Is there intelligent (有智力的) life on other planets? For years, scientists said “no.” or “we don’t know.” But today this is changing. Seth Shostak and Alexandra Barnett are astronomers(天文学家). They believe intelligent life exists (存在) somewhere in the universe. They also think we sill soon contact these beings(人；生物).
Why do Shostak and Barnett think intelligent life exists on other planets? The first reason is time. Scientists believe the universe is about 12 billion years old. “This is long enough for other planets to have intelligent life,” say Shostak and Barnett. The second reason is size—the universe is huge. “Tools like the Hubble Telescope(哈勃望远镜) have shown that there are at least 100 billion galaxies,” says Shostak. “And our galaxy, the Milky Way, has at least 100 billion stars. Some planets going around these stars might be similar to Earth.”
In the past, it was hard to look for signs of intelligent life in the universe. But now, powerful telescopes(高倍望远镜) allow scientists to discover smaller planets—the size of Mars or Earth—in other solar systems. These planets might have intelligent life.
Have beings from space already visited Earth? “Probably not,” says Shostak. “It’s a long way away. However, intelligent beings may contact us in other way, such as radio signals(信号). In fact, they may be trying to communicate with us now, but we don’t have the right tools to receive their messages. However, this is changing. By 2025, we could make contact with other life forms in our universe and we might help each other.”Seth Shostak and Alexandra Barnett are _____.
| A．astronomers | B．farmers | C．singers | D．drivers |
What is the best title for Paragraph 2?
| A．The Age and Size of Earth |
| B．Our Galaxy: The Milky Way |
| C．Why Intelligent Life Might Exist |
| D．Earth: The Only Planet with Intelligent Life |
Why was it hard to look for signs of intelligent life in the universe in the past?
| A．There were not any smaller planets. |
| B．There were not any powerful telescopes. |
| C．The astronomers were not interested in them. |
| D．The Milky Way didn’t exist at that time, |
Why haven’t beings from space visited us yet according to Shostak?
| A．They’re afraid of us. |
| B．It’s a long way away. |
| C．They don’t want to see us. |
| D．They don’t know how to use radio signals. |
What does the underlined phrase “life forms” in the last paragraph mean?
| A．Messages | B．Tools | C．Intelligent beings | D．Radio signals |
Wonderful Events
| HORSE RACING ALL YEAR ROUND Races starting at 3 p．m．Every Sunday Racetrack Only 20 Miles Away Lots of Free Parking Space Free Presents No Children Allowed |
100 YEARS OF PICTURES Then & Now （Photo Show） See the Wuhan History From 1910~2010 February 1 — April 30 City Art Museum 750 High Street Tuesday to Sunday 10 a．m．~ 5 p．m． |
| WEEKEND SALES This Saturday 2 ~ 6 p．m． Everything 20~40% Off Visit Us at Black G．Grandview Mall Realize Your Dreams, Save Time and Money Fall in Love with Prices We Offer |
DANCE PARTY Celebrate a Special Date Bringing Your Sweet Heart Sunday Night, Country Club Live Band from 9 p．m．~ 1 a．m． $25 a couple（夫妇）; $15 single person |
People can see the photo show at ．
| A．Grandview Mall | B．City Art Museum |
| C．Racetrack | D．Country Club |
Who can NOT go to the horse race?
| A．A single person． | B．A couple． |
| C．Children． | D．The sweet heart． |
What can you do if you only have time between 5 p．m．and 6 p．m．on Saturday?
| A．Go shopping． |
| B．Go to see the photo show． |
| C．Go to the dance with your sweet heart． |
| D．Go to watch the horse race． |
How much will Mr. and Mrs. Smith pay if they want to go to the dance party?
| A．15 dollars． | B．25 dollars． |
| C．20%~40% off． | D．For free． |
Where can you see the above advertisements?
| A．In a book． | B．In a magazine． |
| C．In a newspaper． | D．On TV． |
At the moment, it may be difficult to imagine, but many people believe that, by the year 2100, we will live on the planet Mars．Our own planet, Earth, is becoming more and more crowded and polluted．Luckily, we can start again and build a better world on Mars．
First of all, transport should be much better．At present, our spaceships are too slow to carry large numbers of people to Mars—it takes months．However, by 2100, spaceship can travel at half the speed of light．It might take us two or three days to get to Mars! Secondly, humans need food, water and air to live．Scientists should be able to develop plants that can be grown on Mars．These plants will produce the food and air that we need．However, can these plants produce water for us? There is no answer now.
There is a problem for us to live on Mars．Mars suck（吸力） us much less than the Earth does．This will be dangerous because we could easily jump too high and fly slowly away into space．To prevent this, humans on Mars have to wear special shoes to make themselves heavier.
Life on Mars will be better than that on Earth in many ways．People will have more space．Living in a large building with only 10 bedrooms is highly possible．Many people believe that robots will do most of our work, so we have more time for our hobbies.
There will probably be no school on Mars．Every student will have a computer at home which is connected to the internet．They can study, do their homework and take exams in online schools．Each student will also have their own online teacher called “e-teacher”.
However, in some ways, life on Mars may not be better than that on the earth today．Food will not be the same—meals will probably be in the form of pills and will not be as delicious as they are today．Also, space travel will make many people feel ill．The spaceship will travel fast, so the journey to Mars will probably be very uncomfortable.
根据短文内容完成句子填空（每空限填一个单词）。
In the first paragraph, we can know _____ and ______people will live on the planet of Mars.根据短文内容完成句子填空（每空限填一个单词）。
In order to live on Mars, people need faster _________, _________ that can produce food or
air for people, and special shoes．根据短文内容回答问题。
Write down an example that is given in the passage about the disadvantages living on Mars．
_______________________________________________________________________________把短文中画线的句子译成汉语。
_______________________________________________________________________________根据短文内容用一个完整的英文句子（限10个词以内）回答问题。
What’s the passage mainly about?
