The whole class applauded wildly at the end of the speech, ______ greatly encouraged Bob.
A. what B. where C. which D. when
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It’s unwise of you to consider his wild behavior as ______ a kid’s game. It may gradually develop into a bad habit.
A. no less than B. less than
C. more than D. no more than
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The patient in hospital is ready to accept ____ help she can get.
A. wherever B. whatever C. however D. whenever
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—Hi, Nancy ,I didn’t know you had come back. So have you graduated from college?
—Yes .I Biology for four years in Nanjing.
A．have studied
B．had studied
C．studied
D．a(chǎn)m studying
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In China, New Year's Day isn't a big moment______ with the Spring Festival．
A．comparing B．compared
C．to compare D．being compared
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The long lasting cold current has brought ________ winter in my memory to the east coast of the United States.
A. the longer B. the longest
C. a longer D. a long
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The spread of the Ebola virus in Nigeria is believed _______ by August, 2014.
A．to be controlled
B．to have been controlled
C．to control
D．to have controlled
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While astronauts in space get to do many exciting things, they miss out on ordinary things that we all take for granted—being able to walk on firm ground, hanging out with family and digging into a slice of hot steaming pizza. Though not much can be done about the first two things, there may soon be a solution to the third one, thanks to this cool 3-D pizza printer!
About a year ago, NASA offered $125 ,000 to Anjan Contractor, a 3-D technology expert, to build a device (設(shè)備) that would allow astronauts to make pizza on demand. The mechanical engineer promised that his invention would produce pies in large quantities that looked, tasted and even smelled like pizza made in common ovens.
Late last year, the engineer presented a video of his first prototype (原型) that begins by creating a single slice of dough (面團(tuán)) that is cooked and printed at the same time. Then comes the tomato “sauce” — a mix of tomato powder, oil and water and finally, a protein slice that resembles cheese. While the video doesn’t show the baking process, the inventor says that once the pizza is printed, it can be ready to be consumed in 7 seconds.
While the pie in the video looks delicious enough to attract any pizza lover, Anjan Contractor is far from ready for astronauts. That’s because he still has to find a solution to make the food container in the printer last for 30 years. Though that may sound unrealistic, actually it is not.
Anjan Contractor believes that the only way that is possible is that the water is removed from all the ingredients (配料) and then they are reduced to the powder form. This, as you can imagine, will not be so easy. But, while the printer may not be ready for space, it certainly looks ready enough for people on earth. Hopefully, NASA and Contractor will consider selling it to those not fortunate enough to go to Mars!
1.Why does the author mention the things that astronauts in space cannot do?
A. To ask us not to take common things for granted.
B. To show they live a difficult life there.
C. To show their life is boring in space.
D. To introduce the topic of the text.
2.NASA offered $ 125, 000 to Anjan Contractor mainly to _______.
A. create some new type of 3-D printer
B. attract more companies to work for NASA
C. help astronauts in space enjoy fresh pizza one day
D. produce pizza in large quantities to earn great profits
3.The biggest challenge that Anjan Contractor is faced with now is probably that _______.
A. he has no money left to go on with his research
B. the pizza doesn’t seem appetizing to pizza lovers
C. he has no way to make pizza that can last for thirty years
D. he cannot make the food container last for decades
4.What’s the best title of the passage?
A. NASA is trying its best to help astronauts eat better
B. Astronauts may soon be able to enjoy steaming hot pizza
C. NASA is working on making pizza for common people
D. A 3-D pizza printer has been used to make pizza
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—Good news ! There's a supermarket in this area next month!
—Cool! It will be convenient for us when it's open
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