英语语法:一般现在时

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一般现在时一、概念。

A.表示事物或人物的特征、状态。

e.g. The sky is blue.I am a student.B.表示经常性或习惯性的动作。

e.g. I get up at six every day.She likes singing.C.表示客观现实或规律。

e.g. The earth goes around the sun.二、标志词Jack always walks to school.Tony watches TV every night.Lingling usually studies English in the morning.频度副词:always, sometimes, usually, often, on Sunday, every day/ week/month.三、构成A. be 动词:主语+be(am,is,are)+其它。

e.g. I am a boy.He is a doctor.You are a student.记忆小tip我用am,你用are,is 连着他,她,它;单数名词用is,复数名词全用are。

B.行为动词:主语+行为动词(+其它)。

e.g. We study English.Jack walks to school every day.想一想:第一个句子和第二个句子的动词形式有什么不一样?为什么会这样呢?◎当主语为第三人称单数(he, she, it 等)或单数人名时,要在动词后加"-s", "-es", 或“改y 为ies”。

e.g. Mary likes Chinese.Tony watches TV every night.Lingling studies English every morning.观察上面三个例句,你能总结出行为动词变成第三人称单数形式的规则吗?行为动词第三人称单数变化动词规则:1.一般情况下,直接加-s。

cook-cooks,milk-milks2.以s. x. sh. ch. o 结尾,加-es。

guess-guesses, wash-washes, watch-watches, go-goes3.以“辅音字母+y”结尾,变y 为i, 再加-es。

study-studies carry-carries注意特殊变化:have----has do----does go----goes四、句型1.be 动词的变化1)否定句:主语+ be(is, am, are)+ not +其它。

eg:He is not a worker.2)一般疑问句:Be(is, am, are)+主语+其它。

eg:-Is he a worker?-Yes. he is. / No, he isn’t.3)特殊疑问句:疑问词+一般疑问句。

eg:What’s he?2.行为动词的变化1)否定句:主语+ don't( doesn't ) +动词原形(+其它)。

e.g.I don't like bread.He doesn’t like bread.当主语为非三单时,要用don’t 构成否定句,后面动词必须用原形。

当主语为三单时,要用doesn't 构成否定句,后面动词必须用原形。

2)一般疑问句:Do(Does ) +主语+动词原形+其它?e.g. -Do you often play football?e.g. - Does she go to work by bike?-Y es, I do. / No, I don't.-Y es, she does. / No, she doesn't.当主语为非三单时,要用do 构成一般疑问句,后面动词必须用原形。

当主语为三单时,要用does 构成一般疑问句,后面动词必须用原形。

专题训练:一般现在时一、写出下列动词的第三人称单数。

drink _________ go ________ stay ________ make ________look _________ have________ pass________ carry ________come_________ watch_______ sing________ fly __________study_________ brush________ do________ teach_________see___________ like_________ guess______ wash_________二、选择题。

1.They _______ TV in the evening. They do their homework.A. are watchingB. can’t watchingC. don’t watchD. don’t watching2.He said the sun _______ in the east and _______ in the west.A. rose; setB. rises; setsC. rises; setD. rise; sets3.Wang Mei______music and often_______to music .A. like; listenB. likes; listensC. like; are listeningD. liking; listen4.Jenny _______ English every evening.A. has studyB. studiesC. studyD. studied 5.Tom is a worker. He _______ in a factory. His sisters _______ in a hospital.A. work; workB. works; workC. work; worksD. works; works6.We _______ our English teacher and often _______ to her .A. like; listenB. likes; listensC. like; are listeningD. are liking; listen7.She _______ up at six in the morning .A. getB. getsC. gettingD. is getting 8.On Sunday he sometimes _______ his clothes and sometimes _______ some shopping.A. wash; doB. washes; doesC. is washing; is doingD. washed; did9.Jenny _______ in an office. Her parents _______ in a hospital.A. work; worksB. works; workC. work; are workingD. is working; work10.One of the boys _______ a black hat.A. haveB. there isC. there areD. has三、用括号内动词的适当形式填空。

1、We often _______ (play) on the playground.2、He usually _______ (get) up at six o’clock.3、_______ you _______ (brush) your teeth every morning?4、What _______ (do) he usually _______ (do) after school?5、Danny _______ (study) English, Chinese, maths, science and art at school.6、Mike sometimes _______ (go) to the park with his sister.7、At eight at night, she usually _______ (watch) TV with his parents.8、_______ Mike _______ (read) English every day?9、How many lessons _______ your classmates _______ (have) on Monday?10、What time his mother _______ (do) the housework?11、He often _______ (have) dinner at home.12、Daniel and Tommy _______ (be) in Class One.13、Who _______ (dance) the best in your class?14、There _______ (be) a football match on TV every morning.15、Do they _______ (watch) the World Cup?四、句型转换。

(1)He has a brother and a sister . (改为一般疑问句)_______ he ______ any brothers or sisters ?(2)Open the windows .(改为否定句)_______ ________ the window .(3)She is watching cartoons at home now .(改为一般现在时)Sometimes she ________ ________ at home .(4)Jim is good at PE . (改为同义句)Jim _______ _________ in PE.(5)We saw a play last Sunday . (用tomorrow 替换last Sunday)We are _________ _________see a play tomorrow .五、连词成句。

1、play,every,I,guitar,day(。

)_____________________________________________2、little,the,be,boy,heavy(?)_____________________________________________3、read,Mary,books,usually(。