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现在进行时提纲

发布时间:2014-05-26 14:56:07  

小学现在进行时

一、现在进行时的构成:

由"be动词+ v-ing"构成。(V-ing表示在动词后面加上ing) 现在进行时常用以下几种情况:

1. 当句子中有now时,常表示动作正在进行,这时要用现在进行时。 如:They are playing basketball now.现在他们正在打篮球。

2. 以look, listen开头的句子,提示我们动作正在进行,这时要用现在进行时。如: Listen!She is singing an English song.听,她正在唱英语歌。

二. 动词的ing形式的变化

1)一般情况在动词原形后直接加 -ing

go---going , stand---standing , cook---cooking, do---doing

2)以e 结尾的动词,要去掉 e + ing.

take---taking, make---making, have---having

3) 重读闭音节动词,要双写最后一个字母, 再加ing(所谓“重读闭音节”:从动词的末尾开始寻找,如果倒数第二个字母是元音字母, 并且元音字母两边的字母没有组合音,没有变音,都独自发音,这样的动词都必须,双写后,再加上ing

get- getting , put---putting, run—running, begin---beginning swim---swimming

e.g eat---eating 这个动词有ea组合音,所以不能双写

study---studying 这个动词倒数第二个字母不是元音字母,不能双写

4) 以 -ie 结尾的动词,把 ie 变成 y ,再加 ing.

die--dying , lie—lying, tie---tying

二、现在进行时的变化

肯定句式:主语 + be( am, is, are)+ V-ing +其它.

e.g I am doing my homework.

He is washing his clothes.

You are flying a kite.

否定句式:主语 + be(am, is, are) +not + V-ing +其它. e.g I am not doing my homework.

He is not washing his clothes.

You are not flying a kite.

一般疑问句:Be(am, is, are) + 主语 + V-ing +其它?

e.g Are you doing your homework? Yes, I am/ no, I am not. Is he washing his clothes? Yes, he is./no, he is not. Am I flying a kite? Yes, I am /no, I am not.

特殊疑问句:疑问词+ be(am, is, are)+ 主语 + V-ing +其它? e.g What are you doing in the house?

Where is he going?

When is she doing her homework?

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