第1个回答 2019-07-06
1.
由连系am，is，are构成的句子：变一般疑问句时把am，is，are提到句子的前面，句尾用问号即可。变否定句时直接在am，is，are后面加not即可。例如：
肯定句:he
is
a
student.
一般疑问句:
is
he
a
student?
否定句:
he
is
not
a
student.
反问句:
he
is
a
student,
isn't
he?
he
isn't
a
student,
is
he?
画线提问:
对he提问:
who
is
a
student?
对
a
student
提问:
what
is
he?
or
what
does
he
do?
2.
由情态动词can,
may,
should等构成的句子:
变一般疑问句时把can,may,提到句子的前面,句尾用问号即可.变否定句时直接在can,may,后面加not即可.
例如:
肯定句:
she
can
swim.
一般疑问句:
can
she
swim?
否定句:
she
can
not
swim.
反问句:
she
can
swim,
can't
she?
she
can
not
swim,
can
she?
画线提问:
对she提问:
who
can
swim?
对swim提问:
what
can
she
do?
3.
由行为动词构成的句子:
需要加助词do或does.
变一般疑问句时把do/does放在句子前面.
例如:
肯定句:
they
play
football
after
school.
一般疑问句:
do
they
play
football
after
school?
否定句:
they
don't
(do
not)
play
football
after
school.
反问句:
they
play
football
after
school,
don't
they?
they
don't
play
football
after
school,
do
they?
画线提问:
对they提问:
who
play
football
after
school?
对play
football提问:
what
do
they
do
after
school?
对after
school提问:
when
do
they
play
football?