题目内容

Reports showed that it was not the first time this state-owned firm ________ serious accidents.


  1. A.
    has happened
  2. B.
    had happened
  3. C.
    has experienced
  4. D.
    had experienced
D
解析:根据固定句型It is/was the first time that…has/had done sth.判断,排除A、C;happen为不及物动词,后不接宾语;experience(经历)为及物动词,后接宾语。故选D.
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Clone Technology Like Driving Cars

  The recent death of the world's most famous sheep--Dolly the clone--has not dampened(使沮丧)the enthusiasm(热情)of Chinese scientists, who are working hard to make more breakthroughs(突破)in clone technology.

  “It is hard to say whether Dolly died at a relatively young age or died from defects(缺陷)in reproduction.”Du Miao, a researcher with the Biology and Growth Institute of the Chinese Academy of Sciences, told China Daily in Beijing yesterday.“But Dolly's case reminds us that both Chinese and foreign scientists should put more efforts into improving clone technology as well as disease treatment techniques in the field of cloning animals.” He said his institute, in co operation(合作)with Yangzhou University in Eastern China's Jiangsu Province, had cloned more than 10 sheep since 1999 and the oldest is nearly five. They are all still alive.

  Li Ning, deputy(代表)director of the National Key Laboratory of Agricultural and Biological Technology, who is also a professor with the Beijing Based China Agriculture University, said, “Clone technology is actually progressing well. Dolly is the first cloned sheep after all. Like driving cars, new drivers meet with accidents more easily, but the more you drive, the easier and safer you feel. In the future, the death rate of cloned animals will be reduced with technological developments.”

  “Official reports show seven locally cloned sheep are still alive. Clone technology in China is gradually approaching(接近)a level of commercialization(商业化),”Li added. But Wang Yu, deputy(代表)director of the Biological Technology Centre under the Ministry of Science and Technology, said the commercialization of clone technology depends on market demand.

(1) Which of the following statements is ture?

[  ]

A.Some Chinese scientists believe Dolly died from defects in reproduction.

B.Some Chinese scientists think Dolly's death has dampened their enthusiasm.

C.Some Chinese scientists are satisfied with their successes in clone.

D.Some Chinese scientists think they should improve not only disease treatment techniques but also clone technology.

(2) What's Li Ning's purpose to take driving cars for example?

[  ]

A.To tell the people clone technology was too difficulty in the past.

B.To show clone technology is difficult in the beginning and has a bright future.

C.To show clone technology will be more difficult in the future.

D.To tell people Chinese scientists met too much difficulty in the beginning.

(3) From the passage, we can know _____.

[  ]

A.the Chinese clone technology is behind some other countries

B.the Chinese scientists learn lessons from Dolly

C.the Chinese clone technology is Well Developed

D.the Chinese clone technology is actually developing well

(4) The underlined word“case”in the second paragraph means ______.

[  ]

A.场合
B.讼案
C.情形
D.箱子

TOKYO — Our kids, the Japanese government announced, have forgotten how to behave. They can’t be bothered with housework. If they see someone being wronged, they probably look the other way.

Few countries have placed more importance on being well-behaved in public than Japan. The simplest requests for directions often result in guided tours. Smiling shopkeepers are still the rule. Lost wallets usually make their way to their owners.

But according to recent surveys(调查), all that may be going the way of the ancient hair-do(发式). And Japan’s government has gone into something of a crisis mode(危机时刻).

A Japanese Education Ministry Survey formed late in 1999 and made public last month found that Japan moves behind other nations in teaching youngsters right from wrong.

It also reported that Japanese children are less helpful and do far less housework than their foreign peers(同龄人) in all classes. But they are better about taking dirty dishes to the kitchens after dinner.

In addition, Japanese kids are more likely to dry their hair and carry cell phones than American and Chinese kids, according to another survey, by a Tokyo-based tank(专家小组).

