1、Unit 3 单元语法一、揭开could的“面纱”第一层：时态could为can的过去式，常用于一般过去时，表示能力、许可和可能性。如：He could play the piano when he was four.他四岁时就会弹钢琴了。第二层：语气could 为情态动词，用法与can相同，但could表示的语气更委婉。could 常用来引导疑问句，表示比较委婉地提出请求或建议。如：Could I take this seat， sir， if you dont mind？先生，如果你不介意，我可以坐这个位置吗？第三层：句式1.“Could you please？”意为“请你做好吗？”,常用
2、来向对方提出请求;please 有时可以省略,后跟动词原形;其肯定回答可以是“Yes, sure/Yes, I can/Yes, of course.” 否定回答常用“Sorry，I cant. I.”如：-Could you please clean your room？你能打扫一下你的房间吗？Yes, sure. /Sorry, I cant. I have to do my homework.当然可以/对不起,我不能,我必须做作业。2.“Could I？”意为“我能做？”常用于向对方提出礼貌的请求.请求对方允许自己做某事。其肯定回答可以用“Sure/Of course/No proble
3、m”;否定回答可以用“Sorry，.”如：-Could I use your computer？我能用你的电脑吗？-Of course. /Sorry，Ill use it.当然。/对不起,我要用它。巩固练习1. -Could you help me with my English after school? -_.A. Its a pleasure B.With pleasure C. Youre welcome D.OK.I could2.-Mom, its too hot. _I swim in the lake? -No, _ you. Thats too dangerous!A.Sh
4、ould;cantB.Need;mustntC. Must: needntD.Could;mustnt3.-Could you go to the new movie with me now?-Sorry, I_. Look, its time for me to watch “The Reader on CCTV.A.cantB.canC.needntD.must4.-Could you please _ me before you go to the party?-No problem.A.callB.calledC.callingD.to call5.Lily_ swim when sh
5、e was four. And now she is a good swimmer.A.couldB.canC.shouldD.might二、按要求改写句子，每空一词。1.Could I swim in the river with my friends，Mom？（作否定回答）_, _ _. Its too dangerous.2.Would you like to go shopping with me？（同义句转换）_ _ _ go shopping with me?3.Could I borrow the English novel？（作肯定回答）_ _.4.My mother can
6、play computer games（用last year 改写）My mother _play computer games last year.三、根据汉语提示完成句子。1.你在星期五帮忙照看一下我的孩子好吗？_you_ _ after my child on Friday?2.-我们可以在这里拍照吗？-对不起,不能。-Could we take photo here? -Sorry, _ _.四、用括号中所给单词的适当形式填空，使得句意完整、语法正确。1.Helen always helps her mother do the _ (dish) after supper every e
7、vening.2. Could you please _ (sweep) the floor after you finish your homework, Mary?3. Lily always folds her clothes before _ (go) to sleep. Thats a good habit.4. You cut your finger and remember not _ (get) it wet.5. My mother is very tired. And she also has _ (many) housework to do at home.6. Wash
8、ing clothes is_ (bored). I hate it.7. Jimmy didnt finish his homework yesterday and _ (either) did I.8. If possible, we should _ (help) our friends out when they are in trouble.9. Each of the members of our family needs _ (share) the housework at home.10. Lets make some_ (notice) for the Clean-Up Da
9、y.五、词组考查：选择适当的词组并用正确形式完成句子。（有多余选项）take out stay out sit down get a ride help out throw down1. If you feel uncomfortable, you should_. You mustnt drive yourself.2. He opened his schoolbag and _a Chinese book and then began to read it.3.My parents told me not to_ late in the evening.4.What can we do t
10、o _around the house, Mom?5. After finishing his homework, Tom _his pen and turned on the TV.Unit 4 单元语法一、建议表达法1直接建议法。常用“Lets动词原形”2委婉建议法。常用“Shall we动词原形？”或“Could you please?3征求性建议法。常用“How about/What about名词或动词-ing形式？”4劝告性建议法。常用“ha动词原形”如：Youd better to school.你最好步行去学校5责备性建议法。常用“Why not动词原形？”或“Why dont
