人教版九年级下册英语Unit 13 Section B长江作业本答案

1Unit 13 Section B第二题答案

Ⅰ、

1、upside fown   

2、put to good use

3、throw away   

4、bring back

5、pull down 

6、set up

7、be made of/from

8、build out of

9、be good at   

10、the importance of environmental protection

Ⅱ、

11	12	13	14	15
C	D	E	A	F

Ⅲ、

16、The desk is made of wood and metal.

17、When the teacher came into the classroom，the students stopped talking.

18、It's important to save endangered animals.

19、t's a most beautiful city.

20、The money will be put to good use to help disabled people.

2Unit 13 Section B第三题答案

Ⅰ、

1、environmental problem

2、take public transportation

3、worse an  worse

4、noise pollution

5、cause problems

Ⅱ、

6	7	8	9	10
B	A	A	A	A

Ⅲ、

11、take care of；care for/about

12、to turn off the lights

13、To recycle books and paper

14、turn off the shower

15、is not as clean as；used to be