The dangerous virus in the next few weeks in the laboratory can cause fatal diseases. A．studying B．studied C．to study D．to be studied 题目和参考答案——青夏教育精英家教网—

题目内容

The dangerous virus ____ in the next few weeks in the laboratory can cause fatal diseases.

A．studying

B．studied

C．to study

D．to be studied

【答案】

【解析】考查非谓语动词。to be done 表示将要被做，A项表示主动进行；B项表示完成被动；C表示将要主动.

句意为实验室里接下来的几个星期里要被研究的病毒会引起致命的疾病

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While all my classmates seen to be crazy about a one-way ticket to Mars(火星), I’d rather say Mars is totally unsuitable for human existence. People won’t have enough food supplies there, and the terrible environment would make it impossible for them to live a long life. Besides, the journey won’t be safe. Can anybody explain to me just why people would go to Mars, never to return?

Steve Minear, UK

Here are the things you can think of: the desire to explore a foreign and unique environment, the excitement of being the first humans to open up a new world, the expectation of fame and glory…For scientists there is another reason. Their observations and research will probably lead to great scientific achievements.

Donal Trollop, Canada

There are already too many people on the Earth. I think that sometime before the end of the century, there will be a human colony(殖民地)on Mars. It will happen when people finally realize that tow-way trips to the red planet Mars are unnecessary. Most of the danger of space Flight is in the launches(发射) and landings. Cutting the trip home would therefore reduce the danger of accidents, save a lot of money, and open the way to building an everlasting human settlement on another world.

Enough supplies can be sent on ahead. And every two years more supplies and more people will needs, and Mars is far more pleasant than the other planets in the outer space.

Paul Davies. USA

The main purpose of Steve Minear’s writing is .

A. to report his classmates’ discussion B. to invite an answer to his question

C. to explain the natural state of Mars D. to show his agreement on going to Mars

Which of the following best states Donal Trollop’s idea?

A. There is a plan to send humans to Mars.

B. There are many reasons for going to Mars.

C. Scientists become famous by doing research on Mars.

D. It is possible to build an Earth-like environment on Mars.

Paul Davies points out that .

A. humans need only a one-way ticket to Mars.

B. two-way trips to Mars will be made safe soon

C. it is easy to reduce the danger and cost of flights to Mars

D. it is cheap to build an everlasting human settlement on Mars

What does Paul Davies think of human existence on Mars?

A. Humans will have to bring all they need from the Earth.

B. Humans will find Mars totally unsuitable for living.

C. Humans can produce everything they need.

D. Humans can live longer in the colony on Mars

I was six when I joined my father and two brothers at sunrise in the hayfields of Eufaula,Oklahoma.By the time I was eight I was helping Dad fix up low-income rent properties.He gave me a penny for every nail I pulled out of old boards.

I got my first real job,at JM’s restaurant in town,when I was 12.My main responsibilities were cleaning tables and washing dishes,but sometimes I helped cook.

Every day after school I would head to JM’s and work until ten.On Saturdays I worked from two until eleven.At that age it was unlucky going to work and watching my friends run off to swim or play.I didn’t necessarily like work,but I love what working allowed me to have.Because of my job I was always the one buying when my friends and I went to the local bar Tastee Freez.This made me proud.

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At the age of 12,the author got a job at a restaurant and often worked till late at night because_________.

A.he liked that work

B.he didn’t like playing

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D.he felt rewarded by doing that work

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A.he did not work any more

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B.Children from poor families usually have a very unhappy childhood.

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Risk of death is 3.5 to 5 times greater for obese (肥胖的) smokers than it is for people who have never smoked and are at a normal weight, according to a study published in the November, 2006 issue of the American Journal of Preventive Medicine.

The study, which began with a self-administered questionnaire taken between 1983 and 1989, asked more than 80,000 radiologic technologists aged 22 to 92 questions about age, height, weight and smoking behavior.

BMI (body mass index) was calculated, with a BMI of 30 to 34.9 being considered obese, and 35 and over being very obese. Smoking behavior was analyzed by looking at a person's tobacco consumption level, number of years smoked, and current smoking status. Researchers then followed participants through December of 2002, noting the number of deaths that occurred.

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Key Findings:

20 percent of obese adults in the United States smoke.

Obese smokers face a greater risk of death from cancer and circulatory disease.

Current smoking is a greater risk factor for death by cancer than obesity is, generally speaking.

The higher a person's pack-years (number of packs smoked per day times the number of years smoked) are, the greater the risk of death.www.zxxk.com

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Taking Charge of Your Health

Making healthy choices can be difficult when we're constantly exposed to products that are dangerous to our health, but it's not impossible. With education and some motivation, we all have the ability to make lasting changes for the better. If you're an overweight smoker worried about gaining weight due to quitting, take heart. It's never too late to change your course and even reduce damage to some extent.

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The long, lonely voyage of the Japanese ghost ship is over.

A US Coast Guard cutter poured cannon fire into an abandoned Japanese ghost ship that had been drifting since last year’s tsunami (海啸), sinking the vessel into waters more than 305 meters deep in the Gulf of Alaska and removing the danger it posed to shipping and the coastline on Thursday.

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根据短文内容，从短文后的A-G选项中选出能填入空白处的最佳选项。选项中有两项为多余项。

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____4____.

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___5____..

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