While sweet treats can be hard to resist, the...

While sweet treats can be hard to resist, the World Health Organization(WHO) has set new guidelines for people around the world. The guidelines, released on Wednesday, advise that both adults and children cut back on their sugar intake(摄取量) to stay healthy.

In a statement, Francesco Branca, director of the WHO’s nutrition department, said there is evidence that reducing daily sugar intake reduces the risk of being overweight and tooth decay(腐烂).

The guidelines do not apply to the sugars in fresh fruit and vegetables or those that are naturally present in milk. According to the WHO, there is no reported evidence of negative effects of consuming those sugars. Instead, the new guidelines focus on “added” or “free” sugars. These include sugars that are added to processed foods and drinks such as candy and soft drinks.

Added sugars are sometimes described as “ hidden” sugars because they exist in foods we might not think of as sweets, such as honey and ketchup(番茄酱). Health experts advise that consumers look at ingredients on food packages to help make better-informed decisions.

The WHO recommends that people in the United States, Europe and other Western societies should cut their average sugar intake by about two-thirds, or down to just 10% of their overall calories. For developing countries, where dental care is less advanced, the WHO recommends that sugar intake be reduced to 5%.

Scientist Kieran Clarke, of the University of Oxford, notes that for those people who can’t shake their love for sweets, getting more exercise is a good solution. “If you get enough exercise, you can eat almost anything,” she said “But it’s very hard to avoid large amounts of sugar unless all you’re eating is fruit and vegetables.”

1.What can we learn from the guidelines released by the World Health Organization?

A. The production of candies should be forbidden.

B. There is a connection between sugar intake and bad teeth.

C. Fruit and vegetables contain a lot of sugar.

D. People should cut down on sugar intake for the sake of their health.

2.To what level should people in developing countries cut down their sugar intake, according to the WHO?

A. 10%.            B. 15%.            C. 5%.            D. 30%.

3.We can learn from the text that ________.

A. added sugar isn’t marked on food packages

B. we should drink as little milk as possible as it contains sugar

C. soft drinks don’t contain added sugar

D. the less exercise you do, the fewer sweet things you should eat

高二英语阅读理解中等难度题查看答案及解析

It’s hard to be a bird in a world which is in the charge of mankind.

You can hardly hear yourself sing, let alone hear the songs of your friends… and worst of all, you can’t hear a predator(捕食者). Noise is almost everywhere, especially noise from traffic.

Researchers have tried to study the influence of road noise on animals by looking at animals living near noisy roads.

“We figured out a way to have just the noise without any of the other effects of the road, and to do that we put many speakers in a forest where there was no road,” said Chris McClure, a biologist at Boise State University and The Peregrine Fund. He and his team carried out their experiment at a place popular with birds in Idaho as they fly south for the winter.

While the noise kept lots of birds away, some remained. But they had trouble putting on enough weight to support them in the next part of their migratory journey.

“They have to take food but they also have to avoid getting eaten by a predator. But these two things can’t be done at the same time because to eat, they have to look down, which means they aren’t looking at predators.”

And when it’s too loud, they can’t hear the alarm calls of other birds. So they have to waste time looking for predators instead of searching for food.

By 2050, it’s thought that enough new roads will be built to circle the planet more than 600 times. But there’s an easy solution to the noise problem—“Lowering speed limits does a lot.”

So next time you’re driving through nature, just slow down a little. It’s safer for you and the wildlife. And you can enjoy the view a little longer.

1.Who does the word “you” in Para 2 refer to?

A.A driver. B.A predator. C.A researcher. D.A bird.

2.Why did the researchers do the experiment in a forest without roads?

A.To prevent birds from being hit by cars.

B.To separate noise from other effects of the road.

C.To test a larger number of birds.

D.To put as many speakers as possible.

3.Why can’t birds put on enough weight with much noise around?

A.They can’t concentrate on looking for food.

B.They have to fly south for the winter.

C.They can’t hear the alarm calls.

D.They feel afraid of the noise.

4.What is advised to do to protect birds from the noise problem?

A.To build enough new roads.

B.To carry out more experiments.

C.To enjoy the view a little longer.

D.To drive slowly through nature.

高二英语阅读理解中等难度题查看答案及解析

The desire to sleep late can be almost too much to resist at weekends. This Saturday morning, though, there was something important enough to get me up early. Yawning widely, I got out of bed and put on some old jeans and a T-shirt. After combing the house for work gloves, my dad came up with a pair my mother used for gardening and took them along.

We hopped(跳) in the car and headed into Boston. Guided by my directions, Dad was somehow-able to get us to our destination: a row of two-story houses. They were in the process of being built,mostly by volunteers like us.

After grabbing a huge leather tool belt, I met the people I would be working with. Virginia, James and Wilbur were all more than twice my age but treated me like a peer(同龄人). We got to work nailing the frames of walls. By lunch break I had hit what seemed like every tough spot in the whole house, and pried(撬起) countless bent nails. The rest of the day went by quickly as I gained efficiency with my hammer. Soon it was time to pack up.

