内容正文:
情态动词
两个原形:
1. 情态动词没有人称和数的变化通常用原形。
2. 情态动词后面必须跟动词原形。
常用的情态动词: 1. can (could)
① 能够,会(表能力),否定为can’t不能够,不会.
I can ride a bike. My sister can’t swim.
② 可以(表许可)=may ;否定为can’t不可以.
--Can I use your bike? --Sure. Here you are.
③ 在疑问句中表推测.
Someone is knocking at the door. Who can it be?
2. may (might)
①可能, 也许(不太有把握的推测)=could
He may be in the classroom, but I am not sure.
②可以 (表许可) 否定为mustn’t不准,禁止. 或can’t不可以
--May I smoke here?
--No, you mustn’t.
3. must
①一定, 必须(表示命令),否定为 needn’t 或don’t have to.
-- Must I finish his homework today?
--No, you needn’t. / don’t have to.
②肯定(表十分有把握的推测), 否定为can’t不可能
The book must be Tom’s. It can’t be Li Lei’s because Li Lei is too young to read a book.
4. need需要, 必需
-- Need I clean the room now?
-- Yes, you must. (不用need)
/ No, you needn’t.
( ) 1. She is 6 years old. She can _______ herself.
A. dress B. dresses
C. dressing D. dressed
( ) 2. You have worked all day. You must______.
A. tired B. be tired
C. are tired D. being tired
( )3.Mary _____ be in London because I saw her
in town just now.
A. mustn’t B. isn’t able to
C. can’t D. may not
( )4. She looks so sad. She ___ unhappy. A. can be B. should be
C. must be D. may be
( ) 5. You _____ be tired; you have
been working for so long a time
A. may not B. must
C. can’t D. mustn’t
( ) 6. John___ come to see us tonight,
but he isn't very sure yet.
A. can B. may
C. has to D. must
( ) 7. This shirt _______Tim’s. It’s too
long for him.
A. may be B. must be
C .can’t be D. could be
( ) 8. You ______be careful with your
homework. You got all your answers right.
A. will B. can
C. may D. must
( ) 9. She doesn’t look like Mary at all.
She ______ be her sister.
A. must B. would
C. can’t D. may
( ) 10.—Where is the teacher?
---I’m not sure. She _____ in her office.
A .must be B. can’t be
C. might D. might be
( ) 11 .Look! He is running so fast. He must ______ to catch a bus.
A. be run B. running
C. be running D. runs
( ) 12. Class 3 won the football match!
_______ it be true?
A. May B. Must
C. Will D. Can
( ) 13. -- _____ I get up at six tomorrow morning?
–No, you needn’t.
A.May B.Can
C.Must D.Could
( ) 14. _______ I use your telephone?
--Sure. Here you are.
A.May B.Must
C.Should D.Could
( ) 15. I am thirsty. _______ I have something to
drink?
A.Can B.Must
C.Do D.Need
( ) 16. –Can you ride a horse?
--No, I _______.
A.may not B.can’t
C.needn’t D.mightn’t
( ) 17. --- Must we do it now?
--- No, you _______.
A. won’t B. needn’t
C. can’t D. don’t
( ) 18.--Need I put the desk here?
--- Yes, you _____. It should be put here.
A. must B. needn’t
C. need D. mustn’t
( ) 19. --- May I go out to play now, Mum?
-- No, you _____. You should do your homework first.
A. must B. wouldn’t
C. can’t D. may not
( ) 20. The bus had left, so we _____ walk home.
A. had to B. must
动词的各种时态
1. 一般现在时
2. 一般过去时
3. 现在进行时
4. 过去进行时
5. 一般将来时
6. 现在完成时
知识目标
1.掌握六种时态表示的意义。
2.掌握六种时态的结构。
3.掌握六种时态的动词的变化形式。
4. 掌握六种时态常见的暗示词。
完成下列题目,总结其时态及用法
1.He _______ (watch) TV once a week.
2.I´ll tell him about it when he ______ (come) back.
3.I´m going to listen to the radio. Please ________ (not talk) any more.
4.Mary must _______ (look) after her little sister because she is too young.
watches
comes
don’t talk
look
以上试题用的是一般现在时,你知道它的用法、构成、常见暗示词是什么呢?
She always ____up at six.
I _______ television every day.
一般现在时
考点一:表示总是的、经常性的或者习惯性的动作。
gets
watch
The moon ______ round the sun.
The world _____round.
goes
is
考点二:对客观事实的、普遍性的、自然现象的陈述。
The old man ______takes a walk at six every day.
考点三:常见的暗示词有 often, usually, sometimes, always, every day, once a week…
注意:时刻表用一般现在时,而不用将来时.
always
It ______in the north.
She _____to school by bike.
The boy ______hard all the year.
考点4:动词第三人称单数变化
1)一般动词在末尾加-s,
如help- helps.
2)以字母S,X,Ch,Sh结尾加-es,
以O结尾的动词也加es。go-goes
do-does.
3)以辅音字母加y结尾,把y改为i再
加es,如fly-flies.
4)动词have的第三人称单数为has.
5)be动词的一般现在时有am,is,are.
snows
studies
goes
肯定句:
I watch television every day.
否定句:
I don’t watch television every day.
疑问句:
Do you watch television every day?
Yes,I do/No, I don’t.
