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1、 江苏教师考试资讯、真题请点击江苏教师考试网江苏教师考试网提供江苏教师招聘和江苏教师资格考试资讯、真题资料2016 江苏教师招聘：备考之英语备考之动词二【动 词(三)】一、助动词助动词本身没有词义，不能单独作谓语，只能和主要动词一起构成谓语动词，表示否定、疑问、时态、语态等语法形式，或用来加强语气。常用的助动词有:be, do, have, shall, will 等。它们的具体用法如下：(1)助动词 beA. 可用于构成进行时态She is doing her homework now.I asked him what he had been doing all afternoon.B. 可
2、用于构成被动语态The baby was put in bed by his mother.The invitation was received yesterday.C. 可与动词不定式构成谓语These books are not to be taken out of the room.She is to arrive at six this morning.(2)助动词 haveA. 构成完成时态I have not seen him for three years.How long has your uncle taught in the village?He had lived in
3、 Scotland for fifteen years before he came to England.B. 和动词不定式构成谓语，表示因客观环境促使不得不做的事情She had to go shopping yesterday.(3)助动词 doA. 构成疑问句和否定句Did anyone sharpen this knife?I dont think you are right.J 江苏教师考试资讯、真题请点击江苏教师考试网江苏教师考试网提供江苏教师招聘和江苏教师资格考试资讯、真题资料B.用来加强语气I do want to have a talk with you.Do come a
4、nd see me.C.用来代替动词词组Have you finished your work? Yes, I did yesterday.He plays basketball well. So does his brother.(4)助动词 shall构成将来时态，单纯表示未来情况I shall not be back tonight.(5)助动词 will构成将来时，用于第一、二、三人称。如：They will move to a new house.She will not eat any solid food.注意：(1)have to 与 must 的区别must 是情态动词，意思
5、是“必须”、“应该”、“一定要”，后接动词原形。Must 的否定形式为 mustnt.构成疑问句时，肯定回答一般用 must。否定回答用 neednt 或dont have to 表示“不必”。如：Must I do it now?Yes, you must No, you neednt.have to 表示“不得不，必须”，可用于多种时态。I missed the train, so I had to take a taxi.Im sorry I wont go with you, Ill have to go to the bank.We dont have to install this
6、 new television set.(2)used to 表示过去常常，而现在不再有的习惯。其否定形式为: used not to, usednt (usent) to, didnt use to.I used to go to work by bus. Now I go by car.I used to collect stamps when I was a boy.J 江苏教师考试资讯、真题请点击江苏教师考试网江苏教师考试网提供江苏教师招聘和江苏教师资格考试资讯、真题资料Used they to have a lot more free time?【 动 词(四)】情态动词(1)情态动
7、词表示说话人对某一动作或状态的态度，或表示主观设想。情态动词有自己的词义，但不能单独作谓语动词，必须和不带 to 的动词不定式连用，没有人称和数的变化，常用的情态动词有 can, may, must, will, shall, should, would, need, dare. 情态动词有自己的词义，表示说话人对某一动作或状态的态度，或主观设想。如：You may go now.This bus can seat 40 people.The work must be finished as soon as possible. 情态动词不能单独作谓语，必须和不带 to 的不定式连用，没有人称和
8、数的变化。 情态动词有现在式和过去式两种形式。(2)情态动词的用法。 may 的用法a. 表示允许或征询对方的许可，有“可以”的意思。May not 表示说话人“不许可”，如：You may go now.May I use you typewrite?You may not go=I do not permit you to go.b. 在回答 may 引导的疑问句时，肯定回答用 yes, you may 否定用 No, you mustnt. No, you cant 或 No, you had better not. can 的用法a.表示能力，有“能、会、能够”的意思。b. 表示允许，
9、在口语中代替 may，有“可以”的意思。c. 表示“可能性”，常用于否定句或疑问句。The hall can hold at least 200 people.The librarian said we could take these books.Today is Sunday, he cant be at school today.J 江苏教师考试资讯、真题请点击江苏教师考试网江苏教师考试网提供江苏教师招聘和江苏教师资格考试资讯、真题资料d. can 和 be able to 的用法比较can 用来表达能力时，由于只有现在时和过去时两种形式，其他时态要用 be able to来表达。如：I
10、 can play the piano.He has not been able to finish the work in time. must 的用法a. must 表示必须，应该。如：Must I come to the party?The article must be completed before Friday.b. must 的否定形式 mustnt, 表示“不应该、不可以、禁止”。如：You mustnt get to school too late.Must I do it now? Yes, you must. No, you needntShe must have go
11、ne to Beijing.You must say sorry to me for that.You mustnt clean only your own room. need 的用法a. need 作为情态动词主要用于否定句和疑问句，较少用于肯定句。如：I neednt wear a coat. = I dont think I need wear a coat.I dont need things like that. shall用于第二、第三人称，表示说话人的意愿。如:He shall get his money.You shall do exactly as you wish.Sha
12、ll I turn on the light?Shall I open the window? would 的用法表示愿望、决心、建议或看法，如：J 江苏教师考试资讯、真题请点击江苏教师考试网江苏教师考试网提供江苏教师招聘和江苏教师资格考试资讯、真题资料I would like to go there.I promised that I would do my best.表示过去的习惯.He would often come to my house to see me.现在正值广大考生全力备考的阶段，为使广大考生在备考路上不再孤单，中公教师网愿与您一起同行，助您一臂之力！更多 2016 江苏教师招聘备考链接请点击：J
