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1. A sudden blizzard occurred in Beijing last night, _______________ (cause) great inconvenience in transport.

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題目來源：全品作業(yè)本高中英語必修3新課標(biāo)外研版 > Period One Introduction & Reading and Vocabulary

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5. More money should be spent on the improvement of the public____________________(交通運(yùn)輸）.

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George Eberhardt turned 107 last month, and scientists would love to know how he and other older folks like him made it that far. So he's going to hand over some of his DNA.

He's one of 100 centenarians (百歲老人)taking part in a project that examines some of the oldest citizens with one of the newest scientific tools ： wholegenome sequencing (全基因組測試)，the deciphering of a person's complete collection of DNA.

Scientists think DNA from very old healthy people could offer clues to how they have lived so long. And that could one day lead to medicines to help the rest of us stay disease-free longer.

"It's very hard to get to 105 without some genetic advantages," says Dr Thomas Perls, a geriatrics(老年醫(yī)學(xué))expert at Boston University. Dr Perls is helping find centenarians for the Archon Genomics X Prize com?petition. The X Prize Foundation, best known for a space-flight competition, is offering up $ 10 million in prize money to researchers who decipher the complete DNA code from 100 people older than 100. The contest will be judged on accuracy, completeness and the speed and cost of sequencing.

Mr Eberhardt played and taught tennis until he was 94 and says he's participating in the X Prize project because he's interested in science and technology. It's not clear his genes will reveal much. Nobody else in his extended family reached 100， and he thinks only a cou?ple reached 90， he says in a telephone interview.

So why does he think he has lived so long? He attributes it to 70 years of marriage to his wife, Marie. She in turn cites his "intense interest in so many things" over a lifetime, from building radios as a child to pursu?ing a career in electronics research.

But scientists believe there's more to it, and they want to use genome sequencing to investigate. Dr Richard Cawthon of the University of Utah, who is see?king longevity genes by other means, says it may turn up genetic features that protect against multiple diseases or that slow the process of aging in general.

1. What does the underlined word "deciphering" in the second paragraph probably mean?

A. Separating. B. Interpreting.

C. Gathering. D. Comparing.

2. The fourth paragraph is mainly about .

A. what the Archon Genomics X Prize competition

is about

B. the significance of studying the genes that lead to longevity

C. how whole-genome sequencing is applied to the study of genes

D. the genetic advantages the centenarians have

3. Which of the following is TRUE about Mr Eberhardt?

A. He doesn't have any genetic advantages.

B. Most of his family have been long-lived.