Which is right?Why?How many fish have____so far?a.died b.been dead

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Whichisright?Why?Howmanyfishhave____sofar?a.diedb.beendeadWhichisright?Why?Howmanyfishhave____sofar?

Which is right?Why?How many fish have____so far?a.died b.been dead
Which is right?Why?
How many fish have____so far?
a.died b.been dead

Which is right?Why?How many fish have____so far?a.died b.been dead
选b
因为die是终止性动词,不可以和“一段时间”连用
而是be dead表状态的,也就是延续性的,就可以

选择B:been dead
这里涉及到现在完成时间 延续性动词和瞬间性动词知识
请看下面知识点
浅谈终止性动词和延续性动词
延续性动词: live,run,stay,clean,play,hold,watch,teach,read,study,teach,eat,drink,write,dance, sing,smoke
瞬间性动词:
ope...

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选择B:been dead
这里涉及到现在完成时间 延续性动词和瞬间性动词知识
请看下面知识点
浅谈终止性动词和延续性动词
延续性动词: live,run,stay,clean,play,hold,watch,teach,read,study,teach,eat,drink,write,dance, sing,smoke
瞬间性动词:
open,stop,like,love,die,win,close,shot,begin,start enter,finish
1、终止性动词:表示不能延续的动作,即动作发生后立即结束。如:begin,arrive,borrow,buy,break,close,come,fall,dic,finish,go,leave,lend,mary,reach,receive,open,sell,start,stop等。
终止性动词的肯定式是不能持续的,所以不能和表示一段时间的状语连用,而终止性的否定式就可以和表一段时间的状语连用,因为否定本身就是可以延续的。
如:have a cold是持续性动词,表示“状态”,可与表延续性的时间状语连用,不定冠词不能省略。
I′ve had a cold since my arrival(到达 n.).
I didn′t go to school because I had had a bad cold for days.
catch a cold是短暂性动作,表“动态”:它不能和延续性时间状语连用,不定冠词“a”可有可无,catch可用take,get代替。
Put on your coat,or you′ll catch/take/get a cold.
Take care not to get cold.
但是,若cold前有形容词修饰时,则不定冠词不能省。
如:Brown has taken a slight cold.
注意下列句子:
I have caught a cold for over a week.(×)
I have had a cold for over a week.(?)
2、延续性动词:表示可以延续一段时间的动作或状态。如:be,drink,fly,eat,keep,lie,live,rain等。
延续性动词常不能和表示一个短暂具体的时间状语连用;这类动词如用于进行时态,则可以和表示一个短暂具体的时刻连用。
He worked at eight yesterday afternoon.(×)
He was working at eight yesterday afternoon.(?)
3、代替终止性动词的方法
a)用延续性动词代替终止性动词
1、用have代替buy
My brother has had(不能用has bought) this bike for almost four years.
2、用keep或have代替borrow
I have kept(不能用have borrowed) the book for quite a few days.
3、用be替代become
How long has your sister been a teacher?
4、用have a cold代替catch a cold
Tom has had a cold since the day before yesterday.
5、用wear代替put on
b)用“be+形容词”代终止性动词
1、be+married代marry 2、be+ill代fall (get) ill
3、be+dead代die 4、be+asleep代fall (get) asleep
5、be+awake代wake/wake up 6、be+gone代lose,die,sell,leave
7、be+open代open 8、be closed代close/shut
9、be+missing(gone,lost)代lose
c)用“be+副词”代终止性动词
1“be+on”代start,begin
2“be+up”代get up
3“be+back(to)”代return to,come back to,go back to
4“be here (there)”代come(arrive,reach,get) here或go (arrive,reach,get) there等等
d)用“be+介词短语”代终止性动词
1.“be in/at +地点”代替go to /come to
2.用be in the army 代替join the army
3.“be in/at +地点”代替move to

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选B 因为是过去进行时

选择B,因为die不具备延续性。

b 死不能持续,只表示状态,哪有什么东西死了好久没死成的啊,(除了十面埋伏里的盲女)开个玩笑

a 到目前为止有多少鱼死了?

B 完成式