Unit 2 Home Sweet Home Section A Grammar Focus语法课件【人教版2024八上英语】

(共14张PPT)
（人教2024版）八年级上
Section A Grammar Focus(3a-3c)
Unit 2
Home Sweet Home
Review
What children want to do What parents want them to do
hang out with friends after lunch
sort things into boxes
keep some fish
take care of them every day
help me hang up the photos
grow some flowers
sweep the floor
invite friends to our new house
help me clean up the room
help put the new clock on the wall
move this chair to their room
put some flowers by the window
take me to the flower shop later
Do you still remember how they
start the conversation
Can / Could I do …
Can / Could you (please) do …
Ask for permission.
（征求许可）
Make polite requests.（礼貌地请求）
R
P
P
R
can / could 都可表示能力、请求允许和给予许可，以及提出请求和建议
Could you please do sth.
Could you please not do sth.
Sure. / Certainly. /Of course.
/ No problem. / With pleasure…
Sorry, I can’t. /I’d love to, but I…
回答：
以could引出委婉请求时,答语中不用could,用can
=
right now
right away
Can/Could表请求/允许的用法
情态动词can/could构成的句型可用于向对方委婉地提出请求或征求对方的许可。它们本身不能作谓语，只能和动词原形一起构成谓语。
1.用于委婉地
请求别人做某事
常用句型 Could you (please) do sth
Can you do sth
肯定答语 OK./Certainly./Of course./With pleasure./
No problem./Yes, sure. / …
否定答语 Sorry, I can’t. I have to…/I’m afraid not./ I’m afraid I can’t. I have to… / …
2.用于委婉地请求
别人允许自己做某事
常用句型 Can / Could I do sth
肯定答语 Yes, good idea. / Yes, you can. /
Certainly. / Yes, please. / …
否定答语 Sorry, you can’t./I’m afraid you can’t. / …
无论是“Could you (please) ... ”还是“Could I ... ” ，问句中的 could 都可用 can 来代替，但是 could 更委婉。且答语中一般都避免使用 could 来回答。
注 意
(1)could 为 can 的过去式，表示能力。
He could ride a bike at the age of five。 他五岁时就会骑自行车了。
拓 展
(2)表示可能性，指对过去、现在或将来的某种可能的推测。
The book could be Lily’s because she likes reading books.
那本书可能是莉莉的，因为她喜欢看书。
(3)表示建议。
You could go there by bus. 你可以乘公共汽车去那儿。
1. —My English is poor. Could you help me with it —_________________.
A. Thank you B. Me, too C. No problem D. See you

一、单项选择。
语法精练
2. —Mom, could I surf the Internet after finishing my homework
— __________.You’d better go out for a walk.
A. Go ahead B. Sorry, you can’t C. Of course you can

3. — ________ you give me a hand I can’t move the box by myself.
—No problem.
A. Could B. Should C. Must D. Need

4. — Helen, could you please water the flowers in my garden
—_________. They are so lovely.
A. That’s too bad B. With pleasure
C. You’re welcome D. I’m afraid not

1. Could you please ______ (take/taking) out the rubbish
2. David, my pen is broken. ______ (Should/Could) I use yours
3. _______ (Can/Could) you play basketball when you were in primary school
take
Could
二、选词填空。
Could
4. — Could you please sweep the floor, Jenny
—Sorry, I ______ (can’t/couldn’t). I’m doing my homework.
5. —Could I give away these books to the poor children, Dad
—Sure, you _____ (can/could).
can’t
can
C
D
B
A
=give sb. a lift
be careful with 注意;当心
until prep. 直到
not…until… 直到…才…
eg:
I won’t go until you come back.
movie n. 电影
the movies 电影院;电影产业
stay out late 晚归;在外面待的晚
of course 当然，相当于sure或certainly，通常在对话中用作肯定回答。
dead adj. 不运行的; 死的
death n. 死亡
die v. 死
dying adj. 垂死的
take notes 做笔记
neighbour n.邻居; 街坊
neighbourhood n.街区
=community=block
ask sb. (not) to do sth.
要求某人(不)做某事
rubbish n.垃圾
take out the rubbish 倒垃圾
Can / Could you lend me your notes of the class
Can / Could you help me open the door
You can / could bring gloves and rubbish bags.
It’s + adj.+ to do sth. 做某事是……的。
it是形式主语，真正的主语是后面的动词不定式短语。
It’s important to follow the rules. 遵守规则很重要。
School Cleaning Day is coming. If you are the leader of your group, make a schedule for the cleaning plan.
Name Do what
A: Could you please …, Tom
B: Sure.
A: Could you please…, Lucy
C: Sorry, I can’t. I have to…
…
…
Group work
1.打包;收拾 v. ________
2.浴室;洗手间n. ____________
3.把…分类;整理 ;种类n. _______
4.阳台 n. ___________
5.挂 v. ________
6.邀请 n. _______ →邀请;请柬n. ____________
7.到达n. __________ →到达v. ________
8.还;但是(用于否定句和疑问句)adv. ______
9.添加;加v. ______ →加法;添加n. __________
10.饼干n. _________
11.借(入)v. __________
12. 借(出)v. ______ →过去式_______
13.计划 v./n. _______
14. 财富;财宝 n. 珍视v. __________
15.搜寻;狩猎;打猎 n. / v._______
16.搭便车;电梯n. 举起;抬起v. _____
17.直到…为止 prep. _______
18.电影n. _______
19.不运行的;死的adj._______ →死 n. _______
→死v. ____ →垂死的adj. ________
20.邻居n. _____________
21.社区,社团n. _____________
22.垃圾n. __________
pack
bathroom
sort
balcony
hang
invite
invitation
arrival
arrive
yet
add
addition
biscuit
borrow
lend
lift
until
movie
dead
death
die
dying
neighbour
community
rubbish
plan
treasure
hunt
lent
重点词汇：
Homework
1. Review the new words and phrases.
2. Review the usage of could and can.
3. Make up sentences to ask for permission and
make polite requests.