资源简介

(共30张PPT)
Unit 2 Home
Sweet Home
Grammar Focus
教学目标
通过语法表格，引导学生掌握表示提出请求与请求许可方面的句型；
引导与培养学生如何有礼貌地提出请求与得到相应的答复。
引导学生掌握can/could情态动词其他方面的用法。
引导学生进行不同情景练习，加强语法记忆巩固。选择适合的学习策略，如多观察，多反思；多记笔记，多背诵等。
Free talk
What can you help with at home
activities
clean up the living room
sweep the floor
make the bed
water the flowers
take out the rubbish
take the dog
for a walk
...
hang out with friends after lunch
keep some fish
grow some flowers
invite friends to our new house
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 …
Ask for permission.
（征求许可）
sort things into boxes
take care of them every day
help me hang up the photos
sweep the floor
help me clean up the room
help put the new clock on the wall
move this chair to their room
Can / Could you (please) do …
Make polite requests.（礼貌地请求）
Review and share
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!
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.
R
P
P
R
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.
3a
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!
Make polite requests
Ask for permission
Make polite requests
Ask for permission
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!
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.
R
P
P
R
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。can和could后加动词原形。答语中一般避免使用 could 来回答。
3a
at once = right away/now 立刻,马上
Read the sentences. Match the two parts.
Can I hang out with my friends after lunch
Can I grow some flowers there
Can I invite my friends to our new house
Could I go out
Could we keep some fish here
Can you sort your things into those boxes
Can you take care of them every day
Could you please help me hang up the photos
Could you please sweep the floor
Make polite requests
提出请求
Ask for permission
请求许可
How to make polite requests
How to ask for permission
Can you… 或Could you please… 用于提出要求或请求。
Can / Could I … 用于请求对方允许自己做某事。
How are they answered
How are they answered
Observe and think!
Can you… 或Could you please… 用于提出要求或请求。
肯定回答 Yes, I’ll do it at once. 是的，我立刻做。
No problem. 没问题。
With pleasure. 非常乐意。
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，我打算……
I’m afraid I can’t. I have to… 恐怕不行，我得……
I’m afraid not. 恐怕不行。
Read and learn
How to make requests and ask for permission
表示“请求”，委婉地请求别人做某事
常用句型：Can/Could you (please) +动词原形+其他
表示“请求许可”，委婉地请求别人允许自己做某事
常用句型：Can/Could I + 动词原形+其他
否定句型：Can/Could you (please) not do sth.
拓 展
could 的其他用法如下：
(1)could 为 can 的过去式，表示能力。
eg: He could ride a bike at the age of five.
他五岁时就会骑自行车了。
(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. 用于提出要求或请求：Can/Could you please... （重点）
2. 用于请求许可：Can/Could I... （重点）
3. 用于请求或请求许可：could语气更委婉，有礼貌。
4. 用于表示能力：can表示现在的能力，could表示过去的能力。、温和（适用于正式或陌生
Summarize
情态动词can/could
Choose the best question to complete each conversation.
3b
A. Could you give me a ride to town now B. Can I stay out until eleven
C. Mr Lake, could I go to the toilet D. Could I use your computer
A: ______________________________
B: Of course you can.
A: ______________________________
B: Yes, if you are careful with it.
A: ______________________________
B: No, you can’t. You have a basketball game tomorrow, remember You need a
good rest.
A: Can I go to the movies
B: Of course.
A: ______________________________
B: I can’t. I have to do some work now.
C. Mr Lake, could I go to the toilet
D. Could I use your computer
B. Can I stay out until eleven
A. Could you give me a ride to town now
/ n t l/ prep. 到……时；直到……为止
注意；当心
movie
/ mu vi/ n. 电影
the movies 电影院；电影产业
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
A: ______________________________
B: Of course you can. Let me show you the way.
A: ______________________________
B: Yes, if you are careful with it.
A: ______________________________
B: No, you can’t. You have a basketball game tomorrow, remember You need a
good rest.
A: Can I go to the movies
B: Of course.
A: ______________________________
B: I can’t. I have to do some work now.
C. Mr Lake, can I use your toilet
D. Could I use your computer
B. Can I stay out until eleven
A. Could you give me a ride to town now
/ n t l/ prep.
到…时；直到…为止
be careful with 注意；当心
= be careful of/about 当心；留意
去看电影
stay out 待在外面
开车顺便送某人
need a good rest
需要好好休息
have a rest 休息一下
给你带路
干活
厕所
1. You’re 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.
_______________________________________________________________________
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.
_______________________________________________________________________
_______________________________________________________________________
Make up conversations for each setting, using can or could.
3c
A: Can / Could I use your phone B: Sure. / Of course.
A: Can / Could I borrow your notes B: Of course. Here are my notes.
A: Can / Could you help me open the door B: Sure. / Of course.
A: Can / Could you bring gloves and rubbish bags for cleaning up the community
B: Sure. / Of course.
/ded/ adj. 不运行的；死的
note /n t/ n. 笔记；记录；便条
v. 注意；指出
take notes 做笔记
清扫
/k mju n ti/ n. 社区；社团
rubbish / r b / n. 垃圾
Pair work: Choose one setting from your daily life, then make a long conversation using can or could.