Children in about 8 per cent of public school classrooms are so disorderly that teachers cannot hold lessons, further recent reports show. children refuse to sit, to listen or to stop talking.

Older and middle-aged Japanese continue to have a solid sense of good manners and social justice(正义, 公正), says Professor Yoshina Hirano from Shinshu University, who was appointed to direct the ministry’s survey.

Despite the knowledge of good manners among adults, the breakdown in manners may be spreading, he said.

1. From the first paragraph, we can infer that _______.

A. the Japanese government had gone bad

B. kids in Japan have a bad memory

C. kids in Japan seldom help their parents with housework

D. kids in Japan are too busy to help others

2. The second paragraph seems to show us that _______.

A. the education system of Japan is better than that of any other country

B. shopkeepers in Japan are too kind to their customers

C. Japanese kids often find wallets on their way to their schools

D. Japanese adults in public places act politely to each other

3. It is implied(暗含) in this passage that Japanese kids _______.

A. spending much time doing their homework    

B. lead an advanced modern life

C. have their hair cut too often          

D. often wash dishes after dinner

It is often said that man has become the enemy of our planet. This is no exaggeration(夸张), for reports show that man’s greed has done much to destroy the earth. Man, in his greedy desire for financial growth, has polluted the air, land and water, and has robbed our valuable natural resources. Man’s industrial plants pour out poisonous waste that pollutes the sea and puts life in the sea under the threat of dying out; at the same time, they release alarming amounts of carbon dioxide, chlorofluorocarbons (CFCs) and other pollutants. Small wonder that the air now is much warmer and more impure than ever before.

Of course, this is not just because of man’s greed—it is man’s pressing need as well. For instance, in developing countries, huge financial foreign debts have forced governments to approve the cutting of forests for agriculture or ranching. As a result, forests are cut down just to meet man’s immediate needs.

Perhaps unknowingly,man has changed the make-up of the earth's atmosphere. Scientific studies have shown that CFCs used in refrigerators and industrial cleaners are fast destroying the ozone layer—a protective layer in the atmosphere that protects us against the harmful effects of the sun’s ultraviolet (紫外线)rays. In fact, documented reports have shown a terrible fact that there are “holes” in the ozone layer over the Antarctic. And they appear to be expanding.

Faced with these environmental problems, world leaders have shown deep concern. The UN Environmental Programme (UNEP) has arranged international agreements like the Vienna convention of 1985 and the Montreal Protocol of 1989 to preserve the ozone layer by controlling the production, use and trade of destructive chemicals.

There may be some doubt as to how effectual these agreements may be, given that some countries still maintain an “I-don’t-care” attitude. Their attitude is probably due to their failure to grasp the importance of the problem. Then, there is no doubt that environmental education on an international scale(规模)is greatly needed, so that all countries, great and small—the “haves” and the “have nots”—may realize their responsibilities for our planet.

In the meantime, the UNEP seems to have taken steps in the right direction, and it is hoped that in the not so distant future, all nations of the world will join hands in saving mother earth.

1.Which of the following is a reason for the cutting and burning of forests?

A. To build houses for more population.

B. To have land for agriculture.

C. To export trees to other countries.

D. To build industrial plants. 

2.The holes in the ozone layer are largely due to________.

A. man’s research activities                                B. the greenhouse effect

C. the ultraviolent                                                 D. harmful chemicals

3.Why don’t some countries care about the problem of the environment?

A. They don’t want to put their lives in danger.

B. They just don’t know how to solve the problem.

C. They haven’t realized the seriousness of the problem.

D. They don’t want to break their international commitment.

4.What is the author’s attitude towards the future of the environment?

A. Hopeful.                B. Unconcerned                          C. Doubtful                          D. Objective

 

It is often said that man has become the enemy of our planet. This is no exaggeration(夸张), for reports show that man’s greed has done much to destroy the earth. Man, in his greedy desire for financial growth, has polluted the air, land and water, and has robbed our valuable natural resources. Man’s industrial plants pour out poisonous waste that pollutes the sea and puts life in the sea under the threat of dying out; at the same time, they release alarming amounts of carbon dioxide, chlorofluorocarbons (CFCs) and other pollutants. Small wonder that the air now is much warmer and more impure than ever before.

