第一题为什么选C,第二题为什么选B不选A,1.The number of people invited___ fifty,but a number of them___ absent for different reasons.A.were;was B.was;wasC.was;were D.were;were2.When and where to build the new factory ____ yet.A.has not d

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第一题为什么选C,第二题为什么选B不选A,1.Thenumberofpeopleinvited___fifty,butanumberofthem___absentfordifferentreasons

第一题为什么选C,第二题为什么选B不选A,1.The number of people invited___ fifty,but a number of them___ absent for different reasons.A.were;was B.was;wasC.was;were D.were;were2.When and where to build the new factory ____ yet.A.has not d
第一题为什么选C,第二题为什么选B不选A,
1.The number of people invited___ fifty,but a number of them___ absent for different reasons.
A.were;was B.was;was
C.was;were D.were;were
2.When and where to build the
new factory ____ yet.
A.has not decided
B.is not decided
C.are not decided
D.have not decided

第一题为什么选C,第二题为什么选B不选A,1.The number of people invited___ fifty,but a number of them___ absent for different reasons.A.were;was B.was;wasC.was;were D.were;were2.When and where to build the new factory ____ yet.A.has not d
1.The number of people invited___ fifty,but a number of them___ absent for different reasons.
第一个空the number of people 是人数,主体是the number,是单数
第二个空是a number of them 作为整体指他们不少人,是复数
2 When and where to build the new factory ____ yet.
决定是要人决定,如果用A应该是HAS NOT BEEN DECIDED YET.应该用被动.

1. C
这里The number of ...说明。。。的数量,强调的是数量,一个单数概念,所以谓语动词用单数。这里就用was
A number of ..许多,强调的是很多,复数概念,谓语动词用复数。这里用were
2. B
这里是不定式短语做主语,When and where to build ...这种非谓语动词做主语时,谓语动词必须用单数,所以排除了C和D...

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1. C
这里The number of ...说明。。。的数量,强调的是数量,一个单数概念,所以谓语动词用单数。这里就用was
A number of ..许多,强调的是很多,复数概念,谓语动词用复数。这里用were
2. B
这里是不定式短语做主语,When and where to build ...这种非谓语动词做主语时,谓语动词必须用单数,所以排除了C和D。
之所以不选A是因为这里没有用上被动语态。句子说的是没有被决定。假如把A改成has not been dicided就可以选。

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C
the number of sth. 某物的数量字——用作单数
B
是考察被动语态~又不是复数~
A的话就不是被动了~

1。 主语the number 单数 用was。 主语a number of people,复数,用were
2。 被动语态,完成时态是has not been decided. 只能选b