資源簡介

(共29張PPT)
Unit 2 Home Sweet Home
Section A What can you do for your home
（Grammar Focus）
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
Warming Up
點擊播放視頻
Watch a video and see what you can learn from it.
Modal verb can
Presentation
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
1. 表示能力（Ability）
意為“能，會”，指現在具備的能力。
e.g. I can swim. 我會游泳。
Anna can speak Chinese. 安娜會說中文。
Can 的用法
2. 表示委婉的請求別人做某事（Request）
用于非正式場合，向對方提出請求。
e.g. Can you help me pick up my book 你能幫我撿起我的書嗎？
Can you lend me your pen 你能把你的鋼筆借給我嗎？
can 表示邀請時常用一般疑問句句式
結構為: Can+ 主語+ 動詞原形+ 其他？對于用情態動詞can發出的邀請，回答時主要有兩種情況：
情況 答語
接受 Sure/Yes, I’d love (like) to. 當然，我愿意。
Sure/Of course. 當然。
拒絕 Sorry, I’m not available. 對不起，我沒空。
I’m sorry. I’m not free. I have to … 抱歉，我沒空，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……
3. 表示許可（Permission）
用于詢問或給予許可（較隨意）。
e.g. Can I go to the bathroom 我可以去洗手間嗎？
You can play games after finishing your homework.
你做完作業后可以玩游戲。
4. 表示可能性（Possibility）
指某事可能發生或存在。
e.g. It can be very cold in winter. 冬天可能會很冷。
Bob can be late sometimes.
鮑勃有時可能會遲到。
5. 表示推測，意為“可能”
常用語否定句和疑問句中
e.g. Mary can’t be at home because she has gone to Beijing.
瑪麗不可能在家，因為她去北京了。
This can’t be true.
這不可能是真的。
Could 的用法
1. 表示過去的能力（Past Ability）
指過去能做某事（相當于 was/were able to）。
e.g. When I was young, I ________ run very fast.
我小時候跑得很快。
Linda ________ play the piano at the age of five.
琳達五歲時就會彈鋼琴。
could
could
2. 表示委婉請求別人做某事（Polite Request）
比 can 更禮貌，用于正式或客氣場合。
e.g. ________ you open the window, please
請打開窗戶好嗎？
________ you please not put your bike here
請不要把自行車放在這兒好嗎？
Could
Could
3. 表示請求別人允許自己做某事（Polite Permission）
比 can 更正式，用于禮貌詢問。
e.g. ________ I leave early today
我今天可以早點走嗎？
________ we sit here
我們可以坐這兒嗎？
Could
Could
4. 表示可能性（Possibility）
比 can 更不確定，用于推測或假設。
e.g. It ________ rain later.
等一下可能會下雨。
Andy ________ be at home now.
安迪現在可能在家。
could
could
5. 用于虛擬語氣（Hypothetical Situations）
表示假設或想象的情況（常與 if 連用）。
e.g. If I had more time, I ________ travel around the world.
如果我有更多時間，我就能環游世界。
Jack ________ pass the exam if he studied harder.
如果杰克更努力學習，他就能通過考試。
could
could
情態動詞 can / could 用法總結
用法 Can Could
能力
請求
許可
可能性
虛擬語氣
現在的能力
過去的能力
較隨意
更禮貌
較直接
更委婉
較確定
較不確定
不適用
適用
用 can 或 could 填空。
1. ________ you pass me the salt, please （禮貌請求）
2. I ________ ride a bike when I was six. （過去能力）
3. ________ I watch TV now （請求許可）
4. It ________ snow tonight. （可能性）
5. If I had money, I ________ buy a new computer. （虛擬語氣）
Instant Training
Could
could
Can
could
could
3b Choose the best question to complete each conversation.
Practice
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. / n t l/
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. / mu vi/
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.
Production
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. /n t/ 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. /k mju n ti/
n. / r b /
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、選詞填空。
Exercises
movie dead until community rubbish
1.(2025陜西改編) 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白銀改編) 史蒂文決定在地球日與其他志愿者一起清理城市公園。
Steven decided to _______ ______ the city parks with other volunteers on Earth Day.
2. 做飯時要小心用刀，不要切傷手指。
_______ _______ _______ the knife while cooking, and don’t cut your fingers.
3. 老師說：“請在科學課上記筆記，以便稍后復習用。”。
“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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