小学英语一般现在进行时讲解及练习题(基础版)
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现在进行时
一、概念
现在进行时表示说话时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.
结构:助动词be ( am / is / are ) +现在分词.
二、现在分词的构成:
1. 大多数动词后可在动词后直接加-ing.
Eg: carry-carrying,catch-catching,drink-drinking, enjoy-enjoying hurry-hurrying ,do-doing , read-reading , think-thinking
2. 如果动词以-e 结尾,则去掉-e,再加-ing,
如come-coming , have-having , make-making,ride-riding,write-writing,take-taking,use-using.
3. 如果动词只有一个元音字母,而其后跟有一个辅音字母时,将此辅音字母双写,再加-ing
如:hit-hitting,let-letting, put-putting,run-running,sit-sitting .
三、句型结构:
1. 现在进行时的肯定形式、否定形式、疑问形式及其回答,所有变化都体现在助动词be ( is / am / are )
上.1)现在进行时的肯定形式:主语+be(am/ is/are)+doing+其他成分
I am singing . They are writing .
2)现在进行时的否定形式:主语+be(am/ is/are)+not +doing+其他成分
I am not singing . They aren ’t writing .
3)一般疑问句及回答:be(am/ is/are)+ 主语+doing+其他成分
Am I singing ? Yes ,you are . / No ,you aren ’t .
Are they writing ? Yes ,they are . / No ,they aren ’t .
4)特殊疑问句及回答: 特殊疑问词+be(am/ is/are)+主语+doing+其他成分
What are you doing ? We are playing 要(
求就提问内容具体回答).
2. 缩写形式如下:
I am---I ’m You a-r-e-You’re He is---H e’s She-i-s- She’s
It is--- It ’s We a--r-e We’re They are---They’re
3. 说明: 不是所有动词都能用现在进行时态的,如:
see、like 、want、know 等动词往往都不用进行时态.
四.用法:
1.表示现在( 指说话人说话时) 正在发生的事情.往往与now,at the moment,just 等副词连用,以示强调.
We are waiting for you. What are you doing? Some one
2.正在进行着的动作可视为未完成的动作:
He’s talking to his friends in the classroom.
可用still 一词强调动作的持续性
He’s still talking to his friends in the classroom.
knockin’g s at the door.
3. 表示长期的或重复性的动作,说话时动作未必正在进
行.Mr. Black is writing another article.
Don’t take that book away. Your father ’s using it.
She is learning piano under Mr. Black.
4. 现在进行时可用来表示不会长期发生的动作或情况,或被认为在短期内正在进行的动作或存在的情况:
What’s your brother doing these days? He ’s studying English at Oxford University.
随堂练习:
一、写出下列动词的现在分词形式:
look take let
do
make
put
study
come
swim
play
have
hit
read
use
run
按要求完成句子:
I (fly) a kite now.
He (read) a book now.
Look, she (swim).
Listen, the girls (sing)a song.
What are they doing? They (make)a kite. Some birds (fly)in the sky.
My friend (listen) music now.
二、按要求写句子:
1. The boy is playing basketball.
否定句:
一般疑问句:
肯定回答:
否定回答:
2. They are singing in the classroom. 否定句:
一般疑问句:
肯定回答:
否定回答:
3.Mike is reading a book.
否定句:
一般疑问句:
肯定回答:
否定回答:
4.They are playing games.
否定句:
一般疑问句:
肯定回答:
否定回答:
5.Lucy and Lily are watching TV.
否定句:
一般疑问句:
肯定回答:
否定回答:
6.仿照例句造句:
Model: read a book
--What are you doing?
--I'm reading a book.
1).watch TV
2).clean the blackboard