一般过去时的讲解 课件(共34张PPT)

(共34张PPT)
知识结构
构成
意义
常用时间标志
动词的过去式
1. 表示过去某个时间发
生的动作或存在的状态。
2. 表示过去经常或
反复发生的动作。
yesterday morning/afternoon
last night/week/year/
Sunday/
in 1990
two years/weeks ago
Grammar
一般过去时
动词过去式的变化
1. 动词be的变化：
was
were
am
is
are
2. 助动词do的变化：
do→ did (在过去时里助动词do没有
人称和数的变化)
如：Did you play soccer yesterday
Did he play soccer yesterday
3. 实义动词的变化：
实义动词分规则变化和不规则变化。
规则变化有以下几种：
(1) 一般情况下在动词后加-ed。
e.g. play—played
visit—visited 　
walk—walked
clean—cleaned
(2) 以不发音的e结尾的词，在词尾
加-d。
e.g. live—lived
like—liked 　
dance—danced 　
hope—hoped
(3) 以一个元音加一个辅音字母结尾的
重读闭音节结尾的单词，要先双写
这个辅音字母，再加-ed。
e.g. stop—stopped 　
drop—dropped 　
plan—planned
(4) 以辅音字母加y结尾的单词，先改y
为i，再加-ed。
e.g. study—studied 　
carry—carried
不规则变化需要按一定的规律逐个
记忆。
规则动词词-ed的读音清念 /t/ ,元浊/d/ ;
/t/ /d/ 之后念/id/
1、清念 /t/ ，即 ed 在清辅音后面念 /t/ ,
例：finished helped passed cooked
2.元浊 /d/ ,即 ed 在元音，浊辅音后面/d/
例：borrowed enjoyed called moved
3、/t/ /d/ 之后念 /id/ , 即 ed 在 /t/ /d/ 音后
面念 /id/
例：wanted shouted needed counted
◆不规则变化(需逐个记忆)：
do — did come — came go — went
sit — sat have — had can — could
take — took give — gave put— put
get — got 　 swim — swam 　eat — ate
tell— told sleep — slept see — saw wear — wore lie — lay drink — drank find — found write — wrote can — could
will — would sing — sang read — read
do — did 　　　 go — went 　
read — read　　 see — saw
get — got　　　 sit — sat 　　　　 have/has — had 　 am/is — was
在本单元中出现的不规则动词有以下几个：
III. 写出下列单词的过去式
talk milk
am /is are
go ride
feed take
do see
talked
was
went
fed
did
milked
were
rode
took
saw
I ___ 12 years old this year.
我去年11岁.
I ____ 11 years old last year.
He ____ in Beijing now.
他昨天在上海。
He ____ in Shanghai yesterday.
他现在在北京。
Please look at the sentences
我今年12岁.
am
was
is
was
They ____ in China today.
他们今天在中国。
They ____ in Japan yesterday.
他们昨天在日本。
are
were
am/ is
was
are
were
每天，早餐我吃鸡蛋和牛奶。
I ____ eggs and milk for breakfast every morning.
昨天，早餐我吃面条。
I ____ noodles for breakfast yesterday morning.
他每天都吃水果。
He _____ fruit every day.
昨天他吃了3个苹果。
He _____ 3 apples yesterday.
have/ has
had
have
has
had
had
I get up at 6:30 every morning.
I ___ up at 9:00 last Sunday.
He plays football every afternoon.
He _____ basketball yesterday afternoon.
He does his homework every evening.
He ____ some reading last night.
动词原形、第三人称单数
动词过去式
got
played
did
They don’t watch TV in the evening.
They _________ TV last night.
She doesn’t play basketball after school.
She _________ basketball after school yesterday.
Do you go to school on foot every day
___ you __ to school on footyesterday.
Does he go to school by bus every day
___ he ___to school by bus yesterday
don’t/ doesn’t
do/ does
didn’t
did
didn’t watch
didn’t play
Did
Did
go
go
◆一般现在时:句中be动词用am/is/are, 实义
动词用三单或原形,表示现在的状态或
现在经常反复发生的动作和行为。
★时标:always usually often sometimes
never every day on Sundays
◆现在进行时:句中动词用am/is/are +doing
形式,表示现在正在进行的动作。
★时标: now at the moment listen look
do sth. at+具体时刻 It’s+具体时刻
◆一般过去时:句中be动词用was/were,实义动
词用动词过去式,表示过去某个时间发生的
动作或存在的状态也可表示过去反复出现
的动作(与频度副词usually, often等连用)
I was nine years old in 2008.
(过去某时间的状态)
I went to Shanghai last year.
(过去某时间发生的动作)
I often did my homework at school.
(过去反复出现的动作)
我天天打篮球。
我正在打篮球。
我昨天打篮球。
I every day.
I now.
