九年级英语全册 Unit 4基础知识必背手册 人教新目标版

1、unit 4 用法集萃1. pretend to do sth. 假装做某事  i pretended to sleep just now.   pretend +从句 假装   i pretended that i fell asleep. 2. a few 与 a little 的区别，few 与 little 的区别   a few 一些    修饰可数名词             

2、; a little 一些   修饰不可数名词      两者表肯定意义       如：he has a few friends.  他有一些朋友。         there is a little sugar in the bottle. 在瓶子里有一些糖。  few  少数的  修饰可数名词     

3、          little 少数的修饰不可数名词  但两者表否定意义      如：he has few friends.  他没有几个朋友。          there is little sugar in the bottle.在瓶子里没有多少糖。3. still 仍然,还  用在be动词之后，行为动词之前 如：  i am still

4、 a student.我仍然是个学生  i still love him.我仍然爱他。4. what if + 从句   如果怎么办， 要是 又怎么样 如：  what if she doesnt come? 要是她不来怎么办？  what if lilei knows?  如果李雷知道了怎么办？5. help with sth. 如：they help with this problem.   help sb. do.  如：they help you relax. 他们帮助你放松6. ask sb.

5、to do 叫做某事    ask sb. not to do sth.叫不要做某事    tell sb. to do 告诉做某事  tell sb. not to do sth. 告诉不要做某事如：teacher asked me to clean the classroom.    teacher asked me not to clean the classroom.点拨2： be worried about也可表示“为而担心、担忧、着急”，与worry about不同之处在于

6、，be worried about侧重状态，worry about侧重动作。例如： i am worried about my fathers health.(= i worry about my fathers health.) 我为我父亲的健康担忧。 2.what if everyone else brings a present?要是别的人都带来了礼物，该怎么办呢? 点拨：句中的what if意为“要是，又怎么样”，是what would happen if.的省略形式。例如： what if we should fail? 如果我们失败了，该怎么办呢? what if they did

7、nt come here on time? 要是他们没有按时到达，怎么办呢? what if it rains when we cant get under shelter? 假若下起雨来，我们又没处躲雨可怎么办呢? 3.i get nervous before big parties and then i get pimples. 在大型晚会前我特别紧张，于是我身上长出小浓疱。 点拨：句中两个get的用法和意义都有所不同。get既可用作行为动词，也可用作系动词。本句中的第一个get是系动词，意为“变得”，后面应接形容词作表语；第二个get是及物动词，意为“长出”。试比较： the boy i

8、s getting taller and taller after he gets this kind of medicine.吃了这种药后，那个男孩个子越来越高了。 i must get some fruit in the market.我得在市场上买点水果。 this skirt is getting dirty；it needs washing.这条短裙脏了，该洗一洗了。 4.i really want a dog，but my parents wont let me have one. 我真想养一条狗，可是父母不让养。 点拨：动词let作“让”解时，后面作宾语补足语用的动词不定式常省去

9、to。let的同义词allow后面也可接动词不定式作宾语补语，但是动词不定式符号to却不可省去。试比较： my mother wouldnt let me go to the film.我妈妈不会让我去看电影的。 allow me to introduce miss mary.请允许我介绍一下玛丽小姐。 my parents allowed me to buy a second-hand car.我的父母允许我买一部二手车。 5.id wait for her to introduce herself to me. 我要等她来向我作自我介绍。 点拨1：句中wait for her to int

10、roduce是词组wait for sb/sth的延伸。wait for sb/sth意为“等待某人或某事”，而wait for sb to do sth意为“等待某人做某事”。例如： danny，there is someone waiting for you outside.丹尼，外面有人在等你。 the family are waiting for you to have dinner.家里人正在等着你吃饭呢。 点拨2： introduce herself to me意为“(她)向我作自我介绍”。introduce可以用来向人介绍自己，也可以用来向人介绍另一个人。例如： may i in

11、troduce mr. wang to you? 我可以把王先生介绍给你吗? let me introduce myself to you.让我给你作个自我介绍吧。 6.social situations dont bother you in the slightest.社会活动一点儿也不会影响你。 点拨：句中not.in the slightest意为“一点也不”、“根本不”，与not.at all同义。例如： you are not wrong in the slightest/at all.你一点儿也没有错。 she doesnt like eggs in the slightest/a

12、t all.她根本不喜欢吃鸡蛋。 7.you have plenty of friends，and you enjoy the company of other people. 你有很多朋友，你也喜欢和别人交往。 点拨：句中的plenty of是“许多”的意思，与a lot of，much，many同义。但plenty of和a lot of后可接可数名词复数或不可数名词，much后面只可接不可数名词，many后面只可接可数名词复数。试比较： there are plenty/a lot of books on the desk.桌子上有许多书。 dont worry. there is pl

13、enty/a lot of time.别着急，时间很充裕。 they have many apples at home.他们家里有很多苹果。 there isnt much rice in the bowl.碗里没有多少米饭。 she has a lot of books；but i cant see her reading books.她有许多书，但我却没有见她读书。 8.you would also rather stay at home and read a good book than go to a party. 你宁愿意呆在家，读本好书，也不愿意出去参加聚会。 点拨：“would

14、rather.than.”，意为“宁愿而不愿”，rather与than的后面都可接动词原形。例如： they would rather watch tv at home than go out to play soccer.他们宁愿在家看电视也不愿意出去踢球。 he would rather play leisurely than do homework.他宁愿慢悠悠地玩耍也不愿做作业。典句必背1.如果你有一百万美元，你会做什么？ what would you do if you had a million dollars？2.如果你是我，我会穿衬衫打领带。 if i were you ，id

15、 wear a shirt and tie.3.如果我不认识别人怎么办。 what if i dont know anyone.4.你是什么类型的？我想我有创造力而且外向。 what are you like ？ i think im creative and outgoing.5.如果我赢了一百万美元，我会把它捐给医学研究。 if i won a million dollars ， id give it to medical research.6.你有大量的朋友，你喜欢有其他人的陪伴。you have plenty of friends ，and you enjoy the company

16、of other people.7.我没有礼物，如果别人都带礼物怎么办。 i dont have a present， what if everyone else brings a present.8.如果我是你，我会在睡前走很长一段路。 if i were you ，id take a long walk before going to bed.9.你的朋友也许会说你很容易相处。your friend would probably say that you are easy to get along with.10.你有一小圈的小朋友。 you have a small circle of

17、very good friends.经典范文背诵pollution around usin recent years our life is becoming better and better. but our environment is becoming worse and worse. its very bad for our life. now many people have air-conditioners and cars, they produce (give off ) waste gas. more and more trees are being cut down. there are so much sand on the earth (leaving only sand ) . we often see factories pour waste into rivers or lakes. water in the river is quite dirty. we haven