“An apple a day keeps the doctor away.” Similarly, if we drink a little more water every day, we may find that we need to go to the doctor less often. A healthy diet is made up of water and different kinds of foods. We know that healthy foods like fruits, vegetables and fish, are important as they offer energy and fiber, without giving us much fat and sugar. But why is water important?
The human body needs water to survive. Water is important as it carries poisons and waste out of our bodies. However, doctors advise us to drink plenty of water, much more than the small amount we need to stay alive.
Some doctors believe that water is important for health in all kinds of ways. They believe that many illnesses and health problems appear as a result of dehydration—a lack of water. Most people are dehydrated at least some of time, although they probably don’t know it. It is surprising to learn that if we feel thirsty, we are already in the first stages of dehydration. In fact, we are advised to drink water before we feel thirsty.
These doctors think that health problems such as headaches, high blood pressure could be helped if people drink more water. They also believe that drinking more water can help people who are fat. Water contains no calories so it will not make us gain weight. If we drink water, we will probably drink less sugary soft drinks. Doctors also believe that drinking more water may stop people from overeating. They say that many people think that they are hungry when they are, in fact, thirsty. Doctors suggest, therefore, that we eat less food and drink more water.
There are still many health problems that cannot be solved by drinking water, so we should not stop going to see the doctors completely.
1. From the text, we know water can carry ________.| A．energy and fiber in our bodies. | B．fruit, vegetables and fish in our bodies. |
| C．sugar and fat out of our bodies. | D．poisons and waste out of our bodies. |
| A．It makes them hungry. | B．they think they are hungry and eat too much. |
| C．Water has no calories. | D．they think they are thirsty and eat less. |
| A．eat less food and drink less water | B．not eat food and just drink water |
| C．eat less food and drink more water | D．eat more food and drink more water |
| A．People should drink water and not eat fruit. |
| B．Some health problems start because of a lack of water. |
| C．Fruit provides us with energy and fiber. |
| D．Drinking more water may stop people from overeating. |
相似题推荐
The world is an interesting place. Different people like different things. Some people like loud music. Other people don’t.
Many people like sports, but they do not all like the same sports. In some countries, cricket (板球运动) is a very popular sport. In others it is not popular at all. No one plays it or watches it on TV. However, most people like soccer. The World Cup is very popular.
Different people like different kinds of foods. Some people do not like meat.
Many people like traveling. Different people like different places. Some people like to go to the country. They like the fresh air. Some people like to go to the cities. Because they like shopping.
What do you like? Have you got an idea?
| A．Some other people enjoy beautiful places like the mountains or beaches. |
| B．Not everyone likes the same color. |
| C．Lots of people watch the games on TV. |
| D．Different people like different kinds of pets. |
| E．So they don’t feed pigs in their countries. |
| F．They eat fruit and vegetables most of the time. |
| G．They like quiet music. |
【推荐2】What can be red or green, round or sharp, big or small, and more importantly, loved or hated by someone? Yes, the answer is chilies (辣椒). Many of us in China enjoy adding chilies to our food, but did you know that this spicy vegetable could also be dangerous? A 34-year-old US man ended up in hospital after eating a Carolina Reaper, the spiciest chili people have ever known so far. After taking just a small part of the chili, the man had a serious headache in the following days, reported BBC News.
In fact, eating spicy food causes stomach aches and headaches. But if chilies are harmful, why do people like to eat this vegetable? So what makes people love chilies so much? The human body is influenced (影响) by something natural that produces “a sense of happiness”, noted BBC News.
And chilies are good for people in another way. Scientists found that the death rate (死亡率) of those who eat spicy food once or twice a week is 10% lower than those who eat it less than once a week. The death rate is 14% lower for those who eat spicy food six to seven times a week. This encourages people to eat more spicy food to improve health and bring less death risk (风险) at an early age. So don’t worry if you love spicy food. It seems that chilies are actually good for us.
1. The spiciest chili that people have known so far is ________.| A．Carolina Reaper | B．Sichuan Reaper | C．Hunan Reaper | D．American Reaper |
| A．chilies do no harm to people | B．the chili is a kind of vegetable |
| C．they can get personal enjoyment | D．chemicals in chilies make them mad |
| A．甜的 | B．辣的 | C．咸的 | D．苦的 |
| A．The more chilies you eat, the longer you must live. |
| B．Scientists encourage us to add chilies to our food. |
| C．We should eat spicy food six times a week. |
| D．Spicy food isn’t good for our health. |
| A．Eating Chilies, a Healthy Lifestyle | B．A Kind of Chinese Vegetable |
| C．Chili—a Harmful Vegetable | D．Causes of Stomach aches |
【推荐3】Scientists have learned a lot about the kinds of food people need. They say that there are several kinds of food that people should eat every day. They are: (1) green and yellow vegetables of all kinds; (2) citrus (柑桔) fruits and tomatoes; (3) potatoes and other fruits and vegetables; (4) meat of all kinds, fish and eggs; (5) milk and foods made from milk; (6) bread or cereal (谷物), rice is also in this kind of food; (7) butter, or something like butter.
