题目内容

13.        Not until the civil war is overto regard economic  construction as the centre of all our work.(possible)

只有在国内战争完结之后，才有可能以经济建设为一切任务的中心。

13. will it be possible考查状语从句的倒装。not... until…表示"直到.. 才.. "。not有时被no  nobody, nothing,never,hardly, little等否定词所取代。当notuntil位于句首时，主句中的主语、谓语要使用倒装语序」not... until强调句式：It was not until... that.."

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1 . He was so deep in thought thinking of the problem         the tree without noticing it. (knock)

他思考问题太投入了，以致一不留神撞到了树上。

(   ) 5. With the development of the Internet and information technology，the new media times come eventually，        your embracement or opposition.

A. regardless of    B. instead of    C. but for    D. except for

1. So fast                that we can hardly imagine its speed.(travel)

光传播的速度快到我们难以想象。

8. It was April29,2011        and Kate Middleton walked into the palace hall of the wedding ceremony.(prince)| 

在2011年4月29日，威廉王子和凯特•米德尔顿走进了婚礼的殿堂。

18. Hardly had he got out of the court                  a lot of questions to him.(raise)

他刚一走出法院记者们就向他提出了很多问题。

25. You are certain to live your dream        great efforts and lay emphasis on improvements in efficiency.(condition)

你一定会梦想成真，条件是你努力并强调效率的改进。

9.You will not lose a penny if you accept this arrangement, but it        .(deal)

你如接受这种安排将无损你一根毫毛，但会省下我们一大笔钱。

  A super drug that could remove Alzheimer's(痴呆症) ，heart disease and diabetes(糖屎病) and help people live to 100 is being developed by scientists. Their research is based on the iden?tification of three genes that improve long and healthy lives and prevent diseases of aging. Medi?cally controlling the proteins made by the " longevity genes" will allow millions to live longer, predicts Nir Barzilai.

Those people whose DNA strongly features the three genes are 80 percent less likely to de?velop Alzheimer's. The genes also fight against the deadly impact of smoking, bad diet,obesity and lack of exercise.

  Already，several laboratories are working on a pill to imitate the benefits of the genes and Dr Barzilai thinks it could be tested within three years. The pill could remove some diseases that damage the old people. "The advantage of finding a gene that involves longevity is that we can develop a drug that will imitate exactly what this gene is doing," he said. "The biology we're trying to uncover is that if we can imitate that,long life can be really terrific."

  Of the three longevity genes, two increase the production of so-called good cholesterol(胆固醇) ，which reduces the risk of heart disease. The third prevents diabetes. They were discov?ered by Dr Barzilai's team while studying the DNA of 500 Ashkenazi Jews with an average age of 100. The chances of living that long are one in 10,000 but the study group―which shared relatively few common ancestors―was 20 times more likely to hit the century. Dr Barzilai said, "Thirty percent of them were overweight and 30 percent smoked two packs of cigarettes a day for more than 40 years,however they could still live to 100."

  But Andrew Ketteringham, of the Alzheimer's Society, said. " Alzheimer's disease, a most common disease, is likely to be caused by a combination of genetic disposition(遗传倾向) ，lifes?tyle and life events. Many genes are probably involved.”

(   ) 1. According to the text， some people are able to live to one hundred years because of

   A. magical medicine   B. three special genes

   C.  having no disease   D. once being sportsmen

(   ) 2. Why does the discovery of the longevity genes mean a lot?

   A.Because it can bring great benefits to economic development.

   B.Because it can help people change their unhealthy genes.

   C.Because it helps produce a drug that can make people live longer.

   D.Because it will help scientists to build up a new branch of biology. 

(   ) 3. From Paragraph 4 we can infer that        .

   A.longevity genes cannot help reduce diseases

   B.the study group is all from the same family

   C.good habits have no effects on the health of people

   D.the longevity genes may protect the people from the harm of bad habits 

(   ) 4. What is Andrew Ketteringham's attitude toward the study?

   A. Positive.   B. Critical.   C. Neutral.   D. Satisfied.

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