The Food and Drug Administration is, again, threatening to impose(征税) milk and m

The Food and Drug Administration is, again, threatening to impose(征税) milk and m

题型:不详难度:来源:

The Food and Drug Administration is, again, threatening to impose(征税) milk and meat from cloned animals on a public that opposes the technology and its products.
Respected polls report that more than 60% of Americans think animal cloning is immoral, and that most people said they wouldn’t knowingly eat the products even if the FDA approved them. But because the FDA would allow cloned meat and milk to be sold without identifying labels, consumers wouldn’t be able to avoid them. The FDA has consistently tilted toward those who want cloned milk and meat in our food. Agency officials have repeatedly asserted that science shows cloned milk and meat are safe for humans. But the FDA has never published the complete scientific studies it says support that claim.
The argument that cloning is safe for animals is unconvincing. Cloned meat and milk offer no public economic benefits. Having cloned cows produce more milk wouldn’t reduce milk prices. US farmers produce more milk than we drink, and the government is required to buy the surplus. Since 2000, dairy support programs have cost taxpayers more than $ 5 billion.
Most important, this first decision to advance animal biotechnology raises ethical issues beyond the FDA’s expertise(专家意见). Techniques used to clone animals will advance the ability to clone humans-and create animals with human genes. Neither the agency nor animal scientists are qualified to tell us whether and when it is ethically acceptable for humans to alter the essential nature of animals. We need a national discussion, including ethicists and religious leaders, to consider the wisdom of cloned and transgenic animals. Given the risk of unintended consequences, we should proceed cautiously. The president should halt further FDA action on cloning and set in motion(运作) a process for beginning this broader discussion.
1. The author’s attitude towards cloning is __________.
A. standing in the middle      B. opposed     C. approving     D. supportive
3. In US many people buy cloned foods __________.
A. to support the new technique
B. because FDA approved them
C. because they cannot tell which is cloned food
D. because they cannot read the labels.
3. From the text we know that cloning technique ___________.
A. developed well enough to clone human beings
B. may cause unintended bad results to human beings
C. will bring more unexpected economic benefits
D. is supported by ethicists and religious leaders
4. What’s the best title of this passage?
A.Public Is Against Cloned Food     B.Benefits of Cloned Food
C.Cloned Food Is Illegal            D.Technique in Cloned Food
答案

小题1:A
小题2:C
小题3:B
小题4:C
解析

举一反三

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。
For most pregnant women, exercise is the last thing on their minds. After all, keeping slim while you’re expecting isn’t exactly the top priority— rather, it’s making sure your baby gets enough nutrients to grow. But in a small new study, researchers at the University of Auckland in New Zealand report that a mother’s regular aerobic exercise may be good for a growing fetus’ health — and may even help a baby get a healthier start in life.
The finding is a bit surprising, because exercise is known to lower the risk of insulin resistance(胰岛素抵抗),a condition eventually leading to diabetes(糖尿病). Although insulin resistance is a detriment in healthy adults, it turns out to be helpful for proper fetal(胎儿)development. In pregnant women, this condition means nutrients get shunted to the growing baby.
The question is: could a mother’s exercise put her developing baby’s food supply at risk? Past studies looking at the effect of exercise on birth weight have been inconclusive, and none have really investigated the influence of exercise on the mother’s sensitivity to insulin. So the University of Auckland’s Dr. Paul Hoffman and his team decided to study 84 first-time mothers, who were of normal weight on average, and track any effects aerobic exercise(有氧运动) might have on their insulin sensitivity and, ultimately, on their babies’ birth weight. Researchers asked some women to exercise on a stationary bicycle for at least 40 minutes per session, up to five times each week, starting in the 20th week of pregnancy; the other women were not specifically asked to exercise. When the two groups and their babies were compared, the team found that women who bicycled regularly gave birth to babies who were on average 150g lighter than those born to the non-exercising mothers. In both groups, however, the babies were of healthy weight, and there was no difference in the mothers’ weights.
Generally speaking, babies on the lower end of the normal weight range are considered healthier and less prone to developing diabetes and obesity than heavier ones, so this was an encouraging result. Even more reassuring was that regular exercise did not seem to affect the flow of nutrients to the growing babies in the womb.
1. According to the new study, a pregnant woman’s regular exercise may _______.
A. bring benefits to a baby’s growth
B. lower the risk of insulin resistance
C. put her baby’s food supply at risk
D. help her keep slim and healthy
2. What does the underlined word “detriment” mean in the second paragraph?
A. Something that brings good.
B. Something that brings damage.
C. Something that brings obstacles.
D. Something that brings development.
3. What is the purpose of the experiment carried out by Dr. Paul Hoffman?
A. To investigate the influence of exercise on pregnant women.
B. To find out what aerobic exercise can benefit a baby’s growth.
C. To make sure of the effects exercise may have on babies’ birth weight
D. To compare the differences between mothers who exercise and who don’t
4. Which of the following statements is true according to the passage?
A. Lighter babies are generally believed to be healthier than heavier ones.
B. Non­-exercising mothers will definitely give birth to heavier babies.
C. No studies have looked at the effect of exercise on birth weight before.
D. Some women studied were asked to exercise regularly while some don’t.
5. Which of the following may be the best title for the passage?
A. All mothers should take aerobic exercise.
B. Moms who exercise give birth to lighter babies。
C. Exercise reduces the risk of insulin resistance.
D. Heavier babies are more likely to develop diabetes.
题型:不详难度:| 查看答案

