3. What would be the best title for the text?

A. The Making of Helios

B. 1999 American Tour de Sol

C. Sun-powered Cars on the Road

D. Use of Green Cars in Connecticut

2. How many sun-powered cars took part in the race?

A. 1. 　 B. 4　　 　C. 23. 　　D. 44.

1. What is special about the car Helios in the text?

A. It was built by middle school students.

B. It has an attractive design.

C. It was made in 1971.

D. It won the fourth prize.

3.We can infer from the last sentence that scientists________.

A.have changed the landing points many times

B.hope to land the robots on the surface of water

C.are still working on the plan

D.know where they can find water

4

It’s not the flashiest car in the world. Not even close. But the 1971 Volkswagen named Helios can do something most cars can’t：run on solar energy－energy from the sun’s light and heat!

　Joshua Bechtold, 14, and the other students at the Riverside School in Lyndonville, Vermont, worked many months to get Helios ready for the 1999 American Tour de Sol(“Sol”is the Latin word for“sun”). They named their car after Helios, the sun god in Greek mythology(神话).

　　The 4-year-old Tour de Sol encourages the use of “green”, or environmentally friendly, cars to help reduce pollution and save energy. It’s not a race. Cars are judged on fuel efficiency(耗油量) rather than speed. In the week-long event, 44 cars took the 350-mile tour from Waterbury, Connecticut, to Lake George, New York. Of the 23 student cars, Helios was the only one built by middle school students.

　A teacher drove Helios, but the children talked with people wherever they stopped along the road. “That was my favorite part. ”says Anna Browne, 15. “We explained how the car runs. ”

　　Due in part to old, inefficient batteries(电池), Helios finished fourth－out of four-in its kind, the sun-powered class. “We were there for the fun of it. ”Anna says. “We’re proud of Helios, ” says Ariel Gleicher, 14. “It’s a car that’s good for the environment. ”

69.One of the important jobs for the robots on Mars is to________.

A.study the soil

B.walk everywhere

C.test the new camera

D.find a suitable landing point

2.How long in between will the two robots be sent to Mars?

A.1 year.　 B.7.5 months.　 C.2 months.　　 D.2 weeks.

1.According to the news report,scientists plan to send robots up to Mars to_______.

A.find out whether there is water on Mars

B.see if robots can find minerals there

C.test how fast robots can drive there

D.prove that robots can work on Mars

4.What can be inferred from the passage?

A.The polluting industries are not allowed to sell their products.

B.Present technologies have settled the harmful waste problem.

C.Everyone should obey the government rules for the problem.

D.To solve the problem requires the efforts of the whole society.

3

　　Houston,Texas(June 8,2002)－In 2004,the National Aeronautics and Space Administration(NASA)will send two robots(机器人)to separate places of Mars to seek out past or present signs of water.It is an exciting idea to send two robots driving over very different places of Mars at the same time,to be able to see what is on the other side of the hill.

　Last month,NASA announced it was sending one robot to Mars,but after two weeks,it　decided there was enough money for two.The robots will be sent up within two weeks of each other in May and June of 2003 from Kennedy Space Center.If all goes well,the two spacecraft(宇宙飞船)will touch down on Mars,after a seven-and-a-half-month space flight,on January 2 and 20,2004.

　The robots,each weighing 150 kilograms,can cover 100 meters per day.They are designed to be able to examine the mineral content of the soil,and their special camera will take pictures of the lands and hills.Although they will be under control from Earth,the robots are able to move more freely compared to those sent up before them.

　The actual landing points have not been determined yet,but the scientists say it will be in areas where they hope to find water.

3.What troubles industries most in dealing with the dangerous waste problem?

A.How to get government support.

B.How to increase their production.

C.How to store harmful waste.

D.How to cut down the related costs.

2.According to the text,people______.

A.do not produce harmful waste in their daily life

B.do not know where to place the dangerous waste

C.are not clear about how serious the dangerous waste problem is

D.are not sure about where harmful waste ends