译林版九年级下册英语Unit 2 Period 5同步练习答案

1自主预习第一题答案

1	2	3	4	5
d	e	a	b	c

2自主预习第二题答案

1、discovery

2、unknown 

3、widely

4、scientist 

5、laboratory

3随堂反馈第一题答案

1	2	3	4	5
B	B	A	C	B

4随堂反馈第二题答案

1	2	3	4	5
A	A	B	B	C

5课后巩固第一题答案

1、cut short

2、widely covered

3、For some unknown reasons

4、It is very slow for her to make shoes by hand. 

5、It was clever of him to find his way here.

6课后巩固第二题答案

1	2	3	4	5
D	D	C	C	C
6	7	8	9	10
A	A	D	D	A
11	12	13	14	15
A	C	A	B	A
16	17	18	19	20
A	C	A	B	D