2019年成人高考高起点《英语》模拟试题及答案（11）_第4页

 　　Passage Three

　　One of the greatest mysteries in biology---how the monarch butterfly (帝王蝶) travels thousands of kilometers on its yearly migration ---has just been solved.

　　Monarch butterflies use the sun to set their body clocks and make their journeys, according to US scientists. 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.

　　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 die 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 Mexico that their great-great-grandparents used the winter before. Past studies have shown that the insects use the sun as a compass 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 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.

　　Scientist 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.”

　　46. This passage is mainly about .

　　A. the importance of migration for monarch butterflies

　　B. the guidance of the sun in monarch butterflies’ navigation

　　C. how long monarch butterflies can travel to spend the winter

　　D. how monarch butterflies use their body clock as part of their sun compass

　　47. Which of the following statements is TRUE about monarch butterflies?

　　A. Their color is orange and black.

　　B. In spring they fly south to Mexico.

　　C. Only a few of them can finish the round trip.

　　D. Each autumn they fly north to North America.

　　48. The most surprising finding about the butterflies is that _____.

　　A. they use the sun as a compass

　　B. not one butterfly finishes the whole-round trip

　　C, it takes as long as two months for the butterflies to fly to Mexico

　　D, they can find the same tree in Mexico that their ancestors used the winter before

　　49. What can we learn from the passage about past studies and the new discovery?

　　A. The new discovery throws light on an old mystery.

　　B. The new study discovers the use of the sun as a compass.

　　C. Past studies discovered the new function of a body clock.

　　D. Past studies showed how the butterflies could change direction.

　　50. What was found about monarch butterflies in the laboratory?

　　A. They lost their sense of time easily.

　　B. The sun was not important in their migration.

　　C. Their body clocks were interrupted by the sun.

　　D. Those flying in 24-hour light lost their sense of time.

　　Section Two: Read the following passage and choose the most suitable sentence from A-G for each blank. There are two extra sentences which you do not need.

　　Passage Four

　　A. There are textbooks, notebooks and test papers.

　　B. Instead, they use palm-sized, or specially designed computers.

　　C. They can look up information on any subject they’re studying from math to social science.

　　D. No notebooks, no textbooks, no test papers.

　　E. But, with all this technology, there will be no risk that the machines will break down.

　　F. As a result, with all this technology, there will be no risk that the machines will break down.

　　G. The teacher records the grades on the network for everyone to see and then copies them into his or her own electronic grade book.

　　Imagine a classroom missing the one thing that’s long been considered a necessary part to reading and writing: paper. 51 And there are no pencils or pens, which, after all, always seem to run out of ink at the critical moment.A “paperless classroom” is what more and more schools are trying to achieve. Students don’t do any handwriting in this class. 52 The teacher downloads texts from Internet libraries and sends them to every student’s personal computer.Having computers also means that students can search the Web. 53And exams can go online too. At a high school in Tennessee, students take tests on their owncomputers. 54A paperless classroom is a big step towards reducing the waste of paper. Stephanie Sorrell, a school teacher in Kentucky, said she used to give about 900 pieces of paper each week to the students. “Think about the money and trees we could save with the computers,” she said.55 So, in case of a power failure or technical problems, paper textbooks are still widely available for these hi-tech students.

　　第II卷

　　注意事项：

　　1.用黑色墨水的钢笔或签字笔将答案写在答题卡上。

　　2.本卷共11小题，共55分。

　　Part IV. English-Chinese Translation (15 points)

　　Directions: Read the following passage and then translate the five underlined sentences into Chinese.

　　A superstar usually is someone who has become famous in sports, or popular music, someone like the singer Michael Jackson.

　　One of the famous sports superstars in the United States was boxer Muhammad Ali. (56)As a young man, Ali won a gold medal in the Olympics a boxer. Then he became the heavyweight-boxing champion of the world. (57)Before long, he was known as one of the greatest boxers in sports history. Once Ali said when he was a champion he was more famous than the president of the United States or the head of any other country in the world.

　　(58)The word “super” means extremely good, and of course, a star is a person who is famous and successful. So people use “superstar” to describe the top people in sports, films and music. (59)But like the stars in the sky, a superstar disappears as time goes by. Many people, for example, know little about Ali or Jackson these days. (60)Superstars are loved by millions of people today, but often forgotten tomorrow.

　　Part V. Chinese-English Translation (15 points)

　　Directions: Translate the following sentences into English with the help of the English word or phrases provided.

　　61. 一楼电子阅览室向全校师生开放。(available)

　　62. 学生既要努力学习，又要追求自己的兴趣。(as well as)

　　63. 如果出现什么问题，你可以拨打我们的免费热线。(go wrong)

　　64. 有些人认为考试分数不该是学生学习成绩的唯一标准。(criterion)

　　62. 近年来，一些城市地铁的运营使人们出行更加便利了。(enable…to)