四大时态复习1. 一般现在时（1）一般现在时的构成（肯定句）☆ be动词：主语+be(am,is,are)+其它。
如：I am a boy.我是一个男孩。
☆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。
（2）一般现在时的变化☆ . 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?☆ .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+s的变化规则1．一般情况下，直接加-s，如：cook-cooks, milk-milks2．以s. x. sh. ch. o结尾，加-es，如：guess-guesses, wash-washes, watch-watches, go-goes 3．以“辅音字母+y”结尾，变y为i, 再加-es，如：study-studies2. 现在进行时（1）一般现在时的构成：be(am,is, are)+ 动词的ing形式。
如：I am reading. 我正在读书（2）现在进行时的否定句在be后加not，即be(am,is, are) + not + 动词的ing形式。
如：She is not doing her homework now. 她现在没有做作业。
（3）现在进行时的一般疑问句把be动词调到句首，即Be(am,is, are) + 人+ 动词ing形式。
如：Are you drinking milk now? 你现在在喝牛奶吗？（4）现在进行时的特殊疑问的基本结构为：疑问词+ be + 人+ 动词ing?如：Where are you going? 你现在去哪？但who当主语时其结构为：Who + be + 动词ing?如：Who is talking to you? 谁在和你说话？*动词加ing的变化规则1．一般情况下，直接加ing，如：cook-cooking2．以不发音的e结尾，去e加ing，如：make-making, taste-tasting3．如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running, stop-stopping3. 一般将来时（1）一般将来时基本结构：①be going to + do（动词原形）；②will+ do（动词原形）. （2）[否定句]：在be动词（am, is, are）后加not或情态动词will后加not成won’t。
结构为：be(am, is, are) + not + 动词原形will not + 动词原形(will not = won’t)例如：①I’m going to have a picnic this afternoon.→I’m not going to have a picnic this afternoon.②I will go shopping this weekend.→I will not go shopping this weekend.= I won’t go shopping this weekend.（3）[一般疑问句]：be或will提到句首，some改为any, and改为or，第一二人称互换。
例如：①We are going to go on an outing this weekend.→ Are you going to go on an outing this weekend?② I will play football tomorrow afternoon.→ Will you play football tomorrow afternoon?（4）[特殊疑问句]①问人用Who例如：I’m going to New York soon. →Who’s going to New York soon.②问干什么用What …do.例如：My father is going to watch a race with me this afternoon.→What is your father going to do with you this afternoon.③问什么时候用When.例如：She’s going to go to bed at nine. →When is she going to bed?4. 一般过去时（1）．[肯定句] be动词在一般过去时中的变化：☆ am 和is在一般过去时中变为was。
（was not=wasn’t）☆ are在一般过去时中变为were。
（were not=weren’t）行为动词在一般过去时的句子中要变成过去式（一般是在句子后面加ed）（2）[否定句]：be动词变成was not(wasn’t) 或were not (weren’t)如：He wasn’t a teacher two years ago.didn’t +动词原形如：Jim didn’t go home yesterday.（3）[一般疑问句]有be动词的一般疑问句把was或were调到句首。
如：Were you a teacher two years ago?句中没有be动词的一般过去时的句子,在句首加did，句子中的动词过去式变回原形。
如：Did Jim go home yesterday?（4）[特殊疑问句]：①疑问词+did+主语+动词原形？如：What did Jim do yesterday?②疑问词是who时：疑问词+动词过去式？如：Who went to home yesterday?* 动词过去式变化规则：☆．一般在动词末尾加-ed，如：pull-pulled, cook-cooked☆．结尾是e加d，如：taste-tasted☆．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped☆．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied☆．不规则动词过去式：am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took,run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode,speak-spoke, sweep-swept, swim-swam, sit-sat【随堂练习】一、写出下列动词的第三人称单数drink ________ go _______ stay ________ make ________ look _________ have_______ pass_______ carry ____ come________ watch______ plant_______ fly ________study_______ brush________ do_________ teach_______二、按照要求改写句子1. Daniel watches TV every evening.(改为否定句)___________________________________________________2. I do my homework every day.(改为一般疑问句，作否定回答)________________________________________________________3. She likes milk.(改为一般疑问句，作肯定回答)___________________________4. I like taking photos in the park.(对划线部分提问)________________________________________________________5. John comes from Canada.(对划线部分提问)___________________________________________________三．写出下列动词的现在分词：play________ run__________ swim _________make__________ go_________ like________ write________ _ski___________ read________ have_________ sing ________ dance_________ put_________ see________ buy _________ love____________ live_______ take_________ come ________ get_________ stop_________ sit ________ begin________ shop___________四、句型转换：1. They are doing housework .(改成否定句)_____________________________________________________________2．The students are cleaning the classroom . ( 改一般疑问句并作肯定和否定回答)__________________________________________________________________________________________________________________________________3．I’m playing the football in the playground .(对划线部分进行提问)_________________________________________________________________4．Tom is reading books in his study . (对划线部分进行提问)_________________________________________________________________五．填空。