第1个回答 2019-05-22
1、so...
that【这个短语一般分开写,表明中间需要加词】。
如此…以致于;太……以至于
This
is
so
interesting
a
book
that
I
am
interested
by
it.
这本书如此有趣以致于我的兴趣都被激发了。
The
boy
is
so
young
that
he
can't
go
to
school.
=The
boy
is
too
young
to
go
to
school.
转换条件:【只有当so...that
结构中用否定形式时,才能够替换为too...to结构】。
这个男孩太小了还不能上学。
2、too
...to
太...而不能...;很,非常,极其,相当。
I
am
too
tired
to
go
any
further.我太累了再也走不动了。
=I
am
so
tired
that
I
can't
go
any
further.
【特别注意】:当
too...to
结构中,如果所用的形容词表示积极、正面意义时,该结构不表示否定意义,而表示【很,非常,极其,相当】,这时,它【与so...that结构不能替换】。
I
am
【too
=so;very】pleased
to
help
you.我非常高兴帮助你。
3、enough
to
do:足以...
Blair
was
kind
enough
to
do
some
research.
=Blair
was
so
kind
that
he
did
some
research.【这两种结构替换,必须是“肯定句”】。
Tim
is
【not
old
enough
to】
go
dancing.
=Tim
is【
too
young
to
】go
dancing.
=Tim
is
【so
young
that
】he
【can't
】go
dancing.这些替换条件都包含在句子中。
祝你学习进步,时时开心!O(∩_∩)O~~