小学现在进行时课件-PPT(精).ppt

The present continuous tense
现在进行时
基本用法
概念:表示现在正在进行的动作和发生的事
现在进行时的标志性词语有now, look, at the
moment, listen等
现在进行时的基本构成:
主语+be动词+现在分词
Eg: They are drawing pictures.
现在进行时
现在分词的构成规则:
-ing,如:read-reading
,去e加-ing,如:write-writing
,末尾只有一个辅音字母,应先双写这一字母,再加-ing。
Eg:swim-swimming run-running
cut-cutting shop-shopping sit-sitting
特殊变化:lie-lying平躺,die-dying死亡
常用的现在分词
一般在动词原型后+ing
go
ask
talk
going
asking
talking
以不发音的e结尾的,去e,+ing
write
take
live
writing
taking
living
重读闭音节以一个辅音字母结尾的,双写这一字母+ing
get
run
swim
put
shop
geting
running
swimming
putting
shopping
现在进行时的句式:
—主语+be+doing
Eg: I am doing my homework.
—主语+be+not+doing
Eg: I am not doing my homework.
—be提到句首(注意人称变化)
Eg: Are you doing your homework?
现在进行时
What is he doing?
He is writing.
What is she doing?
She is reading.
现在进行时
What are you doing?
I am running.
现在进行时
What is he doing?
He is puter.
现在进行时
What is he doing?
He is playing basketball.
现在进行时
What is she doing?
She is drinking.