学习好资料 欢迎下载
swim? Would you like to go for a swim? What do you think of going for a swim? 8. should的用法：
（1）.should意为“应该”，可表示劝告、建议、义务、责任等。如：We should protect the environment.我们应该保护环境。 （2）Should have done表示对过去动作的责备、批评。如：You should have finished your homework.
你应该已经完成作业了。（事实上你没有完成。） 9. will的用法：
will表示意愿、意志、打算，可用于多种人称。如：I will help you if I’m free this afternoon.今天下午如果我有空，我就会帮你。 注意：
1、will在there be句型中的形式及其句式变换。
由于“一般将来时”的结构可以用“will+动词原形”来表示，所以there be句型的一般将来时的形式就是there will be。（一定不能说there will have）例如：There are many students in our school.→There will be many students in our school. There will be a sports meeting next week.一定不能说：There will have a sports meeting next week.
2、will与be going to do something区别：
①. be going to表示近期、眼下就要发生的事情，will表示的将来时间则较远一些，如：He is going to write a letter tonight. He
学习好资料 欢迎下载
will write a book one day.
②. be going to表示根据主观判断将来肯定发生的事情，will表示客观上将来势必发生的事情。He is seriously ill. He is going to die. He will be twenty years old.
③. be going to含有“计划，准备”的意思，而will则没有这个意思，如：She is going to lend us her book. He will be here in half an hour.
④.在有条件从句的主句中，一般不用be going to,而多用will,如：If any beasts comes at you, I'll stay with you and help you. 10. had better的用法：
had better意为“最好”，没有人称的变化，后面接不带to的不定式，其否定形式为：had better not。如：
We had better go now.我们最好现在就走。You had better not give the book to him.你最好不要把这本书给他。 考点二：含有情态动词的疑问句的回答: 1. 对may引出的问句，可以有下列回答方式：
Yes,you may. Yes, of course. Yes, certainly. Sure . No, you mustn’t. No, you can’t.
2.对must引出的疑问句，回答方式为：Yes, …must. No,… needn’t/ don’t have to.
3.could在疑问句中，表示委婉的语气，此时could没有过去式的意思。如:Could you do me a favour?你能帮我个忙吗？—
学习好资料 欢迎下载
Could I use your pen?我能用一下你的钢笔吗?—Yes, you can.可以。（注意回答）
4. shall引出的疑问句用于第一人称，表示征求对方意见或客气的请求。其回答方式有以下几种： Yes, please. All right. No, thank you. 5.would you…的回答方式有以下几种：
Yes, I will. (No, I won’t.) Sure . (I’m sorry , I can’t.) All right/ OK/ With pleasure. Certainly. (No, thank you .) Yes, please. 【例题】—Would you do me a favour and pass on my thanks to Lily?—________.
A.That’s right B.With pleasure C.It doesn’t matter D.No trouble
【解析】A.意为“对了”，B.意为“乐意效劳”, C.意为“没关系” D.意为“不费事”。答案：B 考点三:情态动词的被动语态
含有情态动词的被动语态的结构为：情态动词+ be + done (动词的过去分词)。做题时要兼顾情态动词和被动语态这两个方面。如：You needn’t get up so early every day.你不必每天都起这么早。She shouldn’t speak to her mother in that way.她不应该用那种方式和妈妈说话。More and more trees must be planted in China.在中国必须种植更多的树木。Many of the stars can not be seen because they are far away from us.很多星星
学习好资料 欢迎下载
我们都看不到，因为它们离我们太远了。 考点四:情态动词表示推测的用法:
一、“情态动词+动词原形”表示对现在的推测。 1、can表示推测时一般用于否定句或疑问句。
如：That man can＇t be her husband。she is still single. Who is knocking at the door? Can it be the postman? 2、must表示肯定的推测，一般用于肯定句中。如：He must be in his office now. Mr Li must be working now，for the lights in his office are still on.
3、might表示推测时不一定是may的过去时，只是表示其可能性较小。如：The man may be the headmaster.
—Where is Mr Li?—He might be working in his office. —May Mr Li come?—He might not come here.
4、Could表示推测时，语气can比要弱，说话者留有余地。如：—Could it be an animal?—It could not be，because it is not moving.
5、Should表示推测的可能性比较大，仅比must的可能性小一点。如：It is already 10 o’clock now。 They should be there. 二、情态动词表示对过去可能发生的动作或存在过的动作的推测性用法。
1、“must +have done/been------”表示“过去一定发生过某事或存在过某种状态”，不用于“musn’t+have-----”形式。如：She must
学习好资料 欢迎下载
have seen the film before，hasn’tshe?(注意反意疑问句的后半部分)
You must have met uncle Wang in the shop yesterday，didn’t you? (注意反意疑问句的后半部分)
2、“should +have done /been-------”表示“本应当做某事，而实际上并没有做”；“shouldn’t+完成式”表示“本来不应当做，而实际上却做了”。以上结构常带有说话者的责备的感情色彩。如：You should have finished your homework earlier。 (but in fact you did not finish it on time).
You shouldn’t have gone to bed when you woke up at five (but in fact you went to bed again then).
3、“needn’t+完成式”表示“本来没有必要做某事，而实际上却做了”。如：There was plenty of time. She needn＇t have hurried . 4、“can’t /couldn’t+have done /been-------”表示“过去不可能发生了某事或存在过某种状态”。如：
I saw him just now. He can’t have gone to Japan. She said the man couldn’t have stolen her car.
5、“could+have done/been-------”表示“过去本来能够，可以做某事或成为某种状态，而实际上没有”，说话者有些遗憾。“could sb. have done /been-------？”是它的问句形式。如：You could have stayed with the Smiths while you were in New York (but in fact you stayed in a nearby hotel .) Could Mr Li have helped this girl
学习好资料 欢迎下载
student?
6、“may/might+完成式”表示“过去可能，本来可以于某事而实际上没有干”，might的可能性较小，语气较弱。如：He may have finished reading the book. She might have given you some help，however bus she was.
初中英语情态动词讲解
