第1题:
A.arrives
B.arrive
C.will arrive
D.arrived
第2题:
If we ___ the other road ,we might have arrived here in time for the meeting. ( )
A.take
B.had taken
C.took
D. have taken
第3题:
_____ tomorrow, we should be glad.
A、Were they to arrive
B、They were to arrive
C、They would arrive
D、They arrive
第4题:
A、had I got
B、I had got
C、had I arrived in
D、I had arrived at
第5题:
When we arrived, we found the meeting room crowded with _______ students.
A、quite a few
B、only a few
C、few
D、a few quite
第6题:
A、in
B、for
C、at
D、with
第7题:
Hardly ______ when the door suddenly closed.
A. they had arrived
B. they arrived
C. did they arrive
D. had they arrived
9.答案为D。他们刚到门突然就关上了。副词hardly置于句首时主谓倒装,助动词提前。根据题意,主句动作发生在从句之前,从句中动词是过去式,因此主句中的动词应该用过去完成式。
第8题:
第9题:
We are pleased to know that you have planned to come to the Autumn Guangzhou Fair.We wish to discuss with you some other important things if you could come()your earliest convenience.
第10题:
第11题:
was raining
would be raining
had been raining
rained
第12题:
dismissed
deserted
resigned
withdrew
第13题:
The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, __1__ this is largely because, __2__ animals, we stand upright. This means that our noses are __3__ to perceiving those smells which float through the air, __4__ the majority of smells which stick to surfaces. In fact, __5__, we are extremely sensitive to smells, __6__ we do not generally realize it. Our noses are capable of __7__ human smells even when these are __8__ to far below one part in one million.
Strangely, some people find that they can smell one type of flower but not another, __9__ others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate __10__ smell receptors in the nose. These receptors are the cells which sense smells and send __11__ to the brain. However, it has been found that even people insensitive to a certain smell __12__ can suddenly become sensitive to it when __13__ to it often enough.
The explanation for insensitivity to smell seems to be that brain finds it __14__ to keep all smell receptors working all the time but can __15__ new receptors if necessary. This may __16__ explain why we are not usually sensitive to our own smells we simply do not need to be. We are not __17__ of the usual smell of our own house but we __18__ new smells when we visit someone else’s. The brain finds it best to keep smell receptors __19__ for unfamiliar and emergency signals __20__ the smell of smoke, which might indicate the danger of fire.
1________________
[A] although
[B] as
[C] but
[D] while
第14题:
We have to wait for a while because Mum _____cooking yet.
A. has finished
B. didn't finish
C. hasn't finished
第15题:
A、to lie
B、lay
C、lying
第16题:
A.come along
B.come about
C.come across
D.come on
第17题:
第18题:
A、he had come/than
B、he had come/when
C、had he come/than
D、had he come/when
第19题:
第20题:
It's time we()the lecture because everybody has arrived.
第21题:
引航员什么时间来?()
第22题:
have come
when
will be
hotter than
第23题:
Filter masks with a combination filter should be brought and used whenever necessary
Only explosion-proof equipment(marked EEx)should be used
Avoid breathing petroleum gases,especially if they come from sour crude(smell of rotten eggs)
so far as possible,take early and substantial action to keep well clear
第24题:
has left
had left
has been away
had been away