初中一般過去時課件

1、一般過去時,一、定義 動詞的一般過去時態(tài)表示過去發(fā)生的動作、情況或存在的狀態(tài)。行為動詞（即實義動詞）的過去式?jīng)]有人稱和數(shù)的變化。,二、謂語動詞的構(gòu)成形式 一般過去時的謂語動詞有be動詞和行為動詞兩種基本形式。 類比一般現(xiàn)在時： （1）當(dāng)謂語動詞是be (am, is, are) 動詞時，am/ is 變?yōu)閣as, are 變?yōu)閣ere。在 否定句中，直接將not添加在was/ were之后. 疑問句時，將was/were置于主語之前即可。 e.g. 肯： I was ill yesterday morning. 否： I wasnt ill yesterday.,一般疑問句：Were you

2、ill yesterday morning? Yes, I was. /No, I wasnt. 特殊疑問句：How was she？ （2）當(dāng)謂語動詞是行為動詞時，將對應(yīng)的一般現(xiàn)在時肯定句中的行為動詞變成過去式；否定及疑問句中的do/does變成did即可動詞仍用原形，即“見did，也用動原”。 一般現(xiàn)在時 一般過去時,e.g. She likes dancing. She doesnt like dancing. Does she like dancing？ What does she like？,She liked dancing. She didnt like dancing. Did

3、 she like dancing？ What did she like？,規(guī)則過去式變化規(guī)律：,不規(guī)則變化有： seesaw dodid gowent am/iswas arewere has/havehad等,寫出下列動詞的過去式 1. study _ 2. go _ 3. turn _ 4. are_ 5. play _ 6. have _ 7. stop _ 8. clean_ 9. is _ 10. love_,三、一般過去時的用法 1.表示在過去時間里發(fā)生的動作或存在的狀態(tài) e.g. Liu Jie got up at 7: 10 this morning. He was a st

4、udent three years ago. 2表示過去經(jīng)常或反復(fù)發(fā)生的動作。 e.g. Zhang always went to school by bike last term. 3表示已故人所做的事情。 e.g. Comrade Lei Feng did good deeds in his life. (雷鋒同志做了一生的好事。),4.表示過去所發(fā)生的一系列的動作，而這一系列的動作是從現(xiàn)在的角度來考慮的，不是從動作相互之間的關(guān)系這一角度來考慮的。 e.g. Miss Liu got up at seven oclock this morning, dressed, had breakfa

5、st, and went to work.,四、一般過去時常用的時間狀語 1.yesterday或以其構(gòu)成的短語：yesterday morning(afternoon, evening)等； 2. 由“l(fā)ast+一時間名詞”構(gòu)成的短語：last night, last year (winter, month, week)等； 3. 由“時間段+ago”構(gòu)成的短語：a moment ago, a short time ago, an hour ago等； 4. 由“介詞+一時間名詞”構(gòu)成的短語：on Friday, on Monday morning, on April 15, on the

6、night of Oct. 1，in 1980；,5.頻度副詞：often, always 等； 6. 其它：then, just now, once,以及由after或before構(gòu)成的介詞短語等； 7. 由某些表示過去時態(tài)的從句等。 比較： He is 15 now. He was 14 last year. He was born on January 12,1991.,練一練： 1,She often _(go) to school at eight oclock. 2,They are _ supper. (eat) 3,He usually _ up at 17:00.(get )

7、 4,She _(live) in Beijing last year. 5._(be)there a fly (蒼蠅) on the table just now? 6. I _(call) Mike this morning. 7. Last week we _(pick) many apples on the farm. 8.My mother _(not do) housework yesterday.,常見錯誤 一、把動詞變成過去式易出錯 例: 1 They stoped (stop) talking just now. 2 They plaied (play) football y

8、esterday. 答案: 1 stopped 2 played 解析:我們可以記住下面的口訣:動詞變成過去式,雙寫規(guī)律要牢記;y前若是輔音字,y變i加-ed;y前若是元音字,只須直接加-ed. 二、忘記把動詞變成過去式 例: I fly (fly) kites on the afternoon of Sunday. 答案: flew 解析:我們可以記住下面的口訣:一般過去時態(tài)里,過去形式莫忘記.,三 、在句式變換時易出錯 例: 1 We didnt went (not go) out last Friday. 2 Did you had (have) a good time yesterda

9、y? 答案: 1 didnt go 2 Did have 解析:請記住口訣見助動, 用原形. 四 、易與單三人稱作主語的一般現(xiàn)在時弄混 例: He taughts (teach) me English last year. 答案: taught 解析:行為動詞的過去式無人稱和數(shù)的變化.即使主語是單三人稱,也和其它人稱所用動詞的形式一樣.,真題演練： 1.（07中考） When _ your brother _ back? About half an hour ago. did; come B. had; come C. do; come D. have; come 2.（08中考）When _

10、 your mother _ you that blue dress, Mary? Sorry, I really cant remember. A. does; buy B. has; bought C. had; bought D. did; buy 3.（09中考）When _ Jessy _ to New York？ Yesterday. A.does;get B.did;get C.has;got D.had;got,改錯題 How is Jane yesterday? _ He gets to school at six yesterday. _ He often goes hom

11、e at 6:00 last month. _ I can fly kites seven years ago. _ Did you saw him just now. _ Tom wasnt watch TV last night. _ I did my homework later . _ He wait for you three hours ago. _ Who find it just now ? _,句型轉(zhuǎn)換 1.They came to China in 1990.(變一般疑問句) _ they _ to China in 1990? 2.I was ill for two days last week? (同上) _ you ill for two days last we