人教版九年级下册 Unit 14 I remember meeting all of you in Grade7. Section A 1a-2d 课件(共42张PPT)

(共42张PPT)
时　　　态
一、定义：
在英语中， 发生的　　　　　　　
动作要用不同的动词形式来表　　　　
　 示，这每一种不同的形式就叫做时态。
不同时间
二、时态的种类：初中常见的8种时态
一般现在时　　
一般过去时
现在进行时　　
过去进行时　　　　
现在完成时　　
一般将来时　　
过去完成时　　
过去将来时　
Lily
Lucy
What a fine day today! Look....
现在进行时: Present Progressive
概念: 表示现在正在发生的动作
结构: be (is, am, are) + doing
标志语： Look! 、 Listen! 、now
一般在动词原形后+ing
以不发音的e结尾的，去e，+ing
重读闭音节以一个辅音字母结尾的，双写这一字母+ing
动词-ing形式的构成：
writing
taking
getting
running
swimming
going
go
ask
write
take
get
run
swim
asking
The twins ___________(wash) the clothes now.
Look! He ________ (play) basketball over there.
Listen! ______ Sally _______(sing)
are washing
is playing
Is
singing
How often do you …
(once a week, twice…, never)
I have a friend. His / Her name is….
He / She plays….
一般现在时: Present Simple
概念: 表示习惯、经常性的动作
结构: do、 does
标志语：usually、often、never、
sometimes、once a week、
twice a month、every year
The twins ___________(wash) the clothes every day.
Sometimes he ________ (play) basketball over there.
How often ____ Sally ______(sing)
wash
plays
does
sing
我一到达那儿，就会给你写信。
——————————————————————
一般现在时的注意点:
1 、表客观事实或普遍真理
The earth _____ (go) round the sun .
2 、 在when ,as soon as, until, after, before等到引导的时间状语从句和if 引导的条件状语从句中, 用一般现在时表示将来.
If it doesn’t rain tomorrow, we’ll go on a picnic .
goes
如果明天不下雨，我们将去野餐。
———————————————————
I’ll write to you as soon as I get there .
-- What did you do last Sunday morning
-- I went to….
morning went…
afternoon visited…
night …
Last Sunday morning, my friend….
In the afternoon, he/she….
And at night, he/she…
morning went…
afternoon visited…
night …
一般过去时: Past Simple
概念: 表示过去发生的动作
结构: did
标志语：yesterday、... ago、
in 1992、 last week/month…
动词-ed形式的构成：
在动词后加-ed
以字母e 结尾的动词，只+d
“ 辅音字母+y ” ，变y 为i, 再+ed
重读闭音节以一个辅音字母结尾的，双写+ed
want
answer
move
die
carry
cry
stop
plan
wanted
moved
died
carried
cried
stopped
planned
answered
got
drank
took
went
swam
ate
cut
were
had
did
came
said
saw
put
get take
go swim
eat drink
are have
do come
cut put
say see
The twins ___________(wash) the clothes yesterday.
The day before yesterday he ________ (play) basketball over there.
_____ Sally ______(sing) two hours ago
washed
played
Did
sing
一般过去时的注意点:
1、当没有明显的时间状语时,描述几个相继发生过的动作
　I always got up too late , washed my face , had a quick breakfast and hurried to school .
2、since从句中常用一般过去时
You haven’t changed much since we last ______(meet) .
met
-- Have you packed … yet
-- Yes, I have packed ….
No, I haven’t …
pack the towels √
pack the camera X
… …
water the plants √
现在完成时: Present Perfect
概念: 表示已经发生的动作
结构: has / have + done
标志语：already、 yet、ever、
never、since…、for…、
get
go
eat
are
do
cut
say
got gotten
went gone
ate eaten
cut cut
were been
did done
said said
take
swim
drink
have
come
put
see
took taken
swam swum
drank drunk
put put
had had
came come
saw seen
The twins ___________(wash) the clothes for an hour.
He ________ (play) basketball since three years ago.
How long _____ Sally ______(sing) yet
have washed
has played
has
sung
现在完成时的注意点:
1. have been to , have been in 和 have gone to 的区别
2. 短暂性动词和持续性动词
1).Tom ____never____ to America
2).---- Is Tina at home
---- Sorry, she ________ Shanxi, and she ________Shanxi for three days.
译下列句子：
３、这本书他买了一年了
4、 这本书他借了三天了。
5、我们离开广州六年了。
He has bought this book for a year .
He has had this book for a year .
He has borrowed the pen for three days .
He has kept the book for 3 days .
We have left Guangzhou for 6 years .
We have been away from Guangzhou for 6 years .
×
×
×
短暂性动词不能跟表示一段时间的状语连用, 必须转变成持续性动词
Exercise
had had
She told me that she__________ (have)
this bike for three years.
过去完成时: Past Perfect
概念: 表示过去的过去已经发生的动作
结构: had done
标志语：by the time, 或主句为
一般过去时的宾语从句中
过去完成时的注意点:
用于宾词从句中，当主句的谓语动词是一般过去时时,一定要注意宾语从句中的时态变化。
He said that he _________the film many times.
had seen
--- Why didn’t you come and open the door for me, dear
--- Sorry, Jack. I ______ in the kitchen and didn’t hear you.
was cooking B. am cooking
C. wave cooked D. will cook
Exercise
过去进行时: Past Progressive
概念: 表示过去正在发生的动作
结构: be (was，were) + doing
标志语：at 8:00 yesterday 、
when、 while、…
过去进行时的注意点:
在when , while引导的时间状语从句中, 表示主从句中两个动作同时发生时, 用过去进行时表示 .
When my father got home, I _____ a letter to my friend. (2008宁波中考)
write B. am writing
C. wrote D. was writing
较长的动作
Exercise
will be
The radio says that it __________(be)
sunny tomorrow.
一般将来时: Future Simple
概念: 表示将要发生的动作
结构: will do、 shall do、
be (is、am、are) going to do
标志语：tomorrow、in..、next…
Look at the dark clouds, it _________rain.
Tomorrow _______ be a sunny day.
一般将来时的注意点:
will
is going to
过去将来时: Past Future Simple
概念: 表示过去将要发生的动作
结构: would do
be (was、were) going to do
标志语：常用于主句是一般过去
时的宾语从句中
is
comes
Is drawing
moved
didn’t have
used
has
studies
Will visit
Exercise
1.The volleyball match will be put off if it .
A . will rain B. rains C .rained D. is raining
2.---Do you want to see the film “Harry Potter ”
---The film “Harry Potter Ⅱ” I _____ it . It’s
very wonderful. (2008黄岗中考)
A.see B.have seen C.was seeing D.has seen
3.The boy ______________(not swim) in the river yet.
hasn’t swum
5.---Where is Liu Mei
--- She___________(go) home.
4.--- Where is your father
--- He ___________ (watch) TV in the room.
7.He asked what time they___________(do)
at eight last night.
were doing
8.I know that he _________(join) the army in1985.
joined
6.We don’t know if it ___________(rain) tomorrow. If it ________ (rain) tomorrow, we’ll not go for a picnic.
is watching
will rain
rains
has gone
9 .He’s not hungry. He_____ just________ (have) lunch.
11.---______the Blacks __________(visit) the Great Wall before
---Yes , they_________.
---When _______they _______(visit) it
---Only a month ago.
10. I’m sure he ____________(work) it out in one hour.
has
will work
Have
had
visited
have
did
visit
12.He___________(look) out of the window when the match______(begin).
Was looking
began
Composition: I
（你的过去、现在和将来）
Write an article about yourself, tell us your past、your present and your future.