11、 you动词原形？”如:Why not go and ask our teacher? -Why dont we go and ask our teacher？为6请求性建议法。常用“Would you like+名词或动词不定式？”各种回答1欣然接受。(1) OK! Certainly! /Good idea! / Of course!(2) Yes, please. /Yes, I think so.(3) All right. /With pleasure./Id love to.2婉言谢绝。(1) Sorry, I dont think so.(2) Sorry, Im afraid
12、not.(3) No, thanks.二、连词 until，so that，although的用法1当until引导的从句的谓语为肯定形式时，意为“在之前”I watched TV until she came back.我一直看电视直到她回来。谓语动词为否定形式时，not.until.意为“到时候才”2so that意为“以便/为了”,引导目的状语从句,相当于 in order that3although引导让步状语从句,不能与but连用,但可与et，still连用巩固练习一、用所给动词的适当形式填空。1. Could you please_(call) me, Liu Wei?2.What
13、 about _ (have) dinner with me, Maria?3.Would you like _ (spend) your holiday in New York?4. Youd better _ (come) here before six oclock.二、单项选择。1. -Im tired out after three-day work day and night.-_ relax yourself? Go out and enjoy the natural beauty?A.Why notB.Why dontC.What aboutD.Shall we2. -Its
14、nearly lunchtime. How about having some noodles and dumplings? -_.A. Youre welcomeB. Thats all rightC. Thats nice of youD. That sounds good3. She didnt leave the school _she worked out this problem.A. as long asB. untilC. sinceD. while4. The old man leads a simple life, _he has a lot of wealth.A. al
15、thoughB.soC. unlessD. because三、同义句转换，每空一词。1. Although Mr. Smith is ninety years old, he can climb the mountain. Mr. Smith is ninety years old, _ he can climb the mountain.2. My mother got up early so that she could catch the first bus.My mother got up early _ _ _she could catch the first bus.3. Jack
16、 didnt have dinner before his mother came back.Jack _have dinner _his mother came back.四、用括号中所给单词的适当形式填空，使得句意完整、语法正确。1. I dont know what_ (do) next. Could you give me some advice?2. Sandy went out of the room _ (angry) without a word.3. Dont worry. He is _ (care) enough to look after little Betty.4.
17、 My parents dont allow me_ (hang) out with my friends on school nights.5.Why not_ (have) a cup of coffee?6. Dont forget about_ (go) to the bank for money on your way home.7. Whats wrong with your eyes? Did you get into a fight with_ (other)?8. My sister borrowed my clothes without_ (ask). I was very
18、 angry.9. Mike is my_ (old) brother. He is two years older than I.10. Im not good at_ (write) stories. I like telling stories.五、词组考查：选择适当的词组并用正确形式完成句子。（有多余选项）be afraid of get on with give back work out forget about look through1. I hope that your advice will _well.2. Jack has few friends because he
19、doesnt know how to_ his classmates.3. _your old clothes and see if there is anything to give away.4. Nancy forgot to _the book to the library.5. Its all over. Theres nothing to _now.KeysUnit 3 单元语法一、1B 2D 3A 4A 5A二、1No，youcant2.Could you please 3.No problem 4.could三、1Could，please look 2.you cant四、1d
20、ishes2.sweep 3.going 4.to get 5.much 6.boring7.neither8.help 9.to share 10.noticcs五、1get a ride2.took out 3.stay out 4.helpout 5.threw downUnit 4单元语法点过关一、1call 2.having 3.to spend e二、1A 2D 3B 4A三、1.but 2.in order that 3.didnt；until四、1to do 2angrily 3careful 4to hang 5.have 6.going 7.others 8.asking 9.elder 10.writing五、1work out 2get on with 3Look through4.give back 5.be afraid of
