广州较好的暑假小学培训班恒高一对一英语基础知识总结
现在进行时

　　1．现在进行时表示现在正在进行或发生的动作，也可表示当前一段时间内的活动或现阶段正在进行的动作。（句中一般含有now, look, listen.）

　　2．现在进行时的肯定句基本结构为be+动词ing.

　　如：Tom is reading books in his study .

　　3．现在进行时的否定句在be后加not。

　　如：Tom is reading books in his study .

　　Tom is not reading books in his study .

　　4．现在进行时的一般疑问句把be动词调到句首。

　　如：Tom is reading books in his study .

　　Is Tom reading books in his study ？

　　5．现在进行时的特殊疑问的基本结构为：疑问词+一般疑问句

　　（注意：当划线部分包含谓语动词时，用疑问词代替划线部分放到句首，原划线处应加上doing）

　　如：Tom is reading books in his study .

　　Tom is reading books in his study .

　　Is Tom reading books in his study

　　Is Tom reading books in his study

　　What is Tom doing in his study

　　Where is Tom reading books

　　动词加ing的变化规则

　　1．一般情况下，直接加ing，如：cookcooking

　　2．以不发音的e结尾，去e加ing，如：makemaking, tastetasting

　　3．如果末尾是辅音字母加一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：runrunning, stopstopping