这个问题提的好。好多中国的学生学不好英语都跟它有关系。
你记住:在说话的时候,如果句子没有动作,也就是动词的时候,都要加上be(am,
is,
are).
如果有动词,是什么动作就用什么动词。在提问的时候,如果原句有动词,就要借用主动do/
does/
did来帮助原动词构成疑问句、否定句。如:
he
studies
hard.
He
doesn't
study
hard.
Does
he
study
hard?
He
went
to
Shanghai
last
week.
He
didn't
go
to
...
Did
he
go
to...
关于be就更简单了。如:
He
is
a
good
singer.
He
isn't
a
good
singer.
Is
he
a
good
singer?
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