连词if .whether.它们起连接作用.在从句中不作句子成分.作“是否 解.在口语中多用if. eg. Tom don’t know if/whether his grandpa liked the present. He asked me whether or not I was coming. 一般情况下.if 和whether可以互换.但以下3种情况只能用whether: ①在不定式前:Whether to go there or not hasn’t been decided. ②在介词前:It depends on whether it is going to rain. ③与or not连用:They are talking about whether to go there or not. 查看更多

 

题目列表(包括答案和解析)

—What shall we do now?

—_______it’s raining hard, let’s stay at home.

A. So      B. Since      C. Though     D. If

查看答案和解析>>

  

For children  

Museum: Children’s Museum, Sundays,   89 North Street  , 67641235  

Story time: Children’s Library,   106 Green Street  , Wednesdays during 9:30 a.m.-----5:00p.m., 66599624  

Sports: Soccer Club, Tuesday and Thursday,   16 Yangtze Road  , 96725643  

Basketball Club, Wednesdays and Fridays, 79071632  

Cinema: New movies for children, on weekends,  99 Brick Road  , 69001354  

   

Useful Phone numbers  

Fast Food Restaurant: 66387901  

Hospital: 68787451  

  Visitor   Information   Center  : 800-120-9847  

Taxi: 79210583  

Visitor Hotel Information:800-739-7302  

1.Where is the Children’s Museum?  

A. 106 Green Street   B.   16 Yangtze Road     C.   89 North Street    

2. It’s Wednesday, you can go to             .  

A. play basketball   B. play soccer    C. see a movie  

3. If children want to order fast food, they should call          .  

A. 66387901   B. 79210583    C. 68787451  

4.If you dial 79210583, you can             .  

A. do some shopping  B. have a good story time  C. call a taxi  

5. There is no information about             in the two notices.  

A. looking for a hotel   B. doing eye exercises    C. seeing a doctor 

 

查看答案和解析>>

—Mum, can we go to the art museum tomorrow?

—Sure. But first we should find out ________.

A. what can we do          B. where we can go

C. how can we go there        D. if it will be open

查看答案和解析>>

I'm waiting for my friend. , I'll go shopping alone.

A. If she comes     B. If she won't come  C. If she doesn't come

查看答案和解析>>

Thomas wants to know ______Nina lives.

  A. where         B. who        C. what     D. if

查看答案和解析>>


同步练习册答案