_______________________________________________________________________________
Imagine the situation．You are driving along a desert or on a mountain．You have no idea where you are．You passed the last house two hours ago．Then your car breaks down．It is night and it is cold．You have no mobile phone．What do you do? Well, next time take a GPS with you．This invention may be able to help you．It is a device which uses satellites to find the user’s position．It can find your position to within 20 metres．A GPS cannot start your car, but at least you will know where you are．
GPS, which means Global Positioning System, is a small radio receiver．It looks like a mobile phone．You can hold it in your hand, or put in your pocket．It is sometimes put into a watch or a telephone．We also find GPS devices in cars, planes, or boats．Some of these devices have electronic maps, so you know where you are．For example, in a city they can tell you the name of the street.
There are three parts to the Global Positioning System．The first part is the receiver．You can hold it in your hand, or have it fixed into your car, plane, etc．The second part is a group of satellites orbiting the Earth．The receiver contacts at least four of the satellites and calculates （计算） its position．The third part of the system is a network of ground stations．They are all over the world．They control the satellites and make sure they are working well.
Some people think that in the future the GPS will be as common as the mobile．They are becoming cheaper and more and more accurate （精确的）．There are also new uses for the GPS．Perhaps they will become like watches. Everyone will have one and you will never be lost again. 
According to the passage, with the help of the GPS, people ______.
| A．can’t be lost in a new city |
| B．can’t find their way in different countries |
| C．can learn about the culture of an unknown place |
| D．can spend the least time getting to another place |
We can learn from the passage that ______.
| A．there are three parts to the GPS |
| B．a GPS can’t be put into a watch |
| C．a GPS can help you start your car |
| D．the GPS are becoming more and more expensive |
The underlined word “They” in paragraph 3 means “______”.
| A．Receivers | B．GPS devices |
| C．Satellites | D．Ground stations |
The passage is mainly about ______.
| A．the history of the GPS |
| B．the introduction of the GPS |
| C．the shape of the GPS |
| D．the three parts of the GPS |
What can we infer（推断） from the passage? ______
| A．All GPS devices have electronic maps． |
| B．People in many countries will use the GPS for free. |
| C．The receiver of the GPS contacts at least five of the satellites. |
| D．The GPS will become more and more common in everyday life. |
What are you going to do if you are in a burning house? How will you escape? Do you know how to save yourself? Please read the following passage.
Escaping a fire is a serious matter．Knowing what to do during a fire can save yourself．It is important to know the ways you can use and to show them to everyone in the family, such as stairways （楼梯） and fire escapes, but not lifts．
From the lower floors of the building, escaping through windows is possible, learn the best way of leaving through windows with the least chance of serious injury （伤害）.
The second floor windows are usually not very high from the ground．An average （普通的） person, hanging by the finger-tips will have a drop of about six feet to the ground．It is about the height of an average man．Of course, it is safer to jump a short way than to stay in a burning building.
Windows are also useful when you are waiting for help．Be sure to keep the door closed, or smoke and fire may be drawn into the room．Keep your head low at the window to be sure you get fresh air rather than smoke that may have leaked （渗入） into the room.
On a second or third floor, the best windows for escaping are those which open onto a roof．From the roof a person can drop to the ground more safely, dropping onto stones might end in injury, bushes and grass can help to break a fall.
From the beginning, we know that it is important to______.
| A．know the way to escape a fire |
| B．put out a fire in a burning house |
| C．jump out of a burning house |
| D．keep the door closed |
It is possible to escape through the windows ______.
| A．if there are some stones on the ground |
| B．if there is some grass on the ground |
| C．if you live on a higher floor |
| D．if you have a short enough rope |
Which of the following is RIGHT according to the information in the passage? ______
| A．You can escape through lifts. |
| B．You can choose fire escapes. |
| C．You can’t escape through stairways. |
| D．Keep your head high at the window to be sure you get fresh air. |
Keep the door closed so that ______ if the building is on fire.
| A．smoke and fire can’t be drawn into the room |
| B．you can call for help |
| C．you can get fresh air |
| D．you can be sent first |
The best title for the passage is ______.
| A．Escaping through the windows |
| B．Saving yourself from a burning house |
| C．Knowing on fire |
| D．Waiting for help |
| LOST A white cat with two big blue eyes. If you find it, please call Sam. Tel:385-0926． Many thanks. |
Titanic 3D Saturday and Sunday Showtime Cinema $20 （ half for children under 12 ） Tel: 332-5147. |
| BOOK SALE A Christmas Carol —by Charles Diukans A story of Christmas The true meaning of Christmas Was $59.60 Now $29.60 |
HOUSE FOR RENT 2 sunny bedrooms with a kitchen. $500 a month Call Mary for more information． Tel:591-3127 |
Who lost a white cat with two big blue eyes? ______.
| A．Sam | B．David | C．Mary | D．Charles |
You need to pay______ if you buy the book A Christmas Carol now .
| A．$59.60 | B．$49.60 | C．$39.60 | D．$29.60 |
On what day can we see Titanic 3D in the Showtime Cinema? ______.
| A．Every day |
| B．Friday and Saturday |
| C．Saturday and Sunday |
| D．Thursday and Sunday |
If you want to rent a house, you can call ______.
| A．385-0926 | B．591-3127 |
| C．332-5147 | D．592-5147 |
Those ads above are most probably from a ______.
| A．map | B．dictionary |
| C．newspaper | D．guidebook |
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