( )1. A. in failure ( )2. A. research ( )3. A. made known ( )4. A. cell ( )5. A. save ( )6. A. patients ( )7. A. according to ( )8. A. beat ( )9. A. countries ( )10. A. for ( )11. A. scientists ( )12. A. a baby ( )13. A. lived ( )14. A. questions ( )15. A. egg ( )16. A. Before ( )17. A. grow ( )18. A. And ( )19. A. yet ( )20. A. different | B. never B. report B. made B. person B. kill B. health B. including B. lost B. nations B. against B. president B. a man B. appeared B. affairs B. bless B. After B. die B. But B. still B. usual | C. successfully C. works C. said C. man C. cure C. diseases C. besides C. raised C. peoples C. researching for C. people C. a woman C. turned C. business C. meat C. While C. change C. However C. not C. ordinary | D. not D. task D. had D. clone (克隆人) D. treat D. things D. argued D. missed D. states D. praising D. research D. a white man D. was no more D. problems D. cell D. And D. appear D. Yet D./ D.same |
阅读理解。 | |||
We know that many animals do not stay in one place. Bird, fish and other animals move from one place to another at a certain time. They move for different reasons: most of them move to find food more easily, but others move to get away from places that are too crowded. When cold weather comes, many birds move to warmer places to find food. Some fishes give birth in warm water and move to cold water to feed. The most famous migration (迁移) is probably the migration of the fish, which is called "salmon". This fish is born in fresh water but it travels many miles to salt water. There it spends its life. When it is old, it returns to its birthplace in fresh water. Then it gives birth and dies there. In northern Europe, there is a kind of mouse. They leave their mountain homes when they become too crowded. They move down to the low land. Sometimes they move all the way to the seaside, and many of them are killed when they fall into the sea. Recently, scientists have studied the migration of a kind of lobster (龙虾). Every year, when the season of bad weather arrives, the lobsters get into a long line and start to walk across the floor of the ocean. Nobody knows why they do this, and nobody knows where they go. So, sometimes we know why humans and animals move from one place to another, but at other times we don"t. Maybe living things just like to travel. | |||
1. Most animals move from one place to another at a certain time to _________. | |||
A. give birth B. enjoy warmer weather C. find food more easily D. find beautiful places | |||
2. The fish called "salmon" spends a long life in _________. | |||
A. salt water B. rivers C. fresh water D. its birthplace | |||
3. What is the main idea of the passage? | |||
A. Animals move in order to find food more easily. B. The migration of the fish called "salmon" is the most famous migration. C. Living things move from one place to another because they like to travel. D. sometimes we know why and how living things move from one place to another, but sometimes we don"t. | |||
阅读理解。 | |||
Robots are being used for the first time in hospitals. "Robot-nurses" perform a variety of tasks such as delivering medicine, food and laboratory samples to sickrooms and taking away waste. Patients aren"t treated by robots, as this is still done by medical staff. The idea is to employ robots to transport supplies between departments. "Nurses often have to break off from what they are doing to gather supplies," says Peter Seiff, who makes the robots called TUGs. Research shows any interruption in medical work can lead to errors-a nurse may forget whether she has given medicine and may give a patient double the dose (剂量) or none at all. The robots vary in size according to what job they perform, but normally take the shape of a metal box on wheels, with a box on the side containing their software. After being programmed, the robots are able to find their way around a hospital unassisted. They also contain scanning technology to create electronic pictures or a "memory" of routes on their hard drives to help them go through passages, doors and other obstacles. Each robot is also monitored at the producer"s headquarters (总部) in case it runs into any difficulties. Trials show TUGs reduce the time it takes for a patient to receive medicine, and stop drugs from going missing. A study at the University of Maryland Medical Centre in the U.S. found that when three TUGs were used over the course of a year, the average length of time from the drugstore receiving a prescription to the patient receiving it dropped from 74 minutes to 30 minutes and saved nurses 6,123 hours finding medicines. It also cut the number of medicines that went missing to zero. "The biggest complaints we receive from patients is that the nurses don"t spend enough time with them. Anything that frees nurses is a boon," says Katherine Mulligan, director of nursing at the hospital, "The TUGs allow nurses to spend more time focusing on patient care. Nurse satisfaction has improved." | |||
1. Which of the following activities are robot-nurses NOT programmed to deal with? | |||
A. Transporting supplies. B. Taking away waste. C. Taking care of patients. D. Creating electronic pictures. | |||
2. The underline word "boon" in the last paragraph probably means . | |||
A. benefit B. dream C. habit D. complaint | |||
3. Which of the following is TRUE according to the passage? | |||
A. Robots can help nurses save a lot of time. B. All robots have the same size. C. Robots are unable to find their way by themselves. D. Robots cannot get help if they run into difficulties. | |||
4. What is the attitude of the author towards robot-nurses? | |||
A. Neutral. B. Positive. C. Negative. D. Unknown. | |||
阅读理解。 | |||
You may have heard the popular saying, "there are always more fish in the sea". But as many new studies show, fish populations are changing, and not necessarily for the better. Consider the case of big, predatory (食肉动物) fish. These giants, like sharks and cod (鳕鱼), eat other smaller fish. Big fish are an important part of the marine ecosystem (海洋生态系统) because they keep down the numbers of smaller fish. Without fish that eat other fish, populations of smaller swimmers would increase, eating more plants, and leaving less vegetation for other creatures, including future fish. As fierce as predators can be, they"re no match for fishing technology. Many people love to catch predatory fish like sharks, cod and tuna, and new studies suggest that over-fishing is threatening these creatures near the top of the marine food chain. In one study, Villy Christensen and his colleagues looked at 200 past studies of marine life to learn how fish populations have changed over time. Christensen reported that between 1910 and 1970, the numbers of big predators decreased slowly, and that in 1970 their populations really started to drop. Around that time, fishing ships began using new tools that led to more fish being caught. The numbers have been falling quickly ever since. Reg Watson looked at the problem from the perspective of the fishermen. In the middle of the 20th century, Watson reported, fishing boats didn"t go far from home, and most fish were caught near the shore. That was no longer true by the 1980s. By then, fishing had moved farther from shore, into the open oceans, and was helped by the development of new technologies. But since the 1990s, something has changed. Despite new technologies and more efforts, fishing operations have not continued to develop. Scientists study historical data to understand the present, and this research is needed to forecast the future of fish and fishing. And the forecast doesn"t look good: large predator fish are becoming harder to find, and soon may disappear. | |||
1. From Paragraph 2 we can learn that . | |||
A. more big fish are breeding in the ocean B. the fewer smaller fish, the more big fish C. big fish are less important than smaller fish D. the numbers of smaller fish are controlled by big fish | |||
2. Why did the number of big predators begin to fall quickly in 1970? | |||
A. Fishing ships began using new tools with which they could catch more fish. B. There were fewer smaller fish than before. C. There were more people catching big predators. D. Their environment was being polluted by fishing ships. | |||
3. Which of the following would scientists most probably agree with? | |||
A. It may soon be difficult to find large predator fish. B. It will cost much more in the future to catch big fish. C. Smaller fish still give the fishing industry a bright future. D. It is tough for researchers to forecast the future of fish. | |||
4. What can we conclude from the passage? | |||
A. The decrease of the number of smaller fish has changed the marine food chain. B. Big fish have to live in the deep sea to avoid being caught. C. Over-fishing with new technology accounts for the decrease of the number of big fish. D. The decreasing populations of small fish lead to fewer big fish. |