Sure/Of course/Certainly.
Yes, you can./With pleasure.
I’m afraid not. /Sorry, I’m afraid you can’t.
Sorry, I can’t. I have to...
Child: Mom, could you help me open this jar
Parent: Sure! Can you twist it first Child: I tried, but I can’t.
Parent: Okay, could you hold it steady while I open it
Child: Yes! Can we have cookies after Parent: If you can put the jar away, then yes!
Think about one setting in your daily life, then make a conversation using can or could，
1. Can I stay out until eleven 我可以在外面待到十一点吗？
(1)（介词）到……时；直到……为止后接具体的时间。
eg: She worked until 10 p.m. yesterday. 昨天她一直工作到晚上 10点。
(2)（连词）到……时；直到……为止 常用于引导时间状语从句。
eg: I waited until they finished talking. 我一直等到他们谈完为止。
He didn’t come out until the meeting was over.
主句
until引导的时间状语从句
主句
until引导的时间状语从句
Language Points!
2. You and your classmates want to help clean up the community.
你和同学们想要帮助清扫社区。
clean up 清扫，是“动词+副词”型短语，当人称代词作宾语时，需要放在clean与up之间。
eg: The yard is full of rubbish. Let’s clean it up.
院子里到处是垃圾。我们来清扫一下吧。
Language Points!
3. Can I stay out until eleven 我可以在外面待到11点吗？
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。
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
C
Language Points!
Language Points!
4. You are at your friend’s home. You want to call your parents,
but your phone is dead. adj. 不运行的；死的
与 dead 相关的其他单词：
die 【动词】死亡 过去式：died, 现在分词：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。
练习：His dog ________ last week and his ________ made him very sad.
A. died; die B. death; died C. died; death D. dead; death
C
5. Ask your classmates to bring gloves and rubbish bags.
请你的同学带上手套和垃圾袋。
rubbish 垃圾
（不可数名词）
rubbish bins 垃圾箱
rubbish sorting 垃圾分类
take out the rubbish 倒垃圾
household rubbish 生活垃圾
Tip:
Rubbish的同义词有：waste, litter, trash, garbage等。
一堆垃圾
a pile of rubbish
Language Points!
Let's learn and take notes.
note n. 笔记; 记录; 便条 v. 注意；指出
词
讲
练
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。（眉山中考）
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。
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。
例
高老师每节课都要求我们在笔记本上记笔记。
Miss Gao asks us to ______ _____ in the notebook every class.
take notes
(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
(2) 【可数名词】便条；短笺
(3)【及物动词】注意；指出 其后可跟名词、代词或that从句。
Summary
know how to answer the questions.
know the structures and functions of the sentences.
know the difference between can/ could.
Can/Could you… (Make requests)
Can/Could I… (Ask for permission)
1. 用于请求或请求许可：could语气更委婉，有礼貌。
2. 用于表示能力：can表示现在的能力，could表示过去的能力。
肯定回答：Sure./ Certainly./ Yes, I can./ Of course./ No problem...
否定回答：Sorry, I can’t. I have to…/Sorry, I’m going to...
肯定回答：Sure./ Yes, you can./ Of course, you can.
否定回答：Sorry, you can’t./ I’m afraid you can’t.
After learning this lesson,
I can
1. My car is broken. _______you please give me a lift
A. Must B. Need C. Should D. Could
D
2. — Could you please help me look after my pet dog I will be away for about two weeks.
— ________! I will take good care of it.
A. With pleasure B. You are kidding C. No way
A
3. —_______ you please take the dog for a walk
— OK, but I have to fold the clothes first.
A. Must B. Should C. Could D. May
4. — Mum, it's too hot. _______I swim in the lake with my friends
— No, you ______. That's too dangerous!
A. Could；mustn't B. Need；couldn't
C. Must；needn't D. Should；can't
C
A
句型转换。
1. She can fix the bike herself. (改为一般疑问句)
________ she ________ the bike herself
2. —Mike, could you lend me your dictionary (作肯定回答)
—________ ________. Here you are.
3. —Excuse me, could I open the window (作肯定回答)
—Yes, ________ ________.
4. He could solve the problem. (对画线部分提问)
________ ________ he ________
5. Lucy was able to ride a bike at six. (改为同义句)
Lucy ________ ________ a bike at six.
Yes sure
you can /of course
What could do
could ride
Can fix
Exercise-翻译
1. A：你能帮我拿一下书架上的书吗？ B：当然可以。
A: Could you get the book on the bookshelf for me B: Sure.
2. A：我可以借用你的词典吗？B：可以，但是请明天还给我。
A: Can I borrow your dictionary
B: Yes, but please return it to me tomorrow.
3. A：你能告诉我去图书馆的路吗？
B：沿着这条街走，在第二个十字路口右转。
A: Could you tell me the way to the library
B: Go along this street and turn right at the second crossing.
Why should we use more polite expressions in our daily lives
Because they shows respect for others and helps us get along better with people around us.

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