A woman wears a face mask to protect her from polluted air in Lanzhou, China, in December.
A new study showed air pollution might put people more at risk for heart disease than scientists had thought.Kristin Miller, a doctoral student at the University of Washington, said chances of getting the disease were related to not only which city a woman lived in, but also where in the city.The study found that the effects of air pollution were often larger within cities than between cities.
The new findings make experts suspect that current pollution limits may be inadequate.Scientists examined rates of heart attack, stroke (中风) and other cardiovascular (心脏血管的) events in women with long-term exposure to air pollution.
The study involved women over the age of fifty who had no sign of cardiovascular disease at the start of the research.The study followed the women for as long as nine years to see how they would develop cardiovascular problems.
The researchers also examined levels of fine particles (粒子,微粒) in the air in 36 areas across the country.That information came from the Environmental Protection Agency.The extremely small particles came from industrial smoke and traffic, along with things like wood-burning fireplaces in houses.
In the study, every ten-microgram increase in pollution was linked to a twenty-four percent increase in the risk of a cardiovascular event.But it was related to a seventy-six percent increase in the risk of death from cardiovascular disease.
But just how do particles in the air damage the cardiovascular system? The particles may cause the lungs to swell and release chemicals from the pollutants into the blood.The chemicals then could damage the heart.
1.The passage mainly talks about______.
A.the effects of pollution on women
B.how to protect women from air pollution
C.how air pollution damages a person’s heart
D.the relationship between air pollution and heart diseases
2.The case of the woman wearing a face mask shows ______.
A.people are paying more and more attention to their health
B.the woman is afraid of getting heart disease
C.Lanzhou city is more heavily polluted than other cities
D.air pollution is becoming more and more serious
3.We can learn from the passage that _______.
A.air pollution is more serious than scientists thought
B.the control of air pollution is effective in some cities
C.people throughout a city have the same risk of getting heart diseases
D.air pollution affects women more than men
4.The study implies that ______.
A.air pollution has a bigger effect on older women than younger women
B.small particles in the air mainly come from industrial smoke
C.the rise in air pollution may lead to a higher death rate from cardiovascular disease
D.air pollution has been affecting people for as long as nine years in the city of Lanzhou
题型:不详难度:| 查看答案

NEW YORK (Reuters Health)--Two years after New York City declared war on artificial trans fats(人造反式脂肪酸), nearly all city restaurants had successfully cut the fats from their menus, health officials reported Monday.
In December 2006, the city’s Board of Health decided to launch a gradual trans-fat phase-out (逐步淘汰)from all licensed eating establishments--including restaurants, school cafeterias and street vending spots. Then many cities like Washington, San Francisco and Philadelphia, reflected it actively.
By November 2008, more than 98 percent of city restaurants had stopped using artificial trans fats for cooking, frying and baking, researchers with the city’s health department report in the Annals of Internal Medicine.
Trans fats have become notorious because they not only raise so-called “bad” LDL cholesterol (胆固醇), as the fats in animal products do, but also lower levels of so-called “good”HDL cholesterol.
While some meats and dairy products naturally contain trans fat, most trans fats in people’s diet are artificial; they are formed when manufacturers add hydrogen to vegetable oil to make it become solid. These so-called partially hydrogenated oils were main products in foods, like crackers, cookies and pastries, and widely used by restaurants in cooking, frying and baking.
When the restriction was first adopted, the researchers note, some critics claimed it was an Orwellian measure, while others worried that restaurants would have a tough time finding suitable trans-fat replacements.                                                     
However, the transition has been smooth, Angell’s team writes, declaring that trans-fat restriction “is now a largely unnoticed part of New York City life.”
Ridding the food supply of trans fats, the researchers write, could potentially improve the cholesterol levels of millions of people.
1. In which city the local health department first decide to stop artificial trans fats?
A. Washington.    B. San Francisco.     C. Philadelphia.      D. New York.
2. We can learn from the third paragraph that ________.
A. in the city most people still use artificial trans fats
B. only a few restaurants still use trans fats and the decision win most people’s support
C. the city’s decision proves to be useless
D. many people think using artificial trans fats is not so bad
3. The underlined word “notorious” in the fourth paragraph means ________.
A. having a very bad reputation          B. having a very good reputation
C. nutritious                         D. delicious
4. What is the main idea of the passage?
A. New York restaurants are nearly all trans-fat-free (无……有)
B. None of the restaurants in the U.S can use trans fats.
C. Most of the restaurants still use trans fats once in a while.
D. Trans fats are bad for health.
题型:不详难度:| 查看答案

