题目内容
Violence and traffic accidents can leave people with terrible physical and emotional scars. Often the
experiences in nightmares appear repeatedly.
Now American researchers think they are close to developing a pill, which will help people forget
bad memories. The pill is designed to be taken immediately after a frightening experience. They hope it
might reduce, or possibly wipe out, the effect of painful memories.
In November, experts tested a drug on people in the US and France. The drug stops the body
releasing chemicals that fix memories in the brain. So far, the research has suggested that only the
emotional effects of memories may be reduced, not that the memories are wiped out. They are not
sure to what degree people's memories are affected.
The research has caused a lot of argument. Some think it is a bad idea, while others support it.
Supporters say it could lead to pills that prevent or treat soldiers' troubling memories after war. They
say that there are many people who suffer from terrible memories.
"Some memories can ruin people's lives. They come back to you when you don't want to have them
in a daydream or nightmare. They usually come with very painful emotions," said Roger Pitman, a
professor of psychiatry at Harvard Medical School. "This could relieve a lot of that suffering."
But those who are against the research say that maybe the pills can change people's memories and
changing memories is very dangerous because memories give us our identity. They also help us all avoid
the mistakes of the past.
"All of us can think of bad events in our lives that were terrible at the time but make us who we are.
I'm not sure we want to wipe those memories out." said Rebecca Dresser, a medical ethicist (伦理学家).
B. a new research on the pill
C. an argument about the research on the pill
D. a way of wiping out painful memories
B. stop people remembering bad experiences
C. wipe out the emotional effects of memories
D. prevent body producing certain chemicals
B. the pill will certainly stop people's emotional memories
C. taking the pill will do harm to people's physical health
D. the pill has already been produced and used by the public America
B. people want to get rid of bad memories.
C. experiencing bad events makes us different from others.
D. the pill will reduce people's sufferings from bad memories.
B. a textbook
C. a medical magazine
D. a science fiction
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Write NO MORE THAN THREE WORDS for each answer. With an obese (very fat) or overweight population of 66% percent of adults, teaching your kids healthy eating habits is one of the most important things you can do for them as a parent. Most parents and children claim that breakfast is part of their everyday routines. But for many more than you might think, it's not. Children who eat breakfast have higher math grades, have improved reading scores and basically perform better in school. They also tend to have healthier bodies in general, with better-controlled weight levels. When you take them to the grocery store with you, it's doubtless that your children will request the most sugar-filled, fat-injected products on the shelf. But these are not the ones to have in your home-you should avoid buying them at all. Be sure your kids have healthy snacks. Yes, kids like white bread. But any kid can get used to the taste of whole grains. It just takes a little practice. Look for white bread, and add other whole grains into their diet. Start toasting their sandwiches. When it's toasted, it'll be that much harder for them to tell the difference in taste. It's simple, it's true, and it's something you already know: kids who get plenty of exercise are healthier kids. Set limits on the amount of time your child may spend in front of the television or computer screen. Sign them up for plenty of sports and outdoor activities. And best of all, get involved in sports and exercise with them. One of the best things you can do to establish healthy eating habits in your kids is to have them yourself. You can tell your kids every day to eat healthy foods, but if you don't do the same thing yourself, the lesson will never stick.
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Write NO MORE THAN THREE WORDS for each answer. Tomatoes are the world's most popular fruit rich in nutrition like Vitamin A, C, fibre and lycopene (番茄红素). Researchers have found that consuming lycopene helps in preventing cancer. Tomato also helps in keeping the skin healthy and young by protecting from harmful rays. Since lycopene is present in the cellular wall of tomato, it is better to consume cooked tomato to have higher concentration of lycopene. So tomatoes are a wonderful fruit. Then how to grow tomatoes? First, there should be regular and even watering in the fields where tomatoes grow. You can also add fertilizer to have better results. Plant the tomato plants with enough space(for example 2 to 3 inch space)between each other to lessen spreading of disease and pests and help the fruits get enough sunlight. Provide support like pole when the plants grow up to prevent from disease and to increase the crop product. In order to make your tomatoes grow well, you should take some useful tips. For example, choose variety based on the season and soil type that you are growing. Planting site should have enough sunlight to have more fruits. Prune(修剪)the tomato plants if necessary to maintain a manageable size. Check tomato plants regularly for any kind of pests and diseases. To people's regret, tomatoes possibly suffer from some diseases during their growth. So you must try your best to prevent them. Soil should be free from debris(残骸)of earlier plant remains and should be treated first before tomato plantation like solarizing(晒) to prevent from pests. It is always better to choose resistant plant varieties and follow crop rotation(轮作)as far as possible.
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B. collect
C. get rid of
D. place in suitable positions
B. six buildings are heated by the heat system on the Johnstown campus
C. the heat is supplied by human bodies, other heat-omitting objects
D. the heat from human bodies, other heat-omitting objects is only used in cold winter
B. a thin male who studies hard
C. a thin female who does not study hard
D. a large male who studies hard
B. objective
C. serious
D. humorous