人教版九年级下册英语Unit 13 Section A（1a-2d）课时练详细解答过程和答案

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课前自主预习第Ⅰ题详细解答过程和答案
1． plastic
2．bin
3．fisherman
4．litter
课前自主预习第Ⅱ题详细解答过程和答案
1． throwing litter into
2．used to be
3． should play a part in
4．has become really polluted
5．ideas for solving
课堂合作探究要点突破详细解答过程和答案
1．[对点训练] ①C    ②B
2．[对点训练] ①make a difference   ②make a big difference
课堂合作探究达标检测第Ⅰ题详细解答过程和答案
1． fishermen
2． litter
3． advantages
4． wooden  
5． difference
课堂合作探究达标检测第Ⅱ题详细解答过程和答案

1	2	3	4	5
C	A	D	C	A

课堂合作探究达标检测第Ⅲ题详细解答过程和答案
1． instead of
2． the bottom of  
3． clean up  
4． be full of  
5． throw; into
课后巩固提升第Ⅰ题详细解答过程和答案
1． worried
2． pollution
3． learning
4． takeaways
5． ugly