Unit 13 We’re trying to save the earth 语法知识 课件(共24张PPT)

(共24张PPT)
Unit 13
We’re trying to save the earth
语法知识
1
九年级-下册-Unit13
现在进行时五种用法总结
2
九年级-下册-Unit13
Look! What are they doing now
They are playing basketball now.
She is running now.
be (am/is/are) +doing
Present progressive 现在进行时
I’m studying now.
表示说话时正在进行的动作，强调
“此时此刻”
标志性词：look/ listen/ now/ at the moment
Look! They are playing basketball now.
Tom is running now.
看！ 他们正在打篮球。
汤姆正在跑步。
be (am/is/are) +doing
2. 表示现阶段正在进行的事情，
不一定说话时正在进行
He is writing a novel these days.
他这些天正在写小说。
We are planting trees this month.
这个月我们在植树。
标志性词：at present ,this week ,these days
3. 表示按计划或安排将要发生的事，用进行时表将来。
come , go, leave, start, take off, set off 等。
He is coming!
他要来了！
I’m leaving for Bei Jing.
我马上要离开去北京了。
瞬间动词
4.表示渐变
get, grow, become, turn, go等
系动词
The leaves are turning red.
叶子在变红
It’s getting warmer and warmer.
天越来越热了。
5. 与always, forever 等连用,带人的主观色彩。
反复发生的动作或持续存在的状态
You are always changing your mind.
你老是改变主意。
He is forever thinking of others.
他心里总是考虑着别人。
1.It's 7o'clock now．Tom ______ dinner at home．
A．is having B．has C．have D．not having
2.﹣Hi，Jane，tell you a piece of good news．I ____ America tomorrow．
﹣Wow，have a good trip!
A．will leave to B．leaves for
C．am leaving for D．going leaving for
3.﹣﹣﹣Hey，Tom．Let's go swimming．
﹣﹣﹣Just a moment．I ______ a message．
A．send B．sent C．am sending D．have sent
1.表示说话时正在进行的动作
3. 进行时表将来
实战演练：
4.What lesson ____ you ___(study) this week
5.She___ always _____(help) people.
helping
studying
are
is
6. The weather _________ (get) colder and colder.
is getting
2.表示现阶段正在进行的事情
5. always, forever 等连用,带人的主观色彩
4.表示渐变
实战演练：
1. Where is Mr. Wang
--Oh, he ______(read) a news paper in the office.
2. Be quiet please! My little sister ______(sleep) .
3. Is that boy Jack
--No, Jack __(do) his homework in the classroom.
易错点：
is reading
is sleeping
is doing
2.______ you _______(meet)Bill this evening
1.He ________always ________(cause)trouble.
4. May I see your ticket please I think you _____ in
my seat.
--Oh, you are right. I'm terribly sorry.
A.sit B. are sitting C. will sit D. sat
他总是惹麻烦。
你今晚将和比尔见面吗
难点突破：
causing
is
Are
meeting
3.The zoo keepers is worried because the number of visitors ______smaller and smaller.
A. become B. became C.is becoming D.have become
Summary:
表示说话时正在进行的动作，强调
“此时此刻”。
2. 表示现阶段正在进行的事情，
不一定说话时正在进行。
3. 表示按计划或安排将要发生的事，用进行时表将来。
4.表示渐变。
5.反复发生的动作或持续存在的状态。
be (am/is/are) +doing
一般现在时
14
九年级-下册-Unit13
一：一般现在时可表示经常性或习惯性的动
作，常与often，usually，always，
sometimes，every day等连用。
二：一般现在时可表示现在的情况或状态。
三：如果主句为一般将来时，在时间、条件
状语从句中，用一般现在时表示将来。
四：表示客观事实或永恒的真理。
教学过程
一般现在时的用法
一般现在代替将来时的条件 一般现在时的用法
条件①：可以以条件状语从句为语境前提。 在时间状语从句和条件状语从句中，主句为将来时，从句可用一般现在时代替将来时。
条件②：可以以时间状语从句为语境前提。
条件③：主句和从句的事情都还没发生。
条件④：主句为将来时，从句用一般现在时
记忆技巧：“条”和“时”是状从，一般“现在”替“将来”。
( ) 1. —Tina, breakfast is ready. Dad cooked
it for us.
—It can’t have been Father. He ______
early on Sundays.
A. always gets up B. often got up
C. had got up D. never gets up
D
( ) 2. —What do you often do at weekends
—I often ______ my grandparents.
A. visit B. visited
C. have visited D. will visit
( ) 3. In Chongqing, you can often see many
people dance outside together if it ______
in the evening.
A. rains B. doesn’t rain
C. will rain D. won’t rain
B
A
( ) 4. —Do you know whether David will
go cycling or not tomorrow
—David Never! He ______ outdoor
activities.
A. hates B. hated
C. is hating D. has hated
A
5. Don’t worry. Bill will help you look after
your dog when you ________ away on
business.
A. are B. were C. will be D. have been
6. Our geography teacher told us that the
earth _____ the sun.
A. went around B. goes around
C. is going around D. was going around
A
B
( ) 7. Alice prefers stories that ________
short and funny.
A. are B. is C. was D. were
( ) 8. —Who is that lady
—She’s Miss Green. She ________ us
music, and she is so good.
A. taught B. teaches
C. will teach D. is teaching
A
B
( ) 8. —Oh, no! I can’t find my mobile
phone!
—Well, where ________ you last put it
A. have B. do C. did
( ) 9. —Have you ever climbed Mount Tai,
Carol
—Yes, I ________ in Taian for a week
last year and reached the top of it
twice.
A. had stayed B. stay
C. stayed D. have stayed
C
C
( ) 10. Last week Vivian ________ a dress for
her mother with her first-month salary.
A. buy B. bought
C. will buy D. would buy
( ) 11. —I have ever seen Alice in
Wonderland II (《爱丽丝梦游仙境II》).
—When ______
—Two weeks ago.
A. did you see it B. have you seen it
C. do you see it D. will you see it
B
A
谢谢聆听