As l was leaving, a woman came into the house. She saw the progress we'd made upstairs and started looking around the rooms. Then I realized who the woman was-her family would be living in the house. As she walked through each room, I could see her planning where furniture would go.

Even though I had only been there one short day out of weeks of construction. I felt a great sense of accomplishment. When these houses finished, six families would have nice homes.

Thanks go to Habitat for Humanity for giving me such an opportunity to make a difference in others' lives. Habitat for Humanity is an international organization. Local information can be found by visiting www: habitat. org. You are welcome to join and be part of the change you want to see in your community.

1.What is the important thing the author mentioned in Paragraph l?

A.Sleeping at weekends.

B.Building some houses.

C.Gardening with his mother.

D.Finding his father a pair of work gloves.

2.What can be learned about the author from Paragraph 3?

A.He worked with people'of his age. B.He was an awkward nailer at first.

C.He finished work before lunch break. D.He learned a lot from his workmates.

3.Which of the following words can best describe the author?

A.Caring. B.Brave. C.Ambitious. D.Sensitive.

4.What does the author intend to do in the last paragraph?

A.Call more people to volunteer.

B.Stress the importance of labor work.

C.Advertise a local nonprofit organization.

D.Introduce the benefits of joining Habitat for Humanity.

高二英语阅读理解简单题查看答案及解析

Susan had a sweet tooth and couldn’t resist _____ by the candy shop on her way home.

A．to stop           B．stopping          C．being stopped      D．stopped

高二英语单项填空中等难度题查看答案及解析

Due to the widespread ______ of this medical technology, more diseases can be discovered and treated at an early stage.

A. presentation    　　 B. appreciation　　     C．qualification　　     D．application

高二英语单项填空中等难度题查看答案及解析

Due to the widespread ________ of this medical technology, more diseases can be discovered and treated at an early stage.

A. presentation　　 B. application

C. qualification　　 D. appreciation

高二英语单项填空简单题查看答案及解析

Due to the widespread________ of this medical technology, more diseases can be discovered and treated at an early stage.

A．presentation                           B．application

C．qualification                           D．appreciation

高二英语单项填空中等难度题查看答案及解析

When you are little, it’s not hard to believe you can change the world. I remember my enthusiasm when, at the age of 12, I addressed（向……演讲） the people at the Rio Earth Summit. “ I am only a child,” I told them.” Yet I know that if all the money spent on war was spent on ending poverty and finding environmental answers, what a wonderful place this world would be. At school you teach us not to fight with others, to work things out, to respect others, to clean up our mess, not to hurt other creatures, to share, not to be greedy. Then why do you go out and do the things you tell us not to do. You grown-ups say you love us, but I challenge you, please, to make your actions reflect your words.”

I spoke for six minutes and received a standing ovation. Some of the people even cried. I thought that maybe I had reached some of them, that my speech might actually spur（刺激）action. Now, ten years from Rio, after I’ve sat through many more conferences, I’m not sure what has been achieved. My confidence in the people in power and in the power of an individual’s voice to reach them has been deeply shaken.

When I was little, the world was simple. But as a young adult, I’m learning that as we have to make choices—educa-tion, career, lifestyle—life gets more and more complicated. We are beginning to feel pressure to produce and be successful. We are taught that economic growth is progress, but we aren’t taught how to seek a happy, healthy way of living. And we are learning that what we wanted for the future when we were 12 was idealistic and naive（天真的）.

Today I’m no longer a child, but I’m worried about what kind of environment my children will grow up in. I know change is possible, because I am changing, still figuring out what I think. I am still deciding how to live my life. The challenges are great, but if we accept individual responsibility and make choices, we will rise to the challenges, and we will become part of the positive tide of the change. I hope this goal will be met through our common efforts. Thank you all.

1.The purpose of what the speaker said at the age of 12 was to________.

A．end poverty and make schools beautiful

B．find environmental answers and show off

C．focus people’s attention on some social problems

D．find a wonderful place and clean it up

2.What does the underlined word “ovation”in the second paragraph refer to?

A．A long period of laughing.            B．A cold and unfriendly welcome.

C．An expression used for greeting.

D．Great applause or cheering.

3.The information in the text is presented mainly through________.

A．question and answer     B．a personal lecture

C．cause and effect         D．listing steps in a process

4.Which of the following best describes the speaker?

A．He is an experienced educator.

B．He is an impolite man.

C．He is a man of great worries.

D．He is a man of social responsibility.

高二英语阅读理解中等难度题查看答案及解析

She is too fat, but she can’t ________ sweets.

A. remove         B. resist       C. reject       D. object

高二英语单项填空简单题查看答案及解析

She is too fat, but she can’t ________ sweets.

高二英语单项填空中等难度题查看答案及解析