阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。
Qian Xuesen, a gifted rocket scientist 1. led China's space and rocketry programs, was born in Shanghai in December 1911. He 2. (admit)into Shanghai Jiao Tong University in 1929. In1934, he won 3. scholarship and in 1935 he left China to study at the Massachusetts Institute of Technology. One year later, he 4. (go)to the California Institute of Technology to start graduate studies under Theodore yon Kármán, a world-famous professor of aerodynamics(空气动力学).
From 1938 to 1955, Qian stayed in America, working with Kármán to research aerodynamics, rocketry and missiles. Despite his high salary and comfortable life in the US, Qian remained 5. (concern)about his home country's development. In October 1955, Qian braved all the difficulties and 6. (final)made his way back to China.
Upon his arrival, Qian Xuesen, together 7. dynamics expert Qian Weichang, established the Institute of Mechanics. Then Qian set out 8. (1ead)China's missile and rocketry programs.
Uninterested in fortune and fame, Qian devoted his life to 9. (rebuild)the nation. ''As a Chinese technician, my life's purpose is to serve the people, '' he said. ''If after I die the public feels I have made a contribution during my life, that 10. (approve)will be the highest praise of all. '' Qian died on Oct. 31, 2009. The Chinese people will never forget his contribution.
A parent’s hopes for 2030
When 2010 arrived, my son was only a year old—tiny and_________, the master of a few basic words, but still mostly the baby we'd welcomed into the world,_______ all his first times.
Now my baby has grown into a(n) _________—tall, strong, stout, and smart, a(n) _________ of Akira Kurosawa samurai movies.
A _________from now, in 2030, he will be an adult. I expect the next 10 years to fly by, and be filled with _________. As 2020 begins. I am thinking about the kind of world my son will_________ and experience. I _________for him, and for all the young people of his age. So I have several _________for the world my son and his generation will live in：
I hope we finally get__________about climate change. Polar ice is melting. The oceans are __________ . The question is __________whether we can stop climate change, but whether we’re willing and able to do anything to __________ it.
I’m not sure what a warming planet will mean for my son's life. I__________ it means he will live in a world where nations and groups __________ limited resources like clean water and food, which means that the danger of climate change won't come just from warmer climate, but from other humans competing for control over what’s __________.
The world is always going to be full of __________about how to solve the challenges we face. I hope, too, that my son’s generation learns to __________justice—but to do so with big heart and humility, recognizing our common humanity(人性) even with people who __________ us.
The world of 2030 won’t build itself. We are__________ it now, so my final wish is that we build the kind of world we actually want our children to live in.
1.A.special B.generous C.intelligent D.dependent
2.A.observing B.showing C.presenting D.congratulating
3.A.athlete B.adolescent C.adult D.kid
4.A.fun B.sponsor C.lover D.reader
5.A.interval B.century C.span D.decade
6.A.amusements B.experiences C.processes D.changes
7.A.found B.struggle C.face D.shake
8.A.worry B.sacrifice C.guess D.promise
9.A.plans B.methods C.hopes D.tips
10.A.particular B.serious C.optimistic D.enthusiastic
11.A.raising B.rising C.growing D.arising
12.A.for sure B.as usual C.no longer D.till now
13.A.slow B.record C.accept D.undertake
14.A.suspect B.astonish C.wonder D.declare
15.A.pick up B.fight over C.turn down D.take part
16.A.finished B.continued C.remained D.left
17.A.goals B.signs C.disagreements D.results
18.A.escape B.express C.seek D.affect
19.A.differ from B.agree with C.refer to D.call for
20.A.blaming B.admiring C.proving D.creating
Some Myths You Strongly Keep Believing Are Untrue
There are varieties of false myths we spread from day to day.1.. Otherwise, people will continue to believe such ridiculous myths undoubtedly. You will realize some of the most acceptable facts are completely untrue.
Men get beer bellies from beer.
