一般现在时讲解及练习
1.一般现在时：
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。
2.构成：
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。
注意：一般现在时经常和频率副词连用。
3.我的变化--否定句、一般疑问句、特殊疑问句：
1.be 动词的变化。
否定句：主语+ be + not +其它。
如：He is not a worker.他不是工人。
一般疑问句：Be +主语+其它。
如：-Are you a student?
-Yes. I am. / No, I'm not.
特殊疑问句：疑问词+一般疑问句。如：Where is my bike?
2.行为动词的变化。
否定句：主语+ don't( doesn't ) +动词原形(+其它)。如：
I don't like bread.
当主语为第三人称单数时，要用 doesn't 构成否定句。如：
He doesn't often play.
一般疑问句：Do( Does ) +主语+动词原形+其它。如：
-Do you often play football?
-Yes, I do. / No, I don't.
当主语为第三人称单数时，要用 does 构成一般疑问句。如：
-Does she go to work by bike?
-Yes, she does. / No, she doesn't.
特殊疑问句：疑问词+一般疑问句。如：How does your father go to work?
动词第三人称单数形式构成规则
动词原形变第三人称单数的规则与发音规律同名词单数变复数大致相同，请认真观察。
1、大多数动词在词尾加“S”在清辅音后发音为[s]，在浊辅音及元音后发音为 [z]。如：
①stop－stops [s] make－makes [s]
②read－reads [z] play－plays [z]
2、以辅音字母加“y”结尾的，要先将“y”变为“i”，然后在加“es”读[iz] 如：
fly－flies [z] carry－carries [z]
study－studies [z] worry－worries
3、以“s,x, ch, sh”结尾的，在词尾加“es”，发音为[iz] 如：
teach－teaches [iz] watch－watches [iz]
4、以“o”结尾的动词，加“es”，读[z] 如：
go－goes [z] do－does [z
下面几个动词变为单数时，原词的元音部分的发音发生了较大的变化，请注意记忆。如：
1）、do [du:]－does [dz]
2）、say [sei]－says [sez]
以不发音字母“e”结尾的开音节词，如果尾音是[s]，[z]时，加“s”后字母“e”发音，与所加“s”
一起读做[iz]。如： close－closes [iz]
be 动词包括：am， is， are。第三人称单数用 is；过去式为 was；复数 are，过去式为were.
have，遇到主语是第三人称单数时，要用 has；动词 be 的第三人称单
一般现在时练习题
(一) 写出下列动词的第三人称单数形式：
drink-- go-- stay-- make-- look-- carry-- come-- watch-- plant-- fly -- do--
sit-- guess--
die--
go--
rush--
reach--
touch--
brush--
fly--
copy--
say--
run--
do--
fix--
live--
cry--
enjoy--
have--
wish--
play--
teach--
buy--
study--
(二) 用所给词的正确形式填空。
1.W hat (do)Alice find?
2.W hich toy (do) she like?
3.H e doesn’t(know)her name.
4.Where (do)Grandma live?
5.The boy (chase) it.
6.Grandma Wang (live) in Pudong.
7.When (do)he get up?
8.K itty (watch)TV everyday.
9.J ohn can’t(find) his watch.
(三) 选择题
1.Jack and her mother happy.
A.d oes
B.are
C.is
D. have
2..Her mother the beanstalk.
A.t ake
B.is take Ctakes D. taking
3.The woman the beanstalk.
A.c ut
B.cutting
C.are cut
D.cuts
4.The goose golden eggs.
A.l ay
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5.Supergirl and Superdog them.
A.s aves
B.save
C.saving
D.is saving
6.Ben a new bicycle.
A.h ave
B.has
C.are
D.were
7. A man in front of his car.
A.w alk
B.walks
C.walking
D.work
8.How it feel?
A.d oes
B.do
C.are
D.is
9.-He came early this morning, didn't he?
-Yes, he did. He often to school early.
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B. comes
C. came
D. has come
10.Ann her hair every week.
A.is going to wash
B. wash
C. washes
D. is washing
11.They usually TV in the evening.
A.watch
B. will watch
C. are watching
D. watches
12.The sun in the east and in the west.
A.raises; set
B. rise; sets
C. rises; sets
D. rises; set
13.-I usually have milk and bread for breakfast. What about you, Jim?
-So do I, but my sister .
A.hasn't
B. doesn't
C. didn't
D. won't
14.She will go if it tomorrow.
A.isn't rain
B. don't rain
C. doesn't rain
D. didn't rain
15.These little boys playing football.
A.are liking
B. like
C. likes
D. were liking
16.- he to work on foot? -Yes, he .
A.Do; go; do
B. Does; go; does
C. Is; going; does
D. Does; go; is
17.- they often these old men?
-Yes, they .
A.Do; help; are
B.Are; helping; are
C. Do; help; do
D. Are; helped; are
(四) 变否定句。
1.He wants a book.
2.Jimmy washes hands before dinner.
3.Lisa likes milk very much.
4.They walk to school.
5.Lingling and Dandan are 10 years old.
(五) 变一般疑问句并作肯定和否定回答。
1.H e wants a book.
2.Jimmy washes hands before dinner.
3.I am Chinese.
4.They walk to school.
5.Lingling and Dandan are 10 years old.
(六) 划线提问。
1.He wants a book.
2.Jimmy washes hands before dinner.
3.Lisa likes milk very much.
4.They walk to school on Monday.
5.Lingling and Dandan are 10 years old.