题目内容

Astronaut Jim Voss has enjoyed many memorable moments in his career,including three space flights and one space walk. But he recalls with special fondness a decidedly earthbound(为地球引力所束缚的)experience in the summer of 1980 when he participated in the NASA ASEE Summer Faculty Fellowship Program. Voss, then a science teacher at West Poin,was assigned to the Marshall Space Flight Center's propulsion(推进) lab in Alabama to analyze why a hydraulic fuel pump seal (液压燃料泵的密封圈)on the space shuttle(航天飞机) was working so well when previous seals had failed. It was a seemingly tiny problem among the vast complexities of running the space program. Yet it was important to NASA because any crack in the seal could have led to destructive results for the astronauts who relied on them.

“I worked a bit with NASA engineers,” says Voss, “but I did it mostly by an analysis. I used a handheld calculator, not a computer, to do a thermodynamic(热力学的) analysis.” At the end of the summer,he,like the other NASA ASEE fellows working at Marshall,summarized his findings in a formal presentation and detailed paper. It was a valuable moment for Voss because the ASEE program gave him added understanding of  NASA,deepened his desire to fly in space,and intensified his application for astronaut status.

  It was not an easy process. Voss was actually passed over when he first applied for the astronaut program in 1978. Over the next nine years he reapplied repeatedly,and was finally accepted in 1987. Since then he has participated in three space missions. The 50 year old Army officer,who lives in Houston,is now in training for a four-month mission as a crew member on the International Space Station starting in July 2000.

 Voss says the ASEE program is wonderful for all involved. “It brings in people from the academic world and gives NASA a special property for a particular period of time. It brings some fresh eyes and fresh ideas to NASA,and establishes a link with our colleges and universities,” Voss explains. “There's an exchange of information and an exchange of perspectives that is very important.”

For the academic side,Voss says,the ASEE program also “brings institutions of higher learning more insight into new technology. We give them an opportunity to work on real world problems and take it back to the classroom.”

66. Why was the hydraulic fuel pump seal important for the space shuttle?

A) Because previous seals all failed.

B) Because it was very complex in running the space program.

C) Because great care has to be taken of the hydraulic fuel pump sealing.

D) Because any crack in the seals would cause disastrous results for the astronauts.

67.The great significance of Voss's findings lies in_________ .

A) strengthening his determination to join in space flights

B) furthering his understanding of NASA

C) consolidating his astronaut status in NASA programs

D) Both A and B

68. How many flights will Voss have finished if his four-month mission starting in July 2000 ends up successfully?

A) Three  B) Two   C) Four     D) Five

69. Which of the following is NOT TRUE according to what Voss said on the ASEE program?

A) Fresh members from the academic world participate in the program.

B) The program brings new outlooks to NASA space programs.

C) It is important for the space scientists to exchange information and perspectives.

D) American colleges and universities are a special property of NASA.

70. What does Voss want to stress in the last paragraph?

A) The technological significance of the program.

B) The educational significance of the program.

C) The philosophical significance of the program.

D) The historical significance of the program.

【小题1】D

【小题2】D

【小题3】C

【小题4】D

【小题5】B

练习册系列答案
相关题目

Brenda Bongos was a happy, artistic girl. She had one big ambition—to play the drums in a band. But one big obstacle lay in her way. To be good enough to play in a band, Brenda had to practice a lot, but she lived next-door to a lot of old people. Many of them are sick. She knew that the sound of beating drums would really get on their nerves. So, she had tried playing in the strangest places: a basement, a kitchen, and even in a shower. But there was always someone it would annoy.
One day, while watching a science documentary on TV, she heard that sound cannot travel in space, because there's no air. At that moment, Brenda Bongos decided to become a sort of musical astronaut.
With the help of a lot of time, books and work, Brenda built a space bubble. This was a big glass ball connected to a machine which sucked out all the air inside. All that would be left inside was a drum kit(成套设备) and a chair. Brenda got into the space suit she had made, entered the bubble, turned on the machine, and played those drums like a wild child.
It wasn't long before Brenda Bongos came very famous. Many people came to see her play in her space bubble. Shortly afterwards she came out of the bubble and started giving concerts. Her fame spread so much that the government suggested that she be part of a unique space journey. Finally, Brenda was a real musical astronaut, and had gone far beyond her first ambition of playing drums in a band.
Years later, when asked how she had achieved all this, she thought for a moment, and said: ''If those old people next – door hadn't mattered so much to me, I wouldn't have found a solution, and none of this would have ever happened.''
【小题1】Why did Brenda try to play in the strangest places?

A.Because she didn't want others to hear her play.
B.Because she didn't mean to disturb others.
C.Because she didn't have her own room.
D.Because she didn’t like her neighbors.
【小题2】Brenda started to give concerts _______.
A.after she practiced in her space bubble
B.when she became part of the unique space journey
C.after she became a real musicalastronaut
D.when people came to see her in the space bubble
【小题3】Brenda became famous because _______.
A.she was good at music and scienceB.she became a real musical astronaut
C.she invented a special way of practiceD.she played well and had a talent
【小题4】Which of the following can be used to describe Brenda?
A.Kind, hardworking and clever.B.Brave, kind and hardworking.
C.Lovely, brave and kind.D.Nervous, kind and clever.
【小题5】It can be inferred from the text that: " _______".
A.He laughs best who laughs lastB.It's never too old to learn
C.Two heads are better than oneD.One good turn deserves another

