阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。
All the customers who went to the new supermarket had one strong wish to be the lucky customer who did not have to pay 1. her shopping, for the notice inside the entrance 2.(say), “Remember, once a week, one of our customers gets free goods. This may be your lucky day!”
For several weeks, Mrs. Edwards hoped to be one of the lucky 3. (housewife) like many of her friends. She never gave up hope. Cupboards in her kitchen 4. (fill) with things that she didn’t need at all. She dreamed of the day 5. the manager of the supermarket would say to her with a smile, “ Madam, this is your lucky day. Everything in your basket is free.”
One Friday afternoon, after she had finished shopping and had taken it to her car, she found that she 6. (forget) to buy some sugar. She rushed 7. to the supermarket, got the sugar and went towards the cash desk. As she did 8., she saw the manager of the supermarket come up to her and said, “ 9. (congratulate)! You are the 10. (lucky) among all the customers this week and everything in your basket is free!”
Long long ago, there was a small village．This village had a ___ tradition．At the beginning of every year, any boy who had reached the age of majority (成年) was given land and money to build a home．The boy had to _____his home before winter．If his home failed to endure the cold weather in winter, the villagers could not______ him in any way．
One ___, Paul and Marc reached their majority．They ____ their land and money and decided to search nearby villages for ideas on building their homes．In each village, they found the nicest ______and talked to the owners．Each owner gladly offered _____．
After Marc saw several homes, he _____the best ideas and went back to his own land．Paul, ____, continued collecting more ideas．Soon he had so many great ideas that he began to ____ some of them．But he always believed he could find even better ideas in the next village．
Marc began building his home．He had several false starts, ____ his home gradually rose from his land．By fall, Marc had finished his home．It wasn't perfect，but it was strong and he could ____it later. Paul enjoyed all the beautiful homes and____with home owners．The first snow came and Paul, realizing he was running out of time, _____back to his land．He built the best home he could in the time he had, but it was___．The first winter storm destroyed his home and he froze to_____．The villagers mourned for him．
Marc____ the winter．Each year, Marc searched for other good ideas he could use to make his own home look better．He became a leader in the village, _____a family, and lived a happy, content life．
We all build and improve our own mental homes．It’s _____ and fun for us to search for ideas from other mental home owners, but we only improve our own mental home if we actually ___ the best ideas．
1.A. strange B. hopeful C. literary D. cultural
2.A. find B. make C. complete D. buy
3.A. help B. encourage C. scold D. persuade
4.A. winter B. summer C. autumn D. spring
5.A. exchanged B. received C. recognized D. advice
6.A. girls B. jobs C. houses D. presents
7.A. rooms B. drinks C. attention D. advice
8.A. expected B. gathered C. created D. understood
9.A. similarly B. finally C. however D. furthermore
10.A. forget B. believe C. replace D. doubt
11.A. because B. although C. but D. so
12.A. repair B. rebuild C. sell D. improve
13.A. conversations B. achievements C. struggles D. arguments
14.A. drove B. rushed C. flew D. moved
15.A. weak B. funny C. small D. amazing
16.A. blindness B. death C. sadness D. illness
17.A. experienced B. loved C. survived D. spent
18.A. brought B. earned C. contacted D. raised
19.A. slow B. easy C. dangerous D. special
20.A. realize B. bring C. collect D. apply
Many students have to live with roommates while going to school or university. Having a roommate can be one of the best experiences, or easily one of the worst. 1.
Follow these five tips to avoid the common mistakes that make good roommate relationships worse.
Talk things out. 2. If something happens, sit down with your roommates and have a face-to-face conversation. Complaining about your roommates behind their backs creates nothing but awkward situations and general unhappiness.
3. Some roommates become the best of friends, and some don’t. Don’t put pressure on yourself or your roommate to reach this level, especially when you first meet. Remember, you are trying to make a new friend, not scare your roommate away. And if your roommate doesn’t end up being your best friend, there is no need to worry about it.
Clean up after yourself. Or at least, keep your mess on your side. 4. But being considerate with where you put your own stuff will help you avoid the arguments.
Ask before you take. This applies to food, clothes, supplies and anything else that you don’t own. 5. Even if you both agree to share everything you should still ask.
A. Don’t expect to be best friends.
B. Communication is of vital importance.
C. You don’t need to keep the room clean and organized all the time.
D. Rooms can be really easy for a mess to pile up.
E. If you want to have a good relationship with your roommate, it all starts with you.
F. Not all roommates can become your best friends.
G. Show your roommate that you have respect for his or her belongings.
Batteries can power anything from small sensors to large systems. While scientists are finding ways to make them smaller but even more powerful, problems can arise when these batteries are much larger and heavier than the devices themselves. University of Missouri(MU) researchers are developing a nuclear energy source that is smaller, lighter and more efficient.
“To provide enough power, we need certain methods with high energy density(密度)”，said Jae Kwon, assistant professor of electrical and computer engineering at MU. “The radioisotope(放射性同位素) battery can provide power density that is much lighter than chemical batteries.”
Kwon and his research team have been working on building a small nuclear battery, presently the size and thickness of a penny, intended to power various micro / nanoelectromechanical systems (M/NEMS). Although nuclear batteries can cause concerns, Kwon said they are safe.
“People hear the word ‘nuclear’ and think of something very dangerous,” he said, “However, nuclear power sources have already been safely powering a variety of devices, such as pace-makers, space satellites and underwater systems.”
His new idea is not only in the battery’s size, but also in its semiconductor(半导体). Kwon’s battery uses a liquid semiconductor rather than a solid semiconductor.