第三部分:阅读理解(共20小题,每小题2分,满分40分)
As China’s women’s gymnastics team enjoyed the glory of winning the country’s first team Olympic gold medal at the 2008 Beijing Olympic Games,the young gymnasts took the opportunity to remind the world that they are old enough to compete.
Weeks before the Beijing Games, some international media raised questions about the ages of some of the members of China’s gymnastics team, particularly He Kexin and Jiang Yuyuan. They said the girls might be younger than 16, the minimum age for the Olympics. But the Chinese Gymnastics Association quickly provided copies of the gymnasts’ ID cards and passports, proving they are indeed old enough to compete.
In the final, He Kexin gave a clean performance on her favorite uneven bars(高低杠), earning the second highest score after falling from the bars during qualification. “Although I fell down in the qualification, I became more confident today to make up for my mistake and I finally made it.”She said. It was a great moment for head coach Lu Shanzhen. “Our team made history today and proved to the world that we are the best.” the coach said, “The gold medal is not only for the gymnastics team,but also for the whole Chinese delegation at the Beijing Games.”
The coach owed the team’s success to a series of reforms. The Chinese team used to train a 1ot, but competed less, which led to poor results in international competitions. To improve their ability to compete and to strengthen their psychological power, the Chinese team sent more team members to compete abroad, so they could bring a competitive spirit back to the team. All six gymnasts in the Olympic team final were selected from fierce competition, and they proved themselves today.
1. Before the Beijing Games started,some international media doubted whether ________.
A. Chinese women gymnasts could win the team gold medal
B. He Kexin would fall from the bars during qualification
C. Chinese women gymnasts could make history at the Beijing Games
D. some Chinese women gymnasts were old enough for the Games
2. Which of the following statements is NOT true?
A. The international media’s doubts proved to be true.
B. He Kexin’s fall in the qualification had no bad effect on her performance in the final competition.
C. Chinese women gymnasts’ success at the Beijing Games proved that the reforms did work.
D. Each team is made up of 6 members to compete for the team gold medal in women gymnastics.
3. In the opinion of Lu Shanzhen, the key to achieving success for athletes is to________.
A. practice harder than ever                    B. experience more competitions abroad
C. have strong psychological power                    D. have a competitive spirit
4. The main purpose of the text is to________.
A. tell a story     B. provide evidence           C. give a report            D. compare opinions 
题型:不详难度:| 查看答案

It’s been claimed that playing a musical instrument makes you smarter.
New research suggests that regularly playing a musical instrument changes the shape and power of the brain, and may be used in therapy (疗法) to improve cognitive (认知) skills.
Experts say there is growing evidence that musicians have brains that are structurally and functionally different from those of non-musicians, especially in the areas of the brain used in processing (处理信息)
The parts of the brain that control motor skills, the storage of audio information, hearing and memory become larger and more active when a person learns how to play an instrument and can apparently improve the alertness (警觉) and planning.
Lutz Jancke, a psychologist at the University of Zurich, said, “Leaning to play a musical instrument has great benefits and can increase IQ by seven points in both children and adults.We found that even people over the age of 65, after four or five months of playing an instrument for an hour a week, had strong changes in the brain.” The parts of the brain that control hearing and memory, and the part that controls the hands, among others, all become more active.
“Of course music isn’t the only answer, but I do believe that it should be used in addition to other things.”
Mr.Jancke also said that learning a musical instrument could also make it easier to learn foreign languages and make one more sensitive to understanding the emotions of others.“So not only does this make it easier to pick up other languages and have a better memory of one’s own, we have also seen musicians are able to pick out exactly what others are feeling just by the tones of their voices—sympathy, disappointment, that kind of things.”
He added, “Several studies indeed show that playing music increases memory and language skills, but more research is needed.”
1.What is the passage mainly about?
A.How to use musical instruments.
B.How music affects the brain.
C.How playing music makes people smarter.
D.The development of research into music.
2.Compared with non-musicians, __________.
A.musicians are better at foreign languages
B.musicians are more active in sports
C.musicians have stronger emotions
D.musicians’ brains work differently in processing
3.Which of the following is NOT a benefit of playing an instrument?
A.It makes it easier for one to pick up foreign languages.
B.It allows one to show his feelings more exactly to others.
C.It gives one a better memory in one’s own language.
D.it makes one understand others’ feelings better.
4.From Luz Jancke we lean that _________.
A.playing an instrument benefits children more than adults
B.playing an instrument has no benefits for people over 65
C.some studies show playing music can increase memory
D.he will do more research into brain development and music
题型:不详难度:| 查看答案
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