阅读下列应用文及相关信息,并按照要求匹配信息。请在答题卡上将对应题号的相应选项字母涂黑。(如果【【答案】】是E请同时涂黑AB, 如果【【答案】】是F请同时涂黑CD),
首先,请阅读下列调查问卷:
A
Dear Sir/Madame
I think robots can do such dangerous jobs as skyscraper builders, bridge builders and so on .If injured or broken, they can be fixed easily. They can also work in unfavorable conditions such as in the dark, extreme heat, extreme  cold, etc.
B
Dear Sir/Madame
I suppose small man—controlled robots could be used as sea rescuing workers to look for people in the sea. When defusing (拆除引信) bombs, robots could also be used to reduce the risk of losing a human life.
C
Dear Sir/Madame
I suppose robots could be used as dustmen during night time, as they don’t need to sleep and they are safe in polluted environment.
D
Dear Sir/Madame
I suppose robots could be used as chemical researchers. At least they can help us keep away from harmful materials or help to go into small areas which are hard to reach for us. It can be used to examine the inside of a nuclear reactor (核反应堆).
E
Dear Sir/Madame
I suppose robots could be astronauts and they could travel very far away,like Pluto.If so,we don’t need to train human beings to be astronauts as it costs quite a lot and it also takes many years to make a professional astronaut.
F
Dear Sir/Madame
I suppose robots could be used as car assembly (装配) workers ,in parts of the production line. Robots can make the process move faster, get more work done and cost less.
请阅读下列答卷人的信息,然后匹配答卷人和他们所提供的调查问卷。
46.Jaime is a professor in the field of biochemistry (生物化学).He is worried about his health situation as he keeps so close to harmful elements year in and year out.
47.Bradley works in the International Security Association.He is sad to think of the fact that there were so many people who couldn’t be saved or found at last in disasters such as in lakes,rivers,seas and so on.
48.Carrie is a young man who has a job in construction company in the city.He is afraid of climbing up laders and carrying the iron bars and other things onto higher places.So he wants to give up the job and find a better one.
49.Josh is a general manager of the National Bluebird Bureau,which is short of excellent astronauts.He has spent lots of his time and money on training them.
50.Alan,who is in his thirties,is a worker in an auto factory.He is thinking of changing his job for shooter which is more interesting and creative.
答卷人在调查问卷中的问答:
46.Jaime                             

A.Skyscraper builders
47.Bradley
B.Sea rescuing workers
48.Carrie
C.Dustmen
49.Josh
D.Chemical researchers
50.Alan                             E.Astronauts
F.Car assembly workers

Next Stop: Planet Mars

Fly me to the moon? That’s not far enough. On September 14, 2011, NASA released designs for a superrocket, the Space Launch System (SLS). This time the final destination will be Mars.

The SLS is a huge, liquid-fuelled rocket. If it is fully developed, it will be the most powerful rocket ever built. Its lift capability will be much bigger than that of the space shuttle of Saturn 5, the rocket that sent the Apollo missions to the moon.

NASA is planning to launch its first unmanned test flight in 2017. It is hoped that the first crew will fly in 2021 and astronauts will make it to a nearby asteroid(小行星) in 2025. NASA hopes to send the rocket and astronauts to Mars from the asteroid by the 2030s, according to the Associated Press (AP).

NASA used liquid rockets to send Apollo, Gemini and Mercury into space, but later changed to solid rockets boosters(助推火箭) because they were cheaper. Tragically, however, a booster flaw(缺陷) caused the space shuttle Challenger to crash in 1986. The new project plans to return to liquid fuel.

According to AP, the rockets will at first be able to carry 77 to 110 tons of payload(净载重量). Eventually they will be able to carry 143 tons into space, maybe even as many as 165 tons, NASA officials said. By comparison, the Saturn 5 booster could lift 130 tons and the space shuttle just 27 tons.

However, unlike reusable shuttles, these powerful rockets are mostly one use only. New ones have to be built for every launch. This will be very costly.

NASA estimates that it will cost about $3 billion (19 billion yuan) per year, or $18 billion until the first test flight in 2017. NASA hopes to make money by allowing private companies to send astronauts to the International Space Station like giant taxi services, so that the program can be “sustainable”.

“This is perhaps the biggest thing for space exploration in decades,” said Senator Bill Nelson, a former astronaut. “The goal is to fly humans safely beyond low-Earth orbit(轨道) and deep into outer space where we cannot only survive, but one day also live.”

1.What is the outstanding feature of the SLS?

A.It’s equipped with an advanced control system.

B.It’s the first unmanned space shuttle in the world.

C.It’s the only vehicle that can fly astronauts to the moon.

D.It can send a lot more goods and passengers into space.

2.What is Saturn 5?

A.An aircraft that had a deadly flaw and crashed in 1986.

B.A series of rockets that once sent astronauts to the moon.

C.An unmanned space shuttle that was once famous in the world.

D.A kind of launch vehicle that will be used to carry astronauts to Mars.

3.NASA plans to use liquid fuel in the new project because ______ than solid rockets boosters.

A.it is less costly

B.it is much safer

C.it can last longer

D.it is more environmentally friendly

4.According to NASA’s schedule, it will take ______ years to fully complete the SLS program.

A.about 6                               B.about 10

C.less than 14                            D.more than 19

5.It can be inferred from the passage that ______.

A.the SLS program is planning to make reusable rockets

B.the goal of the SLS program is to enable humans to live on the moon

C.the US government may not have provided enough money for the SLS program

D.NASA will use SLS as a space taxi between the Earth and Mars

 

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网