About 80% of people do not get enough vitamin (维生素) D every day. But this vitamin is very important for your health.
Vitamin D is really important for our bones (骨骼). When we are young, vitamin D builds up our bones and makes them strong. When we are older, we still need vitamin D to keep our bones strong. Our bodies keep the vitamin D in our bones and teeth. Then we lose vitamin D as we work and exercise during the day. But our bodies can’t make vitamin D. So we have to get it from outside of our bodies.
Where can a person get this very important vitamin? Vitamin D is in foods like fish and eggs. Sometimes, vitamin D is added to bread, milk, and orange juice. Food is not the only way our bodies can get vitamin D. The sun also gives us vitamin D. If we want to be healthy, we should spend some time in the sun each day. Too much sun is not good for you, but about 15 minutes a day is usually enough. And we should be sure to eat foods that are rich in vitamin D, too.
1. The writer says that vitamin D ________.| A．makes our bones strong | B．keeps our hair clean |
| C．is not necessary for our teeth | D．is harmful to our hearts |
| A．It makes us popular. | B．It helps us eat more food. |
| C．Our bodies can’t make vitamin D. | D．The more vitamin D, the better. |
| A．eating fish | B．watching TV | C．working hard | D．having a sleep |
| A．About 15 minutes. | B．About 45 minutes. | C．About 1 hour. | D．About 2 hours. |
| A．what vitamin D is | B．where we can get vitamin D |
| C．how much vitamin D we need | D．why people don’t like vitamin D |
相似题推荐
【推荐1】In our daily life, we often have such an experience: When we want to eat, being busy, we fight with the hunger. But when we’ve been hungry for a long time, we find us no longer hungry. Why does the sense of hunger go away even if we don’t eat?
Why are people hungry? From a scientific point of view, the food we eat is changed into glucose(葡萄糖) for energy, and we feel hungry because we don’t have enough sugar. Our bodies can feel how much glucose there is in the blood. When there is not enough glucose, a person feels hungry. Hunger is not caused by having less food in the stomach, but the changes in glucose levels. So when you’re hungry, you don’t have to have meals.
When we have been hungry for a long time, why aren’t we hungry? In fact, the spare glucose can be stored. When we can’t eat for some reasons, our body will change these stored sugar into energy. When it arrives at a certain stage, our body will give us a message: the glucose is enough. So we don’t feel hungry anymore.
Is it OK not to eat when you’ve been hungry for a long time? No. It is harmful to the human body. When the stored energy is used up, the body breaks down fat(脂肪) to provide itself with energy. During this process, the person will feel dizzy. If worse, the protein(蛋白质) which is very important to the body also starts to break down, and we are in danger. If the worst, we may lose our lives.
For busy people, take some sweets with you on rainy days. If you have been hungry for too long, you mustn’t give up eating! Start with a piece of candy or some soup.
1. What makes people hungry according to the passage?| A．There is less food in our stomach. | B．People take too much exercise. |
| C．People don’t eat on time because of being busy. | D．The glucose in our body is not enough. |
| A．Because we have got used to being hungry. |
| B．Because our body has its own ways to feed itself. |
| C．Because there is something wrong with our body. |
| D．Because our body loses the ability to feel hunger. |
| A．饥饿的 | B．沮丧的 | C．疯狂的 | D．眩晕的 |
(①=Paragraph 1, ②= Paragraph 2, ...)
A． | B． | C． | D． |
【推荐2】Let’s suppose it is a common day of 2060. Of course, things have changed and life is very different.
Trips to the Moon are being made every day. Taking a holiday on the Moon today is as easy as taking a holiday in Europe in the 2010’s. There are many scenic spots(风景胜地) on the Moon. And many hotels have been built. In order that everyone can enjoy the beautiful scenery on the Moon, every room has at least one picture window. Everything imaginable is provided for entertainment of the young and old.
What are people eating now? People are still eating food. But many foods now come in the form of pills, and the food that goes into the pills comes mainly from green plants.
Because of the rapid increase in population, most of the Earth’s surface has to be filled. The deserts are irrigated with water and crops are no longer eaten by pests(害虫). The harvest is always good. Farming, of course, is very highly developed. Very few people have to work on the farm. It is possible to run the farm by just using a few computers.
