1、三種時態(tài)的比較學(xué)習(xí)三種時態(tài)的比較學(xué)習(xí)新目標(biāo)七年級新目標(biāo)七年級 在英語中，用動詞的形式的變化來在英語中，用動詞的形式的變化來表達(dá)表達(dá)不同時間不同時間發(fā)生的動作或存在的狀態(tài)發(fā)生的動作或存在的狀態(tài) ，這就是這就是時態(tài)時態(tài)?，F(xiàn)在進(jìn)行時現(xiàn)在進(jìn)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)在進(jìn)行時：現(xiàn)在進(jìn)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)在或現(xiàn)階段正在進(jìn)行現(xiàn)在或現(xiàn)階段正在進(jìn)行的動作的動作 。經(jīng)常、反復(fù)或習(xí)慣性的經(jīng)常、反復(fù)或習(xí)慣性的動作以及存在的狀態(tài)。動作以及存在的狀態(tài)。過去某個時間發(fā)生的動過去某個時間發(fā)生的動作或存在的狀態(tài)。作或存在的狀態(tài)?，F(xiàn)在分詞現(xiàn)在分詞 的構(gòu)成：的構(gòu)成：動詞第三人

2、動詞第三人稱單數(shù)的構(gòu)稱單數(shù)的構(gòu)成：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再再加加es.直接加直接加ed.以以e結(jié)尾只加結(jié)尾只加d.重讀輔元輔重讀輔元輔,雙寫尾字母再加雙寫尾字母再加ed.以輔音以輔音+y結(jié)尾變結(jié)尾變y 為為i 再加再加ed.謂語動詞形式謂語動詞形式 have - look - begin- use- shop- get- dance- study-現(xiàn)在分詞現(xiàn)

3、在分詞（一般現(xiàn)在時一般現(xiàn)在時） 第三人稱單數(shù)第三人稱單數(shù)過去式過去式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（現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時）（一

4、般過去時一般過去時）動詞形式的變化動詞形式的變化標(biāo)志詞標(biāo)志詞現(xiàn)在進(jìn)行時現(xiàn)在進(jìn)行時 now , Look! Listen! at this time Where is ? Its 8:00 am. 標(biāo)志詞標(biāo)志詞一般現(xiàn)在時一般現(xiàn)在時 always , usually, often, sometimes , every day, three times a day等表達(dá)等表達(dá)頻度的副詞常在一般現(xiàn)在時態(tài)中使頻度的副詞常在一般現(xiàn)在時態(tài)中使用。用。 標(biāo)志詞標(biāo)志詞一般過去時一般過去時 last night last night ，two days ago two days ago ， in 1999 in

5、1999 （過去的年份過去的年份），），yesterdayyesterday， just now =a moment agojust now =a moment ago剛才，剛才，the day before yesterday the day before yesterday 判斷下列時間狀語屬于哪種時態(tài)判斷下列時間狀語屬于哪種時態(tài)last night now every day Look!yesterday often Listen!two years ago always in 1897three times a week一般現(xiàn)在時一般過去時現(xiàn)在進(jìn)行時變否定句的方法：變否定句的方法：首先

6、看有無首先看有無 be 動詞，如果有，在動詞，如果有，在be 動詞后面加動詞后面加not.如：如： He is a teacher. He isnt a teacher.主語主語+dont/doesnt/didnt+動詞原形動詞原形如：如：She went to Paris yesterday. She didnt go to Paris yesterday如果沒有如果沒有be 動詞，看原句的動詞動詞，看原句的動詞形式來決定借用助動詞形式來決定借用助動詞do/does/did,并在后面加并在后面加not,并且并且動詞要還原。動詞要還原。變一般疑問句的方法：變一般疑問句的方法：首先看有無首先看有

7、無be動詞，如果有，將動詞，如果有，將be提到句首并提到句首并大寫大寫，句末打，句末打問號問號.如：如： He is a teacher. Is he a teacher？如果沒有如果沒有be動詞，看原句的動詞形式來決定借動詞，看原句的動詞形式來決定借用助動詞用助動詞do/does/did,并且并且動詞要還原動詞要還原。動詞動詞-原形原形動詞動詞-s/es動詞動詞-ed+動詞原形動詞原形?DoDoesDid如：如：She went to Paris. Did she go to Paris？ 對比對比時態(tài)時態(tài)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(jìn)現(xiàn)在進(jìn)行時行時 一般現(xiàn)一般現(xiàn)在時在時

8、一般過一般過去時去時三種句式的對比三種句式的對比be+動詞動詞-ing(現(xiàn)在分詞）現(xiàn)在分詞）在在be 后后加上加上not Be提提到句首到句首動詞動詞 -原形原形動詞動詞-第三第三人單數(shù)人單數(shù)在行為動詞前借用在行為動詞前借用do ,does后加后加not，行為動詞還原行為動詞還原Do,Does 提提到句首，到句首，行為動詞行為動詞還原還原動詞動詞-ed(過去式）過去式）在行為動詞前借在行為動詞前借用用did后加后加not，行為動詞還原行為動詞還原Did 提到句提到句首，行為首，行為動詞還原動詞還原判斷時態(tài)形式判斷時態(tài)形式：1. He always likes playing the piano

9、.( )2. We are having an English classes now.( )3. They often go home late.( )4. Lucy danced the disco at the party last night.( )5. I liked go to the zoo when I was young.( )6. My teacher is friendly to us.( )7. Look! They are playing football.( )8. She was born in 1990.( )9. I lost much money last

10、night.（ ）A.現(xiàn)在進(jìn)行時B.一般現(xiàn)在時C.一般過去時ABCABBCCC1. 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.Is he a teacher?He isnt a teacher.Does Kangkang come from China?Kangkang doesnt come from China.Do you usually take t

11、he 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.先變一般疑問句再變否定先變一般疑問句再變否定句句用所給動詞的適當(dāng)形式填空。用所給動詞的適當(dāng)形式填空。1. Listen! She _ ( sing) now.2. The man _ (run) along the street now.3. My

12、mother _(watch) TV play every day.4. Old Bush _(visit) China again last month. is singing is running watches visited中考鏈接中考鏈接1.-What do you do? -Im an engineer.I_in a company in Wuhan. A. work B. had worked C.will work D.worked 2.-Alice,turn down the TV, please.I_ on the phone. -Oh, Im sorry. A. have

13、 talked B. talked C. am talking D.talk中考鏈接中考鏈接3.Karin found some waste paper on the floor. She _ it _ and threw it into the dustbin. A. put ; up B. picked ; up C. turned ; up D. looked ; up4.Today is Fathers Day. My mother _ a special dinner for my grandpa now. A. prepare B. prepared C. is preparing D. will prepred 中考鏈接中考鏈接5.-_ the girls _you a warm welcome? -Yes, t