《2025年走进重高培优讲义九年级英语全一册人教版浙江专版》

B
【广元】A small cloud moves slowly through the air in a hospital operating room(手术室). In the room a patient with cancer(癌症), lies on a table. The cloud is all around the patient, covering her body and filling her lungs(肺). The cloud is not smoke. It is made of millions of nano-robots (纳米机器人). These tiny robots move from cell(细胞) to cell in the patient's body, killing the cancer.
Fighting cancer with nano-robots is only an idea today, but scientists say that it could be possible in the future. Using nano-robots for good purposes such as fighting the illness or repairing the environment may be the way to many problems today.
However, nano-robots could be a dangerous risk as well. Because nano-robots are so tiny, they will have to work in large teams of many thousands to many millions. For this reason, nano-robots will have to be programmed(被编程) to build themselves. Scientists will not have the ability to build millions of nano-robots one by one.
This ability to re-produce is making some scientists worried. What will happen if something goes wrong in the programming? Quite a lot of crazy nano-robots would be far worse than any illness. Some people think that if they get out of control, nano-robots could make the earth gone.
What should be done? Should we continue researching nano-robots or should we search for other methods? This is one of the many difficult decisions that we have to make in the future.
( )6. What is the cloud in the passage?
A. Smoke in the air. B. Millions of nano-robots.
C. Something full of drops of water. D. Clothes to cover a patient.
( )7. What does the underlined word "it" in Paragraph 2 refer to?
A. Fighting cancer with nano-robots. B. Moving from cell to cell.
C. Killing the cancer. D. Repairing the environment.
( )8. Which of the following is NOT the reason why some scientists are worried about using nano-robots?
A. Nano-robots have the ability to build themselves.
B. Something may go wrong in the programming.
C. Scientists have to build millions of nano-robots one by one.
D. Nano-robots in large teams may be out of control.
( )9. What does the writer think of using nano-robots in the future?
A. He agrees to the idea. B. He disagrees to the idea.
C. He doesn't talk about his own opinion. D. He is crazy about it.
( )10. Which is the best title for the passage?
A. Future Robots B. The Ways to Fight Cancer
C. Nano-robots in Use D. A Cloud of Hope and Danger

答案： 6.B 7.A 8.C 9.C 10.D