It looked just like another aircraft from the outside.The pilot told his young passengers that it was built in 1964，a Boeing KC-135 refuelling tanker，based on the 707.But appearances were deceptive，and the 13 students from Europe and USA who boarded the aircraft were in for the flight of their lives.
For 12 months，science students from across the continents had competed to win a place on the flight at the invitation of the European Space Agency.The challenge had been to suggest imaginative experiments to be conducted in weightless conditions.
For the next two hours the Boeings flight resembled that of an enormous bird which had lost its reason，shooting upwards towards the heavens before moving down towards Earth.The intention was to achieve weightlessness for a few seconds.
The aircraft took off smoothly enough，but any feelings that I and the young scientists had that we were on anything like a scheduled passenger service were quickly dismissed when the pilot put the plane into a 45-degree climb which lasted around 20 seconds.Then the engines cut out and we became weightless.Everything became confused，and left or right，up or down no longer had any meaning.After ten seconds of free-fall descent （下降） the pilot pulled aircraft out of its nosedive.The return of gravity was less immediate than its loss，but it was still sudden enough to ensure that some students came down with a bump.
Each time the pilot cut the engines and we became weightless，a new team conducted its experiment.First it was the Dutch，who wanted to discover why cats always land on their feet.Then it was the German team，who conducted a successful experiment on a traditional building method to see if it could be used for building a future space station.The Americans had an idea to create solar sails that could be used by satellites.
After two hours of going up and down in the plane doing experiments，the dominant feeling was one of excitement rather than sickness.Most of the students thought it was an unforgettable experience and one that would be keen to repeat.
（1）What did the pilot do with the plane？ CC
A．He climbed and then made the plane fall slowly.
B．He climbed and then made the plane turn over.
C．He quickly climbed and then stopped the engines.
D．He took off normally and then cut the engines for 20 seconds.
（2）What was the point of being weightless？ DD
A．To show the judges of the competition what they could do.
B．To prepare the young scientists for future work in space.
C．To see what conditions are like in space.
D．To allow the teams to try out their ideas.
（3）The pronoun "it" （in the last paragraph） refers to BB.
A．the excitement
B．the trip
C．the opportunity
D．the plane
（4）The passage is intended to DD.
A．report on a new scientific technique
B．encourage young people to take science
C．show scientists what young people can do
D．describe the outcome of a scientific competition
【答案】C；D；B；D
【解答】
【點(diǎn)評】
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發(fā)布：2024/4/20 14:35:0組卷：8引用：1難度：0.5
相似題
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1．For some people，the warmest memories from childhood come from being read a great story．（1）
It develops children's language skills and increases their ability to succeed in school and，later，work．
A new report by the American Academy of Pediatrics says reading aloud is so important that parents should start as soon as their children are born and continue to read aloud even after their children can read by themselves．They say parents should also point to and talk about pictures in books for infants（嬰幼兒）．（2）
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（5）Of all the six to 17-year-olds in the Scholastic study，more than 90%said their favorite books are the ones they chose for themselves．
A．The Scholastic report also suggests permitting children to choose their own books．
B．Scholastic also identifies some ways to develop a love of reading in a child．
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F．Another way to develop a reading habit in children is to read to them．
G．But reading to children does more than create warm memories．發(fā)布：2025/1/1 13:30:1組卷：13引用：7難度：0.7 -
2．Paying ﹩25，000 to get your pet cloned might sound attractive，if you have the money and can't imagine life without your pet.
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The decision to clone your pet has to take place while they're still alive.You need to sign up with the company and take your pet to the vet so they can harvest some cells.Then，for between ﹩1-2000，the company will store the cells.Even if you decide to stop，there's no refund for the storage.If you decide to have your pet cloned，you'll pay a much larger deposit to perform the cell transfer and implant the cells into a host animal.
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（1）Why did the author mention Dolly the sheep？
A．To ensure the safety of cloning.
B．To show that it is easy to clone sheep.
C．To prove the technology has a long history.
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（2）What can we know about cloning a pet？
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D．The company will refund you if you give up halfway.
（3）What do the companies' words in the last paragraph mean？
A．Cloning is a moral issue.
B．The future of cloning is unclear.
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D．Yon won't get the exact copy of the former one.
（4）Where is the text most likely from？
A．A travel guide.
B．A newspaper.
C．A science fiction.
D．A textbook.發(fā)布：2025/1/1 16:0:1組卷：19引用：4難度：0.5 -
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（1）What's the main idea of the second paragraph？
A．Chinese students ask for sick leave most often.
B．Chinese students drink most alcohol and smoke earliest.
C．Japanese students ask for least sick leave.
D．Chinese teenagers are tallest，but most unhealthy.
（2）It can be inferred from the passage that.
A．Chinese students are confident in themselves and luckier
B．Chinese students are luckiest，yet most unsuccessful
C．Japanese students are most stressed
D．South Korean students sleep the least
（3）What does the underlined word "that" refer to？
A．the height
B．the number
C．the weight
D．the appearance
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A．study and career
B．friendships
C．physical appearance
D．family relationship發(fā)布：2025/1/1 16:0:1組卷：0引用：3難度：0.5
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