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1、四种时态(一般现在时、一般过去时、一般将来时、现在进行时)1 一般现在时。主要描述经常会发生的动作、状态或不变的真理。（1）标志词：always, usually, often, sometimes, hardly, ever, never; every second / hour /day / year / Friday/ June;once a week, twice two weeks;（2） 结构组成：主语+be+名词（形容词） I am a student. He is tall.否定句：在be 后加not I am not a student. He is not tall.疑问句
2、：be 动词提前到第一位。 Are you a student? Is he tall? Yes, I am. / No, I am not.Yes, he is. / No, he isnt.主语+动词+地点+时间 We go to school on Monday. He goes to the park on Sunday.否定句：主语+dont/doesnt+动词原形+地点+时间 We dont go to school on Monday. He doesnt go to the park on Sunday.疑问句：在句首加do或does Do you go to school o
3、n Monday? Yes, we do./ No, we dont. Does he go to the park on Sunday? Yes, he does./ No, he doesnt.（3） 动词三单变化： 在原单词末尾加s , 如：like likes 单词以o, sh, ch, s, x 结尾加es, 如：go goes 单词末尾为辅音+y结尾去y加ies 如：study- studies2. 现在进行时：主要叙述正在发生的事情。（1）标志词：now，rightnow, atpresent，atthemoment,atthistime,thesedaysLook!，Liste
4、n! .oclock（2）结构组成：主语+be +动词ing形式 I am reading English. They are swimming. He is playing football.否定句：在be后加notI am not reading English.They are not swimming.He is not playing football.疑问句：将be 放到第一位。Are you reading English? Yes, I am./ No, I am not.Are they swimming? Yes, they are. / No, they arent.Is
5、 he playing football? Yes, he is. / No, he isnt.（3）动词变ing形式：在动词末尾加ing. 如：play- playing 末尾有e 要去e加ing. 如：ride riding 末尾以辅音元音辅音结尾 双写末尾一个辅音如：swim-swimming3. 一般将来时。 主要描述将来要发生的事情。（1）标志词： tomorrow,the day after tomorrow,the year after next year, tomorrow morning/afternoon /evening next week/year/term/summe
6、r vacation/Friday from now on; in the future;in 2050; in + 时间段（重点）（2）结构组成：主语+be going to +动词原形 I am going to visit Ann. They are going to draw a dog. She is going to ride a horse.否定句：在be后加not I am not going to visit Ann. They are not going to draw a dog. She is going to ride a horse.疑问句：将be提前 Are yo
7、u going to visit Ann? Yes, I am. / No, I am not. Are they going to draw a dog? Yes, they are./ No, they arent. Is she going to ride a horse? Yes, she is. / No, she isnt.组成：主语+will+动词原形 I will go to the library. They will clean the house. She will eat breakfast at home.否定句：在will 后加not 或将will not 写为wo
8、nt I will not go to the library. They will not clean the house. She will mot eat breakfast at home.疑问句：将will 提前 Will you go to the library? Yes, I will./ No, I wont. Will they clean the house? Yes, they will. / No, they wont. Will she eat breakfast at home? Yes, she will. /No, she wont.4 一般过去时：主要描述过
9、去发生的事情.（1） 标志词： yesterday, yesterday morning/afternoon,the day before yesterday, before，the year before last year, in 1845/in the 1840s last year/month/week/term/Sunday/summer just now; the other day 时间段+ago; long long ago（2）结构组成：主语+动词过去式 I was a pilot. They were busy. He went to the market. 否定句：在be
10、后加not 在普通动词前加didnt 动词恢复原形。I was not a pilot.They were not busy.He didnt go to the market.疑问句：提前be 动词或在句前加did Were you a pilot? Yes, I was./ No, I wasnt. Were they busy? Yes, they were./ No, they werent. Did they go to the market? Yes, they did. / No, they didnt.（4） 动词变过去式： 在原次末尾加ed 或d 如：play-played
11、like-liked 辅音加y 结尾去y加ied 如：study-studied 辅音元音辅音结尾双写最后一个字母加ed 如：stop-stopped特殊变化：can-could do-did eat-ate go-went hit-hit pit-put sit-sat come-came get-got have-had see-saw begin-began give-gave win-won read-read am/is-was are-were run-ran hear-heard hide-hid lay-laid cut-cut wake-woke fall-fell时态练习一
12、（ ）1. Who _ over there now? A. singing B. are sing C. is singing D.sings（ ）2. Its nine ten. The students _ a music class. A. have B. having C. are having D.has（ ）3. Listen! The boy _. A. crying B. is crying C. cries D.are crying（ ）4. Dont talk here. Grandparents _. A. sleep B. is sleeping C. are sle
13、eping D.am sleeping（ ）5. Is the man _ tea or milk? A. drinks B. drink C. drinking D.drinkking（ ）6. The Greens _ supper now. A. is having B. are having C. has D.have（ ）7. Look!Mary _ doing _ homework. A. is,ones B. is,her C. are,his D.are,her（ ）8. The children are _ TV. A. watch B. seeing C. watching D.reading（ ）9. Polly _ a banana now. A. isnt eating B. arent eating C. are eating D.eats（ ）10. Where _ they _? A.is,standing B.are,standing C. are,stand