People in different places of the world eat different kinds of things. Foods are cooked and eaten in many different kinds of ways. People in different countries eat at different times of the day. In some places people eat once or twice a day; in other countries people eat three or four times. Scientists say that none of the differences is really important. It doesn’t matter whether foods are eaten raw or cooked. It doesn’t matter if a person eats dinner at 4 o’clock in the afternoon or at 11 o’clock at night. The important thing is what you eat every day.
There are two problems, then, in feeding the large number of people on earth. The first is to find some ways to feed the world’s population so that no one is hungry. The second is to make sure that people everywhere have the right kinds of food to make them grow to be strong and healthy.
1. From the first paragraph we know noodles belong to a kind of ________ food.| A．vegetable | B．fruit | C．meat | D．cereal |
| A．chicken, apples, cereal, cabbages | B．potatoes, rice, bread, carrots |
| C．oranges, bananas, fish, tomatoes | D．beef, pork, fish, milk |
| A．have the right kinds of food to eat | B．cook their food in the same way |
| C．have their meals at the same time | D．eat food in different ways |
| A．People in some places don’t have enough to eat. |
| B．There are too many people in the world. |
| C．One of the problems is that no one is hungry. |
| D．The scientists are trying to make people grow to be strong and healthy. |
| A．When people eat their meals. |
| B．What to do with the two problems. |
| C．How to cook food in different ways. |
| D．Why people in different places eat different kinds of food. |
The results show that if a person eats a right breakfast, he or she will work better than if he or she has no breakfast.If a student has fruit, eggs, bread and milk before going to school, he will learn more quickly and listen more carefully in class.
The result is opposite to what some people think.Having no breakfast will not help you lose weight.
This is because they are so hungry at noon they eat too much for lunch.They will gain weight instead of
losing it.You will lose more weight if you reduce your other meals.
1. During the test, the people were given_____________.
| A．no breakfast at all |
| B．different foods or sometimes none |
| C．very rich breakfasts |
| D．a little food for breakfast |
| A．breakfast has great effect on work and studies. |
| B．breakfast has little to do with a person's work. |
| C．a person will work better if he only has fruit and milk. |
| D．Fat people should have little for breakfast |
| A．be healthier | B．work better |
| C．lose weight | D．do nothing worse |
| A．How to Lose Weight |
| B．Breakfast Helps You Get Weight |
| C．Breakfast Is Good for Health |
| D．Don’t Have Breakfast |
| A．It is bad for your health to have no breakfast |
| B．Having breakfast will not make you put on weight. |
| C．If you don't eat much for lunch and supper, you may lose weight. |
| D．The more breakfast you have, the more quickly you'll learn in class. |
【推荐2】Food is colorful. Some food is green, some food is red, and some is black. Now, more and more people like to have black food - black rice, black beans, black grapes. Why do they like black food?
Black food can make gray hair into black hair. Black hair is good for the heart. Black food can help children become smart. Black food can help women look young.
Black food is very good, but we need food with different colors. Doctors say that it isn't good to be choosy about the food. So we had better eat all kinds of food.
1. Now more and more people like to eat .| A．red food | B．green food | C．black food | D．rice |
| A．eyes | B．ears | C．nose | D．heart |
| A．smart | B．young | C．old | D．tall |
| A．挑剔的 | B．优选的 | C．浪费的 | D．无色的 |
【推荐3】The weather is getting hotter and you'll be getting thirstier playing basketball or riding home from school. A cold drink may be just the thing.But be careful what you pour down your throat.Something that looks cool may not be good for your health.
There are plenty of so-called energy drinks on the market. Most of them have an attractive color and cool name. Their nutrition lists also contains various things from vitamins to ginseng(人参).Sounds great!
But after a careful check you may find that most energy drinks contain high levels of caffeine. These drinks are typically aimed at young people, students, busy people and sports players.
Makers sometimes say their drinks make you better at sports and can keep you awake.But be careful not to drink too much.Caffeine raises your heartbeat. Because of this, the International Olympic Committee has limited their use.The amount of caffeine in most energy drinks is at least as high as in a strong cup of coffee or strong tea.
Research by Australian scientists has found that many teenagers are affected by caffeine. The results of their survey show that 27 percent of boys aged 8～12 take in more caffeine than their parents.
There are potential( 潜在的)health risks linked to energy drinks. Just one can of energy drink can make you nervous, have difficulty sleeping and can even cause heart attacks.
Teenagers should be discouraged from consuming drinks with a lot of caffeine in them, an expert from the Australia Nutrition Foundation said.
