资源简介

(共28张PPT)
R
P
Request
Permission
Can
Could
What is Request and Permission
What’s the difference between Can and Could
Can/Could for polite request and permission.
What is Request and Permission
"Hi! I'm Request. Call me 'Little R'! I'm all about asking others to do things—like “Could you help me '”Remember: if a sentence wants you to take action, that's me!"
"Hey! I'm Permission, or 'Little P'! When you want to do something and ask “Can I... ”， that's me!
What is Request and Permission
《请求许可一句诀》
“求你做是请求，求己做是许可”
例 1（请求）：Could you help clean the room （求你帮忙）
例 2（许可）：Can I buy a gift for Grandma （求己买礼物）
What is Request and Permission
Could you please sweep the floor Yes, Dad. 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!
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.
3a
R
P
P
R
Request
Permission
P
R
P
R
R
P
R
Listen to the sentences and tell us it is R or P
P
Request
“Could you (please)+v原.../Can you+v原 ” 意为 “能请你……吗？”，用于提出要求或请求。
肯定回答
Yes, sure./Certainly. 是的，当然可以。
No problem. 没问题。
With pleasure. 乐意帮忙。
Of course I can. 当然可以。
否定形式为 Could you (please)/Can you not+v原...
Request
Sorry, I can't. I have to... 对不起，我不能，我得……
Sorry, I'm going to ... 对不起，我将……
I'm afraid I can’t. I have to... 我恐怕不能。我得……
—Could you please go hiking with me tomorrow
—Sorry, I can't. I have to prepare for an exam.
否定回答
肯定回答及否定回答中,均不用could,而是要用can代替could。
Permission
“Could/Can I... ”意为“我能……吗？”，用于请求对方允许自己做某事。
—Could I have a look at your new watch
—Of course you can. Here you are.
—Mum, could I go out for dinner
—I'm afraid you can't. You have to wash your clothes first.
Yes, you can. / Of course you can. /Yes, please.
Sorry, you can't. /I'm afraid you can't. /No, you can’t.
否定回答
肯定回答
回答一般只用
can，而不用could。
Can you/I...
语气：直接、日常，适合熟人或同辈之间。
Could you/I...
语气：更礼貌、委婉，适合对长辈、老师或不太熟悉的人。
What’s the difference between Can and Could
1. Lisa: Hi, Mike! ____________ you please pass me the eraser I need to correct my homework.
2. Tom: Mum, ______________ I watch a cartoon after finishing my homework It’s my favorite show.
3. Lily: Excuse me, Miss Wang. ______ you help me with this math problem I can’t understand it well.
4. Jim meets a new classmate, Amy. He wants to be friendly.
Jim: Amy, _________ I know your favorite subject We can talk about it.
根据语境选 can 或 could 填空
Can/Could
could
Could
could
could的其他用法
could 表示过去的能力，表示现在的能力用can。此时could是can的过去式。
I can speak English very well.
I could play the piano when I was 4 years old.
表示能力
表示建议
You could go to the station by subway.
You can do housework for your mother.
“You could/can...” 表示提建议，意为“你可以……” 。
could的其他用法
（could 更委婉）
1. —______ you remind Sally not to wear her school uniform for
the picnic tomorrow
—OK. I'll tell her.
A. Must B. Should C. Can D. Need
2. —Could you please help me with my homework
—Yes, I ______.
A. must B. could C. need D. can
3. —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
Exercises
4. —Mum, ______ I go shopping with you
—Yes, you ______. But you have to finish your homework first.
A. could; can B. could; could C. must; can D. must; could
5. —Bill, ______ I use your ruler
—Of course you can. Here you are.
A. can B. must C. need D. should
6. The lovely boy ______ ride the bike at the age of six.
A. must B. could C. need D. should
Exercises
until
be careful with
movie
the movies
dead
note
take notes
clean up
community
rubbish
New words
prep.到 … 时；直到 … 为止
注意；当心
n.电影
电影院； 电影产业
adj.不运行的；死的
n.笔记；记录；便条；v.注意；指出
做笔记
清扫
n.社区；社团
n.垃圾(不可数名词)
take out the rubbish 倒垃圾
see/go to a movie 看电影
clean it/them up
3b
Can/Could for polite request and permission.
