题目列表(包括答案和解析)
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
You put a great deal of effort into reaching the college of your choice. It’s time to get started. But what’s next? Beginning college can be an exciting but awkward time. Follow these tips to adjust to your new life rapidly and make the most of your college experience.
● To save time and money, use the college’s bus system. Taking the bus to school is quick, easy and free in most college towns. You won’t have to locate or afford a place to park either. It’s also a good way to be environmentally aware.
● Save pennies on books by waiting until class starts. You might not even need all of the recommended books. New textbooks cost an arm and a leg. Try buying used textbooks — it’s a surefire way to save money and serves the purpose as well.
● Do never look at college life as an endless series of parties and social activities. But there is a whole lot more to college if you’re serious about graduating. Having a good college experience is all about balancing work and fun.
● Be aware that your living environment can largely affect your academic success. If the dorm doesn’t suit you, consider living at home with your family or renting your own apartment. The best location for your studies isn’t always your dorm. Find a quiet area, like the library, to do your work. Alternatively, buy some headphones that block out noise.
● Be mindful of your diet. Make healthy food choices and watch what you eat. Avoid foods that are processed or high in sugar. The “freshman 15” is real. Many college students gain at least 15 pounds during their freshmen year.
● While electives (选修课) can be helpful when figuring out your major, you shouldn’t entirely rely on them. Clubs and other organizations exist around. Get involved. Make sure, though, that you still have time to study. Having too much on your plate can hurt your grades.
1.Which of the following ideas can be financially wise?
A. Driving your own car. B. Buying used books.
C. Renting an apartment. D. Attending activities.
2.In the text, freshmen are repeatedly warned against ______.
A. academic failures B. physical problems
C. traffic accidents D. social activities
3.The “freshman 15” tells the fact that some freshmen ______.
A. attend limited activities on campus
B. have little regular physical exercise
C. focus less on their academic work
D. take relaxed attitudes to their diets
4. The underlined phrase “having too much on your plate” probably refers to ______.
A. using too much money for meals
B. eating too many unhealthy foods
C. taking part in too many after-class activities
D. taking an elective that has too many students
Office workers should know that long periods of sitting at your desk may be a killer. Scientists have shown a new threat from this lifestyle that they call “muscular inactivity (肌肉迟钝)”.
Sitting still for long periods of time leads to the buildup of substances (物质) in the blood that are harmful to health. And exercise alone won’t drive them away.
Millions of people spend their days between car,office desk and the sofa in front of the TV. While the bad influences are well rocognized,it has been thought that they can be changed by regular trips to the gym or swimming pool.
Now researchers say that is not enough. In addition to regular exercise,office workers need to keep moving while they work,by making regular trips to the printer,coffee machine or to chat with workmates.
Elin EkblomBak,an expert on health,says research shows long periods of sitting and lack (缺乏) of “whole body muscular movement” are strongly linked to obesity,heart disease and cancer,and a higher risk of death,regardless of (不管) whether they take enough exercise.
“Everyone knows about the health benefits of regular exercise. But what we haven’t realized before is that longperiod sitting down carries an extra risk that cannot be dealt with by taking exercise,” Dr EkblomBak said,adding that sitting still should be recognized as a risk to health.
“It is important to have a fiveminute break from desk work every 45 minutes. Don’t email workmates—walk across the office to give them the message. Take a coffee break or put the printer in the next room. I am a desk worker and I try to do it. It is not difficult but sometimes you get lost in your work and you forget about it.”
However,more studies are needed to confirm the ill effects of sitting for too long and ways of fighting them. But at present they conclude that “keep moving” should be added to the advice to “keep exercising.”
【小题1】Nowadays,many office workers wrongly think that________.
A.long periods of sitting has bad influences on them |
B.regular exercise benefits them after long periods of sitting |
C.they are living a lifestyle called “muscular inactivity” |
D.it’s unfair for them to sit in the office for too long |
A.Chat with workmates often. |
B.Send emails instead of chatting. |
C.Keep moving in the office regularly. |
D.Take more exercise after work. |
A.scientific | B.uncertain | C.unbelievable | D.convincing |
A.A new threat :longperiod sitting |
B.Office workers should keep exercising |
C.Taking exercise benefits a lot |
D.Keep moving,it could save your life |
Vitamin E supplements(补充品),which millions take in the hope of longer, healthier lives, may do more harm than good, researchers reported on Wednesday.?
In fact, people taking high doses(剂量)of vitamin E may in some cases be more likely to die earlier, although the reasons are not clear, said Dr. Edgar Miller of Johns Hopkins University in Baltimore, who led the study.“I think people take vitamin E because they think it is going to make you live longer, but this(study)doesn’t support that.”Miller told reporters.?
Miller and colleagues re?analyzed 19 studies of vitamin E and health between 1993 and 2004. The tests involved more than 136,000 mostly elderly patients in North America, Europe and China. People who took 200 international units of vitamin E a day or more died at a higher rate during the study, which lasted three years, than people who did not take supplements, they told a meeting of the American Heart Association.“It’s about a 5 percent increased risk at 45 years in the tests combined together,”Miller said.“That doesn’t sound like a lot but if you apply it to 25 percent of the (U.S.)adult population taking vitamin E, that is significant.”?
Miller, whose findings are also being published online by the Annals of Internal Medicine, said two?thirds of people who take vitamin E supplements take 400 IU or more.“We don’t think that people need to take vitamin E supplements, which they can get enough from the diet,”he said. Nuts, oils, whole grains and green leafy vegetables are all rich in vitamin E.?
People take vitamin E supplements, hoping that________.?
A.they can lose weight easily?
B.they may live a longer and healthier life?
C.they can get more and more beautiful?
D.they no longer need any medicine
The following statements can give us information about Miller EXCEPT_________.?
A.Miller and his team based their research on 19 cases of vitamin E and health between 1993 and 2004?
B.Miller thinks it unnecessary for people to take vitamin E supplements?
C.Miller supposes it impossible for people to get enough vitamin E from their diets?
D.Miller played an important role in the tests conducted by the researchers
Which of the following contains rich vitamin E??
A.Nuts.
B.Whole grains. ?
C.Green leafy vegetables.
D.All of the above.
What is this text mainly about??
A.It is reported in a study that vitamin E may do more harm than good to people to live longer and get healthier.
B.Dr.Edgar Miller and his colleagues studied many cases of vitamin E and health.?
C.Dr.Edgar Miller advises that people should not depend on vitamin E supplements for longer and healthier lives.
D.People who took 200 international units of vitamin E a day or more died at a higher rate than people who did not take supplements.
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
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