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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.
查看习题详情和答案>>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.?
- 1.
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
- A.
- 2.
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
- A.
- 3.
Which of the following contains rich vitamin E??
- A.Nuts.
- B.Whole grains.?
- C.Green leafy vegetables.
- D.All of the above.
- A.
- 4.
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.
- A.
themselves when u________ e-mail. Researchers from Open 1._____________
University in Britain have f________ in a recent study that there 2._____________
are good reasons ________ this. The researchers asked 83 pairs 3._____________
of students, all strangers to one another, to s________ a problem. 4._____________
They had to discuss this question: If ________(仅仅) five people 5._____________
in the world could be saved from a world disaster, w________ should 6._____________
they be? The pairs of students had to talk over the problem ________ 7._____________
face to face or by computers. Dr. Johnson said, "They told their________
(搭档) four times as much about themselves when they talked 8._____________
over the Internet ________ when they talked face to face. When the 9._____________
computers were fitted with cameras so that students could see eachother,
this ________(限制) the personal side of the conversation." 10._____________
“Some of the worst human tragedies happening in the world today go on because we don't really see them．We rarely make eye communication with people who are suffering，so we act sometimes as if the people don't exist．”
The speaker is Bill Gates，the world's richest man．At a gathering in Seattle，he is talking not as the Microsoft chairman but as a partner in a strong personal duty．For Gates and his wife，Melinda，making less inequality in global health and domestic education has become a life's goal．
Having set up their foundation with close to $29 billion，the Gateses are on track to become history's greatest philanthropists（慈善家）．But they do more than just give money out．Experts praise the couple for their wisdom and their ability to gather others：“Even with this great contribution，”says Susan Schwab，president and CEO of the University System of Maryland Foundation，“they know they can't solve these problems alone．”
Their devotion came from different sources．For Melinda，it was a vacation to Zaire．Where she was struck by meeting women in being extremely poor．For Bill，it was reading that millions of children die every year from preventable diseases．“Melinda and I had assumed that if there were medicines and treatments that could save lives，government would be doing everything they could to get them to…people，”Bill said at the World Health Assembly in Geneva．“We couldn't escape the cruel conclusion that…some lives are seen as worth saving and others are not．”
From shock came action．They focused on the simple message that one life is worth no more or less than another．Frances Hesselbein，chairman of the non-profit Leader to Leader Institute, says：“Sometimes people give in a very fair way，but there is something about what they are doing…that is the opposite of that．It is very difficult to understand and very personal．”
Both Gateses read scientific books and travel extensively in developing countries．So far， the Gateses have devoted $9 billion to global health．They share a sense of urgency．“We're not doing enough in developing countries to give out the treatments and practices we know are effective in fighting diseases such as malaria，tuberculosis and HIV，”the couple told U．S．News．
60．Which of the following does Bill Gates think is not correct?
A．We act sometimes as if the people suffering don't exist．
B．They can't solve these problems alone．
C．Some lives are worth saving and others are not．
D．Government would be doing everything to help people．
61．What made Gates’ wife also a philanthropist according to the passage?
A．She was attacked and was saved while traveling to
B．She was impressed with the poverty of people in
C．She read that millions of children die every year from preventable diseases.
D．She and her husband have set up their foundation with close to $29 billion.
62．What do we know about the projects supported by Gates' Foundation?
A．They have had great influence on global health．
B．They are limited to the areas in Africa．
C．They only focus on medical treatment．
D．They are carried out without government's support．
63．The passage is intended to ___________．
A．praise Bill and Melinda Gates for their kindness
B．raise more money for the foundation
C．explain to people how the projects work
D．convince more people of helping others
查看习题详情和答案>>MANCHESTER, England ― Here's some good news that vegetarians (素食者) can really sink their teeth into: Researchers in UMA Group have developed genetically (转基因地) engineered fruit trees that produce real meat!
Fruit from the new Meat Trees, developed by British scientists using the gene technology, is closely like ordinary grape-fruit. But when you cut the fruit open, inside is fresh beef!
"Our trees may sound like something out of a science fiction movie, but it's really true," declares Dr. Vincent, director of the UMA Group, which created the amazing trees. "Vegetarians have been complaining for years that in spite of their firm belief against eating meat, they still desire the taste of meat once in a while. Now they can have their cake and eat it too."
Although it's taken 12 years to develop the trees, the idea is simple. "We take the genes from cattle and put them into the cells (细胞) of grape-fruit trees," Dr. Vincent says. "When the seeds grow into trees, they produce meat instead of ordinary fruit. You get the taste ― even the smell."
Those who've tried the meat agree it tastes like the real thing. "I was a bit unwilling to believe at first when I sank my teeth into a hamburger after they told me it grew on a tree," says Londoner Mark, who took part in a taste-test. "But it was juicy and delicious ─ nothing leafy about it at all."
Meat Tree products could be on the market in
50. According to what Dr. Vincent said, we know that ______.
A. vegetarians like to make a cake and enjoy it later
B. the idea of Meat Trees came from a science fiction movie
C. vegetarians can eat meat from the new trees
D. vegetarians can taste and even smell fruit from Meat Trees
51. The passage tells us that ______.
A. Meat Tree products are sure to be popular with vegetarians
B. most vegetarians like the taste of fruit from Meat Trees
C. you can buy fruit from Meat Trees in the supermarket in
D. it's hard to tell fruit on Meat Trees from ordinary fruit without cutting in
52. In paragraph 5, the author took Mark for example to ______.
A. show he is one of the devoted vegetarians
B. prove the real taste of fruit from Meat Trees
C. tell how a vegetarian eats the new fruit
D. to explain how the taste-test is given
53. By writing this passage, the author wants to ______.
A. show readers a new achievement in gene technology
B. encourage people to eat fruit from Meat Trees
C. explain how meat is produced on trees
D. tell vegetarians good news about Meat Trees
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