unit 2 Healthy eating grammar情态动词精练

情态动词精练
江西省兴国县第三中学 常峰
一、单项选择
1.When she was your age,she could speak English very well,_____you?
A.can B.could C.couldn’t D.can’t
2.-Could I borrow your dictionary for a while?
-Yes,of course you____.
A.could B.will C.can D.should
3.-It____be John who is in the office.
-No, it____ be him .He called me from Beijing half an hour ago.
can’t ; can’t B.must; can’t C.must; mustn’t D.may;mustn’t
4.-_____you_____ jump off the wall?
-I am afraid not.
Dare;/ B.Can; dare C.Do; dare D.If ; dare
5.The woman spent as much time as she ____her sick grandfather.
A.could looking after B.could look after C.to look after D.can to look after
6.He knows the city so well.He must have been there before,____?
A.mustn’t he B.doesn’t he C.hasn’t he D.isn’t he
7.-Must I return the book in a week?
-No,you____.You can keep it for a month.
A.mustn’t B.needn’t C.don’t have to D.both B and C
8.-May I use your telephone to return a call?
-______.
A.Sorry,it’s broken B.No,you may not C.No,you don’t D.Yes ,you are
9With the help of the firefighters,all the people trapped ____escape from the burning building.
A.can B.could C.may D.were able to
10.Because of getting up too late,he____go to work without breakfast this morning..
A.must B.need C.has to D.had to
11.-____he clean the windows now?
-No,he____.He may do it next Sunday.
Must;mustn’t B.Need; wouldn’t C.Shall; needn’t D.May; don’t have to
12.Mr.Smith is always punctual for everything.How____it be that he was late for the interview.
A.should B.can C.may D.must
13.”I’m astonished,my dear,”said Mrs.Bennet,”that you____be so ready to think your own children silly.”
A.should B.might C.could D.shall
14.It’s usually very warm in our hometown in spring,but sometimes the temperature____be very low.
A.should B.can C.must D.shall
15.Since you have told him, I____tell him, need I?
A.don’t need to B.needn’t to C.needn’t D.don’t need
16.He paid for a seat,when he ____have entered free.
A.could B.would C.must D.might
17.-Where will you start your work after graduation?
-Not decided yet.I____continue my study for a higher degree.
A.need B.must C.might D.would
18.Since we are not in a hurry,we____stay here for another day so that we can do some shopping.
A.might as well as B.might as well
C.should as well as D.should as well
19.-What did you say to Alice?I saw her crying under the tree.
-It____my fault.I haven’t seen her today.
A.must have been B.should have been
shouldn’t have been D.can’t have been
20.You ____have the book when I finish it.
A.shall B.will C.would D.could
21.Oh,Richard,why____you always do the opposite of what your mother tells you?She will be sad.
A.must B.may C.will D.can
22.-Hello,____I speak to Mary?
-I’m sorry.She____come to the phone because she is having a bath.
A.can; won’t B.may;won’t C.may; can’t D.will;can’t
23.By no means___I change my mind that what you do will turn out to be successful.
A.must B.may C.shall D.can
24.We must learn from Wang Fang,____we?
A.mustn’t B.can’t C.don’t D.needn’t
25.-Do you have to leave now?
-Sorry,but I really____.
A.ought B.must C.have D.should
26The flowers are dead.We____them more water.
A.would have given B.should have given
C.will have given D.must give
27-How about paying a visit to Mrs.Li ,our former headteacher?
-Good idea.I’ll make a call to her so that she____know____to expect us.
A.shall; why B.may;when C.would;what D.will;how
28.He ought to come here early ,____he?
A.would B.should C.didn’t D.shouldn’t
29.He has enough money.You____him any.
A.couldn’t have lent B.mustn’t lend
C.needn’t have lent D.can’t have lent
30.You might teach me how to use the computer,____you?
