人教版初中英语八年级上册Unit 1 Section A Grammar focus 3a—3c(共27张PPT)

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一般过去时态
什么是一般过去时?
动词的一般过去时态表示过去某个时间 发生的动作或存在的状态。
所有时态都是通过
动词
变化来表现的
Please look at the sentences
我今年12岁. am 12 years old this year. I ___ 我去年11岁. was 11 years old last year. I ____ 他现在在北京。 is in Beijing now. He ____ 他昨天在上海。 was in Shanghai yesterday. He ____
谓语构成一般过去时以动词的过去式 来表示
was , were 1.动词 be 2.动词 have, has had 3.助动词do, does did 4.行为动词用过去式(规则和不规则的)
注意: 过去式没有人称和数的变化 (was,were除外) I went to school yesterday. They went to school yesterday.
用于一般过去时的时间状语
1.与ago 连用: a moment two minutes three hours five days one week six months four years
ago
2.与last 连用
last
3.与yesterday 连用:
time night week month term Monday
I ____ told (tell) them the news yesterday.我昨天告诉了他们消息 didn’t tell them the news I _________ yesterday.我昨天没有告诉他们
主语+didn’t+动词原形
行为动词一般过去时的疑问式
一般过去时的一般疑问式在句 首加助动词did Did+主语+动词原形……?
They finished ______(finish) their work at four. 一般疑问句: Did they _____ finish their work at four? ____ didn’t did Yes, they _____. No, they _____.
一般过去时的特殊疑问式
yesterday
morning afternoon evening
the day before yesterday
4.与one 连用: morning evening one day Monday afternoon 5.与that 连用: morning winter day year
that
特殊疑问词+did+主语+动词原 形……? They finished their work at four. B A
对划线部分提问 A: What did they do at four? B:When did they finish their work?
study — studied 5.不规则变化.(见不规则动词表)
用法
1.表示过去某一时间内发生的动作,常和 过去时间状语连用 He got home at ten o’clock last night. 2.表示过去经常或反复发生的动作, 常与often,always等表示频率的 副词 及过去时间状语连用: I often got up very early at that time.
他们今天在中国。 are in China today. They ____
他们昨天在日本。
were in Japan yesterday. They ____
am/ is are
was were
每天,早餐我吃鸡蛋和牛奶。 I have ____ eggs and milk for breakfast every morning. 昨天,早餐我吃面条。 had noodles for breakfast I ____ yesterday morning. 他每天都吃水果。 has fruit every day. He _____ 昨天他吃了3个苹果。 He _____ had 3 apples yesterday.
6.其他时间状语:
just now in the old days in those days in 1980 the other day at that time once upon a time
行为动词一般过去时的否定式
一般过去时的否定式是在动词原形 前加助动词did not (didn’t).
行为动词的过去式有规则变化和 不规则变化
规则变化
1.一般加ed work — worked 2.以e结尾加d change — changed 3.末尾只有一个辅音字母的重读闭 音节词,先双写这个辅音字母,再 加ed . stop — stopped
prefer — preferred
4.以辅音字母加y ቤተ መጻሕፍቲ ባይዱ尾的词,先 改 y为 i,再加ed

3.表示已故人所做的事情。
Comrade Lei Feng did good deeds in his life. 雷锋同志做了一生的好事。 4.表示过去连续发生的动作时,要用过 去时。这种情况下,往往没有表示过去 的时间状语,而通过上下文来表示。
Miss Liu got up at seven o’clock this morning, dressed, had breakfast, and went to work.
have/ has
had
I get up at 6:30 every morning. got up at 9:00 last Sunday. I ___ He plays football every afternoon. played basketball yesterday He _____ afternoon. He does his homework every evening. did some reading last night. He ____ 行为动词的过去式有规则变化和 不规则变化
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