初中一般过去时ppt课件

5.___(be)there a fly (苍蝇) 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.
7. 由某些表示过去时态的从句等。
比较： He is 15 now. He was 14 last year. He was born on January 12,1991.
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练一练： 1,She often _____(go) to school at eight o’clock. 2,They are _____________ supper. (eat) 3,He usually _______ up at 17:00.(get ) 4,She _______(live) in Beijing last year.
一般过去时
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一、定义 动词的一般过去时态表示过去发生的动作、情况或存 在的状态。行为动词（即实义动词）的过去式没有人 称和数的变化。
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二、谓语动词的构成形式
一般过去时的谓语动词有be动词和行为动词两种基 本形式。
类比一般现在时：
（1）当谓语动词是be (am, is, are)
动词时，am/ is 变为was, are 变为were。在
否定句中，直接将not添加在was/ were之后.
疑问句时，将was/were置于主语之前即可。
e.g.
肯：
I was ill yesterday morning.
否：
I wasn’t ill yesterday.
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一般疑问句：——Were you ill yesterday morning?
——Yes, I was. /No, I wasn’t. 特殊疑问句：How was she？ （2）当谓语动词是行为动词时，将对应的一般现在时肯定句 中的行为动词变成过去式；否定及疑问句中的do/does变成 did即可动词仍用原形，即“见did，也用动原”。
一般现在时 e.g. She likes dancing.
She doesn’t like dancing. Does she like dancing？ What does she like？
一般过去时 She liked dancing.
She didn’t like dancing.
Did she like dancing？
4. 由“介词+一时间名词”构成的短语：on Friday, on Monday morning, on April 15, on the night of Oct. 1，in 1980；
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5.频度副词：often, always 等；
6. 其它：then, just now, once,以及由after或before 构成的介词短语等；
规律要牢记;y前若是辅音字,y变i加-ed;y前若是元音 字,只须直接加-ed." 二、忘记把动词变成过去式 例: I fly (fly) kites on the afternoon of Sunday. 答案: flew 解析:我们可以记住下面的口诀:"一般过去时态里,过去 形式莫忘记".
7. stop _______ 8. clean_______
9. is ____
10. love_____
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三、一般过去时的用法 1.表示在过去时间里发生的动作或存在的状态 e.g. Liu Jie got up at 7: 10 this morning.
He was a student three years ago.
不规则变化有：
see—saw do—did go—went
am/is—was are—were has/have—had等
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写出下列动词的过去式
1. study ______ 2. go ____
3. turn ______ 4. are____
5. play ______ 6. have ____
2．表示过去经常或反复发生的动作。 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. (雷锋同志做了一生的好事。)
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4.表示过去所发生的一系列的动作，而这一系列的 动作是从现在的角度来考虑的，不是从动作相互之 间的关系这一角度来考虑的。 e.g. Miss Liu got up at seven o’clock this morning, dressed, had breakfast, and went to work.
What did she like？
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规则过去式变化规律：
一般直接加ed或d
play→played look→looked like→liked want→wanted
以辅音字母+y结尾的， study→studied
改y为i加ed
carry→carried
以“单元音+单辅音” stop→stopped 结尾的重读闭音节双写 plan→planned 词尾的辅音字母再加ed
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四、一般过去时常用的时间状语 1.yesterday或以其构成的短语：yesterday morning(afternoon, evening)等；
2. 由“last+一时间名词”构成的短语：last night, last year (winter, month, week)等ago, a short time ago, an hour ago等；
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❖ 常见错误 一、把动词变成过去式易出错 例: 1 They stoped (stop) talking just now. 2 They plaied (play) football yesterday. 答案: 1 stopped 2 played 解析:我们可以记住下面的口诀:"动词变成过去式,双写