英语的不定式是什么( 三 )


6 不定式作状语:
we went to the hospital to see our teacher
我们去医院看了我们的老师 。
she is making a test to get a kind of useful
medicine from a tibet flower
她在做试验,从一种西藏花中提取某种有用的药物 。
动词不定式的否定形式:
not + to + 动词原形
the teacher told us not to swim in that river
【英语的不定式是什么】老师告诉我们不要在那条河里游泳 。
it's unfair not to tell us
没告诉我们真是不公平 。
动词不定式是一种非谓语形式 , 即不能做谓语(一般只有动词才能做谓语),可以用来充当主语、表语、宾语等成分 。一般特征就是TO+动词形式;
动词不定式的一般可以用来表示一次性,具体的动作;
1作主语,如:
To
see
is
to
belive
2作表语,如:
My
aim
is
to
become
a
pilot
3作宾语 , 如:
I
want
to
make
a
box
介词短语:
介词短语一般是由动词+介词构成 。
而且这种搭配一般都为固定搭配 。只能靠平时积累 。
如:
give
in
\
look
into\
look
for
\
还有介词后接名词形式:
look
into
the
box;
look
for
a
book
;
giving
in
his
pressure;
四类
实意动词
,系动词,助动词,情态动词
动词不定时:
动词不定式除了谓语不能做,其他成分都可以 。如:我想学好英语 。I
want
to
learn
English
well
to
learn
就是动词不定式做宾语 。我有很多作业要做 。I
have
a
lot
of
homework
to
do
to
do
就是动词不定式做定语 。To
say
is
easy,
to
do
is
hard
to
say,
to
do
就是动词不定式做主语 。My
job
is
to
clean
the
street
to
clean
就是动词不定式做表语