AtEastChinaUniversityofScience-优题课

Want to lose weight? Try eating. That’s one of the ways being developed by scientists experimenting with foods that trick the body into feeling full.
At he Institute of Food Research in Norwich, England, food expert Peter Wilde and his colleagues are developing foods that slow down the digestive system, which then sends a signal to the brain that stops appetite. “That fools you into thinking you’ve eaten far too much when you really haven’t,” said Wilde. From his studies on fat digestion, he said it should be possible to make foods, from bread to yoghurt, that make it easier to diet. While the research is still in its early stages, Wilde’s approach to controlling appetite is one that some doctors say could be a key to solving the problem of obesity.
“Being able to switch off appetite would be a big help for people having trouble losing weight,” said Steve Bloom, a professor of investigative medicine at London’s Imperial College, who is not connected to Wilde’s research. Bloom said that regulating appetite through foods is theoretically possible. But Bloom warned that controlling appetite may be very challenging. “The body has lots of things to prevent its regulatory systems from being tricked,” he said.
Wilde’s research makes use of the body’s ways of digesting fat. Fat normally gets broken down in the first part of the small intestines (肠道). When you eat a high-fat meal, however, the body can only digest the fat entirely further down in the intestines, which then causes the body to produce a kind of chemical to stop the appetite.
Wilde’s approach copies what happens with a high-fat meal. He coats fat droplets (滴) in foods with modified proteins from plants, so it takes longer for the chemical that breaks down fat to reach it. That means that the fat isn’t digested until it hits the far reaches of the intestines. At that point, intestinal cells send a signal telling the brain it’s full. Even though the body hasn’t had a high-fat meal, it stops the appetite as if it has. If the fat had been digested earlier in the intestines, no such signal would be sent.
51. According to Wilde’s research, what could people do if they want to lose weight?
A. Eat more bread and yoghurt. B. Trick the body by eating nothing.
C. Have foods with fat droplets coated. D. Control their digestive system strictly.
52. The underlined word “obesity” in Para. 2 most probably means “________”.
A. being too fat B. eating too much food
C. stopping appetite D. being unhealthy
53. What can be inferred about Professor Bloom’s opinion towards Wilde’s approach?
A. It won’t work since the body’s regulatory systems will never be tricked.
B. It is sure to switch off the appetite of people with a weight problem.
C. It sounds terrible because regulating appetite through foods is not practical at all.
D. It’s no that easy to trick the body so more research should be done.
54. Which of the following is TRUE about Wilde’s approach?
A. A kind of chemical is added to make a high-fat meal less fatty.
B. Fat is digested earlier and the body sends a signal telling the brain it’s full.
C. Fat won’t get broken down in the first part of the small intestines.
D. The chemical that breaks down fat will not reach the fat.
55. The passage is written to ________.
A. give advice on how to stop eating high-fat meals
B. introduce a research on controlling appetite
C. discuss the argument between two professors
D. show different ways to trick the body

It’s not just adults who have a thing or two to discuss with other people, babies too have their own social lives and enjoy group interaction, according to a world-first study.
The breakthrough study conducted by psychologist Professor Ben Bradley, at Charles Sturt University, could completely transform the way child-care centres are set up. In their study, the researchers examined groups of nine-month-old babies in new South Wales and Britain.
And they came across astounding (令人吃惊的) results – it was found that infants had “social brains” and focused not just on their mothers but on social life in groups as well.
“They communicate with more than one baby at once, and show jealousy and generousness,” said Professor Bradley.
He added, “They develop their own meanings through group interaction, they notice if a group member is behaving differently and they take on roles, such as leaders and followers.”
“A baby who has a depressed mother tends to be withdrawn (内向的), but put that same baby in a group of its peers (同龄人)and they behave and interact like any other baby.”
It was the first all-baby group study ever to be conducted. “Most studies of babies concentrate on the infant-mother relationship, assuming that is the single foundation for mental health, but babies are constantly involved with groups of people other than their mothers: fathers, siblings, grandparents and those taking care. Therefore, the ‘mother-baby approach’ needs to be combined with a ‘group approach’,” said Bradley.
Phoebe Christison, a child-care worker at Camperdown Sunshine Bubs in Sydney’s inner west, said she often noticed what appeared to be emotional attachments developed between toddlers.
She said, “Joel (10 months) and Isabella (11 months) always like to hold hands when they sit in their high chairs and eat. And babies definitely show jealousy. They push and touch each other, and copy what the other is doing.”
46. Which of the following statements about the study is TRUE?
A. It’s the first study to look at all-baby groups.
B. It divides babies according to their personalities.
C. Its aim is to change the way of child care.
D. Its results are unbelievable.
47. A baby who has a depressed mother _________.
A. tends to be a follower B. also enjoys group interaction
C. has poor social ability D. pays more attention to its mother
48. What can be inferred from the result of this study?
A. Babies are affected by groups more than by their mothers.
B. There’s no need of child-care centers at all.
C. Adults should include babies when having social activities.
D. The normal infant-mother bond alone isn’t enough for the good mental health for babies.
49. The underlined word “toddlers” in Para. 8 can be replaced by “_________”.
A. adults B. infants C. peers D. groups
50. The example given in the last paragraph proves that a baby ________.
A. is born to be friendly to other babies
B. has interest in peers as well as in its mother
C. may have emotional attachments to another baby
D. shows jealousy and generousness as an adult

