内容正文:
新五年级英语暑假衔接讲义
(PEP版 三年级起点)
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第6讲 情态动词can
适用年级:新五年级(四升五)
教材版本:PEP版(三年级起点)
内容说明:情态动词can表示能力、许可的用法及各种句式变化
一、can表示能力('能、会')
I can swim. She can dance.
can没有人称和数的变化(He can... NOT He cans...)
can后面跟动词原形
二、句式表
句式
结构
例句
肯定句
主语 + can + 动词原形
I can swim.
She can dance.
否定句
主语 + can't + 动词原形
I can't swim.
She can't sing.
一般疑问句
Can + 主语 + 动词原形?
Can you swim?
Can she dance?
三、can的其他用法
请求许可:Can I go to the bathroom?
请求帮助:Can you help me?
典型例题
1. 用 can 或 can't 填空:
(1)Birds ______ fly.
(2)Fish ______ fly.
(3)I ______ speak English.
(4)She ______ swim. She is afraid of water.
(5)______ you play the piano?
【解析】
(1). can。鸟会飞,表示能力。
(2). can't。鱼不会飞,否定。
(3). can。我会说英语。
(4). can't。她怕水,所以不会游泳。
(5). Can。疑问句Can提前。
2. 句型转换:
(1)I can cook.(改为否定句)
(2)He can play football.(改为一般疑问句并作肯定回答)
(3)Birds can fly.(改为一般疑问句)
【解析】
(1). I can't cook. 否定句在can后加not。
(2). Can he play football? Yes, he can. 疑问句Can提前。
(3). Can birds fly? 疑问句Can提前。
3. 选择填空:
( )(1)She ______ speak Chinese.
A. can B. cans C. can to
( )(2)______ you help me?
A. Can B. Are C. Do
【解析】
(1). A。can没有人称变化。 (2). A。Can you help me? 请求帮助用Can。
基础练习
1. 选 can 或 can't 填空:
(1)A bird ______ fly. But a rabbit ______ fly.
(2)I ______ play basketball. I like it.
(3)She is 2 years old. She ______ read.
【参考答案】
(1). can, can't
(2). can
(3). can't
2. 用所给词完成句子:
(1)I ______(swim)very well.
(2)She ______(dance)beautifully.
(3)They ______(speak)English.
【参考答案】
(1). can swim
(2). can dance
(3). can speak
3. 根据实际情况回答:
(1)Can you swim?
(2)Can your mother cook?
(3)Can you play the piano?
【参考答案】
(1). Yes, I can. / No, I can't.(根据实际情况)
(2). Yes, she can. / No, she can't.(根据实际情况)
(3). Yes, I can. / No, I can't.(根据实际情况)
提高练习
1. 改错:
(1)He cans play football. ______
(2)She can to swim. ______
(3)I not can play the piano. ______
【参考答案】
(1). cans改为can。can没有人称变化。
(2). 去掉to。can后跟动词原形。
(3). not can改为can't。否定用can't。
2. 连词成句:
(1)can, I, help, you?
(2)can't, he, play, football
(3)what, do, you, can?
【参考答案】
(1). Can I help you?
(2). He can't play football.
(3). What can you do?
3. 阅读判断,正确的写'T',错误的写'F':
Hello, I'm Tom. I'm 10. I can swim and play basketball. But I can't play football. My sister Lily can dance and sing. She can play the piano too. My father can cook very well.
( )(1)Tom can swim.
( )(2)Tom can play football.
( )(3)Lily can dance and sing.
( )(4)Lily can play the piano.
( )(5)Tom's father can cook.
【参考答案】
(1). T
(2). F
(3). T
(4). T
(5). T
口诀(记忆方法)
情态动词can,能力许可它来管;
不管人称怎么变,can后面动原站。
肯定can在主语后,否定can后加not;
疑问can到句前去,回答还用can来答。
重点回顾
✓ can表示能力,没有人称变化,后面跟动词原形
✓ 否定句:can't = cannot
✓ 一般疑问句:Can + 主语 + 动原?
✓ 肯定回答:Yes, 主语 + can. 否定回答:No, 主语 + can't.
参考答案
一、典型例题
1(1). can
1(2). can't
1(3). can
1(4). can't
1(5). Can
2(1). I can't cook.
2(2). Can he play football? Yes, he can.
2(3). Can birds fly?
3(1). A
3(2). A
二、基础练习
1(1). can, can't
1(2). can
1(3). can't
2(1). can swim
2(2). can dance
2(3). can speak
3(1). Yes, I can. / No, I can't.
3(2). Yes, she can. / No, she can't.
3(3). Yes, I can. / No, I can't.
三、提高练习
1(1). cans → can
1(2). 去掉to
1(3). not can → can't
2(1). Can I help you?
2(2). He can't play football.
2(3). What can you do?
3(1). T
3(2). F
3(3). T
3(4). T
3(5). T
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