need的用法

如题所述

need”作为情态动词的用法
一、need表示“需要”或“必须”,通常用于否定句,疑问句,条件句.例如:1.You
needn't
do
it
again.你不需要重复做了.2.He
needn't
worry
about
it.这件事他无需担心.3.Need
he
do
this
homework
first?他需要先做这些作业吗?4.Need
they
fill
in
the
form?他们需要填表吗?二、在否定句中,可以用need的否定形式+不定式完成体.例如:1.We
needn't
have
worried.其实我们不必要慌.2.You
needn't
have
mentioned
it.你本来不必提起这件事.3.You
needn't
have
said
that
when
he
asked.当他问的时候,你其实不必要说.三、needn't后的不定式间或也能用进行式或被动语态.例如:1.He
needn't
be
standing
in
the
rain.他不必要站在雨中.2.We
needn't
be
waiting
in
this
place.我们不必要在这儿等.3.The
hedges
needn't
be
trimmed
thisweek.本周树蓠不必要整修.四、其一般疑问句的答语,肯定用must,否定用needn't.Need
I
go
with
her?我需要和他一起去吗?Yes,you
must.是的,你需要去.No,you
needn't.不,你不必去.
编辑本段“need”作为实义动词时,通常用法是
人+need
+to
do
物+need
+doing
物+need
+to
be
done
例如:The
room
needs
cleaning
=
The
room
needs
to
be
cleaned.房间需要打扫了.另外,“need”作实义动词时后还可以直接跟名词.请看下面的例子:It
is
a
question
that
needs
very
careful
consideration.这是一个需要慎重考虑的问题
很简单的方法区别情态动词与实义动词:当need为情态动词时,意思是“必要”,否定为"needn't",后面大多接动名词,表示动作;
当need为实义动词时,意思是“需要”,否定为"don't
need",后面大多跟名词.
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第1个回答  2020-04-30
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