Ⅲ 阅读 (共两节，满分40分)
第一节阅读理解 (共15小题；每小题2分，满分30分)
阅读下列短文，从每题所给的A、B、C和D项中，选出最佳选项，并在答题卡上将该项涂黑。（湛江市第二中学2010届高三级第二次月考英语）
( A)
①Isaac Stern was more than a great violin player. He was one of the most honored musicians in the world. He was an international cultural ambassador. He was a major supporter of the arts in America and in other countries. He was a teacher and activist.
②Issac Stern was born in 1920 in what is now Ukraine. His parents moved to San Francisco, California the following year. His mother began teaching Isaac the piano when he was six. He began taking violin lessons after hearing a friend play the instrument. Later, he began studying music at the San Francisco Conservatory (音乐学院). He progressed quickly. When he was 16, he played with the San Francisco Symphony Orchestra. The next year, he performed in New York City and was praised by music critics.
③During World War II, Mr Stern played for thousands of American soldiers. It was the first time many of them had heard classical music. After the war, he was the first American violinist to perform in a concert in the Soviet Union. He also supported young musicians and cultural organizations in Israel.
④In 1979, Isaac Stern visited China. He met with Chinese musicians and students. He taught them about classical Western music. His visit was made into a film, which is called From Mao to Mozart: Isaac Stern in China. It won an Academy Award for best documentary film.
⑤In 1984, Isaac Stern received the Kennedy Center Honors Award for his gifts to American culture through music. He expressed his thoughts about the part that music plays in life. He said he believed that music makes life better for everyone, especially children.
⑥Mr Stern supported and guided younger classical musicians. They include violinists Itzhak Perlman and Pinchas Zukerman, cellist Yo-Yo Ma, and pianist Yefim Bronfman.
⑦Isaac Stern died in 2001 at eh age of 81. He was a major influence on music in the 20th century. He leaves the world richer with his many recordings.
41. Which of the following is the RIGHT time order for these events in Stern’s life?
a. He began learning music in an institution.
b. He received the Kennedy Center Honors Award.
c. He visited the Soviet Union.
d. He met with Chinese musicians.
e. He performed for American soldiers.
A. a,e,c,d,b B. a,e,b,c,d C. e,a,b,c,d D. e,a,c,d,b
42. Paragraph 2 is mainly about ______.
A. how Stern began to learn music B. how Stern began his musical career
C. Stern’s early education D. Stern’s achievement in music
43. Which of the following statements about Stern is TRUE?
A. He was an activist in opposing war.
B. He was active in cultural exchanges between countries.
C. He had an interest in both playing music and making films.
D. He made a lot of money from music.
44. The Underlined word “cellist” in Paragraph 6 may refer to ________.
A. someone who supports young musicians
B. someone who wants to be a musician
C. someone who has a gift for music
D. someone who plays a certain kind of instrument
45. Which of the following shows the RIGHT structure of the text?
A. ①B.①
↓ ↓
②③④⑤ ②③④⑤⑥
↓ ↓
⑥⑦⑦
C. ①②③④⑤⑥D.①②③
↓↓
⑦④⑤⑥⑦

