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it isn't the first time that
It`s the first time that he has been to Australia,isn`t it?中,为什么要用isn`t it,而不用hasn`t he?
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第1个回答 2019-04-04
it是形式主语,that后面的才是主语,句子是对主句it提问,而不是对从句提问.
我在线,有问题可以在线讨论.
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it
isn
't
the
first
time
that
答：
it
是形式主语,
that
后面的才是主语,句子是对主句it提问,而不是对从句提问.我在线,有问题可以在线讨论.
it is
the
first
time
that
中that后是定从还是真正的主语 that可省么...
答：
it is
the
first
time
that
不是定从也不是真正的主语，它是强调the first time这个状语成分的强调句，结构就是it is 加被强调的部分加that,that后面才是真正的句子。所以它是固定结构，that 不能省略。而this is the first time that是定语从句，如果that在句中做宾语that是可以省略的。
it is
the
first
time
that
用法是什么?
答：
如果前面是“
it&#
8194;(will be)is/this (will be)is/that (will be)is+
the&#
8194;
first
/second
;time&#
8194
;that&#
8194;...”句式，表示“某人第几次做某事”。其中，that引导的是定语从句，后面句子的时态用现在完成时；如果前面是it (would...
it
's
the
first
time
that
后为何加完成时?怎么理解
答：
这是一个固定句型，规定了后面需要加完成时。
It is
the
first
time
that
... has/have done sth.It was the first time that ... had done sth.这是某人第一次做某事
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the first time
interesting
first time
in the end
refer to
yesterday
mtime
turn out
athe