现在进行时句式变化
知识点
一：句型结构：主语+be 动词(am/is/are) +动词现在分词+其他... 句式变化举例：
肯定句：I am working now.
一般疑问句： Are you working now？ 肯定回答： Yes，I am. 否定回答 ：No，I am not. 否定句： I am not working now. 肯定句：She is playing the piano. 一般疑问句：Is she playing the piano？ 肯定回答： Yes，she is. 否定回答 ：No，she isn’t.
否定句： She is not playing the piano. 肯定句：They are making cards. 一般疑问句：Are they making cards？ 肯定回答： Yes，they are. 否定回答 ：No，they aren’t. 否定句： They are not making cards. 总结：现在进行时句型变化
肯定句变否定句：找到be 动词，be 后加not 肯定句变一般疑问句：
be 提前，需大写，I/We 变you 要留意，结尾句号变问号。
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综合练习
一、写出下例动词的现在分词形式
use draw get know
move ring keep lie
skate carry close begin 二、请用 be 动词的否定形式填空（缩写形式）
1） Mike 2） We climbing the hill.
having an English lesson now. closing the window. reading the text now. 3）He 4）The students 5）I
studying English.
三、按照要求改写句子
1) The boy is waiting for his mother.
一般疑问句：
肯定回答：
否定回答 ：
否定句：
2） I’m playing the violin.
一般疑问句：
2
肯定回答：
否定回答 ：
否定句：
3） They are doing their homework now.
一般疑问句：
肯定回答：
否定回答 ：
否定句：
四、口语作业，读问题，根据图片回答问题（录视频）
Is she listening to music?
Are they riding bikes? What are they doing？
What are you doing
Is Amy watching TV? What is she doing？
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