73. According to the passage , what will happen if we hold that science is getting beyond control?

　A. The development of science will hopelessly slow down.

　B. Businesses will have even greater influence on science.

　C. The public will lose faith in bringing about a bright future.

　D. People will work more actively to put science under control.

72. What can we conclude from the recent study?

　A. People think highly of science.

　B. People hold mixed opinions about science.

　C. Science is getting dangerously out of control.

　D. Science is used for both good and bad purposes.

67. The author writes the passage to_______.

　A. show us the function of major sports

　B. encourage us to go in for green sports

　C. discuss the major influence of popular sports

　D. introduce different types of environment-friendly sports

答案　 64.A　 65.B　 66.C　 67.B

Passage 10

(09·重庆E篇)

A recent study, while showing a generally positive attitude toward science, also suggests a widespread worry that it may be “running out of control”, This idea is dangerous.

　Science can be a force for evil as well as for good. Its applications can be channeled either way, depending on our decisions. The decisions we make, personally or collectively, will determine the outcomes of science. But here is a real danger. Science is advancing so fast and is so strongly influenced by businesses that we are likely to believe whatever decisions we come to will make little difference. And, rather than fighting for the best possible policies, we may step back and do nothing.

　Some people go even further. They say that despite the moral and legal objections(反对), whatever is scientifically possible will be done-somewhere , sometime. They believe that science will get out of control in the end. This belief is dangerous too, because it fuels a sense of hopelessness and discourages then from making efforts to build a safer world.

　In our interconnected world, the lack of agreement in and out of the world of science can lead to the failure to control the use of science. Without a common understanding, the challenges of “controlling” science in this century will be really tough. Take human cloning for example. Despite the general agreement among scientists on its possible huge impact(影响) on traditional moral values, some countries still go ahead with the research and development of its related techniques. The outcomes are hard to predict.

　Therefore, discussions on how science is applied should be extended far beyond scientific societies. Only through the untied efforts of people with hope, can we be fully safe against the misuse of science and can science best serve mankind in the future.

66. The author uses power walking as an example mainly because______.

　A. it is an outdoor sport

　B. it improves our health

　C. it uses fewer resources

　D. it is recommended by experts

65. What do we know about golf from the passage?

　A. It is popular in Portugal and Spain.

　B. It causes water shortages around the world.

　C. It pollutes the earth with chemicals and wastes.

　D. It needs water and electricity to keep its courses green.

64. Which of the following is the author most probably in favor of?

　A. Cycling around a lake.

　B. Motor racing in the desert.

　C. Playing basketball in a gym.

　D. Swimming in a sports center.

51. According to the writer, the most amazing thing about the e-nose is that it can___.

A. pick out ripe fruits

B. spot the insects quickly

C. distinguish different damages to the leaves

D. recognize unhealthy tomato leaves

52 We can infer from the last paragraph that the e-nose_____.

A. is unable to tell the smell of flowers

B. is not yet used in greenhouses

C. is designed by scientists at Purdue

D. is helpful in killing harmful insects

答案　 49.C　 50.D　 51.C　 52.B

Passage 9

(09·重庆C篇)

Sports can help you keep fit and get in touch with nature .However, whether you are on the mountains, in the waves, or on the grassland, you should be aware that your sport of choice might have great influence on the environment.

Some sports are resource-hungry. Golf, as you may know, eats up not only large areas of countryside, but also tons of water. Besides, all sorts of chemicals and huge amounts of energy are used to keep its courses(球场) in good condition. This causes major environmental effects. For example, in the dry regions of Portugal and Spain, golf is often held responsible for serious water shortage in some local areas.

There are many environment-friendly sports. Power walking is one of them that you could take up today. You don’t need any special equipment except a good pair of shoes; and you don’t have to worry about resources and your purse. Simple and free, power walking can also keep you fit. If you walk regularly, it will be good for your heart and bones. Experts say that 20 minutes of power walking daily can make you feel less anxious, sleep well and have better weight control.

Whatever sport you take up, you can make it greener by using environment-friendly equipment and buying products made from recycled materials. But the final goal should be “green gyms”. They are better replacements for traditional health clubs and modern sports centers. Members of green gyms play sports outdoors, in the countryside or other open spaces. There is no special requirement for you to start your membership. And best of all, it’s free.

50. What did the scientists do to find out if the e-nose worked?

A. They presented it with all common crops.

B. They fixed 13 sensors inside the device.

C. They collected different damaged leaves.

D. They made tests on damaged and healthy leaves.

49. We learn from the text that plants communicate with each other by____.

A. making some sounds　　　　　　　　　　 B. waving their leaves

C. producing some chemicals　　　　　　　　 D. sending out electronic signals

55. What would be the best title for the passage?

A. Drinking for Better Social Relationships.

B. Experiments of Personality Evaluation.

C. Developing Better Drinking Habits.

D. Physical Sensations and Emotions.

答案　 51.C　 52.B　 53.A　 54.C　 55.D

Passage 8

(09·浙江C篇)

Plants can’t communicate by moving or making sounds, as most animals do. Instead, plants

Produce volatile compounds, chemicals that easily change from a liquid to a gas. A flower’s sweet

smell, for example, comes from volatile compounds that the plant produces to attract insects such as

Bugs and bees.

Plants can also detect volatile compounds produced by other plants. A tree under attack by

Hungry insets, for instance, may give off volatile compounds that let other trees know about the

Attack. In response, the other trees may send off chemicals to keep the bugs away ---- or even

Chemicals that attract the bugs’ natural enemies.

　　 Now scientists have created a quick way to understand what plants are saying: a chemical

Sensor(传感器)called an electronic nose. The “e-nose” can tell compounds that crop plants make

When they’re attacked Scientists say the e-nose could help quickly detect whether plants are being

Eaten by insects. But today the only way to detect such insects is to visually inspect individual

Plants. This is a challenging task for managers of greenhouses, enclosed gardens than can house

Thousands of plants.

　　 The research team worked with an e-nose than recognizes volatile compounds. Inside the

device, 13 sensors chemically react with volatile compounds Based on these interactions, the

e-nose gives off electronic signals that the scientists analyze using computer software.

　　 To test the nose, the team presented it with healthy leaves from cucumber, pepper and tomato

plants, all common greenhouse crops. Then scientists collected samples of air around damaged

leaves from each type of crop, These plants had been damaged by insects, or by scientists who made

holes in the leaves with a hole punch(打孔器).

The e-nose, it turns out, could identify healthy cucumber, pepper and tomato plants based on

The volatile compounds they produce, It could also identify tomato leaves that had been damaged.

But even more impressive, the device could tell which type of damage ---- by insects or with a hole

Punch ---- had been done to the tomato leaves.

With some fine-tuning, a device like the e-nose could one day be used in greenhouses to quickly spot harmful bugs, the researchers say. A device like this could also be used to identify fruits that are perfectly ripe and ready to pick and eat, says Natalia Dudareva, a biochemist at Purdue University in West Lafayette, Ind. who studies smells of flowers and plants. Hopefully, scientists believe, the device could bring large benefits to greenhouse managers in the near future.