译林版英语6A Unit4 Then and now知识点梳理(3)
3. Now, he/she…
三、语法知识点
1、(1)could引导的一般过去时的否定句,在could之后加not:
could not=couldn’t
Six years ago, I could write.(否定句)
Six years ago, I couldn’t write.
(2)could引导的一般过去时的一般问句,将could调至句首:
Mike could read and draw.(一般问句)
Could Mike read or draw?
(3)could引导的特殊问句:特殊疑问句+could引导的一般问句:
They could ride a bike. (对画线部分提问)
Could they ride a bike (用do what替换) ?
What could they do ?
2、不规则动词有:(Unit4)
Unit4 写 write |
wrote |
阅读 read |
read |
制造 make |
made |
买 buy |
bought |
规则动词有:
Unit4 听 listen |
listened |
发明 invent |
invented |
使用 use |
used |
3、介词的用法:
in the office at home,
listen to the radio read newspapers for news