七年級三種基本的時態(tài)

1、 在英語中，在英語中，不同時間不同時間發(fā)生的動作發(fā)生的動作或存在的狀態(tài)要用或存在的狀態(tài)要用不同的動詞形式不同的動詞形式來來表現(xiàn)。表現(xiàn)。 每種時態(tài)的概念、信息詞、每種時態(tài)的概念、信息詞、結(jié)構(gòu)、句式變化、以及某些時態(tài)結(jié)構(gòu)、句式變化、以及某些時態(tài)間的相互區(qū)別間的相互區(qū)別重點掌握重點掌握時態(tài)時態(tài)Tense時態(tài)時態(tài)現(xiàn)在進行時：現(xiàn)在進行時：一般現(xiàn)在時：一般現(xiàn)在時：一般過去時：一般過去時：現(xiàn)在正在現(xiàn)在正在進行進行的動作的動作 經(jīng)常經(jīng)?；蚧蛄晳T性習慣性的動的動作或存在的狀態(tài)。作或存在的狀態(tài)。過去過去某個時間或時間段發(fā)某個時間或時間段發(fā)生的動作或存在的狀態(tài)。生的動作或存在的狀態(tài)。(The Present Con

2、tinuous Tense)(The Simple Present Tense)(The Simple Past Tense)各時態(tài)常用的信息詞現(xiàn)在進行時：一般現(xiàn)在時:一般過去時: now , Look! Listen! at this time Where is ? Dont talk! Its 8:00am. always , usually, often, sometimes ,seldom, never, every day, every ,three times a day last night, last, two days ago, ago, in 1999, in +過去過去的

3、年份的年份, just now =a moment ago, yesterday, yesterday morning 判斷下列信息詞是屬于哪種時態(tài)判斷下列信息詞是屬于哪種時態(tài) last night now every day Look! yesterday often Listen! two years ago alwaysin 1897 three times a week 一般現(xiàn)在時一般過去時現(xiàn)在進行時改一般疑問句的方法：改否定句的方法：首先看有無be動詞，如果有，將be提到句首并大寫，句末打問號.如果沒有be動詞，看原句的動詞形式來決定借用助動詞do/does/did,并且行為動詞要還

4、原。V-原形V-s/esV-ed(過去式)+動詞原形?以此類推首先看有無be動詞，如果有，在be 動詞后面加not.如果沒有be 動詞，看原句的動詞形式來決定借用助動詞do/does/did,并在后面加not,并且行為動詞要還原。主語+dont/doesnt/didnt+動詞原形DoDoesDid1. He 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（一般疑問句

5、） 再（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 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.

6、句型變化操練句型變化操練現(xiàn)在分詞現(xiàn)在分詞 的構(gòu)成：的構(gòu)成：動詞第三人稱動詞第三人稱單數(shù)的構(gòu)成：單數(shù)的構(gòu)成：過去式過去式的構(gòu)成：的構(gòu)成：直接加直接加-ing.重讀輔元輔，雙寫尾字母加重讀輔元輔，雙寫尾字母加-ing.以以e 結(jié)尾去結(jié)尾去e加加-ing .直接加直接加-s.以以s, x, ch, sh, o結(jié)尾加結(jié)尾加-es.以以“輔音輔音+y “結(jié)尾變結(jié)尾變y 為為i再加再加-es.直接加直接加-ed.以以e結(jié)尾只加結(jié)尾只加d.重讀輔元輔，雙寫尾字母再加重讀輔元輔，雙寫尾字母再加-ed.以以“輔音輔音+y”結(jié)尾變結(jié)尾變y 為為i 再加再加-ed. have - look - begin- use

7、- shop- get- dance- study-現(xiàn)在分詞第三人稱單數(shù)過去式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 plays watches gives needed stopped hoped played tried planned visited liked 對比對比時態(tài)時態(tài)

8、動詞形式動詞形式否定句否定句一般問句一般問句現(xiàn)在進現(xiàn)在進行時行時 一般現(xiàn)一般現(xiàn)在時在時一般過一般過去時去時表格對比學習表格對比學習be+v-ing(現(xiàn)在分詞）現(xiàn)在分詞）在在be 后后加上加上not Be提到提到句首句首V -原形原形V-三單三單在行為在行為v.前借用前借用do ,does后加后加not，行為動詞還原行為動詞還原Do,Does 提到句首，提到句首，行為動詞行為動詞還原還原V-ed(過去式）過去式）在行為在行為v.前借用前借用did后加后加not，行為，行為動詞還原動詞還原Did 提到句提到句首，行為首，行為動詞還原動詞還原用所給動詞的適當形式填空。用所給動詞的適當形式填空。1.

9、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. Look! Lucy and Lily _(read) books.7. There _(is) a football match yesterday afternoon.8. Our class _(

10、go) to the zoo three days ago. is singing is running watches visited play are reading was went時態(tài)大比拼時態(tài)大比拼 She got up at seven oclock yesterday. （用 now改寫） She is getting up now . （用 every day改寫） She gets up at seven oclock every day.時態(tài)大比拼時態(tài)大比拼 Look！Tom is cleaning his room. （用on weekends 改寫） Tom cleans his room on weekends. （用two hours ago改寫） Tom clean