阅读下列短文,从每题所给的四个选项(A、B、C和D)中,选出最佳选项。

Health experts have long known that vitamin D is important for healthy bones and teeth. It may also help to protect the body against diseases such as diabetes and cancer. And now, researchers say vitamin D might help fight brain diseases called dementia (痴呆).

Dementia is a brain disease that damages thinking and memory processes, which scientists call “cognitive (认知) abilities.” Dementia is difficult to treat. Taking care of someone who has dementia is extremely demanding. And the disease is very frightening to sufferers. Chris Roberts suffers from dementia. He says the worst part of living with this disease was getting lost while driving. “The worst thing that I found was getting lost in the car, not just forgetting where I was going— I wouldn’t know where I was.” More than 47 million people around the world suffer from dementia. The World Health Organization reports that 60 percent of them live in low- and middle-income countries.

We get vitamin D from some foods like nuts, lentils (扁豆) and fatty fish. We also get vitamin D from the sun. But that is not dependable. In some parts of the world, there is not enough sunlight to provide enough vitamin D. Also, sunblock prevents the vitamin from entering the body. To add to the problem, the skin’s ability to process vitamin D weakens as a person ages.

Researchers at Rutgers University in New Jersey are exploring the relationship between vitamin D and dementia. The team recently measured vitamin D levels and cognitive ability in older people. Nutritional sciences professor Joshua Miller led the team. He said cognitive abilities differed among the study subjects. He said tests showed that about 60 percent of the group was low in vitamin D.

1.Which of the following is true about vitamin D?

A. Vitamin D can decrease people’s risk of heart diseases.

B. Vitamin D helps the body fight against cancer.

C. Vitamin D is mainly obtained from the sun.

D. The need for Vitamin D decreases as people age.

2.What does the underlined word “demanding” mean in Paragraph 2?

A. Boring but rewarding.

B. Disturbing and frightening.

C. Disgusting and stressful.

D. Hard and tiresome.

3.What does Paragraph 3 mainly talk about?

A. How vitamin D affects people’s health.

B. Where people get vitamin D.

C. Whether sunlight can produce vitamin D.

D. Why people’s age influences the production of vitamin D.

4.Where can we most probably read the passage?

A. In a travel brochure.

B. In a literature magazine.

C. In a science journal.

D. In a commercial advertisement.

Norah has a cottage on a cliff above a big bay. In winter it could be very nasty﹙令人讨厌的﹚ because of strong winds and sea spray. In fact, when a gale﹙风﹚ was blowing, Norah and her husband got used to sleeping in a small room downstairs, because their bedroom upstairs, which faced the gales, had a very big window, and they were afraid that an extra violent gust ﹙强风﹚might break it and blow pieces of broken glass over them.

Also, the salt spray from the sea put an end to many of the colorful plants Norah planted in the garden. She tried putting up a fence to protect them, but the wind just hit it, went up over the top and then down the other side, so in the end she filled the garden with trees and bushes that liked salt.

But most of the summer Norah enjoyed her cottage and garden very much. At weekends she could sit out-of-doors in the sun, looking at the beautiful view, with interesting ships and boats passing by, and she could very easily cycle down to the sea for a swim.

Now, Norah and her husband had plenty of friends and relations. In the summer most of them used to come to enjoy the beautiful place, and in the end it really became quite annoying for Norah and her husband. When they were at home, they found friends and relations arriving, expecting to be given unlimited drinks and meals, and to sit in the sun for hours, talking as if Norah and her husband had nothing else to do but entertain and listen to them.

This went on for several years. Norah did not wish to appear rude by refusing to let her friends and relations in, but on the other hand, she was getting tired every summer.

Then one day Norah was complaining about this to her hairdresser while she was doing her hair. “You’re disturbed by too many uninvited guests, are you?” said the hairdresser. “Why don’t you try my way of escaping?”

“What’s that?” asked Norah.

“Well,” the hairdresser answered, “when the bell rings, I put on my coat and take my shopping bag. If it’s someone I don’t want to see, I say innocently, ‘I’m sorry, but I’ve got to go out. But…’”

1.We can infer that .

A. a lot of friends came to visit them in winter

B. few friends came to visit them in winter.

C. Friends came to visit them only for drinks and meals

D. Norah was a good cook

2.The best title for the passage might be .

A. A Good Place of Enjoying the Sea

B. A Warm-hearted Couple

C. A Clever Way of Escaping

D. A Visit to Norah

3.What the hairdresser is likely to continue to say in the end is “

A. If I am tired, I say, ‘Sorry, can you come next time?’

B. If it’s someone I like to see, I say, ‘How lucky! I’ve just come in!’

C. If it’s someone I like to see, I say, ‘How happy to see you! I was going shopping, but now I’ve changed my mind.’

D. If it is fine that day, I say, ‘I am tired, but I’ll show you around the place, anyhow.’

Animals can be extremely protective of their young. But when hard times call, animal fathers can be really a danger to their own kids.

Daddy Lion

A combination of laziness, pride, cruelty and anger makes the lion one of the most fearsome and worst dads of the animal kingdom. When not walking proudly across the jungle, the father lion just lazes around under the sun, or waits for one of its lioness(母狮子) partners to bring back food. Once the lioness gets home the food, the lion eats up most of it, and leaves little or nothing at all for the kids. The father doesn’t even train the kids for hunting and surviving, it is the lioness who teaches them how to fend for themselves.

The Polar Father

Cute, pure and soft. Protective of young ones and family? Sure. But what makes the polar bears one of the worst dads of the animal kingdom? They don’t take care of the young ones, they won’t take up the responsibility of feeding them, they won’t take care of them like a father should. They just leave that to the mother bear.

The Assassin Bug(猎蝽)

Size matters, you say? This little bug would eat its own eggs to stay strong and fulfill its hunger needs. The male assassin bug is actually responsible for guarding the eggs. The female assassin bug lays eggs in large numbers. The male bug eats the weaker eggs.

Daddy Bass(岩鲈鱼)

Usually, water calms you down. Not so much for this underwater species. The male bass is known to eat up eggs from its own spawn. It guards the spawn(子,卵) laid by its female partner. However, when hungry and unable to hunt for food, the father won’t think twice before eating up the eggs.

And do you think your father was strict and hard? After reading this article, I’m sure you think your dad is the best in the whole wide world for not eating you up!

1.The animal fathers mentioned in this article ________.

A. are protective of their young

B. are respected by their young

C. are rather bad to their kids

D. are dangerous to their whole family

2.The underlined phrase “fend for” (Para 2) probably means ________.

A. fight for B. learn from

C. look after D. look for

3.The lion and the polar bears are similar in ________.

A. searching food all by themselves

B. letting the mothers take care of the kids

C. letting the mothers eat up the food

D. wanting to train the kids to be cruel

4.Which can best describe the male assassin bug?

A. Weak but kind. B. Responsible and careful.

C. Strong and cruel. D. Little but cruel.

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网