内容正文:
Unit 2 Home Sweet Home
Section A What can you do for your home?(Grammar Focus)
主题情境·跟着哪吒学can和could
八年级上
At the end of the class, we are able to:
1. master the usage of can / could for polite requests and permission;
2. use can / could to make a conversation.
Learning Objectives
Master, look! I can control the Wind Fire Wheels now.
Ne Zha is playing in the yard, with Taiyi Zhenren nearby.
can
can表能力,意为“能,会”
When his mother walks by, Ne Zha wants to play with her.
Mom, can you play
shuttlecock(毽子) with me?
can
can表委婉的请求别人做某事,用于非正式场合
对于用情态动词can发出的邀请,回答时主要有两种情况:
情况 答语
接受 Sure/Yes, I’d love (like) to. 当然,我愿意。
Sure/Of course. 当然。
拒绝 Sorry, I’m not available. 对不起,我没空。
I’m sorry. I’m not free. I have to … 抱歉,我没空,我不得不……
I’d love to, but I’m afraid I can’t. I must …
我愿意,但是恐怕不行。我得……
I’d love to, but I’m a little bit busy now. If you feel bored, you can go out to play for a while.
can
can表许可,用于询问或给予许可(较随意)
Ne Zha arrived at the seaside and started playing with water using his magic, where he also met Ao Bing for the first time.
You are amazing! Ordinary people can be hurt by this power.
can
can表可能性,指某事可能发生或存在
Ne Zha and Ao Bing had a great time. They played shuttlecock and showed each other their skills. After playing for a while, Ao Bing had to leave because he had other things to do.
Ne Zha felt a little sad and thought to himself, “He’s so nice, and he can’t actually want to be my friend. Everyone is afraid of me.”
can’t
can表推测,意为“可能”,常用语否定句和疑问句中
On his way home, Ne Zha accidentally damaged some crops because he couldn’t control his magic power.
After returning home, Ne Zha told Taiyi Zhenren what had happened. Taiyi Zhenren came over to comfort him.
Don’t be sad! When I was your age, I could not control my magic either.
could
could表过去的能力,相当于 was/were able to
Master, could you tell me a story about your first friend?
Sure.
could
could表委婉请求别人做某事,比 can 更礼貌,用于正式或客气场合
Could I go to the beach again tomorrow to play with Ao Bing?
Could
could表请求别人允许自己做某事,比 can 更正式,用于礼貌询问
Of course, but he could not be there.
could
could表可能,比 can 更不确定,用于推测或假设
If he were there tomorrow, we could
practise magic together.
could
could用于虚拟语气,表示假设或想象的情况(常与 if 连用)
情态动词 can / could 用法总结
用法 Can Could
能力
请求
许可
可能性
虚拟语气
现在的能力
过去的能力
较随意
更礼貌
较直接
更委婉
较确定
较不确定
不适用
适用
Although Ne Zha was worried that he might not see Ao Bing again, he believed they would be best friends when they met next time.
3a Read the questions with can or could. Notice how they are answered. Then write R for requests or P for permission next to each question.
Could you please sweep the floor? OK, Mum. I’ll do it at once.
Could I hang out with
my friends after lunch? Sorry, Jim, but you have to
pack up your things first.
Can I put some flowers on the table? Yes, good idea!
Can you help me hang up the photos? Sure. / No problem!
R
P
P
R
用 can 或 could 填空。
1. ________ you pass me the salt, please? (礼貌请求)
2. I ________ ride a bike when I was six. (过去能力)
3. ________ I watch TV now? (请求许可)
4. It ________ snow tonight. (可能性)
5. If I had money, I ________ buy a new computer. (虚拟语气)
Could
could
Can
could
could
3b Choose the best question to complete each conversation.
A. Could you give me a ride to town now?
B. Can I stay out until eleven?
C. Mr Lake, can I use your toilet?
D. Could I use your computer?
1. A: __________________
B: Of course you can. Let
me show you the way.
prep. /ənˈtɪl/
C
A. Could you give me a ride to town now?
B. Can I stay out until eleven?
C. Mr Lake, can I use your toilet?
D. Could I use your computer?
2. A: ___________________
B: Yes, if you are careful
with it.
3. A: ___________________
B: No, you can’t. You have a basketball game tomorrow,
remember? You need a good rest.
be careful with
D
B
A. Could you give me a ride to town now?
B. Can I stay out until eleven?
C. Mr Lake, can I use your toilet?
D. Could I use your computer?
4. A: Can I go to the movies?
B: Of course.
A: ____________________
B: I can’t, I have to do some
work now.
n. /ˈmuːvi/
A
1. You are at your friend’s home. You want to call your parents, but
your phone is dead.
A: Can / Could I use your phone? B: Sure. / Of course.
3c Make up conversations for each setting, using can or could.
adj. /ded/
2. You were sick at home yesterday. Your friend went to an English
class and took notes. You want to know more about the class.
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
n. /nəʊt/ take notes
A: Can you tell me what we learned in English class yesterday? I was sick.
B: Sure! We practiced past tense verbs. Here are my notes—you can use them.
3. You are holding a large box. It is difficult to open the door. Your
neighbour comes.
_________________________________________________________
_________________________________________________________
A: Could you help me open the door?
B: No problem!
4. You and your classmates want to help clean up the community. Ask
your classmates to bring gloves and rubbish bags.
_________________________________________________________
_________________________________________________________
_______________________________________
______________________________________
n. /kəˈmjuːnəti/
n. /ˈrʌbɪʃ/
A: Can everyone bring gloves and rubbish bags tomorrow? We’ll need them for the cleanup.
B: Yes, I/We can! I/We’ll bring extra bags.
Good idea! I/We’ll bring some gloves.
一、选词填空。
Exercises
movie dead until community rubbish
1.(2025陕西改编) Lisa stood at the window and watched ________ it was getting dark outside.
2. We should put the _________ in the bin to keep our park clean.
3. My phone is ________, so I can’t call my parents right now.
4. Our ___________ center is organizing a charity event this weekend.
5. Let’s watch a ________ tonight!
until
rubbish
dead
community
movie
二、完成句子。
1. (2025白银改编) 史蒂文决定在地球日与其他志愿者一起清理城市公园。
Steven decided to _______ ______ the city parks with other volunteers on Earth Day.
2. 做饭时要小心用刀,不要切伤手指。
_______ _______ _______ the knife while cooking, and don’t cut your fingers.
3. 老师说:“请在科学课上记笔记,以便稍后复习用。”。
“Please _______ _______ during the science class so you can review later,” the teacher said.
Be careful with
take notes
clean up
三、用 can/could/can’t/couldn’t 填空。
Last summer, I (1) ________ swim, but now I (2) ______ swim well! Mom says I (3) _______ go to the pool alone. Yesterday I asked, “(4) _______ you come with me?” She smiled, “Yes, but we (5) _______ stay too late.”
couldn’t
can
can’t
Could
can’t
1. Grammar:
master the usage of can / could for polite requests and permission
2. Words and expressions:
until, movie, the movies, dead, note, community, rubbish, be careful with, take notes, clean up
Summary
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