資源簡介

(共23張PPT)
Unit2 Home Sweet Home
Section A
What can you do for your home
(3a-3c)
進一步梳理、歸納用 "Can/Could you... " 提出請求和 "Can/Could I... " 請求許可的句型結構，理解兩者在語氣和使用場景上的區別。
在具體語境中，對請求和許可做出恰當回應（如肯定回答 "Sure./No problem." 或否定回答 "Sorry, I can't..."）。
能在實際場景中（如求助、借物品等）靈活運用所歸納結構性知識進行禮貌交流。
Learning goals
Translate
等不及做某事
幫助某人做某事
在墻上
為某人買某物
在......前面
沒問題
讓人感到賓至如歸
把...加入...
1.can't wait to do sth.
2.help sb. do sth.
3.on the wall
4.buy sth. for sb.
5.in front of
6.no problem
7.make sb. feel at home
8.add sth. to sth.
Ask and answer in pairs
chores:
feed the fish
pack up things
sweep the floor
hang up photos
clean the bathrooms
water plants
walk the dog
make the bed
do the dishes
A： What chores can you do
B: I can feed the fish
Review 2a and say
When Jim’s parents wants their children to help them , what does he\she say
Jim, can you help me hang up the clock on the wall
Helen, could you move this chair to their room
Peter, can you help me clean up their room
can\could for polite requests
Read and sum up
can\could for polite _________
Could we keep some fish here
Can I grow some flowers there
Can I hang out with my friends after lunch
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 answered
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!
Write R for requests or P for permission next to each question.
R
P
P
R
can\could questions response response
for polite requests Can you take care of them every day？ Could you please help me hang up the photos Could you please sweep the floor Sorry, I have to …
for permission Could we keep some fish here Can I grow some flowers there can I hang out with my friends after lunch Yes,you can. OK. Sorry, you have to …
Yes. \OK.
Sure.\Of course.
Sum up
情態動詞can\could
情態動詞can
表示能力，意為“能，會”Can you swim？你會游泳嗎？
can是情態動詞，沒有人稱和數的變化，但有時態的變化，它的過去式為could，其后可直接接動詞原形
注意事項
-情態動詞could作為can的過去式時，表示過去的能力和可能性，其否定形式為could not，可縮寫為couldn’t
含義
用法
對提出請求或征詢許可的句型做否定回答時，通常以sorry或I’m sorry開頭
表示許可，意為“可以”，相當于may(比may更口語化，may較正式)。Can you help me？你能幫我嗎？
情態動詞could可用于禮貌地提出要求或征詢許可，此時并非can的過去肯定回答：Of course./Certainly./OK./Sure./No problem.等
否定回答：Sorry./Certainly not./I’m afraid I can’t./No, you can’t等.+說明理由式
用于提出邀請。對其作肯定回答通常用“Sure./Of course./Certainly./Yes，I'd love (like) to.”等，作否定回答通常用“Sorry/No，I can't.”等。
情態動詞could
Grammar
1.can是情態動詞，沒有人稱和數的變化，但有時態的變化，它的過去式為could，其后可直接接動詞原形，其用法如下：
情態動詞can的用法
1)表示能力，意為“能，會”。Can you answer the question？你能回答這個問題嗎？
(2)表示許可，意為“可以”，相當于may(比may更口語化，may較正式)。此外，could也可以表示許可，語氣更加委婉。Could you help me find it？你能幫我找到它嗎？
(3)用于提出邀請。對其作肯定回答通常用“Sure./Of course./Certainly./Yes，I'd love (like) to.”等，作否定回答通常用“Sorry/No，I can't.”等。
—Can he come to my party？他能來參加我的宴會嗎？
—Yes.He'd love to.是的。他很樂意。
can句式變化
can句式變化
(1)在變否定句時，直接在后面加上“not”，寫作can't或cannot。如：
I can speak French.我會講法語。 →I can't speak French.我不會講法語。
(2)在變一般疑問句時，can直接移到主語前(原主語的首字母改成小寫，第一人稱應變為第二人稱)即可。如：
I can play the piano.我會彈鋼琴。 →Can you play the piano？你會彈鋼琴嗎？
其肯定回答可用yes，OK或of course等；否定回答可用no或sorry等。如：
—Can you look after my books，please？你能照看一下我的書嗎？
—OK.可以。
情態動詞could的用法
情態動詞could作為can的過去式時，表示過去的能力和可能性，其否定形式為could not，可縮寫為couldn’t,其用法如下：
（1）情態動詞could可用于禮貌地提出要求,此時并非can的過去式
Could you please take the dog for a walk
請你去遛遛狗好嗎？
（2） could可用于征詢許可，此時并非can的過去式
Could I go out for dinner with my friends
我能和朋友一起出去吃（晚）飯嗎？
3.注意事項
