全新版 大学英语 快速阅读第一册 Unit8素文整理Word格式.docx

1、快速阅读自查表阅读和练习应完成的时间：5分22秒实际完成时间：做对的练习题数记录： One of the greatest mysteries in biology-how the monarch butterfly （帝王蝶） travels thousands of kilometers on its yearly migration （迁移）-has just been solved. Monarch butterflies use the sun to set their body clocks and make their journeys, according to US scie

2、ntists. No other butterfly in the world migrates like the orange and black monarchs of North America. They cannot live for long periods in cold weather. Each autumn, thousands travel up to 3,000 km to spend the winter in the mountains of Mexico. There are so many, they almost block out the sky, and

3、you can hear their wings beating. It usually takes the butterflies two months to reach Mexico. After staying five months, they head back up north in the spring. But not one butterfly finishes the whole round-trip. They lay eggs along the way and die. Three generations of butterflies will live and di

4、e during the spring journey alone. The fourth and final generation of the year is born in early autumn and will reach the north. But it hardly gets to rest before starting the long journey south to Mexico. The most amazing thing about these butterflies is that they return to the very same tree in Me

5、xico that their great-great-grandparents used the winter before. Past studies have shown that the insects use the sun as a compass （指南针） to show them the way. But experts are unsure how the butterflies change their direction as the sun moves in the sky. This new study now shows that the insects use

6、a “circadian （生理节奏的）” clock in their bodies as part of their sun compass. In laboratory tests, monarch butterflies were found to fly in the right direction under normal daylight hours. But those flying in 24-hour light headed straight towards the sun. That is, they no longer had any sense of time. S

7、cientist Steven Reppert, who led the research, said: “ We have shown the need for the circadian clock for monarch butterfly migration. When the clock is interrupted, monarchs are unable to fly towards Mexico.”（Words: 334）1. What is the focus of the passage?A） Monarch butterflies yearly migration.B）

8、The unique living style of monarch butterflies.C） The guidance of the sun in monarch butterflies navigation.D） Monarch butterflies use body clocks as part of their sun compass.2. Which of the following statements is true about monarch butterflies?A） Each autumn they fly north to North America. B） In

9、 spring they fly south to Mexico.C） Only a few of them can finish the round trip.D） Their color is orange and black.3. The most surprising finding about the butterflies is that _.A） not one butterfly finishes the whole-round tripB） they can find the same tree in Mexico that their great-great-grandpa

10、rents used the winter beforeC） it takes as long as two months for the butterflies to fly to MexicoD） they use the sun as a compass4. What can be learned from the passage about past studies and the new discovery?A） Past studies discovered the new function of a body clock.B） The new study discovers th

11、e use of the sun as a compass.C） The new discovery throws light on an old mystery.D） Past studies showed how the butterflies could change direction.5. What was found in the laboratory?A） Monarch butterflies lost their sense of time.B） The sun was not important in their migration.C） Butterflies flyin

12、g in 24-hour light lost their sense of time. D） Their body clocks were interrupted by the sun.Passage 25分45秒 At present, there are many ways to travel, that is, we can choose different ways to go to some place. In China, more and more people have their own cars. Therefore, the roads are getting busi

13、er and busier and sometimes there are many traffic jams, especially in the big cities. How can we solve this problem? On the earth the population is growing larger and larger and there will be less and less space. So some scientists are trying to make a new kind of car-a flying car. A flying car is

14、a car that not only runs on the road, but also flies in the sky whenever there is heavy traffic. It is just like a bat （蝙蝠）, as it has wings. When the car runs on the ground, the wings are folded. However, when it flies, the wings are unfolded. It can fly at the height of 1,500-3,000 meters, and it

15、can fly at the speed of 600 kilometers per hour. There will be another kind of train in the future. Maybe it will be called the “flying train”- it looks like a plane, but it has no wings. It can run near the ground but it doesnt touch the ground. It will be much faster than any train currently available. A Japanese scientist says this kind of flying train can be made by the year 2020. So, perhaps it is possible that cars and trains can fly in the sky in the future. Actually