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1、七年级英语三大时态,在英语中，不同时间发生的动作或存在的状态要用不同的动词形式来表现。,时态,Tense,重点掌握,每种时态的概念、信息词、结构、句式变化、以及某些时态间的相互区别,Tense 概念,时态,一般现在时: Present Simple 概念: 表示习惯、经常性的动作,一般过去时: Past Simple 概念: 表示过去发生的动作,概念: 表示现在正在发生的动作,现在进行时: Present Progressive,各时态常用的 信息词,一般现在时:,always usually often sometimes never every day every,现在进行时：,now =
2、 at the moment at present these days Look! Listen! Its 8:00 am.,一般过去时,last +时间词：last night 时间段+ago : two days ago in +过去的年份 : in 1999 just now yesterday （morning/) in the past,判断下列信息词是属于哪种时态,last night now every day Look! yesterday often Listen! two years ago always in 1897,一般现在时 一般过去时 现在进行时,动词第三人称单
3、数的构成：,直接加-s. 以s, x, ch, sh, o结尾加-es. 以“辅音+y “结尾变y 为i再加-es.,help helps play plays teach teaches go goes relax relaxes study studies carry carries fly - flies,现在分词的构成：,直接加-ing. 以不发音字母e 结尾的动词，去e加-ing . 以重读闭音节结尾的动词，末尾只有一个辅音字母，应双写这一字母，再加-ing.,go going see seeing write writing make making take taking get
4、getting sit sitting put putting run running begin beginning swim swimming shop shopping stop stopping,过去式的构成,直接加-ed. 以e结尾的只加d. 以重读闭音节结尾的动词，末尾只有一个辅音字母，应双写这一字母，再加-ed. 以“辅音+y”结尾的变y 为i 再加-ed.,play played live lived stop stopped plan planned study studied carry - carried,（规则变化）,过去式的不规则变化,bring- buy - thi
5、nk - come- do - eat - say - find - forget - get -,give- go - have- know- am/is- make - meet - read - put - run -,see - write- sit - take- can- will - tell - begin - teach - catch -,brought bought thought came did ate said found forgot got,gave went had knew was made met read put ran,saw wrote sat to
6、ok could would told began taught caught,have - look - begin- use- shop- get- dance- study-,现在分词,第三人称单数,过去式,study- finish- have- go- do- play- watch- give-,need- stop- hope- play- try- plan- visit- like-,having looking beginning using shopping getting dancing studying,studies finishes has goes does p
7、lays watches gives,needed stopped hoped played tried planned visited liked,词形转换,改一般疑问句的方法：,首先看有无be动词、情态动词，如果有，将be或情态动词提到句首并大写，句末打问号. 如果没有be动词或情态动词，看原句的动词形式来决定借用助动词do/does/did,并且行为动词要还原。,改否定句的方法：,首先看有无be动词或情态动词，如果有，在be 动词或情态动词后面加not . 如果没有be 动词或情态动词，看原句的动词形式来决定借用助动词do/does/did,并在后面加not ,并且行为动词要还原。,He
8、 is a teacher.,2. Kangkang comes from China.,3. I usually take the bus to work.,4.They are having classes.,5.Jane played the guitar last night.,先变（一般疑问句） 再变（否定句）,Is he a teacher? He isnt a teacher.,Does Kangkang come from China? Kangkang doesnt come from China.,Do you usually take the bus to work? I
9、 dont usually take the bus to work.,Are they having classes? They arent having classes.,Did Jane play the guitar last night? Jane didnt play the guitar last night.,句型变化操练,小小测试,判断时态形式：,He always likes playing the piano.( ) We are having an English classes now.( ) They often go home late.( ) Lucy danc
10、ed the disco at the party last night.( ) I liked go to the zoo when I was young.( ) My teacher is friendly to us.( ) Look! They are playing football.( ) She was born in 1990.( ) I lost much money last night.（ ）,A.现在进行时 B.一般现在时 C.一般过去时,A,B,C,A,B,B,C,C,C,一用be动词的适当形式 填空。 1. I a student . You a teacher
11、. 2. She my friend. 3. you Li Fen ? No, not . 4. Mr. green very busy yesterday? Yes , he . 5. He cant at home . 6. Comedy very interesting . 7. thrillers very scary ? 8. You and I good friends . 9. His friends very funny. 10. The twins very happy because they went to a movie . 11. The girl in red cl
12、othes my sister .,am,are,is,Are,Im,Was,was,be,is,Are,are,are,were,is,Exercises,二、用所给动词的适当形式填空。,1. Listen! Mary _ ( sing) now. 2. A young man _ (run) on the playground now. 3. My mother _(watch) TV play every day. 4. Old Bush _(visit) China again last month. 5. I _ (play) sports three times a day. 6.
13、 Look! Lucy and Lily _(read) books. 7. There _(is) a football match yesterday afternoon. 8. Our class _( go) to the zoo three days ago.,is singing,is running,watches,visited,play,are reading,was,went,三单项选择 1. She _ this book last week. ReadB. readsC. readedD. is reading 2. He _ English very well. A.
14、 tellsB. talksC. speaksD. says 3. I dont think hes so great, but my mom _. do B. doesC. is D. are 4. Where _ your English teacher from? A. does B. is C. do D. are 5. Tom can _ some vegetables at the market. A. buysB. buyingC. buyD. to buy 6. Whats your hobby? My hobby is _ model plane. A. makingB. makeC. making D. made 7. The first class _ at 8:00 am . A. beginB. is begin C. beginsD. is beginning 8. .-_you _a book? -Yes, I am. A. Do, read B. Are ,read C. Are ,reading D. Are ,looking,Goodbye,
