人教版九年级下册英语Unit 1第2课时Section A 3a~4c课时作业本详细解答过程和答案

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Section A 3a~4c第1题详细解答过程和答案
1、 secret
2、grammar
3、Physics
4、discovered
5、repeat
Section A 3a~4c第2题详细解答过程和答案
1、 expression  
2、 anything  
3、 repeatlng
4、speaking
5、Have；asked
Section A 3a~4c第3题详细解答过程和答案

1	2	3	4
C	C	D	C
5	6	7	8
C	B	B	A

Section A 3a~4c第4题详细解答过程和答案
1、 so；that;afraid to  
2、 the secret to language larning  
3、 by watching； body language； the expressions
4、 by taking notes
5、 fell in love with
Section A 3a~4c第5题详细解答过程和答案
1、I live at school  
2、It's very lnterestmg.／Very interesting.  
3、I usually read books／draw pictures／play basketball／…  
4、After school／After supper.
5、Very well（详细解答过程和答案不唯一）
Section A 3a~4c第6题详细解答过程和答案
1、He thinks it's not a bad thing.
2、Because theirages,jobs,education levels…are different.  
3、Two.
4、They do it when they communicate with others of their own age.  
5、The one that doesn't change over time.