知识要点
动词表示人或事物的动作或状态。
根据其在句中的功能,动词可分为四类,分别是实义动词(指某个具体的静态如:think, love 等或动态如:run, walk 等)、系动词(常用的是be, feel, get, look, taste等)、助动词(常用的是do, does, did等用来构成否定句及疑问句)、情态动词(常用的有can, may, must, shall, should等,情态动词后一定要跟动词原形)。
1) 动词的基本形式
绝大多数动词都有五种基本形式:动词原形、一般现在时第三人称单数、现在分词、过去式和过去分词。
A. 第三人称单数形式的构成
一般现在时主语是第三人称单数时,谓语动词后要加s或es,其变化规则与名词变复数的方法大体相同:
1. 一般情况下只在动词后加s,如work-works, write-writes.
2. 以o,s, x, sh, ch结尾的动词,后加es,如guess-guesses, mix-mixes,
finish-finishes, catch-catches.
3. 以辅音字母加y结尾的动词,改y为i加es,如study-studies.
注:不规则变化的有have-has
B. 现在分词的构成
1. 一般情况下在动词后加ing,如study-studying, work-working.
2. 以不发音的字母e结尾的动词,先去掉e再加ing,如write-writing,
move-moving.
3. 以一个元音字母和一个辅音结尾的重读音节结尾的动词,要双写末尾一个辅音字母,再加ing,如get-getting, begin-beginning.
4. 以ie结尾的名词,一般将ie改为y,再加ing,如lie-lying, die-dying, tie-tying.
C. 过去式和过去分词的构成
1. 一般情况直接加ed,如ask-asked, work-worked.
2. 以不发音的e结尾,只加d,如love-loved, dance-danced.
3. 以辅音字母加y结尾,把y变为i加ed,如try-tried, study-studied.
4. 以一个元音字母和一个辅音结尾的重读音节结尾的动词,先双写末尾一个字母,再加ed,如stop-stopped.
练习:
I. 用be 动词的适当形式填空
1. __________ your father a worker﹖ Yes, he __________.
2.They __________ in the classroom.
3.Where __________ my books﹖
4.These ___________her pears.
5.How much _________the T-shirt?
6.How much __________ the socks?
7.Our mother _________forty last year.
8.You can _________ in our school music club.
9.Let's ___________friends.
10.He and I _________friends.
11.Someone __________ in the room.
12. There ____ some apples on the table yesterday.
II.划出每句中正确的词
1.(Is/Are)his eraser on the sofa?
2.(Where/What)are your baseball?
3.(Do/Does)Mary have a clock?
4.(Are/Do)they want to see a movie?
5.(Is/Can)she play the violin?
6.I (don't/ doesn't)like hamburgers.
7.Why does Alice (likes/like)music?
8.Who (am/is) your father?
9.(What/What's) her favorite subject?
10.How much (are/is) her socks?
11. I (am, is, was, were) busy last week.
12. Tom and I (am, are, was, were) late for school yesterday.
13. I (walk, walks, walked, walking) to school last Saturday.
14. Rose (does not, did not, ) visit her uncle last month.
15. There (is, was, are, were) a lot of people over there ten years ago.
III.写出下列动词的第三人称单数、现在分词和过去式。
如:look - looks - looking- looked
drink_________ _________ _________
go _________ _________ _________
stay _________ _________ _________
make _________ _________ _________
teach_________ _________ _________
ride _________ _________ _________
have_________ _________ _________
pass_________ _________ _________
carry _________ _________ _________
come_________ _________ _________
watch_________ _________ _________
plant_________ _________ _________
fly_________ _________ ____________
study_________ _________ _________
brush_________ _________ _________
read_________ _________ _________
run _________ _________ _________
write_________ _________ _________
swim_________ _________ _________
get_________ _________ __________
say_________ _________ __________
take _________ _________ _________
see_________ _________ __________
begin_________ _________ _________
dance_________ _________ _________
IV.用所给词的正确形式填空。
1. Let me _______ (help) you find your purse.
2. Would you like__________(buy) things for New Year's Day?
3. I like __________( make) kites.
4. He can________ (skate) better than ME.
5. You must _______( listen) to your teacher in class.
6. They enjoy________(play) basketball.
7. She wants________(watch) cartoons.
8. It's time for us ________( read) books.
知识要点
2). 一般现在时
一般现在时的用法:
1.表示事物或人物的特征、状态。如:The sky is blue.天空是蓝色的。
2.表示经常性或习惯性的动作。如:I get up at six every day.我每天六点起床。
3.表示客观现实。如:The earth goes around the sun.地球绕着太阳转。
4. 有时这个时态表示按计划、规定要发生的动作(句中都带有时间状语),但限于少数动词,如:begin, come, leave, go ,arrive, start , stop, return, open, close等。 如:The meeting begins at seven.会议7点开始。
5.在时间状语从句和条件状语从句中,用一般现在时表示将来。如:
If you come this afternoon, we'll have a meeting.如果你今天下午来,我们将开会。
一般现在时的结构:
1. be动词:主语+be(am ,is, are)+其它。如:I am a boy.我是一个男孩。
2.行为动词:主语+行为动词(+其它)。如:We study English.我们学习英语。
当主语为第三人称单数(he, she, it)时,要在动词后加"-s"或"-es"。如:Mary likes Chinese.玛丽喜欢汉语。
一般现在时常用的时间词:often, usually, sometimes, every day(week, year...)等。
练习:
I.用括号内动词的适当形式填空。
1. He often ________(have) dinner at home.
2. Daniel and Tommy _______(be) in Class One.
3. We _______(not watch) TV on Monday.
4. Nick _______(not go) to the zoo on Sunday.
5. ______ they ________(like) the World Cup?
6. What _______they often _______(do) on Saturdays?
7. _______ your parents _______(read) newspapers every day?
8. The girl _______(teach) us English on Sundays.
9. She and I ________(take) a walk together every evening.
10. There ________(be) some water in the bottle.
11. Mike _______(like) cooking.
12. They _______(have) the same hobby.
13. My aunt _______(look) after her baby carefully.
14. You always _______(do) your homework well.
15. I _______(be) ill. I'm staying in bed.
16. She _______(go) to school from Monday to Friday.
17. Liu Tao _______(do) not like PE.
18. The child often _______(watch) TV in the evening.
19. Su Hai and Su Yang _______(have) eight lessons this term.
20.-What day _______(be) it today?
-It's Saturday
II. 改错(划出错误的地方,将正确的写在横线上)
1. Is your brother speak English? __________________
2. Does he likes going fishing? __________________
3. He likes play games after class. __________________
4. Mr. Wu teachs us English. __________________
5. She don't do her homework on Sundays. _________________
知识要点
3). 现在进行时
现在进行时的用法:
.现在进行时表示现在正在进行或发生的动作,也可表示当前一段时间内的活动或现阶段正在进行的动作。
现在进行时的结构: be+动词ing.
现在进行时常见的标志词:now, Look! Listen!
现在进行时还可以表示将来.如:
He is flying to Beijing tomorrow.他明天将乘飞机去北京。
练习:
I.用所给的动词的正确形式填空:
1.The boy __________________ ( draw)a picture now.
2. Listen ! Some girls _______________ ( sing)in the classroom .
3. My mother _________________ ( cook )some nice food now.