Question

强调句 It is (was) 被强调部分+ that (who) + 句子其他部分 的问题！！！

Answer 1

你举的不是病句，可以用the的
e.g.
It
is
an
English
book
(that
/
which)
I
bought
yesterday.
它是我昨天买的书。(本句是对What
is
that?问句的回答，that所引导的是定语从句，that可被省略)
It
was
the
English
book
that
I
bought
yesterday.
昨天我所卖的就是这本书。(本句相当于对I
bought
the
English
book
yesterday中an
English
book进行强调)
the
experiment
my
father
did
in
the
lab
yesterday
evening此句不是完整的句子，是一个定语从句，“my
father……”修饰“the
experiment”
the改成an后（an
experiment
my
father
did
in
the
lab
yesterday
evening），把an
experiment放到my
father
后就行了。
被强调的是人时两个都可以用e.g.
It
is
my
mother
that/who
cooks
every.

Answer 2

你举的例子不是病句。
当强调句是人的时候
who\that
都可以
你举的例子剩下的部分可以还原成my
father
did
the
experiment
in
the
lab
yesterday
evening
。
the
在这里是特指。
我的解答完了，O(∩_∩)O~

Answer 3

你好！
这个判断方法是对的。
但是你举得例子是个病句。
当强调人的时候，可以用that也可以用who(m)
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