2021年秋季北京邮电大学网络教育英语入学测试模拟题及答案23

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(十一)

Like everyone else working at the Limerick nuclear-power(核能)plant,Stanley Watras had to pass through the monitors(监测器)before leaving the building.Most of his co-workers passed through without a problem,but Watras,an engineer,continually set off alarms(警报).Some days he was found to be carrying six times more radiation(辐射物)than normal.Neither Watras nor his co-workers could understand where he was picking it up.

Then one day Watras went through the door at Limerick and turned and walked back through the monitors without ever entering the power block.Yet the machines still said he was carrying radiation.“If I wasn’t picking up radiation at work,there was only one place it could be coming from.My house.”

When scientists came to test the Watrases’home in the countryside,they found out what was the matter.The house contained so much radon(氡)that living in it for a year was like being exposed(暴露)to 260,000 chest X-rays.In the year the Watrases had spent there,they had increased their chances of getting lung cancer(癌症)by 13 or 14 percent.

The next day the Watrases took down their Christmas tree,put their clothes in some bags and moved into a nearby hotel.“It was terrible,”says Watras.

The owner of the Limerick plant took charge of dealing with the Watrases’radon problem as an experiment.Scientists studied every corner of the house.When the ground was dug up,they found that under the house there was a uranium(铀)-bearing rock.

1.It was because _____that Stanley Watras was carrying six times more radiation than normal.

A.he worked at a nuclear-power plant

B.there was something wrong with the monitors

C.he lived in a house in the countryside

D.his house was built on a uranium-bearing rock

2.The monitors at the gates of the plant building gave alarms.

A.only when Watras was leaving the building

B.whenever Watras’s co-workers were leaving the building

C.only when Watras was passing through one day

D.whenever Watras was passing through them

3.Watras understood he was picking up radiation at home as.

A.he always set off alarms when passing through the monitors

B.most of his co-workers passed through the monitors without problem

C.he proved one day he wasn’t picking up radiation at work

D.scientists found out his house contained radiation

4.The Watrases moved into a hotel because.

A.they had been exposed to 260,000 chest X-rays

B.they might have got lung cancer

C.the house contained too much radon

D.scientists found under his house there was a uranium-bearing rock

5.Which of the following is true,according to the passage?

A.The Watrases will get lung cancer.

B.The Watrases will have more chances to get lung caner than ordinary people.

C.The Watrases will not get lung cancer at all

D.The Watrases do not worry about their health.

(十二)

Go and watch the baby when he is asleep.See how his chest(胸膛)rises and falls,then rises and falls again.

He does not know what he is doing,but he breathes as perfectly as the oldest and wisest man in the world.He began to breathe when he was born,and he will not stop until he dies;still he does it without thinking about it.

See how long you can hold your breath and be comfortable.

In some places men dive in the ocean for pearls(珍珠).They pick up shells(贝壳)that hold the pearls,and the longer they stay under water the more pearls they can find.For this reason they hold their breath as long as they possibly can.Yet even these pearl divers cannot go without breathing for a long time.

Watch to see how many times a man draws his breath every minute.Some men breathe fifteen times a minute;an elephant breathes only eight times.It was told that a mouse breathes a hundred and twenty times each minute.

No one needs to tell us that what we breathe every minute every day is air.It is around us everywhere,like a wonderful ocean that we cannot see.It also stretches far above us and above the clouds.

If you blow on your hand,you feel the air even though you cannot see it.So,too,when the wind blows,you do not see it,but you feel it rushing past.

Our breathing takes oxygen out of the air.

1.Which of the following is not true?

A.A baby can breathe as perfectly as anybody

B.A baby can breathe without thinking about it.

C.A wise man can’t breathe better than a baby.

D.A baby breathes worse than old people.

2.Pearl divers can hold their breath____.

A.for a long time

B.as long as it is necessary

C.as long as they want

D.when they stay under water

3.It is said that a mouse breathes______.

A.two times each second

B.eight times each second

C.fifteen times each minute

D.fifty times each minute

4.We cannot see air,______.

A.and we cannot breathe it

B.and we cannot feel it,either

C.but we can feel it

D.but we can touch it

5.In the first paragraph,it reads“his hest rises and falls,then rises and falls again”,this means that the man _____.

A.is ill.

B.is going to die

C.is breathing

D.is going to speak

参考答案：

(十一)

1-4:DDCCB

(十二)

1-4:DDACC

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