题目内容
.
For more than twenty years scientists have been searching for signs of life on other planets. Most of these searches have been done over the radio. The hope is that someone in outer space may be trying to get in touch with us. Scientists also have sent radio and television messages on spaceships travelling through space, on the chance that someone may be receptive to such message.
Scientists are using powerful radio telescopes to listen to signals from about 1,000 stars, all within 100 light years of Earth. In addition, they will scan the entire sky to "listen" for radio messages from more distant stars. Using a computer, they will be able to monitor more than eight channels at one time. Scientists are looking for any signal that stands out from the background noise.
Of the 200 billion stars in the Milky Way galaxy, scientists find that five percent are like our sun. Perhaps half of them have a planet like Earth. Such a planet would be a reasonable distance from the star for temperatures to be right for the evolution (进化) of life. Based on the inhabitable (可居住的) planets in our galaxy, most scientists agree that chances are likely that one or more of these planets support some life.
However, many scientists wonder whether intelligent life exists on other planets. Some believe that twenty years of searching without any intelligible messages shows that no one is out there. They say that the evolution of intelligence comparable to ours is unlikely.
Other scientists believe that our search hasn’t been long enough to rule out the possibility that intelligent life exists in our galaxy. Although our sun family is only about five billion years old, our galaxy is about 20 billion years old. In that time, some scientists think it is likely that civilization much more advanced than ours have developed. Perhaps these civilizations send us no signals; perhaps we have not recognized the signals they have sent us. If we hope to find intelligent life, these scientists believe that we have to keep looking.
57. According to the passage, how many planets in our galaxy might be inhabitable?
A. 5 billion B. 10 billion C. 15 billion D. 200 billion
58. The first paragraph in this passage is mainly about __________.
A. how scientists are looking for signs of life on other planets
B. why scientists are looking for signs of life on other planets
C. where scientists are looking for signs of life on other planets
D. When scientists are looking for signs of life on other planets
59. The underlined word “monitor” in Paragraph two means “__________”.
A. find B. follow C. check D. form
60. Which of the following is TRUE based on the information in the passage?
A. The earth is the oldest planet in our galaxy.
B. All scientists believe that there is intelligent life on other planets.
C. Scientists are trying different ways to find signs of life on other planets.
D. Scientists will give up the search for signs of life on other planets.
57—60 AACC
It seems that the Great Wall is the place to rock(摇滚). There will be two parties held on the Great Wall this month.
Great Wall Ⅰ
The latest Great Wall party is sponsored(主办) by the Club and Elektrobeat and held at Jinshanling. Local DJ Mark, as well as guests Slab from Australia, Usami and Bobby from Hong Kong will sing at the party. All drinks are priced at 20 yuan($ 2.4).
Tickets: 200yuan($ 24), including bus ride there and back plus entrance fee to the Great Wall. T/D: 8p.m. to 2 a.m., Sept. 20.
Pre-sale tickets are to be booked at: Public Space: 6416－0759; Neo Lounge: 6416－1077.
Buses: Leave at 5 p.m. on Saturday, Sept. 20 from Neo Lounge, 99 Xinfuncun Zhonglu,
Sanlitun, Chaoyang District.
For more info: www. elektrobeat. com
Great wall Ⅱ
The other party at the end of this month at Jinshanling will be started with live performances by Askar, Brain Failure, Longkuan, Supermarket, Mr. Zhou, Beijing Talking and the Yi band.
Dance till dawn to the wonderful sounds of DJs Ben, Mickey Zhang, Will, Cheese, Gao Hu and Huang Weiwei.
T/D: 8 p.m. to 2 a.m., Sept. 27.
Tickets: 350 yuan ($ 42) or 300 yuan ($ 36) for groups of 10 or more, 500 yuan ($ 60) at the door and VIP tickets 800 yuan ($ 72), transportation included.
Buses: Depart from the north gate of Wbrkers’ Stadium at noon, 2 p.m., 4 p.m., Sept. 27.
For more info: contact Li Zhenhua at lah@msgp. Org or call 133－2119－1731.
【小题1】If you want to book tickets for Great Wall Ⅰ in advance, you can phone _________.
| A．6146－0759 | B．6146－1077 |
| C．6416－0759 | D．133－2119－1731 |
| A．Saturday. | B．Sunday. | C．Weekday. | D．It can’t be known. |
| A．$ 504 | B．$ 432 | C．$ 720 | D．$ 864 |
The Centers for Disease Control and Prevention (CDC) recently announced trends in fruit and vegetable consumption(食用) among adults. Since 2000, the CDC has made efforts with goals of getting 75% of Americans to eat two or more servings of fruit a day and 50% of Americans to eat three or more servings of vegetables a day. Unfortunately, Americans aren’t meeting these modest targets.
