内容正文:
译林版八年级下册
Unit 4 语法精讲
疑问词+不定式
must与have to
目
录
01.
疑问词+动词不定式
02.
must与have to
03.
随堂练习
04.
课堂小结
疑问词+动词不定式
PART.01
疑问词+动词不定式
“疑问词+动词不定式”作宾语;
疑问代词:what、which、who
疑问副词:when、where、how等
eg:
what to buy 买什么
how to get there 怎么到达那里
when to leave 什么时候离开
......
疑问词+动词不定式
“疑问词+动词不定式”常用于动词之后
eg: advise、forget、tell、ask、know、wonder、decide等
eg:
We haven’t decide where to go for the holiday?
Can you tell me how to deal with it?
I wonder how many books to buy?
疑问词+动词不定式
三个例句有何不同:
①We haven’t decide where to go for the holiday?
动词+疑问词+不定式
②Can you tell me how to deal with it?
动词+宾语+疑问词+不定式
tell、ask、teach等可接双宾语的动词,可用这一结构
eg: I asked her when to start working, but she didn’t answer.
Mr. Wang told us what to say at the meeting.
疑问词+动词不定式
三个例句有何不同:
③I wonder how many books to buy?
动词+疑问词+名词+不定式
which、whose、how many、how much等可接名词的疑问词,可用这一结构
eg: I don’t know which skirt to choose.
Mom has told us how much sugar to add when making a cake.
疑问词+动词不定式
三个例句有何不同:
③I wonder how many books to buy?
动词+疑问词+名词+不定式
which、whose、how many、how much等可接名词的疑问词,可用这一结构
eg: I don’t know which skirt to choose.
Mom has told us how much sugar to add when making a cake.
疑问词+动词不定式
“疑问词+动词不定式”也可用于sure、clear等形容词之后
eg:
I’m not sure when to have a picnic with my family.
I’m still not clear how to work out the math problem.
疑问词+动词不定式
宾语从句简化成疑问词+不定式转化
eg: ①Do you know how we should get to the museum?
Do you know how to get to the museum?
②Nina has decided which dress she will buy for her mun.
Nina has decided which dress to buy for her mum.
must与have to
PART.02
must与have to
情态动词must的用法:
1)表示肯定猜测,意为“一定、肯定”,后接动词原形
This book must be my sister’s. Her English name is on the cover.
否定猜测:can’t“不可能”
may not“不一定、可能不”
eg: ①—Is the man over there your uncle?
—It can’t be him. He has gone to the UK.
“一定不是”
② Jane may not like coffee. She usually drinks juice.
“可能不喜欢”
③ The students had tears