Unit 13We’re trying to save the earth!

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第一课时 Section A （1a—2d）

Ⅰ. 根据首字母及句意补全单词。

1.You mustn’t throw p bags away after you use them.

2.Students from the middle school used 300 trees to build a w house.

3.Answers can be found at the b of Page 8.

4.The girl was afraid to speak in public because she thought she was u .

5.We should keep our classroom clean， so don’t l everywhere.

Ⅱ. 根据汉语意思完成译句。（剩余15213字）