资源简介

(共32张PPT)
Unit 2
八上RJ
Home Sweet Home
Home Sweet Home
第3课时（3a-3c）
Section A What can you do for your home？
01
Learning goals
01
Learning goals
Unit 2
学习目标
掌握情态动词can和could的用法；
学习新词：until、movie、dead、community、rubbish等。
02
Warming up
02
Warming up
Unit 2
Make up conversations
—Can I play basketball with my friends after school
—Sorry. You have to do your homework first.
—Could you please take out the rubbish
—Sure./No problem!
03
Grammar Focus
03
Grammar Focus
Unit 2
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
Ask for request
Ask for request
Ask for permission
Ask for permission
情态动词can和could用法
情态动词can和could可用于向对方提出请求，也可用于请求对方允许自己做某事。它本身不能作谓语，必须和动词原形一起构成谓语。
1. 用于提出要求或请求
“Can/Could you please... ”意为“请你……好吗？”或“你能/可以……吗？”，用于提出要求或请求。常用答语有：
肯定回答 Yes, sure./Of course. 好的，当然可以。
No problem. 没问题。
With pleasure. 乐意帮忙。
Sure/Of course/Certainly. 当然可以。
否定回答 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... 恐怕不行。我得……
I’m afraid not. 恐怕不行。
—Can you please lend me your bike
请把你的自行车借给我好吗？
—Sure/Of course/Certainly.
当然可以。
—Could you please go hiking with me tomorrow
请你明天和我一起去远足好吗？
—Sorry, I can’t. I have to prepare for a competition.
对不起，我不能。我得准备一个比赛。
典例 —Can you go out with us tonight
—I’d love to, but I . I have to finish my work.
A. can’t B. mustn’t C. needn’t D. shouldn’t
解析：句意：“今晚你可以和我们出去吗？”“我愿意，但是我不能。我必须完成我的工作。” can’t不能；mustn’t 禁止；needn’t 不必；shouldn’t 不应该。根据“I have to finish my work.”可知，说话者要完成工作，不能答应对方的请求。故选A。
A
2. 用于请求许可
Can/Could I... ”意为“我能……吗？”，用于请求对方允许自己做某事。常用的答语有：
肯定回答 Yes, you can. 是的，你可以。
Of course you can. 当然可以。
Yes, please. 是的，去吧/用吧/……
否定回答 Sorry, you can’t. 对不起，你不可以。
Sorry, I’m afraid you can’t. 对不起，恐怕不行。
—Could I have a look at your new watch
我能看一下你的新手表吗？
—Of course you can. Here you are.
当然可以。给你。
—Mum, could I go out for a while
妈妈，我能出去一会儿吗？
—I’m afraid you can’t.You have to wash your clothes first.
恐怕不能。你得先把你的衣服洗了。
【特别提醒】
（1）表示提出请求或请求许可（即请求别人允许自己做某事）时，could 和can都可以用，但could语气更委婉。
Could/Can I come in 我可以进来吗
（2）对别人的请求给予许可时，一般只用can，而不用could。
—Could I use your pen 我可以用你的钢笔吗？
—Of course you can. 当然可以。
此处不能用could
3. 用于表示能力
表示现在的能力用can，表示过去的能力用could。此时could是can的过去式。
My sister can swim.
我的妹妹会游泳。
He couldn’t answer the question at that time.
他当时不能回答那个问题。
Exercise
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. The lovely boy ride the bike at the age of six.
A. must B. could C. need D. should
3. —Bill, I use your ruler
—Of course, you can. Here you are.
A. can B. must C. need D. should
C
B
A
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.
2. A:_____________________________
B: Yes, if you are careful with it.
C
D
/ n t l/ prep. 到……时；直到……为止
be careful with 注意；当心
3b Choose the best question to complete each conversation.
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.
B
A
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
电影院；电影产业
3c Make up conversations for each setting, using can or could.
1.You are at your friend’s home. You want to call your parents, but your phone is dead.
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.
A: Can/Could I use your phone
B: Sure./ Of course
A: Can/Could you tell me something about yesterday’s English class
B: Sure./ Of course
/ded/ adj. 不运行的；死的
take notes 做笔记
3c Make up conversations for each setting, using can or could.
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.
B: Surec./ Of course.
A: Can/Could you help me open the door
A: Can/Could you bring gloves and rubbish bags to clean up the community
B: Surec./ Of course.
/k mju n ti/
n. 社区；社团
/ r b / n. 垃圾
Unit 2
04
Language points
04
Language points
1. Can I stay out until eleven 我能在外面待到11点吗 (教材 P15 3b)
until / n t l/ prep. 到……时;直到……为止
(1) [介词]到……时；直到……为止
not... until...意为“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。
They didn’t have a car until last year.
他们直到去年才有一辆汽车。
(2)[连词]到……时;直到……为止
引导时间状语从句,表示动作或状态的延续。
也可用于 not...until...结构。
You will never truly understand your parents’great love unlil you grow up.
直到你长大后,你才会真正理解父母伟大的爱。
2. You want to call your parents, but your phone is dead. 你想给你的父母打电话,但你的电话没电了(教材 P15 3c)
dead /ded/ adj. 不运行的；死的
（1）[形容词]（因为缺电）不运行的
My phone went dead, so I need to charge it.
我的手机没电了，所以我需要给它充电。
（2）[形容词]死的 在句中作定语或表语。
the dead 死者
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】与dead相关的其他单词:
die [不及物动词]死亡，其过去式和过去分词均为 died,现在分词为 dying。是短暂性动词，不能与时间段连用。die of/from“死于”
death [名词]死亡
dying [形容词]垂死的;临死的 只能作前置定语。
【语境串记】
He has been dead for two years. He died of cancer. We were very sad about his death.
他已经去世两年了。他死于癌症。我们为他的去世感到很难过
3. Your friend went to an English class and took notes. 你的朋友去上英语课了并做了笔记。?（教材P15 3c）
note /n t/ n.笔记；记录；便条 v. 注意；指出
（1）[可数名词]笔记；记录
指“（听讲或读书等时的）笔记，记录”时，通常用复数形式notes。
take/make notes记笔记
Taking notes in class is a good way to help you review what you have learned.
课堂上做笔记是帮助你复习所学知识的好方法。
（2）[可数名词]便条；短笺
She always writes love notes as gifts to warm others.
她总是写爱心便条作为礼物温暖他人。
(3)[及物动词]注意；指出
其后可跟名词、代词或that从句。
He noted the time when they left the building.
他们离开大楼的时候，他留意了一下时间。
The teacher noted that the exam was very important.
老师指出这场考试非常重要。
Unit 2
05
Summary
05
Summary
情态
动词
can和could
could表示过去的能力，表现在的能力用can
Can/Could you please...
能请你……吗？
Can/Could I... 我能……吗？
用于提出要求或请求
用于请求
许可
表示能力
Unit 2
06
Homework
06
Homework
用情态动词can/could编对话。

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