文档介绍：Definition(定义）
We use the present continuous
tense to show that something is happening now.
我们使用现在进行时谈论现在正在
发生的事情.
He
play
football .
is
ing
She
read
a book.
is
ing
What is he doing ?
What is she doing ?
They are watching TV.
What are they doing ?
Look！The twins are thinking.
What are they doing ?
Structure
观察以下三个句子，猜猜现在进行时的结构：
I am having an English class.
Lucy is reading a book.
They are watching TV.
positive(肯定句）：
主语+be(is am are) + doing+其他
如： I am reading a book.
我正在看书。
He/She/It is eating.
I am eating.
You/We/They are eating.
Negative（否定句）：主语+be(is am are) + not + doing
如：I am 。
I am not 。
He/She/It is (not) eating.
I am (not) eating.
You/We/They are (not) eating.
:问句,直接把be提前,
Be（is am are）+主语+doing +其他？
肯定回答:Yes,主语 +be （is am are）
否定回答: No,主语+be（is am are）+not
-----Are you drawing ?
-----Yes,I am./No, I’m not.
-----Is she singing？
-----Yes，she is./No, she isn’t.
-----Are they running?
-----Yes,they are./No, they aren’t.
特殊疑问句：特殊疑问词+be （is am are）+主语+doing
例如：What are you doing ？
I am writing .
What is he/she/it doing？
He /She/It is writing.
What are they doing？
They are writing.
When we saw the following words, we should use present continuous tense
时间状语
at present 目前；现在
at the moment 此刻，现在
right now 此刻，现在；立刻，马上
now 现在
Look ! 看 Listen ! 听