Unit 13 We're trying to save the earth! Section A (Grammar Focus～4c)课件(共38张PPT)

(共38张PPT)
Unit 13 We're trying to save the earth!
第三课时 Section A (Grammar Focus～4c)
目录
01
02
名师点拨
课前预习
03
课堂小测
04
课后作业
课前预习
1. 承担得起(后果)；买得起 v. __________________
2. 可重复使用的；可再次使用的 adj. ______________
3.运输业；交通运输 n. ________________________
核心单词
afford
reusable
transportation
4. 参加 ______________________
5. 关掉 _____________________
6.付费；付出代价 _________________
7. 采取行动 ___________________
常考短语
take part in
turn off
pay for
take action
8. 你曾经参加过环境保护项目吗？
____________________________________ an environmental project
9. 是的，我们再也承担不起等待的后果，要采取行动了!
Yes, we can't _____________________________________ take action!
典型句子
Have you ever taken part in
afford to wait any longer to
名师点拨
1. 一般现在时
5
时态的总结
—Are you a teacher 你是老师吗？
—Yes, I am. 是的，我是。
—Where does Charles study 查尔斯在哪里学习？
—He studies in No.2 Junior High School. 他在二中读书。
2. 一般过去时和used to表示的过去时
(1)一般过去时
—Who were you with last night 昨晚你跟谁在一起？
—I was with Julie last night. 昨晚我跟朱莉在一起。
—Where did Frank go just now 刚才弗兰克去哪里了？
—He went to the library. 他去图书馆了。
(2)used to表示的过去时
They didn't use to cut down bamboo on this hill. 他们过去不常在这座山上砍竹子。
There used to be plenty of fish at the bottom of the river. 这条河的河底以前有很多鱼。
3.一般将来时
Shall we leave a note for her 我们要不要给她留一
张便条？
The police will come soon. 警察很快就要来了。
There is going to be a heavy rain in two hours. 两小时后将会有一场大雨。
We're leaving early tomorrow morning. 明天一大早我们就出发。
4. 现在进行时
—Where's Bert 伯特在哪？
—He is playing tennis on the playground. 他正在操场上打网球。
5.过去进行时
—What were you doing when the sandstorm came 沙尘暴席卷而至时你们正在做什么？
—We were riding bikes on the street. 我们正在街上骑自行车。
6.现在完成时
Our actions have made a big difference so far. 至今为止，我们的行动已经产生了很大的影响。
She hasn't used wooden chopsticks for two months / since two months ago. 她已经两个月不用木筷子了。
( )1. —I will go swimming this afternoon, Daming.—If you go, so _______ I.
A. will B. do
C. am D. have
专 练
A
( )2. —Where does Bill live？
—He _______ me his address, but I can't remember it now.
A. tells B. told
C. is telling D. will tell
B
( )3.The teacher told us the earth _______ the sun.
A. goes around B. went around
C. is going around D. would go around
A
( )4. Students in Class One _______ for the singing competition at the moment.
A. prepare B. are preparing
C. prepared D. are going to prepare
B
( )5. —Alice, you weren't in the classroom at four o'clock yesterday afternoon.
—I _______ English grammar with Linda in the library at that time.
A. go over B. went over
C. am going over D. was going over
D
( )6.—Yunnan is very beautiful. I _______ there last year. —I _______ there twice.
A. went； have gone
B. went； have been
C. have gone； went
D. have been； went
B
( )7. Li Hua used to _______ in the morning, but now he is used to _______ in the evening.
A. read; read B. reading; reading
C. read; reading D. reading; read
C
afford作动词，意为“承担得起 (后果); 买得起”，常与can, be able to等连用, 多用于否定句或疑问句。常用搭配有：afford sth. 意为“买得起某物；承受得起某物”；afford to do sth. 意为“有能力做某事；负担得起做某事”。如：
Can you afford the car 你买得起这部车吗？
We can't afford to pay such a price. 我们付不起这样的代价。
6
afford的用法
【拓展】afford与buy的区别
比较项 用法 举例
afford 侧重有经济能力“购买” He can afford a mobile phone. 他有能力买得起一部手机。
buy 侧重“购买”这一行为 He wants to buy a mobile phone. 他想买一部手机。
用afford或buy的适当形式填空
1. They can't ______________ to send their children to the college.
2. None of them could ______________$50 for a ticket.
3.Helen ______________ some fruit on her way home yesterday.
专 练
afford
afford
bought
一、根据中文意思或首字母提示，用单词的适当形式填空，每空一词
1. We can't ______________ (承担得起) to go abroad this summer.
2. What do you think of the ____________________ (交通运输) in your city
课堂小测
afford
transportation
3.This kind of material is ______________ (可重复使用的). Don't throw it away.
4. We must take ______________ to protect the environment.
5.How much did you ______________ for the computer
reusable
action
pay
二、根据要求完成句子，每空一词
6.She joined in the army almost 10 years ago. (改为现在完成时)
She ______________ ______________ ______________ the army ______________ almost 10 years.
has
been
in
for
7. I will go to Beijing next week. （就画线部分提问）
______________ ______________ ______________ go next week
8. Ken used to be afraid of dogs. (改为一般疑问句)
______________ Ken ______________ ______________ ______________ afraid of dogs
Where
will
you
Did
use
to
be
9. The students read in the classroom now. (改为现在进行时)
The students ______________ ______________ in the classroom now.
10. He was repairing his bike. (改为一般疑问句,并作否定
回答）
—___________ ____________ ___________ his bike
—______________, ______________ ______________.
are
reading
Was
he
repairing
Yes
he
was
三、单项填空（语法专练）
( )11. —Lily, what do you usually do after school？
—I _______ exercise with my friends.(2021北京)
A. do B. did
C. will do D. was doing
A
( )12. —Did you see Dorothy？ She just came back from abroad.
—Yes. But she _______ someone， so I nodded to her and went away.(2021内蒙古)
A. phones B. is phoning
C. was phoning D. has phoned
C
( )13.My parents and I _______ trees last Sunday.(2021北京)
A. plant B. will plant
C. are planting D. planted
D
( )14. —Why are you in such a hurry？
—Because the class _______ for 10 minutes.(2021襄阳)
A. has been on B. has begun
C. is on D. begins
A
( )15.—There _______ a basketball game against Class Two this Sunday.
—I see. I will come and cheer you on.(2021乐山)
A. will have
B. is going to be
C. is going to have
B
课后作业
此部分习题详见独立装订的《课后作业》。请同学们完成《课后作业》Unit 13 第三课时的练习题。
THANKS!