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
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
12345CADCA
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
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