I yesterday.
play basketball
am playing basketball
played basketball
一般过去时
一般现在时
现在进行时
★时标: (汉语翻译时常用“…了”)
① yesterday (昨天)
② yesterday morning / afternoon / evening
(昨天早上 / 下午 / 晚上)
③ last night (昨晚) = yesterday evening
④ last year / month / week
(去年 / 上个月 / 上星期)
⑤ the day before yesterday (前天)
⑥ in+过去的年份或月份 (在…年/在…月)
⑦ 时间段+ago (…以前)
⑧ just now (刚才) at that time=then (在那时)
⑨ when + 过去时句子 (一般过去时时间状从)
含be动词的过去时句式
①肯定句 主语 + was / were + 表语.
②否定句 主语 + was / were not + 表语.
(wasn’t/ weren’t)
③一般疑问句 Was / Were + 主语 + 表语
肯定回答 Yes, 代词 + was / were.
否定回答 No, 代词 + wasn’t / weren’t.
I ____ a teacher last year.
I _______ a teacher last year.
______ you a teacher last year
Yes, I _____. / No, I _______.
was
wasn’t
Were
was
wasn’t
①肯定句 主语+动词过去式+宾语.
I _______(watch) TV last night.
②否定句 主语+didn’t+动词原形+宾语.
I ____________(not watch) TV last night.
③一般疑问句 Did+主语+动词原形+宾语
肯定回答 Yes, 代词+did.
否定回答 No, 代词+didn’t.
_____ you ______(watch) TV last night
Yes, I _____. / No, I ______.
④特殊疑问句 特殊疑问词+did+主语+动原
What _____ you _____(do) last night
含实义动词的过去时句式
watched
didn’t watch
Did watch
did
didn’t
did do
did, does一出现,
动词都要变原形
动词一般过去时，表示过去发生事；
be用was或用were, have, has变had；
谓语动词过去式，过去时间作标志；
一般动词加-ed，若是特殊得硬记。
否定句很简单，主语之后didn’t添；
疑问句也不难，did放在主语前；
如果谓语之前有did，谓语动词需还原；
动词若是was,were,否定就把not添。
1.He visited his friends last night.
2.Tom took some photos two days ago.
3.We went for a walk yesterday.
4.I studied in Beijing in 1999.
5.They played soccer yesterday morning.
1.He visited his friends last night.
.否定句He didn’t visit his friends last night.
疑问句：Did he visit his friends last night
肯定回答：Yes, he did.
否定回答：No, he didn’t.
对划线提问：What did he do last night
对划线提问：When did he visit his friends
1.I_______ ( play) soccer yesterday.
否定句：
疑问句：
肯定回答：
否定回答：
对划线提问:
：
对划线提问：
played
I didn’t play soccer yesterday.
Did you play soccer yesterday
Yes, I did.
No, I didn’t.
What did you do yesyerday
When did you play soccer
2.Tom took some photos two days ago.
否定句:
疑问句：
肯定回答：
否定回答:
划线提问：
划线提问：
Tom didn’t take any photos two days ago.
Did Tom take any photos two days ago
Yes, he did.
No, he didn’t.
What did Tom do two days ago
When did Tom take any photos
3.We______(go) for a walk yesterday.
4.I_______(study) in Beijing in 1999.
went
studied
否定句
疑问句
肯定回答
否定回答
划线提问
划线提问
We didn’t go for a walk yesterday.
Did you go for a walk yesterday
Yes, we did.
No, we didn’t.
What did you do yesterday
When did you go for a walk
I. 用适当的词填空
1. How ___ your school trip It was great.
2. How _____ you yesterday
3. Today is Monday. Yesterday ___ Sunday.
4. What ___ you do the day before yesterday
____ you ride a horse last week
was
were
was
did
Did
根据句意，用括号内所给词的适当形式填空。
1. What did the ______ (farm) say
2. Carol _____ (pick) some strawberries
and _____ (take) them home.
3. I ______ (visit) my grandparents in the
countryside.
4. I _______ (watch) the stars at night.
5. ____ (do) Carol take any photos
farmer
picked
took
visited
watched
Did
6. ____ he see any cows on the farm Yes, he did.
7. Did he milk a cow on the farm No, he ______.
8. Were the strawberries good Yes, they _______.
9. Did you see any cows
Yes, I did. I ___ quite a lot.
10. I ___ the chickens last week.
Did
didn’t
were
saw
fed
1. She often ____ (go) to the park on
weekends, but yesterday she ____ (go) to
the zoo.
2. Last week she ___ (have) fun on a farm.
3. What ___ they __ (do) on the school trip
They ____ (ride) horses and _______
(climb) the mountains.
I. 填入适当的词。
goes
went
had
did do
rode climbed
4. How ____ their school trip
It ___ interesting.
___ she __ (go) fishing Yes, she did.
5. ___ Li Ming ____ (pick) any strawberries No, he didn’t.
was
Did go
Did pick
was