Of course, this is not just because of man’s greed—it is man’s pressing need as well. For instance, in developing countries, huge financial foreign debts have forced governments to approve the cutting of forests for agriculture or ranching. As a result, forests are cut down just to meet man’s immediate needs.

Perhaps unknowingly,man has changed the make-up of the earth's atmosphere. Scientific studies have shown that CFCs used in refrigerators and industrial cleaners are fast destroying the ozone layer—a protective layer in the atmosphere that protects us against the harmful effects of the sun’s ultraviolet (紫外线)rays. In fact, documented reports have shown a terrible fact that there are “holes” in the ozone layer over the Antarctic. And they appear to be expanding.

Faced with these environmental problems, world leaders have shown deep concern. The UN Environmental Programme (UNEP) has arranged international agreements like the Vienna convention of 1985 and the Montreal Protocol of 1989 to preserve the ozone layer by controlling the production, use and trade of destructive chemicals.

There may be some doubt as to how effectual these agreements may be, given that some countries still maintain an “I-don’t-care” attitude. Their attitude is probably due to their failure to grasp the importance of the problem. Then, there is no doubt that environmental education on an international scale(规模)is greatly needed, so that all countries, great and small—the “haves” and the “have nots”—may realize their responsibilities for our planet.

In the meantime, the UNEP seems to have taken steps in the right direction, and it is hoped that in the not so distant future, all nations of the world will join hands in saving mother earth.

1.Which of the following is a reason for the cutting and burning of forests?

A. To build houses for more population.            B. To have land for agriculture.

C. To export trees to other countries.                           D. To build industrial plants. 

2.The holes in the ozone layer are largely due to________.

A. man’s research activities                                     B. the greenhouse effect

C. the ultraviolent                                                      D. harmful chemicals

3.Why don’t some countries care about the problem of the environment?

A. They don’t want to put their lives in danger.

B. They just don’t know how to solve the problem.

C. They haven’t realized the seriousness of the problem.

D. They don’t want to break their international commitment.

4.66. What is the author’s attitude towards the future of the environment?

A. Hopeful.                         B. Unconcerned                 C. Doubtful                          D. Objective

 

A. deadly  B. tested    C . identified   D. activity    E. independently  F. resistance 

G. treat  H. lifelong    I. highly  J. seasonal

 

Evidence is increasing that common influenza viruses are becoming resistant to the main drug used to treat them. The drug is oseltamivir, also known as Tamiflu.

The most common ___41___ flu virus found in the United States this year is type A (H1N1). During the last flu season, twelve percent of H1N1 viruses ___42___ in the United States were resistant to Tamiflu. This year, researchers at the Centers for Disease Control and Prevention say ___43___ is close to 100 percent. Still, they say early reports show that flu___44___ has been low so far this year.

The research team is reporting its findings in the Journal of the American Medical Association. Alicia Fry led the team. Doctor Fry says it is better to prevent the flu than to have to ___45___ it. And the best form of prevention, she says, is getting vaccinated (进行预防接种) each year against influenza.

Viruses change, or mutate, (变异) so flu vaccines must be reformulated each year to target the most common threats.

But last week, two teams working ___46___ reported a discovery that could help lead to a universal flu vaccine. The hope is to develop a vaccine that could give ___47___ protection against a majority of flu viruses, including bird flu.

The scientists ___48___ a protein that inactivates the flu virus before it can mutate.

One team used an antibody found in blood donated by an individual. Scientist Ian Wilson at the Scripps Research Institute in California says the antibodies proved ___49 ___ effective in laboratory mice exposed to deadly levels of virus. He says they gave complete protection .

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