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什么情况下用现在完成
现在分词表示动作正在发生,正在进行中,用于进行时态;也可以修饰名词,表示名词现在的特征
如:The bird is flying.那只小鸟正在飞翔(现在进行时)
We were having an English class at 8:30 yesterday.(过去进行时)
There is a flying bird in the sky.天空中有一只飞翔的小鸟.
过去分词表示动作已经完成,用于完成时态,也可以修饰名词;
如:I have finished my homework.我已经完成了作业.(现在完成时)
I have finished my homework before I went home.昨天我在回家之前就完成了作业(过去 完成时)
This is a broken glass.这是一个打破了的玻璃杯.
英语在什么情况下用现在分词
表示主动状态用现在分词,被动状态用过去分词。
I am doing my homework.
My homework has been finished by me.
2.现在分词是令人...,过去分词表示人感到...
比如,interested/interesting, satisfied/satisfying等
现在分词在什么时候用
现在分词在现在进行时的时候用。
作用:现在分词(present participle)(又称-ing形式,现在进行时),是分词的一种,分词又分为现在分词和过去分词,它们都是非限定动词。
怎么用:现在分词在句子里面不能单独充当谓语,但能充当其它的一些成分(定语,表语,补语,状语),并且它们具有动词的性质。
否定结构
现在分词的否定式由“not+现在分词”构成。如:
Not knowing where to go, she went to the police for help.
她不知道该往哪儿走,就去请警察帮助。(现在分词一般式的否定结构)。
Not seeing John, I asked where he was.
我看不见约翰,于是问他在何处。(现在分词一般式的否定结构)。
什么时候用现在分词什么时候用过去分词做定语
什么时候用现在分词什么时候用过去分词?现在分词和过去分词主要差别在于:现在分词表示"主动和进行",过去分词表示"被动和完成"(不及物动词的过去分词不表示被动,只表示完成).分词可以有自己的状语、宾语或逻辑主语等.
1、 分词作状语分词在句子中作状语,可以表示时间、条件、原因、结果、让步、伴随等.
分词在句子中作状语,使用何种分词,要取决于分词与句子主语的关系:主谓关系用现在分词,动宾或被动关系用过去分词.
(1)现在分词The students went out of the classroom, laughing and talking.
(2)过去分词Accompanied by his friend, he went to the railway station. Given better attention, the plants could grow better.
2、"while ( when, once, until, if , though等连词)+分词"结构现在分词或过去分词作状语时,有时可以在分词前加while,when, once, although, until, if等连词.
When leaving the airport, she waved again and again to us. While waiting for the train, I had a long talk with my sister about her work……
Once recovered, he threw himself into his work and made every effort to do it well.
Although working very hard, he failed to pass the final exam. If translated word by word, the passage will be difficult to understand.
3、分词作定语分词作定语时,单个的分词通常放在被修饰的名词之前,分词短语一般置于所修饰的中心词后面.现在分词修饰的是发出该动作的名词(即与名词有主谓关系),过去分词修饰承受该动作的名词(即与名词是动宾关系).
We will go on with our experiment as soon as we get the added fund.
This is really an exhausting day to all of us!
We can see the part of the moon lighted by sunlight.
After a night spent in excitement and sleeplessness, I forced myself to take a long walk along the beach the next day.
More and more developing countries established strategic partnership with developed countries
4、分词作宾语补足语现在分词在see, watch, hear, observe, notice, feel, find, glimpse, glance等感官动词和look at, listen to等短语动词以及have, keep, get, catch, leave, set, start, send等使役动词后面与名词或代词构成复合宾语,作宾语补语的成分.
5、分词作表语分词作表语通常看作形容词来用.现在分词表示主语的性质,而且主语多为物;过去分词表示主语的感受或状态,主语多为人.
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