Unit8情态动词表推测精讲精练 人教版英语九年级.docx

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1、2021人教版英语九年级Unit8情态动词表推测精讲精练1， 概述：情态动词除了常规的用法，推测的用法也是常考点。本单元我们学习的表示推测的情态动词有：can,could,may,might,must。2， 情态动词表示推测的意义和用法：1. 肯定句：must 一定 表示有把握的肯定推测 may/might/could 也许、可能 表示没有把握的推测2. 否定句:cant/couldnt 不可能 表示有把握的否定推测 may not/might not可能不 表示不太有把握的否定推测3. 疑问句：can/could 可能 表示推测例句： He must be tired after the l

2、ong trip.长途旅行他一定累坏了。 She may be in the office.她也许在办公室。 That man cant be our new teacher. He is much shorter.那个人不可能是我们新来的老师。他矮的多。 What could it be?它会是什么呢？注意：（1）情态动词表示推测时，无语态变化区别，只有语气差别。从强到弱依次是：must>can>could>may>might (2)含有must的句子表示推测时，变为否定句时，用cant。三，不同形式的情态动词表示不同的意义： 1.情态动词+动词原形：表示对现在事情的

3、推测。 2.情态动词+be+doing:表示对正在发生的事情的推测。 3.情态动词+have+过去分词:表示对过去情况的推测。如：The ground is wet. It must have rained last night.地面是湿的。昨晚一定下雨了。 精选习题练习1， 单项选择。1. -Wow.another gift.Whats in the box?-Im not sure.It_be a toy doll. A.may B.must C.will D.should2. -Will you answer the door?It_be mother.-Sorry,I_.Im busy

4、. A.may,mustntB.can,cantC.may,cantD.can,mustnt3. Look!The light in the office is still on.Mr Brown_be at work.A. mustB.canC.needD.could4. The man_be a doctor in this hospital,but I am not sure.A. mustB.wouldC.canD.might5. I_be late,so dont wait for me to start the meeting.A. mustntB.needntC.needD.ma

5、y6. -How delicious the food is! Did your mother cook it? -It_be her.She has been in a poor countryside to help the people there. A.cantB.wontC.mustntD.neednt7.-Whose book is this?-It_be Lucys.Her name is on the cover.A.mustB.cantC.needD.mustnt8.There is a knock at the door.It_my sister.Its time for

6、her to be back home.A.may beB.may not beC.must beD.mustnt be9.From the top of the hill,people_enjoy the sight of the garden.A.have toB.needC.shouldD.can10.Dont worry.Our school has realized the problem.Im sure there_be good news for us soon.A.canB.mustC.shouldD.need二，用must,may,might,cant填空。1.The bea

7、utiful dress_be Lauras. It is too long.2.The soccer ball_be Toms or Mikes.They both like playing soccer.3.The storybook_be his.It has his name on it.4.-Where is Amy?-She_be in her room,but Im not sure.5.I cant find my homework.It_be left at home.三，根据短文内容，从方框中选择恰当的情态动词填空。可重复使用。may might must cant cou

8、ld Two policemen were having a cup of coffee at five,as they usually did,when the doorbell rang. “That_be Mrs Brown.I was expecting her this evening,”said one policeman.“No,it_be her.She called this morning and said she would not be able to make it this evening.She also said she _come tomorrow eveni

9、ng,but she would call again anyway to confirm(确认) it,”replied the other policeman.“Well,thats very strange.Mrs Brown_have called this morning because I was with her all day till we left for lunch.It_have been someone else pretending(假装) it was her.” Thats to say,Mr Brown_be in danger now.四，中考真题集锦（20

10、21吉林）1.-Whose dictionary is this? -It_be Jeffs.Look! His name is on Page One. A.mustB.needC.cant (2021新疆）2.-I saw Mr Li in his office just now. -No,it_be him.He has_Guangzhou and will be back in two days.A. mustnt,gone to B.mustnt,been toC.cant,been to D.cant,gone to (2020福建）3.-Is this book Lindas?-

11、It_be hers.Sandys name is on the cover. A.cantB.mustntC.neednt (2020怀化)4.-Wheres Jane?-Im not sure.She_in the library. A.might beB.must beC.cant be (2020滨州）5.-On my way to the bookstore,I saw Mary hanging out with her friends. -It_be her.She has gone to Beijing.A. cant B.mustntC.mightD.could 习题答案一，1-5ACADD 6-10AACDB二,1.cant 2.may/might 3.must 4.may/might 5.may/might/must三,1.must 2.cant 3.might/could 4.cant 5.must 6.must四，1-5ADAAA