Sports shoes that find out whether their owner has enough exercise to warrant time in front of the television have been devised in the UK.
The shoes — named Square Eyes — contain an electronic pressure sensor and a tiny computer chip to record how many steps the wearer has taken in a day. A wireless transmitter passes the information to a receiver connected to a television, and this decides how much evening viewing time the wearer deserves, based on the day’s efforts.
The design was inspired by a desire to fight against the rapidly ballooning waistlines among British teenagers, says Gillian Swan, who developed Square Eyes as a final year design project at Brunel University to London, UK. “We looked at current issues and childhood overweight really stood out,” she says. “And I wanted to tackle that with my design.”
Once a child has used up their daily allowance gained through exercise, the television automatically switches off. And further time in front of the TV can only be earned through more steps.
Swan calculated how exercise should translate to television time using the recommended(推荐) daily amounts of both. Health experts suggest that a child take 12,000 steps each day and watch no more than two hours of television. So, every 100 steps recorded by the Square Eyes shoes equals precisely one minute of TV time.
Existing pedometers （计步器） normally clip onto a belt or slip into a pocket and keep count of steps by measuring sudden movement. Swan says these can be easily tricked into recording steps through shaking. But her shoe has been built to be harder for lazy teenagers to cheat. “It is possible, but it would be a lot of effort,” she says. “That was one of my main design considerations.”
66．According to Swan, the purpose of her design project is to ____.
A．keep a record of the steps of the wearer
B．deal with overweight among teenagers
C．prevent children from being attracted by the TV programs.
D．prevent children from being tricked by TV programs
67．Which of the following is true of Square Eyes shoes?
A．They control a child’s evening TV viewing time.
B．They determine a child’s daily pocket money.
C．They have raised the hot issue of overweight.
D．They contain information of the receiver.
68．What is emphasized by health experts in their suggestion?
A．The exact number of steps to be taken.
B．The exact number of hours spent on TV.
C．The proper amount of daily exercise and TV time.
D．The way of changing steps into TV watching time.
69．Compared with other similar products, the new design ____.
A．makes it difficult for lazy teenagers to cheat
B．counts the wearer’s steps through shaking
C．records the sudden movement of the wearer
D．sends teenagers’ health data to the receiver
70．Which of the following would be the best title for the text?
A．Smart Shoes Decide on Television Time
B．Smart Shoes Guarantee(保证) More Exercise
C．Smart Shoes Measure Time of Exercise
D．Smart Shoes Stop Childhood Overweight

For many years, scientists couldn't figure out how atoms and molecules on the Earth combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecules in the primitive ocean. What's more, living things have energy and can reproduce, while the chemicals on the Earth 4 billion years ago were lifeless.
　　After years of study, scientists figured out that living things, including human bodies, are basically made of amino acids and nucleotide bases. These are molecules with millions of hydrogen, carbon, nitrogen, and oxygen atoms. How could such complicated molecules have been formed in the primitive soup? Scientists were stumped.
　　Then, in 1953, two scientists named Harold Urey and Stanley L. Miller did a very simple experiment to find out what had happened on the Primitive Earth. They set up some tubes and bottles in a closed loop, and put in some of the same gases that were present in the atmosphere 4 billion years ago: water vapor, ammonia, carbon dioxide, methane, and hydrogen.
　　Then they shot an electric spark through the gases to simulate bolts of lightning on the ancient Earth, circulated the gases through some water, sent them back for more sparks, and so on. After seven days, the water that the gases had been bubbling through had turned brown. Some new chemicals were dissolved in it. When Miller and Urey analyzed the liquid, they found that it contained amino acids-the very kind of molecules found in all living things.
61. When did scientists come to realize how the atoms and molecules on the Earth combined to make living thing?
　　A. 4 billion years ago. B.1953.　C. After seven days.D. Many years later.
62. Scientists figured out that human bodies are basically made of .
A.amino acids
B.molecules
C. hydrogen, carbon, nitrogen and oxygen atoms
D. water vapor, ammonia, carbon dioxide, methane and hydrogen
63. Harold Urey and Stanley L.Miller did their experiment in order to .　
A. find out what had happened on the Earth 4 billion years ago
　　 B.simulate bolts of lightning on the ancient Earth
　　 C. dissolve some new chemicals
　　D.analyze a liquid
64. At the end of the last paragraph, the underlined word "it" refers to .
A. a closed loop B. an electric spark C.water D. the liquid
65. According to the writer, living things on the Earth include .
　A. atoms and molecules B.chemicals　
C. plants, fish, dinosaurs and human beings D.the primitive soup

A．when they eat school food	B．after they exchange gifts
C．if they collect the waste	D．if they finish all their food

A．students get a good education	B．schools offer small gifts
C．students waste too much food	D．school food is more delicious