Although a diet high in fruit and vegetables can reduce the risk of many diseases, Americans just aren’t getting enough. In fact, since 2000, the amount of vegetables Americans are eating has stayed the same and the amount of fruit Americans are eating has gone down. The CDC also finds that only about a third of adults are eating their expected servings of fruit, and just over a quarter of adults are eating their expected servings of vegetables.
So why aren’t Americans getting their expected servings of fruit and vegetables? It turns out that Americans might be spoiled when it comes to their produce. A national survey conducted by Fruit2day reveals that nearly half of Americans leave fruit in their fridges until it rots with people in Boston among the worst and those in New York and Los Angeles among the best. Sadly, most Americans admit to leaving fruit in the fridge for more than a week.
There are many reasons why Americans don’t eat their fruit or vegetables, including the inconvenience of having to wash or peel it. Fruit2day offers consumers a surprising and convenient way to enjoy the goodness of fruit.
“With no added sugar, natural juices and two full servings of fruit, our Fruit2day line has really captured the imaginations of health-conscious consumers who are actively looking to get more fruit in their diets,” said Hanno Holm, president and chief executive officer of Hero-White Wave. “Fruit2day makes getting more fruit in one’s diet easier for any daily snack routine.”
【小题1】For 4 million American adults, how many of them are eating two or more servings of fruit a day?
| A．About 1.3 million. | B．About 2 million. | C．About 3 million. | D．About 1 million. |
| A．Americans have been eating fewer vegetables since 2000. |
| B．most Americans eat less fruit to reduce the risk of diseases. |
| C．most Americans prefer fruit to vegetables. |
| D．over 25% of adults are eating three or more daily servings of vegetables. |
| A．In Boston. | B．In New York. | C．In Los Angeles. | D．Not mentioned. |
| A．easily get rid of their bad eating habits |
| B．conveniently have more fruit in their diets |
| C．add sugar and natural juices to their diets |
| D．find another excuse for not eating healthily |
| A．they are relatively forgetful |
| B．they are too busy with their work |
| C．they don’t think it convenient to eat them |
| D．they prefer daily snacks with added sugar |
D
Parties, iPods, concerts, movies, TV shows, video games, traffic. All of these things of the modern world make life entertaining and enjoyable. But our 21st-century lifestyle is also loud and, if we don’t take notice, it can have an effect on our hearing.
Most teenagers don’t think about hearing loss. But if you experience any of the following symptoms（症状）, you may already be hearing damaged: you make efforts to hear normal talk, you have to turn up the TV or radio so high that others complain, you watch other people’s expressions to understand what they are saying, you ask people to repeat themselves, you misunderstand what people are saying or you hear ringing in your ears.
iPods and other MP3 players are as common as the clothes you wear, and just as fashionable. But if you turn up an iPod to more than 60 percent of its maximum volume（最大音量）, and listen to music for more than an hour, you are asking for trouble. And, it does not matter if the music you play is classical, rock or heavy metal.
Some researchers find that young people who break the so-called 60-percent/60-minute rule in listening to iPods are at the risk of suffering hearing loss.
Why is an iPod dangerous? With ear buds placed directly in the ear canal and high-volume music played over a long period of time, it’s like working in a loud factory all day, being a maintenance（修理）person under a jet airplane or using a jackhammer（手提钻）on a building site.
Similarly, iPod music can cause a short time or permanent（永久的）hearing damage. A loud iPod can cause a ruptured（破裂的）eardrum and, over time, may cause permanent damage to the tiny hairs in the inner ear. If these tiny hairs are damaged, they cannot effectively send sounds to the auditory nerves（听觉神经）that connect to the brain. If this happens, hearing loss becomes permanent.
【小题1】Which of the following shows that you are suffering hearing loss?
| A．You are interested to listen to others’ talking. |
| B．You have to read others’ expressions to understand them. |
| C．You can only understand others over the phone. |
| D．You always think you hear the ringing of the phone. |
| A．Listen at least an hour every time. |
| B．Turn up the volume to the highest level. |
| C．keep the sound lower than 60% of its highest volume. |
| D．Choose classical, rock or heavy metal music. |
a. The eardrum is broken.
b. The auditory nerves cannot receive sounds.
c. Tiny hairs are damaged.
d. Ear buds are placed directly in the ear canal.
e. High-volume music is played over a long time.
| A．d-a-c-b-e | B．e-c-a-b-d | C．b-c-a-d-e | D．d-e-a-c-b |
| A．music that teenagers like | B．hearing problems caused by the loud world |
| C．ways that teenagers enjoy music | D．dangerous modern lifestyles of teenagers. |