We blame the beer for the belly. It is widely believed that men who constantly drink beer end up with a beer belly. However, it is not the beer that’s to blame, but the abundance of unhealthy snacks that often accompany the drink. Alcohol in beer irritates the stomach, therefore causing an increased appetite. Dr. Michael Jensen, an obesity specialist in Minnesota USA says that drinking beer makes liver burn alcohol instead of fat, leaving the latter to accumulate in the waist.2., while the one of women’s accumulates in the hips and bottoms, as a result of different sexual characteristics.
3..
We are told that dogs see the world in black and white. But the truth is that they can distinguish colors just not in the same way we do. Jay Needs from the University of Washington in Seattle proves that our furry friends are able to receive a limited range of colors, which means they can distinguish objects of the same shape. In general, a dog’s vision is very similar to that of a person with red-green color blindness.
Carrots improve eyesight.
4.. This myth came into existence during the Second World War. The British Army claimed that fighter pilots had excellent night vision as a result of their consumption of large quantities of carrots. Actually, they had radars onboard which made it faster and easier to detect the enemies. The myth about the amazing power of carrots was invented and spread by the media so that enemies would not learn about the fact.5..
A.Dogs can distinguish colors
B.Men’s fat is stored in their bellies
C.Dogs see the world in black and white
D.Men’s fat is not mostly accumulated in these parts
E.Eventually, it spread all over the world and people are still convinced of it
F.We agree with the view that eating carrots plays an essential part in good vision
G.It is high time that scientists created a separate department dedicated to exposing the truth
Sometimes, you just can’t say no to another spoonful of ice cream and maybe one more after that. Why not? You deserve it.
There’s no need to beat yourself up about it later. The truth is that you were probably bound to do that from the very first spoonful. That’s because there is a switch in your brain, and for whatever reason, it can get stuck in the “on” position.
According to a new study, this impulse (冲动) control may come down to a very specific circuit (回答) in the brain which occasionally produces melanin-concentrating hormone, or MCH—a chemical linked with our desire for food or drugs. And that circuit always says yes.
By manipulating this circuit, it is possible that we might be able to develop cures for overeating that help people stick to a diet without reducing normal appetite or making delicious foods like donuts less delicious.
For their research, the scientists treated rats to a self-serve buffet. Bur the treats were on a timed delivery system, making tasty food every 20 seconds, and only when a rat pressed a lever (杠杆). Hit that lever too early—as impatient test subjects occasionally did—and the counter would start from scratch. Lever-happy rats would have to wait another cycle before the food became available again.
A second experiment offered the rats two dining options. Push Lever A and get an immediate small reward. Pushing Lever B meants waiting for around40 seconds, but the food reward would be much bigger. Guess which lever those impatient rats were most food of? That’s right. They picked the now-now-now switch.
Their impulsiveness, however, rose sharply when scientists gave the rats MCH. These animals become more impulsive. MCH, it seemed, could talk rats into loosening its inhibitions (拘束). The result? More please.
Researchers can now see where that conversation between the brain’s reward system and its impulse control center takes place. The next step will be to map it—and potentially influence the discussion. It may eventually be possible to control a food-eating impulse.
1.Which of the following can best replace the underlined word “manipulating” in paragraph 4?
A.Strengthening. B.Controlling.
C.Classifying. D.Creating.
2.What would happen when a rat pressed a lever earlier than the fixed time?
A.A bigger food reward would appear.
B.Tasty food would be delivered much sooner.
C.Longer time would be needed for food to appear.
D.The lever would be stopped form delivering food.
3.Why did the researchers conduct the experiments?
A.To find out the effect of MCH on animals.
B.To prove rats are also greedy for more food.
C.To study how levers influence rats’ impulse.
D.To show rats and humans have similar impulse for food.
4.What is the best title for the text?
A.What Is the Effect of Your Impulse?
B.What Can You Do to Resist More Food?
C.Why Can’t You Say “No” to Your Impulse?
D.Why Do You Always Give in to One More Mouthful?
Food experts say washing could spread the germs on your turkey in the kitchen sink or nearby food. But it's been a challenge trying to convince cooks to stop rinsing （冲洗）off raw poultry. Germs that can make people sick are common in the guts of healthy poultry and are legally allowed to be on raw turkey and chicken. The assumption is that nobody eats their poultry raw, and that thorough cooking will kill the bacteria.