A.might B.will C.should D.mightn’t
二、根据要求转换句型。
1.The man in a black coat over there must be Li Ping’s father.(否定句和反意问句)
否定句：__________________________________________________________
反意问句:__________________________________________________________
2.He must finish the exercises before he goes home. (否定句和反意问句)
否定句：__________________________________________________________
反意问句:__________________________________________________________
3.He may have seen the film before. (反意问句)
反意问句:__________________________________________________________
4.Dr.Lin can’t have spoken at the meeting last night. (肯定句和反意问句)
否定句：__________________________________________________________
反意问句:__________________________________________________________
5.You needn’t return the book until you finish it.(意思相同的句子)
You____ ____ ____ return the book until you finish it.
6．He can’t be very kind to you now.(根据新的时间状语改写句子)
__________________________________when you stayed with him.
7.I wish to borrow your car.(反意问句)
__________________________________________________________
8.Children mustn’t play football here.(肯定句)
肯定句：_____________________________________________________
9.The machine needs repairing. (意思相同的句子)
The machine needs____ ____ ____.
10.They have to cancel the meeting for the bad weather. (否定句和反意问句)
否定句：__________________________________________________________
反意问句:__________________________________________________________
三、根据提示完成句子(必须用上情态动词)。
1.I didn’t hear the ring.I___________________________.(一定是出去了)
2.The test was very easy.You________________________(本不必担心)
3At this time next year, the baby_____________________(将会行走)
4．There was enough time.You_________________________(本应该完成作业)
5.You didn’t call me.I____________________________.(本可以帮助你做这项工作)
6.I didn’t see her last night.She ________________________(不可能出席了会议)
7.At first,he disagreed with us,but then we____________________（能够说服了他）
8.How____you___________________!(这么粗心)
9.You________to write so carelessly.(不应该)
10.He________________________(过去常在这条河里游泳)，but the river is dry now.
四、单句改错。
It is so dark outside.She dares not go out alone.
She has to stay at home to look after her newly-born baby,hasn’t she?
The baby will can speak soon.
4.She was very sad,You ought not to hurt her feelings.
5．Linda was able to solve the problem by herself,so you couldn’t have helped her.
6.The Smiths must be asleep, for all the lights were off.
7.If it would be sunny tomorrow, we would go for a picnic.
8.You are his father,so you should take care of him.
9.He thought it may be wise to try his luck there.
10.Might that day come soon.
答案及解析：
单项选择：
1．A.要注意此题不是反意问句，故排除C和D; can you?是can you speak English very well now?的省略，问的是现在的情况，故排除B.
2.C.could在此表示委婉的语气，不表过去时态，其时态仍属一般现在时，故对其引导的问句作答应用can而不用could.
3.B.该题考查情态动词表推测的用法。Must表“一定”，只用于肯定句，其否定式是can’t,表示“一定不”。
4.A.dare既能作情态动词又能作实义动词。作情态动词时后接不带to的不定式且没有人称和数的变化，否定式为dare not,疑问式则将dare提至句首；作实义动词时，后接带to的不定式，有人称和数的变化，否定式要借助don’t,doesn’t,didn’t,疑问式则须借助do,does,did,放句首。Need 用法与dare类同。
5.A.此题极易误选B,但通过分析句子结构可以发现could属于状语从句as she could(spend),而look after属于主句，并且套用句型spend……(in)doing something.
6.C.may,can,must等词表推测意义时，其所在句子的反意部分原则上不用这些词，具体原则如下：1）如果是对现在情况的推测，则反意部分用一般现在时，动词用am,is ,are,do或does;
如果是对过去情况的推测且句中不含具体的过去的时间状语，则反意部分用现在完成时，动词用have或has;3) 如果是对过去情况的推测且句中含有具体的过去的时间状语，则反意部分用一般过去时，动词用was ,were或did.该题属于第二种情况。
7.D.对must(必须)引导的疑问句作答时，肯定用must,否定用needn’t或don’t/doesn’t have to.