考点5:各种句式的转换
请认真完成下列题目,总结其时态。
1.I______(have) an exciting party last weekend.
2. ____ she ________(practice) her guitar yesterday?
3.What_____Tom____(do) on Saturday evening?
He_____(read) an interesting book.
4They all____(go) to the mountains yesterday.
5.She________(not visit) her aunt last weekend.
had
Did
practice
did
do
read
went
didn’t visit
同学们,以上句子用的是什么时态呢?它表示的意义,它的用法以及动词的变化你能说出来吗?
一般过去时
完成下列句子
I ______ to school yesterday.
I ______ a new car three days ago.
I often _____ up at 6:00 last year.
考点一:一般过去时表示一个动作或情况
在过去某个的时间开始和结束.
walked
bought
got
也表示过去经常性的动作或情况。
They went to school by bike yesterday.
She was 14 years old last year.
Tom got a present when he was a child.
考点二:
常见的暗示词有:just now, …ago, in 1980, last month, this morning, yesterday, the other day, last night, used to, at ten o’clock, yesterday evening, last year, last week …
注意:表客观真理的不用过去
考点三:
动词过去时的构成规则:
1)一般在动词词尾加ed构成。
2)以不发音字母e结尾的动词加d.
3)以辅音字母加y结尾的动词,把y改为i再加ed.
4)重读闭音节词,先双写末尾字母再加ed.
5)不规则动词的过去式见发的不规则动词表,要求背过。
认真完成下列题目,总结其时态。
1. ____ (be) you waiting for a bus now?
2. Don´t speak loudly . The baby ________ (sleep).
3. Listen! The boy _______ (sing) an English song.
4.Look!They ________(play) basketball.
以上句子用的是什么时态呢?它表示的意义、它的用法、动词的变化你能说出来吗?
Are
is sleeping
is singing
are playing
现在进行时
考点一:现在进行时表示一项活动在说话时(或较长时间)正在进行。
例如:
John and Mary __________ on the phone.
are talking
考点二:现在进行时中动词形式:
am
is + - ing
are
动词ing的构成
1)一般在动词原形末尾加ing.
2)以不发音的字母e结尾的动词,先去e再加ing.
3)以一个辅音字母结尾的重读闭音节词,先双写这个辅音字母,再加ing.
考点三:常见的暗示词有now, at present, at the moment, these days, from three to five, look, listen.等
When are you leaving?
=When will you leave?
I am coming to help you.
考点四:进行时的将来用法:
认真完成下列题目,总结其时态
1. My brother came into the bedroom while I ___________ (dance).
2. ____he ______ (lie) on the ground at nine yesterday evening?
3. What ____ Jim ______ (write) when the teacher came in?
4. The Reads __________ (not have) lunch when I got to their house.
were dancing
Was
lying
was
writing
weren’t having
以上句子用的是什么时态呢?你能说出它表示的意义、它的用法以及动词的变化形式吗?
过去进行时
考点一:表示过去的某个瞬间正在进行或发生的动作和状态。
过去进行时的构成 :
was/were + - ing
考点二:常见的暗示词:then, at that time, at this time yesterday, at five yesterday, when, while.
They were watching TV at that time.
She was having lunch when I saw her.
Liming was doing his homework when his mother got him.
认真完成下列练习,总结其时态
1. There __________ a meeting tomorrow afternoon.
A. will be going to B. will going to be
C. is going to be D. will go to be
2. Charlie ________ here next month.
A. isn’t working B. doesn’t working
C. isn’t going to working D. won’t work
3. He ___ very busy this week, he _____ free next week.
A. will be; is B. is; is
C. will be; will be D. is; will be
以上句子用的是什么时态呢?你能说出它表示的意义、它的用法以及动词的变化形式吗?
一般将来时
I will go home next month.
We are going to have a picnic this summer.
He is leaving for Shanghai tomorrow.
考点一:表示在将来某个时间要发生的动作或者存在的状态。
考点二:常见的暗示词有tomorrow, tomorrow morning, at seven o’clock, next year, next Sunday morning, from now on, in a few years, in the future…
考点三:基本结构:will/shall+do
be (is/am/are) going to
be (is/am/are) + doing
认真完成下列题目,总结其时态
1- The plane is leaving right now, but Jim hasn't arrived yet.
- Well, he said he _____here on time
A. came B. would come C. can be D. will be
2. Li Ming said he _____happy if Brian _____to China next month.
A. as; come B. was; would come
C. would be; came D. will be; come
3.Jenny said she _____her holiday in China.
A spent B. would spend
以上句子用的是什么时态呢?你能说出它表示的意义、它的用法以及动词的变化形式吗?
过去将来时
考点:表示对于过去某一时间而言将要发生的动作或存在的状态。
would+do 注:would用于各种人称。
was /were going to + do
完成下面巩固练习
---Can I join the club, Dad?
---You can when you ___ a bit older.
get
will get
C. are getting
D. will have got
---Do you know when she ___?
---No, but I’ll tell you as soon as she ___.
will come; comes
comes; will come
will come; will come
comes; comes
条件状语从句中按照主(句)将(来时)从(句)现(一般现在时)的规则选用时态。
We were all surprised when he made it clear that he ___ office soon.
leaves
would leave
left
had left
同学们:时态的学习看起来复杂,其实只要把握住动作或者状态发生的时间以及人称单复数等要素就可以很容易作对题目。加油!
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