课件18张PPT。Unit 5 Family Activities
Lesson 3
现在进行时现在进行时一、现在进行时的主要用法
二、现在进行时的标志
三、现在分词的构成
四、现在进行时的特殊疑问句的变法 现在进行时的主要用法1、表示“此刻”正在进行的动作
例:She is sitting under the tree.
2、表示“现阶段”正在进行的动作
例:The writer is writing a new book these days.
总结:现在进行时的结构为
主语+be动词(am/is/are)+现在分词+…3、用“现在进行时”表示将来
例:I am coming.
We are leaving tomorrow.
总结:表示“来来去去”的词,如:come go leave start move arrive fly stay等,用这些词的现在进行时表示将来的动作。4、某些介词短语用于“主系表”结构中表示动作正在进行。
例:They are at table.
=They are eating lunch now.
My mother is at work now.
=My mother is working now.5、我们知道,“always”是一般现在时的标志词。但是,在某种情况下,它也可以用于现在进行时。当它用于现在进行时的时候,表示一种“感彩”,译为“总是”。
He is always telling lies .(他总是撒谎)
She is always helping others.6、某些特殊动词,不能用现在进行时。
(1)have当“有”讲时,不能用现在进行时
I have two books now.
(2)”belong to”(属于),没有现在进行时
The two apples belong to me now.
(3)表示”心理活动”的词,不用现在进行时
I want a dog now.
可以看出,以上例子中含有现在进行时的标志词now,但不能用现在进行时。 现在进行时的标志1、表示现在的时间:
(now at the moment)
例:I am cleaning the classroom now.
2、表示现阶段的时间:
( these days at present)
例:What are you doing these days?
3、有些“祈使句”可提醒是现在进行时。
Be quite! The baby is sleeping.
Hurry up! The bus is coming.
4、句子中有“look”、”listen”时,用现在
进行时。现在分词的构成1、直接+ing
doing going standing
walking playing emptying 2、去掉末尾不发音的“e”+ing
coming riding phoning
writing arriving shaving
driving making3、双写末尾字母+ing
putting letting beginning
running preferring shutting
digging swimming sitting
getting shopping 4、以”ie”结尾,变“ie”为y+ing
tie –tying
lie –lying
die –dying The girls are playing games in the playground.
对主语提问:
Who is playing games in the playground.
对谓宾提问:
What are the girls doing in the playground?
对宾语提问:
What are the girls playing in the playground?
对地点提问:
Where are the girls playing games ?Thank you!