8.A.对may引导的问句作答时，肯定可以用may，但否定一般不用may not,而用mustn’t（不可以，禁止）或其它符合语境的形式。
9.D.could 与was/were able to都能表示“能够”，但如果强调经过努力或克服困难而能够做成某事，则多用后者。
10.D.must表示主观愿望，而have to 表示客观要求，意思是“不得不”。
11.C.shall可与第一、三人称连用，用于征求对方的意见和指示。
12.B.can用于否定句、疑问句或感叹句中，可以表示惊异、怀疑等语气。
13.A.should在此表示一种惊异的情绪，意思是“竟会”。
14.B.can在此表示一种客观可能性，意思是“可能、也许”。
15.C.根据第4题注解，可知B,D不合语法结构,而如果选A项则与反意部分不一致。
16.A.could have done表示“（过去）本来能够……”
17.C.此题考查情态动词表推测的用法。根据Not decided yet选might表“也许，可能”。
18.B.might as well do表示“最好……”。
19.D.can’t/couldn’t have done表示对过去情况的推测，意思是“不可能”
20.A.shall用于陈述句中可以表示允诺、警告、命令、决心、强制等意思。此处表允诺。
21.C.will常与always连用，表倾向、习惯，意思是“老是，总是”。
22.C.第一空填can,may均可，但不能用will;第二空若填won’t则是强调意愿，根据语境Mary不接电话是客观条件所限，是“不能接”而不是“不愿接”。
23.C.shall在此构成将来时，同时也表示一种意愿。
24.D.must表示“必须”时，其否定式为needn’t.
25.B.根据语境，此处须填表示“必须”的词，如果选C,则缺少to.
26.B.should have done表示“（过去）本应该…”。
27.B.may表示“可以”，when to expect us表示“我们何时到达”。
28.D.oughtn’t (to)与shouldn’t 同义。
29.C.needn’t have done 表示“（过去）本不必……”。
30.B.might,may表示请求时，反意问句部分用will.
二、句型转换：
1．The man in a black coat over there can’t be Li Ping’s father
The man in a black coat over there must be Li Ping’s father,isn’t he?
2. He needn’t finish the exercises before he goes home.
He must finish the exercises before he goes home,needn’t he?
3. He may have seen the film before,hasn’t he?
4.Dr.Lin must have spoken at the meeting last night.
Dr.Lin can’t have spoken at the meeting last night,did he?
5.You don’t have to return the book until you finish it.
6.He can’t/couldn’t have been very kind to you when you stayed with him
7.I wish to borrow your car,may I?
8.Children may play football here.
9.The machine needs to be repaired.
10.They don’t have to cancel the meeting for the bad weather.
They have to cancel the meeting for the bad weather, don’t they?
三、根据提示完成句子
1．I must have gone/been out.
2.You needn’t have worried about it.
3. At this time next year, the baby will be able to walk.
4. You should have finished your homework.
5.I could have helped you with the work.
6.She couldn’t have attended the meeting.
7. .At first,he disagreed with us,but then we were able to persuade him.
8. How can you be so careless!
9. You oughtn’t to write so carelessly.
10. He used to swim in the river，but now the river is dry.
四、单句改错。
dares改为dare.情态动词没有人称和数的变化。
hasn’t改为doesn’t。have/has/had to的否定式和疑问式必须借助助动词do/does/did来表示。
can改为be able to。can只有一般现在时和一般过去时两种时态，而be able to可用于更多的时态。
hurt前加have.表示“（过去）本不该……”。
couldn’t改为needn’t.根据句意的需要。
be改为have been.此处是对过去情况的推测。
第一个would改为should.虚拟条件句中不用would,而用should表将来。
should改为ought to.should强调主观看法，ought to表示客观情况，特指按法律，规定应尽的义务。
may改为might.主从句时态须保持一致。
might 改为may.may常用来引导表祝愿的句子。