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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,