Question

this,that,those,it区别

Answer 1

中学考试中涉及到的关于代词区别用法有如下这些：
1.
it、one
it是准确指代前文提到的某事物本身（单数）；复数则需要用they（them);在回答what
is
this?
what's
that时我们用it代替特殊疑问句中的this和that；在回答what
are
these？和what
are
those？时，用they来代替特殊疑问句中的these和those；
one主要用来指代前文提到的某类事物中的一个，也叫泛指用法，其复数用ones，使用one时，其常常带有定语修饰语（前置或者后置
）
that
=
the
one

those=
the
ones
2.
that与其他几个代词用法还有不同，那就时它可以指代前文提到的不可数名词。
下面是些例子供参考：
i　hear
that
you
have
bought
a
new
cellphone.
may
i
have
a
look
at
it（指前文说的那部手机）?
i　lost　my
pen
yesterday
when
i
was
playing.i
have
to
buy
a
new
one(指钢笔这类事物中的一支）
this
book
is
a
little
more
difficult
than
that
one/the
one
on
the
desk(这里的one指代book)
the
weather
in
guangzhou
is
hotter
than
that
in
beijing（that指代前文不可数名词weather）