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Every few years, the coal workers         their lungs X-rayed to ensure their health.

A.are havingB.haveC.have hadD.had had

B

解析试题分析:句意:每个几年煤矿工人就要进行一次肺部x光检查来确保他们的健康。这是经常性的行为,故用一般现在时,故选B。
考点:考查动词时态的用法。
点评:本题难度适中。动词时态与语态也是高中阶段的重难点之一,需要考生能够理解句意进而对动词的时态做出正确的判断。
即学即练:—When did you come back?
—An hour ago. You      the computer games.
A. have played  B.were playing  C.played  D.had played
解析:B。句意:--你什么时候回来的?--一小时前。你那时在玩电脑。此句可理解为You were playing the computer games an hour ago.

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科目:高中英语 来源: 题型:阅读理解

An Australian man who has been donating his extremely rare kind of blood for 56 years has saved the lives of more than two million babies.

James Harrison has an antibody in his plasma that stops babies dying from Rhesus disease, a form of severe anaemia. He has enabled countless mothers to give birth to healthy babies, including his own daughter, Tracey, who had a healthy son thanks to her father's blood.

Mr. Harrison has been giving blood every few weeks since he was 18 years old and has now racked up a total of 984 donations. When he started donating, his blood was deemed so special that his life was insured for one million Australian dollars.

He was also nicknamed the “man with the golden arm” or the “man in two million”. He said: “I've never thought about stopping. Never.” He made a pledge to be a donor aged 14 after undergoing major chest surgery in which he needed 13 litres of blood. “I was in hospital for three months,” he said. “The blood I received saved my life so I made a pledge to give blood when I was 18.”

Just after he started donating he was found to have the rare and life-saving antibody in his blood. At the time, thousands of babies in Australia were dying each year of Rhesus disease. Other newborns suffered permanent brain damage because of the condition. The disease creates an incompatibility between the mother's blood and her unborn baby's blood. It stems from one having Rh-positive blood and the other Rh-negative.

His blood has since led to the development of a vaccine called Anti-D. After his blood type was discovered, Mr. Harrison volunteered to undergo a series of tests to help develop the Anti-D vaccine. “They insured me for a million dollars so I knew my wife Barbara would be taken care of,” he said. “I wasn't scared. I was glad to help. I had to sign every form going and basically sign my life away.”

Mr. Harrison is Rh-negative and was given injections of Rh-positive blood. It was found his plasma could treat the condition and since then it has been given to hundreds of thousands of women. It has also been given to babies after they are born to stop them developing the disease.

It is estimated he has helped save 2.2 million babies so far. Mr. Harrison is still donating every few weeks now.

How old is James Harrison?

A. 56           B. 70           C. 74           D. 78

What does the underlined phrase “two million” refer to?

A. babies           B. mothers      C. dollars          D. all of the above

   Why did James decide to donate his blood? Because _____.

    A. his daughter asked him to help her son

    B. he has a golden arm worth a million dollars

    C. a vaccine called Anti-D is to be developed

    D. someone else’s blood saved his life

The sentence “The disease creates an incompatibility between the mother's blood and her unborn baby's blood” (underlined in Paragraph 5) suggests that _____.

    A. babies suffer permanent brain damage before born

    B. the mother and the baby have different types of blood

    C. Rhesus disease contributes to permanent brain damage

    D. all the patients have a rare antibody in their blood

   What can we infer from the sixth paragraph?

    A. Some of the tests to develop the vaccine are dangerous.

    B. His wife Barbara needed to be taken care of badly then.

    C. Mr. Harrison was glad to help develop a new vaccine.

    D. His blood type was accidentally discovered after tests.

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阅读下面短文,掌握其大意,然后从31—50各题所给的四个选项中,选出最佳选项,并在答题卡上将该项涂黑。
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【小题1】
A.asB.butC.andD.or
【小题2】
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【小题3】
A.believeB.thinkC.guessD.hope
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A.luckyB.happyC.sorryD.angry
【小题5】
A.excuseB.ideaC.causeD.answer
【小题6】
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A.BeforeB.BehindC.BeyondD.Against
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【小题10】
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A.hiddenB.filledC.decoratedD.covered
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A.tookB.closedC.filledD.came
【小题14】
A.beforeB.afterC.whenD.that
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请阅读以下购买者的信息,然后匹配购买者和他/她拟购买产品的广告语:
Jack passed the entrance exam and was admitted to a famous university. These days, his father is looking for a mobile phone for him so as to keep in touch with each other closely. 
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【小题1】Jack
【小题2】Tom
【小题3】Mary
【小题4】Joan
【小题5】Bill
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Losing a baby tooth can be fun for a kid. You can put it under your pillow and look forward to finding some money there in the morning. And then you can watch your new permanent(永恒的) tooth grow in its place.

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People usually lose their permanent teeth due to periodontal disease, or gum disease, which is caused by bacteria that attacks the gums. Diseased gums aren’t strong and healthy, so teeth can get loose and fall out. Older people often have many cavities(洞)that have been filled over the years, and these fillings can weaken over time, leading to more tooth decay(腐烂).

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A.should have a false tooth fixed in its place

B.have to put it under your pillow at once

C.will gain a permanent tooth in future

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D.should use denture solution to soak them in his or her mouth

3.Which of the following is NOT true according to the passage?

A.Partial dentures can prevent the remaining teeth from changing position.

B.Old people will find it hard to smile, talk, and eat properly without teeth.

C.A person’s teeth will possibly get loose if diseases strike his gums.

D.It is hard for a person to wear dentures if all his teeth have fallen out.

4.What does the underlined word “weird” mean in the fifth paragraph?

A.inconvenient

B.strange

C.uncomfortable

D.impolite

 

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