1.對提出請求或征詢許可的句型做否定回答時，通常以sorry或I’m sorry開頭。
Eg.—Could you help me with my English now 你現在能幫我學英語嗎？
—I’m sorry, but I have a football match ten minutes later. 抱歉，我十分鐘后要參加一場足球賽。
2.如果問句中使用could，回答時要用can或can’t，不能用could或couldn’t。
Eg.—Could I use your bike 我能用一下你的自行車嗎？
—Sure, you can. 當然可以。
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, 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
D
B
A
Ask and answer in pairs
A： Mr. Lake, could I go to the toilet
B: Of course you can.
A：Could I use your computer
B: Yes, if you are careful with it.
A：Can I stay out until eleven
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：Could you give me a ride to town now
B: I can’t. I have to do some work now.
until（后接時間點或從句） 直到……為止
作介詞；表示“直到……為止”，后接時間點作連詞
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.
2. You were sick at home yesterday. Your friend went to an English 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.
“death”是名詞，意為“死亡”。His death made us very sad.
“die”是動詞，意為“死；去世”，強調動作。
My pet dog died last week.（我的寵物狗上周死了。）
A: Can/ Could I use your phone
B: Sure./ Of course
1. You’re at your friend’s home. You want to call your parents, but your phone is dead.
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.
2. You were sick at home yesterday. Your friend went to an English 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.
A: Could you please lend your English notes to me
B: Sorry , I have to …
C:Sure./ Of course
1.You were sick at home yesterday. Your friend went to an English classand took notes. You want to know more about the class.
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.
2. You were sick at home yesterday. Your friend went to an English 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.
hold為動詞，
①表示“拿著；握住” Hold the book in your left hand.（用你的左手拿著這本書。）
②意為“舉辦；舉行” We will hold a sports meeting next week.（我們下周將舉辦一場運動會。）
③表示“容納；包含” This box can hold many things.（這個盒子能容納很多東西。）
【常見搭配】hold on（等一下；堅持）；hold up（舉起；阻擋）。
A: Could you please help me open the door
B: Sure./ Of course
2. You are holding a large box. It is difficult to open the door. Your neighbour comes.
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.
2. You were sick at home yesterday. Your friend went to an English 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.
①ask表示“詢問；打聽”可接雙賓語，即“ask sb. sth.”結構，問某人某東西。
②ask意為“請求；要求”,用于“ask sb. to do sth.”結構，意為“要求某人做某事”,其否定形式是ask sb not to do sth（要求某人不要做某事）。“ask for”表示“請求；要求得到”。
③ask表示“邀請”
They asked us to their party.（他們邀請我們參加他們的聚會。）
A: Could you please help me bring gloves and rubbish bags
B: Sure./ Of course
4. You and your classmates want to help clean up the community. Ask your classmate to bring gloves and rubbish bags.
一、單項選擇
1. ________ you please help me make a flyer for World Wildlife Day
A．Could B．Should C．Must D．Need
2.Your little brother ______ play Chinese chess very well now.
—Yes, but he ______ do it last year.
A．can; could B．could; couldn’t C．can; couldn’t
3.—Could I go out with my friends tonight
—Sure, you ________. But you must come back by 10.
A．might B．could C．can
4.My little sister _______ walk when she was one year old.
A. can B. could C. will D. shall
Exercise
Thank you

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