The do — not — wash raw poultry advice from the USDA is relatively new and perhaps hasn't caught on because it goes against the common belief that washing makes things clean, said Chapman. Benjamin Chapman, a study author and food safety expert at North Carolina State University, said the instinct to wash raw poultry goes back at least decades when people relied more on visual clues to spot problems with poultry. Meanwhile, washing hands and surfaces are also important.
But food preparation is a complicated act, and germs from poultry can be spread even if it's not washed, especially when birds are removed from packaging.
The USDA-funded study stresses that point. Researchers sprayed raw chicken with a harmless strain of E. coli （大肠杆菌）and watched volunteer cooks at test kitchens. Among those who washed their raw chicken, about a quarter ended up spreading the bacteria to their lettuce. But even some of those who did not rinse the chicken got germs on the lettuce. And there are other opportunities for germs to survive on turkeys: melting and cooking.
To ensure a bird is thoroughly cooked, they say to use a thermometer to check that the deepest and thickest parts of it have reached 165 degrees. Even after the meal is cooked, you aren't out of the danger zone. To keep turkeys and other leftovers safe, experts say they should be refrigerated after two hours.
1.People don't accept USDA's advice because____.
A.the advice is relatively new
B.cleaning seems more trustworthy
C.cooks clean the turkey before cooking it
D.heat can kill most germs and no one eats raw food
2.What can be concluded from Paragraph 4?
A.Food packages carry germs.
B.Hands and surfaces are easy to get E. coli.
C.Germs from a turkey can be spread whether it is washed or not.
D.Multiple methods should be applied to food to get rid of germs.
3.Which way may help to cook a turkey safely?
A.Rinse off the turkey before it is heated.
B.Keep the turkey away from the lettuce and refrigerator.
C.Wash hands and packages before taking out the turkey.
D.Use a thermometer to check the temperature of the turkey.
4.From which section of a magazine is the text probably taken?
A.Culture. B.Science.
C.Education. D.Medicine.
“A bird with a broken wing will never fly as high. ” I’m sure T. J, Ware was made to feel this way almost every day in school.
By high school, T, J. was the most celebrated troublemaker in his town. Teachers literally cringed when they saw his name posted on their classroom lists.
I met T. J. for the first time when all the students at school were attending ACE training. At first, he showed no interest in the discussion. But slowly, the interactive games drew him in. T. J. had some brilliant thoughts on those situations, which were welcomed by his group. By the end of the activity, the other students on the team were impressed with his concern and ideas and elected T. J. co-chairman of the team.
When T. J. showed up at school on Monday morning, a group of teachers were expressing their disagreements to the school principal about his being elected co-chairman. The principal reminded them that the purpose of the program was to uncover any positive feeling and strengthen its practice until true change can take place. The teachers left the meeting, firmly convinced that failure was unavoidable.
Two weeks later, T. J. and his friends led a group of 70 students to collect food They collected a school record: 2,854 cans of food in just two hours. The local newspaper covered the event with a full-page article the next day. That newspaper story was posted on the main bulletin board at school, where everyone could see it.
T. J. ,s picture was up there for doing something great.
T. J. started showing up at school every day and answered questions from teachers for the first time. The event he started now yields 9,000 cans of food in one day, taking care of 70 percent of the need for food for one year.
T, J. reminds us that a bird with a broken wing only needs mending. But once it has healed, it can fly higher than the rest. T. J. got a job. He became productive. He is flying quite nicely these days.
1.What do we know about T.J. before he attended the training?
A. He was talkative in class.
B. He didn't have a good fame.
C. His ideas were quite impressive.
D. He showed up at school every day.
2.Why did the team members elect T.J. co-chairman?
A. He promised them a bright future.
B. They wanted to offer him a chance.
C. They thought the job was quite easy.
D. He was considered qualified for the job.
3.What do we know about people's attitude towards T. J. 's being elected?
A. Uncaring. B. Favorable.
C. Controversial. D. Doubtful.
4.What does the author try to convey with this story?
A. No pain, no gain. B. Rome wasn’t built in a day.
C. Don't judge a book by its cover. D. Treat others as you want to be treated.
