人教版九年级下册英语Unit 13 Section A（1a-2d）课时练答案

1课前自主预习第Ⅰ题答案

1． plastic  

2．bin  

3．fisherman  

4．litter

2课前自主预习第Ⅱ题答案

1． throwing litter into  

2．used to be

3． should play a part in  

4．has become really polluted

5．ideas for solving

3课堂合作探究要点突破答案

1．[对点训练]  ①C       ②B

2．[对点训练]  ①make a difference      ②make a big difference

4课堂合作探究达标检测第Ⅰ题答案

1． fishermen   

2． litter   

3． advantages   

4． wooden    

5． difference

5课堂合作探究达标检测第Ⅱ题答案

1	2	3	4	5
C	A	D	C	A

6课堂合作探究达标检测第Ⅲ题答案

1． instead of   

2． the bottom of    

3． clean up    

4． be full of     

5． throw; into

7课后巩固提升第Ⅰ题答案

1． worried  

2． pollution  

3． learning  

4． takeaways 

5． ugly