人教版七年级下册英语Unit 3 Section B（2a-Self Check）课时练答案

1课前自主预习第Ⅰ题答案

1．It's easy to clean 

2．between； and 

3．eleven-year-old/11-year-old； crosses  

4．come true

2课前自主预习第Ⅱ题答案

1． or  

2．For  

3．difficult 

4．river  

5．cross

3课堂合作探究要点突破答案

1．[探究总结] （1）复数；不可数    

[对点训练]  

①D  

②Many of 

2．[对点训练] C 

3．[对点训练] between; and 

4．[对点训练] 

①afraid of 

②afraid that 

③B 

5．[对点训练] 

①is like 

②playing/to play

6．[对点训练]  leave; for

4课堂合作探究写作指导答案

One possible version：    

There are three people in my family． My father is a worker． It is 20 kilometers from our home to his office． It takes him  15 minutes to drive to his office My mother is a teacher She often takes the bus to work．It's 10 kilometers from our home to her school． It takes her 15 minutes． My school is near our home．It's only 1．5 kilometers． It's 20 minutes' walk．

5课堂合作探究达标检测第Ⅰ题答案

1． bridges   

2． villagers   

3． lives   

4． to Write   

5． to see