Question

部分倒装句的主语前的谓语动词时态怎么判断？

Answer 1

部分倒装是指将谓语的一部分如助动词或情态倒装至主语之前。如果句中的谓语没有助动词或情态动词，则需添加助动词do,
does或did，并将其置于主语之前。
1)　句首为否定或半否定的词语，如no,
not,
never,
seldom,
little,
hardly,
at
no
time,
in
no
way,
not
until…
等。
Never
have
I
seen
such
a
performance.
Nowhere
will
you
find
the
answer
to
this
question.
Not
until
the
child
fell
asleep
did
the
mother
leave
the
room.
当Not
until引出主从复合句，主句倒装，从句不倒装。
注意：
如否定词不在句首不倒装。
I
have
never
seen
such
a
performance.
The
mother
didn't
leave
the
room
until
the
child
fell
asleep.
典型例题
1)　Why
can't
I
smoke
here?
At
no
time___
in
the
meeting-room
A.
is
smoking
permitted　　B.　smoking
is
permitted
C.
smoking
is
it
permitted　D.　does
smoking
permit
答案A.
这是一个倒装问题。当否定词语置于句首以表示强调时，其句中的主谓须用倒装结构。
这些否定词包括no,
little,
hardly,
seldom,
never,
not
only,
not
until等。本题的正常语序是
Smoking
is
permitted
in
the
meeting-room
at
no
time.
2)
Not
until
the
early
years
of
the
19th
century
___
what
heat
is.
A.
man
did
know　
B.
man
know　
C.
didn't
man
know　
D.
did
man
know
答案D.　
看到Not
until…的句型，我们知道为一倒装句，答案在C，D
中选一个。
改写为正常语序为，Man
did
not
know
what
heat
is
until
the
early
years
of
the
19th.
现在将not提前，后面就不能再用否定了,否则意思就变了。