sure 和certain 的辨析

Question

sure 可以这么用 I am sure that........... certain能吗 还有什么区别 跪求

Answer 1

二者的不同点:
1.在"It
is
certain
that…/
to
do
something"结构中,It是形式主语,此时一般不用sure.如:
It
is
certain
to
take
him
a
lot
of
time.肯定会占用他很多时间.
It
is
certain
that
two
plus
two
makes
four.二加二得四是确定无疑的.
2."Be
sure
+to
do
something"结构,用于祈使句,这时一般不用certain.如:
Be
sure
not
to
forget
it.千万别忘了.
3.作定语时,sure表示"可靠的,无疑的".而certain修饰可数名词时,意为"某一,某些",修饰抽象名词时,意为"有点,有些".如:
The
student
made
a
sure
answer.学生做出了确凿的回答.
A
certain
Brown
is
waiting
for
you
at
the
gate.门口有个叫布朗的在等着你.
Certain
students
have
failed
in
the
test.有些学生测验没及格.
There
was
certain
coldness
in
her
attitude
towards
me.她对我的态度有点冷淡.
4.在口语中,sure可作副词,用在肯定答语中,相当于surely,certainly,
of
course,而
certain不能用作副词,如:Are
you
going
Sure/Certainly.你去吗
当然啦