“The key part of using a radioactive battery is that when you harvest the energy, part of the radiation energy can damage the lattice structure(晶体结构) of the solid semiconductor,” Kwon said, “By using a liquid semiconductor, we believe we can minimize that problem.”
Together with J. David Robertson, chemistry professor and associate director of the MU Research Reactor, Kwon is working to build and test the battery. In the future, they hope to increase the battery’s power, shrink its size and try with various other materials. Kwon said that battery could be thinner than the thickness of human hair.
1.Which of the following is true of Jae Kwon?
A. He teaches chemistry at MU.
B. He developed a chemical battery.
C. He is working on a nuclear energy source.
D. He made a breakthrough in computer engineering.
2.Jae Kwon gave examples in Paragraph 4_________.
A. to show chemical batteries are widely applied.
B. to indicate nuclear batteries can be safely used.
C. to describe a nuclear-powered system.
D. to introduce various energy sources.
3.Liquid semiconductor is used to _________.
A. get rid of the radioactive waste B. test the power of nuclear batteries.
C. decrease the size of nuclear batteries D. reduce the damage to lattice structure.
Christopher Thomas, 27, was a writer by night and a teacher by day when he noticed he was always tired and was losing weight fast. Diagnosed with diabetes(糖尿病), Thomas would need to inject himself with insulin(胰岛素) three times a day for the rest of his life or risk nerve damage, blindness, and even death. And if that weren't bad enough, he had no health insurance.
After a month of feeling upset, Thomas decided he'd better find a way to fight back. He left Canton, Michigan for New York, got a job waiting tables, nicknamed himself the Diabetic Rockstar , and created diabeticrockstar.com, a free online community for diabetics and their loved ones—a place where over 1,100 people share personal stories, information, and resources.
Jason Swencki’s son, Kody, was diagnosed with type diabetes at six. Father and son visit the online children's forums(论坛) together most evenings. "Kody gets so excited, writing to kids from all over," says Swencki, one of the site's volunteers. "They know what he's going through, so he doesn't feel alone."
Kody is anything but alone: Diabetes is now the seventh leading cause of death in the United States, with 24 million diagnosed cases. And more people are being diagnosed at younger ages.
These days, Thomas's main focus is his charity（慈善机构）, Fight It, which provides medicines and supplies to people—225 to date—who can't afford a diabetic's huge expenses. Fight-it.org has raised about $23,000—in products and in cash. In May, Thomas will hold the first annual Diabetic Rockstar Festival in the Caribbean.
Even with a staff of 22 volunteers, Thomas often devotes up to 50 hours a week to his cause, while still doing his full-time job waiting tables. "Of the diabetes charities out there, most are putting money into finding a cure," says Bentley Gubar, one of Rockstar's original members. "But Christopher is the only person I know saying people need help now."
1.Which of the following is true of Christopher Thomas?
A. He needs to go to the doctor every day. B. He studies the leading cause of diabetes
C. He has a positive attitude to this disease. D. He encourages diabetics by writing articles.
2.Diabeitcrockstar.com was created for _________.
A. diabetics to communicate B. volunteers to find jobs
C. children to amuse themselves D. rock stars to share resources.
3.According to the text, Kody ______.
A. feel lonely because of his illness B. benefits from diabeticrockstar.com
C. helps create the online kid’s forums D. writes children’s stories online
Are African wild dogs really dogs? What’s the difference between African wild dogs and the dogs we know as pets? For one thing, African wild dogs, which live in Africa, only have four toes, while domestic (驯养的) dogs and wolves have five. But you won’t want to count for yourself, because they are truly wild animals.
“Wild dogs are not somebody’s domestic dogs that ran away and didn’t come back, although some people used to think that,” explains Dr. McNutt, who studies these animals at Wild Dog Research Camp in the African country of Botswana. “They are actually Africa’s wolves, and just like wolves, they do not make good pets. They need to be out in the wild doing what they are supposed to do — find the food they need to survive and feed their babies.” In fact, they travel so far that researchers have to use radio collars (颈圈) to keep track of them. The collars send out radio signals that tell people where the dogs are. No two wild dogs have the same pattern of coats, so it is easy to tell them apart.
African wild dogs are smart and sociable, like pet dogs. Adult dogs, male and female, are willing to take good care of young ones.
Millions of domestic dogs live on the planet, but there are probably fewer than 6,000 African wild dogs left. Humans hunt them and farmers who don’t want them to go after cows and sheep poison them. Humans are also destroying the wild, natural habitat (栖息地) they need to survive in. Fortunately, today more farmers are finding other ways to protect their cows and sheep from African wild dogs instead of killing the animals.
1.Which of the following can explain why African wild dogs are different from domestic dogs?
A. African dogs can live longer than domestic dogs.
B. African dogs have fewer toes than domestic dogs.
C. African dogs are much bigger in size than domestic dogs.
D. African dogs are much more dangerous than domestic dogs.
2.In Dr. McNutt’s view, African wild dogs .
A. are a kind of wolves
B. can be trained as pet dogs
C. actually are missing domestic dogs
D. generally are not used to living in groups
3.What’s the researchers’ purpose of using radio collars?
A. To know where African wild dogs go.
B. To play games with African wild dogs.
C. To tell African wild dogs apart from other dogs.
D. To prevent African wild dogs from traveling too far.
4.What suggestion does the author give in the last paragraph?
A. Farmers should use domestic dogs to fight against wild dogs.
B. African wild dogs should be protected instead of being killed.
C. Farmers should take responsibility for feeding African wild dogs.
D. African wild dogs should be used to protect farmers’ cows and sheep.
5.Which of the following can be used as the title of the passage?
A. How to keep wild dogs
B. How to train domestic dogs
C. An introduction to African wild dogs
D. Differences between domestic dogs and wild dogs
