different  D.necessary

(  )3.—Do you like seeing a movie on your mobile phone?

     —No.I _____ do that because it makes me uncomfortable.

A.seldom  B.often  C.never  D.sometimes

(  )4.—Look,Jenny.I bring you a comic.

     —Great.It’s _____ what I need.

A.quickly  B.hardly  C.nearly  D.exactly

4.It be +形容词+(for/of sb.)to do sth..“某人做……是……”for sb.用于使用表示客观情况的形容词，of sb.用于使用表示主观感情、性格品德的形容词。

eg:①It’s important for us to learn English well.

  ②It’s really nice of you to help me.

练习：

(  )1.It’s important _____ people ______ learn team spirit.

A.of;of  B.of;to  C.for;to  D.to;to

(  )2.It’s not healthy _____ us _____ sleep late.

A.for;for  B.to;to  C.for;to  D.to;for

(  )3.It’s good for us _____ .

A.to exercise  B.exercise  C.exercises  D.exercising

(  )4.It’s _____ of you to do these things for us.

A.friendly  B.easy  C.hard  D.important

(  )5.It’s _____ to keep your voice down in public places.

A.unpolite  B.politely  C.impolite  D.polite

5.worry的用法

⑴作vi.时，“担心，发愁”，后跟介词about。(=be worried about)

egon’t worry about Tom.

⑵作vt.时，“使担心，使担忧”，其后常接sb.作宾语。

eg:What worries you so much?

⑶作vt.时，“为……担心”，其后常接从句。

egon’t worry how much you spend.

⑷作n.时，[U]“担心，烦恼”[C]“令人担心的人或事”

eg:It’s really a worry for me.

注：worried和worrying都可作形容词，前者说明人，意为“烦恼的，焦虑的”；后者修饰事物，意为“令人烦恼的，令人担心的”。

eg:There’s a worried look on his face.

练习：

(  )1.—You look _____ .What’s up,sir?

     —I can’t find my ticket,but it’s time to check in.

A.sleepy  B.hungry  C.tired  D.worried

6.be proud of(=take pride in)“以……感到自豪”

练习：

(  )1.The girl _____ the dark.She doesn’t go out at night.

A.is interested in  B.is afraid of  C.is proud of  D.is angry with

(  )2.Zhang Jike has won the championship in France Table Tennis Open.All the Chinese ____ his challenging spirit and excellent skills.

A.are proud of  B.take care of  C.get along with  D.make a decision

6.so……that与such……that“如此……以致于……”的区别

⑴二者都可引导结果状语从句。

⑵so为adv，such为adj。

⑶二者结构分别为：

   so+adj/adv原级+that                       xxxxxxxxxxxxxxxxxxxxxxx

   so+adj+a/an+n(可单)+that                   such+a/an+adj+n(可单)+that

   so+many/few+ns(可复)+that                 such+adj+ns(可复) +that

   so+much/little(少的)+n(不可数)+that          such+adj+n(不可数)+that

（注：只修饰形容词、副词时，只可用so。

      修饰单数名词时，二者可以互换。

  修饰复数和不可数名词时，多多少少用so,不多不少用such.）

注：so that既可引导目的状语从句(有情无逗)；也可引导结果状语从句(无情有逗)。

练习：

(  )1.There is not _____ room for these books,so you’d better put them on the shelf.

A.so much  B.much too  C.so many  D.too many

(  )2.The boy is ______ clever ______ he can work out the problem easily.

A.so;that  B.such;that  C.so;if  D.such;if

(  )3.I’m afraid I can’t agree to ______ a big discount.

A.such  B.so  C.like  D.as

(  )4.He will come on time ______ it rains heavily.

A.so that  B.even though  C.but  D.because

7.感叹句的用法

⑴一般情况下，what为adj.，对名词进行感叹，how为adv.，对adj/adv原级进行感叹。

⑵感叹句的结构为：

What+a/an+adj+n(可单)(+主+谓/系)+其它！

What+adj+ns(可复)(+主+谓/系)+其它！ How+adj/adv(原级)(+主+/系/谓)+其它!  (注：特例

What+adj+n(不可数)(+主+谓/系)+其它！ How+adj.(原级)+a/an+n(可单)(+主+谓/系)+其它!}

eg:①What a beautiful flower it is!

  ②What beautiful flowers they are!

  ③What nice weather it is!

  ④How nice it is!

⑶判断用what或how感叹的方法。

  首先，找到句子的主语。

  然后，根据主语前的单词的词性确定用what或how来感叹。如果主语前为名词，则用what感叹；如果主语前为adj/adv,则用how来感叹。

练习：

(  )1.—_______ wonderful dictionary it is!Thank you for buying me such a useful present.

     —I’m glad you like it.

A.What a  B.What  C.How a  D.How

(  )2.______ great picture! Who painted it?

A. How       B. What           C. How a     D. What a

3.--- It’s reported that some famous singers will give a performance in Yangzhou.  

---Wow, ________.

A. how exciting news B. what exciting news C. what an excited news D. how excited the news is

4．__________great fun they are having in the sitting room!

A. What         B. How          C. What a          D. How a

5．___ nice weather it is!  

A. What a  B. What  C. How  D. How a

Self Check

1.return的用法

⑴作vi.时，“返回”(=go back/come back)，后接介词to。

eg:I will visit you when you return to Shanghai.

⑵作vt.时，“归还”(=give back)

eg:She has returned the dictionary.

⑶作n.时，“回报”

短语：

    in return“作为回报”

eg:I sent her a present in return for her help.

2.in person“亲自”  eg:I’ll go to fetch it in person.

3.tons of许多；大量(+可数名词复数或不可数名词)