People are now largely vegetarians, and they eat only bread, vegetables, fruit and so on and they don’t eat meat or fish. You see, as the number of people increases, the number of animals decreases. So people have to be vegetarians. We are healthier both in our bodies and in our minds, and we know how to deal with all kinds of illnesses. No one has to be ill any more.
Such would be our life in 2060.
1. What will be on the Moon in 2060 according to the passage?| A．Many green plants. | B．Many wild animals. |
| C．Many interesting places. | D．Many aliens. |
| A．冲刷 | B．灌溉 | C．淹没 | D．流失 |
| A．People only eat food in the form of pills. |
| B．People don’t have plenty of crops. |
| C．People run the farms by using high technology. |
| D．People always go to see doctors. |
| A．Because they want to be healthier. |
| B．Because vegetables can make the patients well. |
| C．Because there will be more people and fewer animals. |
| D．Because there will be more pollution. |
【推荐3】Sitting in front of the television may be relaxing, but spending too much time in front of it may take years off your life.
Australian researchers collected information from more than 11,000 people over the age of 25. The study found that if people watched too much TV, they would live a shorter life. If people watched over 6 hours of TV a day, they would live about 4.8 years less than those who didn’t watch any television. That means, if you watch an hour of TV, you will lose 22 minutes of life. The longer time you watch TV, the less exercise you do. And it will be possible for you to have heart problems.
Lennert Veerman is the main writer of the study. He thinks that the habit of sitting and watching TV for a long time can make their life shorter, even when people have a good eating habit. “Doctors should ask their patients about how long they watch TV.” Veerman suggests, “This may be a better way than just asking them to get more exercise or have a healthy eating habit.”
Veerman advises people to turn off the TV and get off the sofa to get some exercise. Even light exercise can make you healthier.
1. How old are the people in the study?| A．About 25 years old. | B．Over 25 years old. |
| C．Between 22 to 25 years old. | D．Younger than 25. |
| A．老人 | B．护士 | C．路人 | D．病人 |
| A．22 minutes | B．4.8 hours | C．1 hour | D．6 hours |
| A．Sitting sofa longer. | B．Watching less TV. |
| C．Having a good eating habit. | D．Making life better. |
| A．a magazine | B．a guidebook | C．a notice | D．a story book |
【推荐1】Electives (选修课) are always popular with students because they offer the chance to learn something exciting, and they’re a welcome break from regular courses like math and physics. Here are just a few of the exciting electives lucky teenagers can take in some of China’s middle schools.
Self-defense (防卫) skills A school from Chongqing  The school offers a self-defense course-just for girls. Those who attend the lessons have the chance to study basic self-protection skills in a one-on-one practice. They learn how to get away when they need to and defend themselves against attacks. “I feel safer by myself now,” said Zhang Yi, 15, a girl student. | Pottery A school from Tianjin  The famous pottery scene in a movie called Ghost is a lasting memory for many movie-goers. Young artists at the school love to get their hands dirty creating beautiful pieces. Students learn how to design and make various clay projects. At the end, they have the skills to make their own clay bowls, cups, vases and pots. |
Horse riding A school from Beijing  Equestrians (马术) can look pretty cool, can’t they? Teenagers at this school can now choose a course in riding skills. They’re taught to communicate with their horses and how to use reins (缰绳).To ride a horse in the proper way, a student must hold the head forward and keep his back straight. Students come away from this elective not only knowing how to ride a horse gracefully, but also physically fitter! | Couplets(对联) A school from Nanjing  How many of you can write a couplet? This old literary (文学的) form is slowly disappearing, but Chinese culture lovers at the school are trying to make it alive. For their elective, teenagers study old couplets and try to rhyme (押韵) their own lines. Many of this year’s students can’t wait for the Spring Festival, when they’ll be able to show off their new skills. |
