新人教2024版八上英语 Unit 2 Home Sweet Home 单元重点语法复习学案（含答案）

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新人教2024版八上英语Unit 2 Home Sweet Home单元重点语法复习学案
could和can表请求
could和can都情态动词，表示说话人的主观看法或语气。它没有人称和数的变化，也不能单独在句子中做谓语，但它可以与其后的不带to的动词不定式一起构成复合谓语。
1.can 表示能力，常被译成“能，会”。过去式could，表示过去的能力。否定形式couldn't。
Eg:Ican sing Englishsongs.我会唱英语歌曲。
Eg:Icould look after myself whenIwas six.我六岁就能自己照顾自己了
2.表示请求或许可，常被用来请求对方的许可，或表示说话人自己的许可。
Eg:CanIhelp you 我能帮你忙吗
Eg:Can you go to the picnic with us tomorrow 明天你能和我们一起去野餐吗
3.情态动词could构成的问句用于委婉地向对方提出请求或征求对方的许可，语气比can委婉，但不表示过去，答语没有固定形式，符合语境即可。
委婉地请求他人可用“Could you do.. "“Could you please do. ”提问，若同意请求可以说"Certainly./Of course./With pleasure./No problem./Yes./Sure.";若不同意请求可以说“Sorry,l can't.”。
【即学即练】
一、单项选择
1. —Could I go to the shop —Yes, .
A you can B. you could C. you do D. you are
2. —Could you please make your bed — I have too much homework to do.
A. Yes, sure. B. Why not C. Sorry, you can’t. D. Sorry, I can’t.
3. Could you please on the road
A. not to play B. to not play C. play not D. not play
4.He speak three languages when he was ten years old.
A.can B.may C.could D. can't
5.What you do when you were five
A. Do B. were C.can D.could
二、按要求完成句子
1. Could you please answer these questions
.(作肯定回答)
2.Help your parents do chores. (用could 改写句子)
help your parents do chores
3. Could you please do the dishes at this time (改为否定形式)
Could you please the dishes at this time
4.I，bookstore,go，could，to，the( )(连词成句)
？
5. clean, could, please, you, room, the ( )(连词成句)
？
【could和can表请求即学即练参考答案】
一、单项选择
1. —Could I go to the shop —Yes, A .
A you can B. you could C. you do D. you are
2. —Could you please make your bed — D I have too much homework to do.
A. Yes, sure. B. Why not C. Sorry, you can’t. D. Sorry, I can’t.
3. Could you please D on the road
A. not to play B. to not play C. play not D. not play
4.He C speak three languages when he was ten years old.
A.can B.may C.could D. can't
5.What D you do when you were five
A. Do B. were C.can D.could
二、按要求完成句子
1. Could you please answer these questions
No problem/Of course .(作肯定回答)
2.Help your parents do chores. (用could 改写句子)
Could you pease help your parents do chores
3. Could you please do the dishes at this time (改为否定形式)
Could you please not do the dishes at this time
4.I，bookstore,go，could，to，the( )(连词成句)
Could I go to the bookstore ？
5. clean, could, please, you, room, the ( )(连词成句)
Could you please clean the room ？
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