初一常用英語時態(tài).ppt

1、大新莊鄉(xiāng)第二初級中學(xué) 張梅,初一常用英語時態(tài),在英語中，不同時間發(fā)生的動作或存在的狀態(tài)要用不同的動詞形式來表現(xiàn)。,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)間的相互區(qū)別,重點掌握,時態(tài),Tense,時態(tài),現(xiàn)在進行時：,一般現(xiàn)在時：,一般過去時：,現(xiàn)在正在進行的動作,經(jīng)常或習(xí)慣性的動作或存在的狀態(tài)。,過去某個時間或時間段發(fā)生的動作或存在的狀態(tài)。,(The Present Continuous 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 , Loo

2、k! 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 +過去的年份, just now =a moment ago, yesterday, yesterday morning,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! Li

3、sten! 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 +過去的年份, just now =a moment ago, yesterday, yesterday morning,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

4、. 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,并且行為動詞要還原。,V-原形 V-s/es V-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,現(xiàn)在分詞 的構(gòu)成：,動詞第三人稱 單數(shù)的構(gòu)成：,過去式 的構(gòu)成：,直接加-ing. 重讀輔元輔，雙寫尾字母加-ing. 以e 結(jié)尾去e加-ing .,直接加-s. 以s, x, ch, sh, o結(jié)尾加-es

5、. 以“輔音+y “結(jié)尾變y 為i再加-es.,直接加-ed. 以e結(jié)尾只加d. 重讀輔元輔，雙寫尾字母再加-ed. 以“輔音+y”結(jié)尾變y 為i 再加-ed.,表格對比學(xué)習(xí),be+v-ing (現(xiàn)在分詞）,在be 后加上not,Be提到句首,V -原形 V-三人單,在行為v.前借用do ,does后加not，行為動詞還原,Do,Does 提到句首，行為動詞還原,V-ed (過去式）,在行為v.前借用did后加not，行為動詞還原,Did 提到句首，行為動詞還原,表格對比學(xué)習(xí),be+v-ing (現(xiàn)在分詞）,在be 后加上not,Be提到句首,V -原形 V-三人單,在行為v.前借用do ,d

6、oes后加not，行為動詞還原,Do,Does 提到句首，行為動詞還原,V-ed (過去式）,在行為v.前借用did后加not，行為動詞還原,Did 提到句首，行為動詞還原,小小測試,判斷時態(tài)形式：,He always likes playing the piano.( ) We are having an English classes now.( ) They often go home late.( ) Lucy danced the disco at the party last night.( ) I liked go to the zoo when I was young.( )

7、My teacher is friendly to us.( ) Look! They are playing football.( ) She was born in 1990.( ) I lost much money last night.（ ）,A.現(xiàn)在進行時 B.一般現(xiàn)在時 C.一般過去時,A,B,C,A,B,B,C,C,C,have - look - begin- use- 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

8、- 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,詞形轉(zhuǎn)換,He is a teacher.,2. Kangkang comes from China.,3. I usually take the bus to work.,4.They ar

9、e having classes.,5.Jane played the guitar last night.,先（一般疑問句） 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

10、 Jane play the guitar last night? Jane didnt play the guitar last night.,句型變化操練,用所給動詞的適當(dāng)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.

11、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,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 always in 1897 three times a week,一般現(xiàn)在時 一般過去時 現(xiàn)在進行時,過去式的不規(guī)則變化,blow - buy - can - come- do - eat - fall - find - forget - get -,give- go - have- know- learn - make - meet - read - run - say -,see - send- sit - take- think- will - tell - b