(共19张PPT)
答案: 1.A 2.A 3.C
1.—I forgot to bring my dictionary.Could I use yours
—Yes,you . (2014安徽)
A.can B.must C.could D.should
2.—Lingling,can I use your dictionary
—Sure.But you return it after class. (2014德州)
A.must B.can
C.may D.would
3.Some people feel sick when they read a book in a car or
on a boat. (2014梅州)
A.must B.should
C.may D.need
4.— I have lunch now,Mom
—No.You must wash your hands first. (2013 长沙)
A.Would B.May C.Ought to
5.Hi,guy!You not park your car here.It’s for our customers
only. (2013日照)
A.need B.may C.will D.can
6.—Look at the boy playing basketball on the ground.Is it George
—It be him.He told me he would play basketball after
class,but he’s not sure. (2013兰州)
A.mustn’t B.must C.can’t D.may
7.—Life gets easier with the Internet.
—That’s true! Almost everything be done online. (2014无锡)
A.can B.need C.must D.should
答案: 4.B 5.D 6.D 7.A
8.—Could you please have a walk with me
—Sorry,I .I have something important to do now.(2014泰安)
A.mustn’t B.needn’t C.can’t D.may not
9.There a girl singing next door.Can’t you hear her beautiful
voice (2014兰州)
A.must be B.must have C.can’t be D.can’t have
10.—Where is my watch I find it.
—Don’t worry.It must be somewhere in your room. (2013云南)
A.can’t B.mustn’t
C.needn’t D.shouldn’t
11.The man be my English teacher.He has gone to Canada.
(2013益阳)
A.might B.must C.can’t
答案: 8.C 9.A 10.A 11.C
答案: 12.A 13.D 14.C 15.B
12.Teenagers allowed to drive. (2013衡阳)
A.should not be B.should be not C.not should be
13.—Can I go to the park,Mum
—Certainly.But you be back by six o’clock. (2012泰安)
A.can B.may C.might D.must
14.— I do the laundry first
—No,you .You can do your homework first. (2012黄冈)
A.Must;mustn’t B.Can;mustn’t
C.Must;needn’t D.May;needn’t
15.—Have you decided which senior high school to choose
—Not yet.I go to Moonlight School. (2012南京)
A.must B.may C.need D.should
情态动词的用法
1.情态动词的类型
没有词形变化 must,should,shall,had better
有词形变化 can→could,may→might,will→would
带to的情态动词 ought to,used to,have to,be able to
双重性 need兼有情态动词和行为动词双重性
2.情态动词的基本用法
(1)can,could和be able to
can,could 分别用于一般现在时和一般过去时,没有人称和数的变化;be
able to 则可用于任何时态。当could 用于一般现在时或将来时时,表示语
气比较委婉或可能性不大。例:
Mary can play the piano.玛丽会弹钢琴。
Could you look after my cat
你可以照看一下我的猫吗
I’m sure I will be able to catch up with others.我相信我能赶上
别人。
(2)may 和might
①may意为“可以”,表示允许和征询对方许可;might语气更委婉。例:
—May I have a look 我可以看一下吗
—Yes,of course.当然可以。
②may的否定回答常用please don’t...和You’d better not...,语气强烈
时用must not。例:
—May I take the magazine out of the room
我可以把杂志带到室外吗
—No,please don’t / you’d better not / you mustn’t.不,请不要。
/ 你最好不要。/ 不准。
(3)must和have to
①must强调主观上“必须”,并且可以指现在、过去或将来,没有词形变化;
而have to 强调客观上“必须,不得不”,并按行为动词变化的要求,有各
种时态的变化形式。例:
I must finish homework first.
我必须先完成作业。
You don’t have to clean the room right now.
你不必马上就打扫房间。
②must 作“必须”讲时,可用于疑问句和肯定句,否定句常用needn’t 或
don’t have to。mustn’t表示“禁止,不许可”,语气很强。例:
—Must I clean the room now
——我现在必须打扫房间吗
—Yes,you must.(No,you needn’t./ you don’t have to.)
——是的,你必须。(不,你不用。)
You mustn’t speak to your parents like this,especially in public.
你不可以像这样和父母说话,尤其是在公共场所。
(4)should
should表示劝告、建议,意为“应该,应当”。例:
She should come to the meeting on time.
她应该按时到会。
We shouldn’t be late for class.
我们不应当上课迟到。
(5)shall
①Shall... 用于第一、三人称,表示建议或请求,意为“……好吗 ”。例:
Shall we ride our bikes to the park
我们骑自行车去公园好吗
②shall作为情态动词,用于陈述句的第二、三人称,表示说话人的意愿,有命
令、警告、强制、允许等含义。例:
You shall do as I told you.
你按照我告诉你的那样做。
(6)will和would
①will 和would作为情态动词,表示决心、意愿,意为“要……,想……”。例:
We will take a walk after supper.
