一般過去時(shí)

1．一般過去時(shí)表示過去某個(gè)時(shí)間發(fā)生的動(dòng)作或存在的狀態(tài)，常和表示過去的時(shí)間狀語連用。一般過去時(shí)也表示過去經(jīng)?；蚍磸?fù)發(fā)生的動(dòng)作感謝。
    2．Be動(dòng)詞在一般過去時(shí)中的變化： ⑴am 和is在一般過去時(shí)中變?yōu)閣as。（was not=wasn’t） ⑵are在一般過去時(shí)中變?yōu)?/span>were。（were not=weren’t） ⑶帶有was或were的句子，其否定、疑問的變化和is, am, are一樣，即否定句在was或were后加not，一般疑問句把was或were調(diào)到句首。
    3．句中沒有be動(dòng)詞的一般過去時(shí)的句子 否定句：didn’t +動(dòng)詞原形，如：Jim didn’t go home yesterday. 一般疑問句：在句首加did，句子中的動(dòng)詞過去式變回原形。如：Did Jim go home yesterday? 特殊疑問句： ⑴疑問詞+did+主語+動(dòng)詞原形？如： What did Jim do yesterday? ⑵疑問詞當(dāng)主語時(shí)：疑問詞+動(dòng)詞過去式？如：Who went to home yesterday?
動(dòng)詞過去式變化規(guī)則：
1）一般在動(dòng)詞末尾加-ed，如：pull-pulled, cook-cooked
2）結(jié)尾是e加d，如：taste-tasted
3）末尾只有一個(gè)元音字母和一個(gè)輔音字母的重讀閉音節(jié)，應(yīng)雙寫末尾的輔音字母，再加-ed，如：stop-stopped
4）以“輔音字母+y”結(jié)尾的，變y為i， 再加-ed，如：study-studied
5）不規(guī)則動(dòng)詞過去式： am,is-was, are-were, do-did, see-saw, say-said, give-gave, get-got, go-went, come-came, have-had, eat-ate, take-took, run-ran, sing-sang, put-put, make-made, read-read, write-wrote, draw-drew, drink-drank, fly-flew, ride-rode, speak-spoke, sweep-swept, swim-swam, sit-sat

4.句中be動(dòng)詞和動(dòng)詞一般情況下只能有一種而且也必須有一種。如：
The girls were on the grass just now .
They visited my parents last weekend .
     5.一般過去時(shí)中的be動(dòng)詞：一般用過去式：was were
was用于第一人稱單數(shù)（I）和第三人稱單數(shù)（he she it和其他人名或稱謂，如：Ben 、 his sister等）；were用于第二人稱單數(shù)（you）和所有復(fù)數(shù)（包括第一人稱復(fù)數(shù)we、第二人稱復(fù)數(shù)you；第三人稱復(fù)數(shù)they和其他復(fù)數(shù)，如the children 、 his parents等）。
     6.一般過去時(shí)中的動(dòng)詞：一般只有一種情況：+ed
這里強(qiáng)調(diào)一點(diǎn)，和一般現(xiàn)在時(shí)不同的是這里不管主語是第幾人稱，也不管是單數(shù)和復(fù)數(shù)都加ed。
     7.一般過去時(shí)判斷依據(jù)（如何判斷一個(gè)句子是一般過去時(shí)）：
△be動(dòng)詞是was、were
△動(dòng)詞加ed
△有表示過去的時(shí)間狀語
現(xiàn)在學(xué)過的常用的表示過去的時(shí)間狀語有：
just now a moment yesterday last week last night last weekend last year last month three days ago two weeks ago
five years ago
      8.有用的的依據(jù)：
Be動(dòng)詞是was或were 該句是一般過去時(shí)
動(dòng)詞加ed 有表示過去的時(shí)間狀語

動(dòng)詞的過去式的構(gòu)成規(guī)則有:
A,規(guī)則動(dòng)詞
① 一般直接在動(dòng)詞的后面加ed:如 worked , learned , cleaned , visited
② 以e結(jié)尾的動(dòng)詞直接加d:如 lived , danced , used
③ 以輔音字母加y結(jié)尾的動(dòng)詞要改y為i再加ed(此類動(dòng)詞較少)如 study – studied carry – carried worry – worried (注意play,stay不是輔音字母加y,所以不屬于此類)
④ 雙寫最后一個(gè)字母(此類動(dòng)詞較少)如 stopped
B,不規(guī)則動(dòng)詞(此類詞并無規(guī)則,須熟記)小學(xué)階段要記住以下動(dòng)詞的原形和過去式:sing – sang , eat – ate , see – saw , have – had , do – did , go - went , take - took , buy - bought , get - got , read - read ,fly - flew , am/is - was ,
are - were , say - said , leave - left , swim - swam , tell - told , draw - drew , come - came , lose - lost , find - found , drink - drank , hurt - hurt , feel - felt