-
免费？宅在家学英语？怎么报名？
最
牛英语口语培训模式：躺在家里练口语，全程外教一对一，三个月畅谈无阻！
洛基英语，免费体验全部在线一对一课程：
/
（报名网址）
七。
情态动词
+
完成形式、
时态的考点
1. We _____ our breakfast when an old man
came to the
door. A
）
just have had B
）
have just had C
）
just had D
）
had just had
2. You _____ all
those calculations
！
We have a computer to do that sort of thing. A
）
needn't have done
B
）
must not have done C
）
shouldn't have done D
）
can not have
done
3.
By
the
end
of
this
month
，
we
surely
_____
a
satisfactory
solution
to
the
problem. A
）
have found B
）
will be finding C
）
will have found D
）
are finding
4.
It seems oil _____ from this pipe for some time.
We 'll have to take the machine
apart
to put it right. A
）
had leaked B
）
has been leaking C
）
leaked D
）
is leaking
5. Once environmental
damage _____
，
it takes many years for the system to recover.
A
）
is done B
）
is to do C
）
does D
）
has done 6. Mary's score on the test is the
highest
in her class
；
she ______ have studied very hard. A
）
may B
）
should C
）
must D
）
ought to 7. With all this work on hand
，
he _____ to the cinema last night.
A
）
mustn't go B
）
wouldn't go C
）
must D
）
ought to 8. He came back late
，
______
which
time all the guests had already left.
A
）
after B
）
by C
）
at D
）
during 9. It
was very kind of you to do the washing
up
，
but you _____ it. A
）
mustn't have done
B
）
wouldn't have done C
）
mightn't have done D
）
didn't have to do 10. You _____
her in her office last
Friday
；
she's been out of town for two weeks. A
）
needn't have
seen
B
）
must
have
seen
C
）
might
have
seen
D
）
can't
have
seen
11.
the
fifth
generation
computers
，
with artificial intelligence
，
_____ and perfected now. A
）
developed B
）
have developed C
）
are being developed D
）
will have been developed
12. It's reported that by the
end of this month the output of cement in the
factory_____
by about 10%.
A
）
will have risen B
）
has risen C
）
will be rising D
）
has been rising
13. Sir
Denis
，
who is 78
，
has made it known that much of his collection_____ to the
nation. A
）
has left B
）
is to leave C
）
leaves D
）
is to be left 14. Before the first
non-stop flight made in
1949
，
it_____ necessary for all planes to land for refueling.
A
）
would be B
）
has been C
）
had been D
）
would have been 15. The room is in
a terrible
mess
；
it_____ cleaned. A
）
can't have been B
）
shouldn't have been C
）
mustn't have been
D
）
wouldn't have been 16. Until then
，
his family_____ from him
for six months.
A
）
didn't hear B
）
hasn't been hearing C
）
hasn't heard D
）
hadn't
heard
17. The conference_____ a full week by the time it
ends. A
）
must have lasted
B
）
will have lasted C
）
would last D
）
has lasted 18. Great as Newton was
，
many
of his ideas_____ today and are being
modified by the work of scientists of our time.
A
）
are
to
challenge
B
）
may
be
challenged
C
）
have
been
challenged
D
）
are
challenging 19. I'd rather
read than watch television
；
the programs seem_____ all the
time. A
）
to get worse B
）
to be getting worse C
）
to have got worse D
）
getting
worse
20. My train arrives in New York at eight o'clock
tonight. The plane I would
like to take
from there_____ by then. A
）
would leave B
）
will have left C
）
has left
D
）
had left 21. Research findings show we spend about two hours dreaming every
night. No matter what
we_____ during the day. A
）
should have done B
）
would have
done C
）
may have done D
）
must have done 22. He must have had an accident
，
-
-
-
-
-
-
-
-
-
上一篇：大学英语四级考试语法提高练习(4)
下一篇：大学英语四级考试历年作文真题范文(8)