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.
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.
4. A: Can I go to the movies
B: Of course.
A: _____________________
B: I can’t. I have to do some
work now.
3b
Can/Could for polite request and permission.
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
2. A: ________________
B: Yes, if you are careful with it.
P，问句中为Can/Could I
B,C或D
答案为：D
3b
Can/Could for polite request and permission.
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
3. A: _____________________
B: No, you can’t. You have a
basketball game tomorrow,
remember You need a
good rest.
P，问句中为Can/Could I
B或C
答案为：B
3b
Can/Could for polite request and permission.
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
4. A: Can I go to the movies
B: Of course.
A: _____________________
B: I can’t. I have to do some
work now.
R，问句中为Can/Could you
答案为：A
结合句意检查无误
3b
Can/Could for polite request and permission.
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.
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.
4. A: Can I go to the movies
B: Of course.
A: _____________________
B: I can’t. I have to do some
work now.
C
D
B
A
3c
Make up conversations for each setting, using can or could.
1. You’re 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.
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.
___________________________________________________________
3. You are holding a large box. It is difficult to open the door. Your neighbour comes. ___________________________________________________________
4. You and your classmates want to help clean up the community. Ask your
classmates to bring gloves and rubbish bags.
____________________________________________________________
3c
Can/Could for polite request and permission.
Make up conversations for each setting, using can or could.
2. 场景 2（生病缺课，借笔记 ）
A（委婉版）：Could I have a look at your English notes
B（同意）：Sure! Here you go.
A（直接版）：Can I borrow your English notes
B（同意）：Of course.
3. 场景 3（搬箱子开门难，请帮忙开门 ）
A（礼貌求助）：Could you please help me open the door
B（同意）：Sure !
A（日常口语）：Can you give me a hand with the door
B（同意）：Of course.
3c
Can/Could for polite request and permission.
Make up conversations for each setting, using can or could.
4. 场景 4（号召同学带清洁工具 ）
A（正式倡议）：Could you bring gloves and rubbish bags
B（同意）：Sure, no problem.
A（直接请求）：Can you bring gloves and rubbish bags
B（同意）：Of course we can.
3c
Can/Could for polite request and permission.
Make up conversations for each setting, using can or could.
Language points
1. Can I stay out until eleven
until prep.到......时；直到......为止
not...until... “直到......才......”，常与非延续性动词连用，表示动作
直到until所表示的时间才发生。
e.g. They didn't have a car until last year. 他们直到去年才有一辆汽车。
拓展:conj.到······时；直到······为止 （引导时间状语从句）
e.g. You will never truly understand your parents' great love until you
grow up. 直到你长大后，你才会真正理解父母伟大的爱。
练习：Mr. Peter ______ go to bed ______ he finished his work last night.
A. wasn’t; until B. don’t; until C. didn’t; until D. isn’t; until
Language points
2. be careful with 注意；当心
e.g. Be careful with the knife while cooking, and don't cut your fingers.
做饭时小心用刀，不要切伤手指。
拓展：(1) be careful (not) to do sth. “小心(不要)做某事”。
e.g. Be careful not to wake the baby. 注意别吵醒婴儿。
(2) be careful 可单独使用，表示“小心，当心”，
相当于look out 或watch out。
e.g. Be careful — the floor is slippery. 小心——地板很滑。
练习：当你切碎西红柿时，当心你的手指。
When you cut up the tomatoes, please ________________ your finger.
be careful with
Language points
3. You are at your friend’s home. You want to call your parents,
but your phone is dead.
(1)dead adj.（因为缺电）不运行的
e.g. My phone is dead, so I need to charge it.
我的手机没电了,所以我需要给它充电。
(2)dead adj.死的,在句中作定语或表语。the dead 死者
e.g. There were dead leaves on the ground after the strong wind.
大风过后枯叶落了一地。
I'm afraid he is dead. 恐怕他已经去世了。
【拓展】die v.死亡 dying adj.要死的 death n.死讯
R
P
Thank You

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