Question

英语求助，请详细解答。。谢谢~

56.it’s impossible for us to win this game. _________. Let’s try our best.
A.possible B.what a pity C.good luch D.sorry to hear that

57.water______changed into gas at a high temperature.
A.must be B.were C.can be D.should be

53.we’ll tell him about it as soon as he__________.
A.will return B.returns C.returned D.return

56.linlin told me she________there with me the next day.
A.had gone B.would go C.will go D.went

58.they__________we were there at that time.
A.didn’t know B.haven’t known C.has know D.don’t know

41.our classroom must be made_____all the time.
A.clean B.to clean C.cleaning D.cleans

19.mr.lee went to help his students_____their maths.
A.for B.with C.by D.from

Answer 1

57.C 19.B 41.A 58.A 56.B

Answer 2

依次为C C D B A C B
两年不用了不知到水平啥样了嘿嘿

Answer 3

1.
把句子简化：The
reason
is
(
that
)
。why
he
was
late
today是定语从句修饰The
reason
，he
met
with
a
traffic
accident
on
the
way
here是表语从句，因为在is
后面，看这个表语从.（表语从句也是需要主谓宾的）句成分已经齐全，所以用了that。如果用because，虽然中文很翻译的通，但是从结构上来讲是不通的：is
后面是充当表语，而用了because，成了一个原因状语，不对。
2.
其实也可以简单的记住：the
reason
why
```(that)是固定句型，用了这个在用because意思重复，英语上两个是不能一起用的

Answer 4

The
reason(
why
he
was
late
today
是修饰reason，可以省略来看)is
that
he
met
with
a
traffic
accident
on
the
way
here
一方面，可以看出That
(he
met
with
a
traffic
accident
on
the
way
here是内容，可以省略来看)
is
reason.
就是说That
is
reason.
另一方面，而The
reason
why是固定搭配，而英语中用了reason
why后是规定不可以用because的。

Answer 5

(
that
)
he
met
with
a
traffic
accident
on
the
way
here
是表语从句，要接that
,because不可以当这个成分