1. Which elective course is especially designed for girl students?
| A．Pottery. | B．Couplets. | C．Self-defense skills. | D．Horse riding. |
| A．Seven. | B．Six. | C．Five. | D．Four. |
| A．Both of the electives enable students to become fitter, stronger and more confident. |
| B．Both of the electives enable students to know how to ride a horse gracefully. |
| C．Both of the electives enable students to communicate with their horses and how to use reins. |
| D．Both of the electives enable students to learn how to get away when they need to and defend themselves Against attacks. |
| A．Girls who take self-defense skills electives may feel safer. |
| B．Math and physics are electives in middle schools of China. |
| C．When students take electives, they can take a break from schoolwork. |
| D．The famous pottery scene in a movie called Ghost is a lasting memory for many movie-goers. |
| A．They can make the disappearing skill alive. |
| B．They can learn the traditional way of writing couplets. |
| C．They can try creating new couplets in the coming Spring Festival and show the beauty of traditional Chinese skill. |
| D．They can master the skill to have their own clay bowls, cups, vases and pots. |
【推荐2】Being a tourist means you get to learn about different cultures, people, landscapes and food, but when you’re visiting another country, it’s your duty to be a good tourist. Here are some tips.
★Do Your Research
First, learn key phrases or words in the language of the country you’re going to. When you travel to a different country, it’s better that you are able to communicate with people. Second, do research on the country’s customs and traditions. Also, you will want to find out what the local clothing looks like so you can dress properly.
★Respect the Country You’re Visiting
Firstly, respect (尊重) the wildlife and don’t feed animals. The animals in the country you’re visiting may be different from your local wildlife. Secondly, don’t throw away rubbish. No one wants to see rubbish. If you can’t find a waste bin close by, just keep the rubbish on you until you find one.
★Engage in the Local Culture
Even if you don’t understand the native language when travelling abroad, it’s important that you engage in (参与) the local culture to enjoy your travelling. This may not mean taking part in a conversation. It may be doing business with a local shop owner, or celebrating local traditions.
根据语篇内容，选择最佳选项。
1. What does the underlined word “landscapes” mean in Chinese?
| A．人文 | B．风景 | C．地理 |
| A．Three. | B．Four. | C．Five. |
| A．Language. | B．Customs. | C．Language and customs. |
| A．Feed animals if they are hungry. |
| B．Throw away your things as you like. |
| C．Keep your rubbish till you see a waste bin. |
| A．Learning different cultures |
| B．Tips to visit another country |
| C．Enjoying your travelling |
【推荐3】Idioms can be a problem for language learners. They often seem to make no sense at all. For example, imagine your English friend Sam tells you his math exam was “a piece of cake”. Do you imagine him at school, sitting in front of a sweet dessert with nothing but a pen to eat it with? In fact, he’s saying that the exam was really easy. It’s important to learn useful English idioms, and knowing how they came into being helps us to remember them. Here are stories of three English idioms.
If you ask a friend to hang out, you might hear, “Sorry, I can’t tonight. I’m feeling a little under the weather.” It may sound like rain is coming, but really, it means that your friend feels sick. This expression came from sailors, who often got seasick when bad weather shook the ship from side to side. The sailors went down to the bottom part of the ship, away from the storm and where the ship’s rocking was gentler.
If you have a difficult roommate, you might say, “My roommate has loud parties every night, but last night was the last straw. They played music till 5 a.m.! I’m moving out.” “The last straw” is a final problem that makes someone take action. This expression is a short form of the phrase “the straw that broke the camel’s back”. The idea is that even though a single piece of straw is very light, many pieces added together will be too heavy for the camel to carry.
Have you ever asked someone if they know something and they reply, “That rings a bell.”? They are not hearing music! They mean that what you’re saying sounds familiar, and they think they’ve heard it before. This idiom comes from the fact that bells are used to remind people of many things. Traditionally, bells would ring for an important event, like a wedding. School bells tell you that class is starting, and even the alarm chime on your phone reminds you that it’s time to get up.
1. Why does the author use the example “a piece of cake” in the first paragraph?| A．To tell us he has an English friend Sam. |
| B．To tell us how to have a piece of cake at school. |
| C．To say that the maths exam was really easy for Sam. |
| D．To tell us the importance of learning useful English idioms. |
| A．It’s a piece of cake. | B．I’m under the weather. |
| C．This is the last straw. | D．That rings a bell. |
A． | B． | C． | D． |
| A．In National Geography. | B．In Science. |
| C．In English Learning. | D．In Business. |