晚饭后我们想散步。
He said he would do anything for me.他说愿意为我做任何事。
②will和would用于疑问句中,常用于第二人称,表示请求、许可。例:
Will / Would you please do the dishes
你可以洗一下碗碟吗
(7)need
①need 作情态动词,意为“必须,必要”,用在疑问句和否定句中,一般不用于
肯定句,肯定回答用must,否定回答用needn’t。例:
Since you are ill,you needn’t go to school today.既然你病了,今天
就不必去学校了。
—Need I turn off the light now 现在我需要关灯吗
—Yes,you must.(No,you needn’t.) 是的,关。(不,不必了。)
②need作为实义动词,后接名词、代词和不定式。例:
Do you need any help
你需要一些帮助吗
It’s very cold,you need to wear warm clothes.天气很冷,你需要穿暖
和的衣服。
情态动词表示推测和可能性
表示推测的情态动词有must(一定);can,could;may,might(可能)。具体用法如下:
1.must表示有把握的推测,只用于肯定句,不能用于否定句和疑问句。
(1)“must+动词原形”表示对目前动作的推测。例:
She must know the answer.她一定知道答案。
(2)“must+be+表语”表示对目前状态的推测。例:
Jenny must be angry with you.
珍妮一定生你的气。
(3)“must+be+动词-ing形式”对正在发生的情况进行推测。例:
Your mother must be waiting for you now.
你母亲现在一定正在等你。
(4)“must have+过去分词”表示对已发生事情的推测。例:
They must have had lunch.
他们一定吃过午饭了。
2.在肯定句中,表示对现在或将来把握不大的推测用“may(might)+动词原
形”;对过去把握不大的推测用“may(might) have +过去分词”。例:
He might have lost his keys.
他有可能丢了钥匙。
3.在疑问句中,对现在表示推测用“Can (Could)...+动词原形”;对过去表
示怀疑用“Can (Could)...have+过去分词”;在否定句中,对现在表示推
测用“can’t+动词原形”,对过去表示推测用“can’t (couldn’t)
have +过去分词”。例:
Can / Could they come to the party
他们能到聚会上来吗
Could they have taken the train here
他们是乘火车到这儿的吗
The man can’t be Mr.Li.He has gone to Canada.
那个人不可能是李先生,他已经去加拿大了。
They couldn’t have known the matter.
他们不可能知道了这件事情。
点此返回目录课案6 情态动词
1.—You be excited that you’re going back to your hometown soon.
—Yes,I can’t wait any longer.
A.shall B.can C.need D.must
2.—Must I finish my homework now
—No,you .You can go home now.
(2013 广州)
A.needn’t B.mustn’t C.shouldn’t D.can’t
3.You mustn’t go off ( http: / / www.21cnjy.com ) on your own,because you get lost in the mountains.(2013 潍坊)
A.should B.must
C.need D.might
4.— I help you
—Yes,I want a T-shirt.(2013 济南)
A.Can B.Should
C.Must D.Would
5. you please give me a hand The box is too heavy.(2013锦州)
A.Should B.Could
C.Must D.Need
6.—Dad,must we wait until the light becomes green
—Yes,I’m afraid we .That’s the traffic rule.(2013 河南)
A.can B.may
C.have to D.need
7.— I swim here
—No,you .Look at the sign“No swimming”.(2013 广安)
A.Must ; can’t B.Can; don’t
C.Can; mustn’t
8.— you sing an English song
—Yes,I can.(2013 北京)
A.Can B.May
C.Must D.Need
9.According to the ne ( http: / / www.21cnjy.com )w traffic law,everyone in a car wear the seat belt.(2013 济宁)
A.can B.may
C.must D.will
10.—Excuse me,whose book is this
—It be John’s.It has his name on it.(2013 南充)
A.must B.need
C.can’t
11.You drive your car so fast.It’s very dangerous.(2013 安徽)
A.wouldn’t B.shouldn’t
C.couldn’t D.mightn’t
12.The lady in the si ( http: / / www.21cnjy.com )tting room be over sixty.She looks so young.(2013 宿迁)
A.can’t B.must
C.may D.needn’t
13.That T-shi ( http: / / www.21cnjy.com )rt be expensive because it’s designed by a famous designer.(2013 宁波)
A.can’t B.mustn’t
C.must D.should
14.—Can I finish my homework tomorrow
— .You must finish it today (2013 成都)
A.Yes,you can B.No,you needn’t
C.No,you can’t
15.—Could I give away my old clothes to the poor children,mum
—Of course,you .I’m really happy to hear that.(2013 本溪)
A.can B.could
C.must D.can’t
答案:1.D 2.A 3.D 4.A 5.B 6.C 7.C 8.A
9.C 10.A 11.B 12.A 13.C 14.C 15.A