1. Energy drinks are typically aimed at the following people except.| A．young people, | B．busy people | C．sports players | D．old people |
| A．it raises one's heartbeats | B．it gives one more energy |
| C．It makes one awake | D．it makes one nervous |
| A．Energy drinks have a cool name. |
| B．Energy drinks have an attractive color. |
| C．Energy drinks are healthy |
| D．Energy drinks contain high levels of caffeine |
| A．It is good to have energy drinks every day. |
| B．It's not good to have more energy drinks |
| C．The writer can't stand energy drinks at all. |
| D．The writer has no idea what to do with that. |
【推荐1】Some doctors think that you should drink a glass of water each morning. You should drink this water first thing before doing anything else. The temperature of the water should be similar to body temperature, not too hot, not too cold. Why should you drink this water? Water helps your body in many ways. It helps clean out your kidneys. It prepares your stomach for digestion (消化). Water can also help your intestines work better. After drinking water, the intestines can more easily take out nutrients (养分) from our food. Water also helps us go to the bathroom more easily.
Scientists suggest that people take in 1, 600 milliliters of water each day. But don’t drink all of that water in one sitting. If you do, your kidneys will have to work much harder to remove it. It’s better to drink some in the morning and some in the afternoon. Some people think it’s better to drink between meals and not during meals. They think water dilutes (稀释) the juices produced in our stomachs. This can slow normal digestion.
Are you drinking enough water every day? Check the color of your urine (尿). If it is light yellow, you are probably drinking enough. If your urine is very dark yellow, you probably need to drink more water. A little more water each day could make you much healthier!
1. What does paragraph 1 mainly talk about?| A．The best time to drink water. | B．The temperature of drinking water. |
| C．The persons who need the most water. | D．The benefits of drinking water each morning. |
| A．The glass of water each morning. | B．Enough water each day. |
| C．Water in the afternoon. | D．Drinking water. |
| A．Drinking hot water. | B．Drinking during meals. |
| C．Drinking between meals. | D．Drinking lots of water in one sitting. |
| A．Water helps your body a lot. | B．You are much healthier. |
| C．Water slows normal digestion. | D．You didn’t drink enough water. |
| A．Design a project. | B．Tell a story. |
| C．Describe an object. | D．Explain a fact. |
【推荐2】When we hear the word “virus”, we naturally think of something dangerous. However, some viruses coexist(共存) with us and we can even make good use of some of them, according to recent studies.
Biologists suggest that 380 trillion viruses are living on and within your body right now. These viruses are collectively known as the human virome (病毒组). Some can cause illness, but many simply coexist with you.
It appears that our viromes begin to accumulate when we are born. Studies have shown different viruses in the babies’ bodies shortly after birth, suggesting that they probably come from the babies’ mothers.
The viromes grow in number as the kids grow up. They are not likely to change during adulthood. “The virome looks like a partner that can influence our daily lives positively as well as negatively. We could even use the virome to improve our own health,” said David Pride, an expert from the US.
One way is to use parts of viruses to cure diseases. Researchers in the US have purified (提纯) an enzyme (酶) from a virus that kills bacteria (细菌) found in patients.
The other way is to develop viruses’ value. Many viruses in our viromes infect bacteria. When the viruses move around the body, some arrive at the surfaces of our bodies such as the nose, throat and stomach. Viruses cannot divide and produce exact copies of themselves there, but they can wait for a bacteria to arrive. This process makes it possible to prevent us from getting certain diseases.
1. What does the underlined word “accumulate” in paragraph 3 mean?| A．produce matters | B．create problems | C．increase the quantity | D．examine the body |
| A．Viruses even appear in the body of a baby. | B．Not all viruses cause illnesses in our body. |
| C．There are less than 380 trillion viruses in a baby’s body. | D．The number of viromes grows largely in the body of adults. |
| A．They make enzyme that can cure cancer. | B．They help people avoid certain diseases. |
| C．They can turn harmful bacteria into a harmless one. | D．They can copy themselves to kill harmful bacteria. |
| A．To explain how viruses can be very useful. | B．To describe how viruses come into being. |
| C．To show the importance of human viromes. | D．To introduce our relationship with viruses. |
| A．A menu. | B．A science fiction. | C．A guidebook. | D．A biology magazine. |
【推荐3】Do you believe that your pet fish are able to identify (辨认) your face from many other human faces? “Yes, it is right,” said scientists from the UK and Australia. They made a study of the archerfish(喷水鱼).
You can find archerfish all the way from India to Indonesia, the Philippines and Australia. They can shoot water at their prey (猎物), and they do it by changing the shapes of their mouths. The flying insects(昆虫) fall into the water, and it’s just the right place. The archerfish are waiting there to eat them up.
The team began by showing four archerfish the pictures of two human faces. In the beginning, the fish shot water at both. However, they soon learned that if they shot the face that researchers asked them to, they could get some food. After that they concentrated(集中注意力) mainly on that face. The scientists then made a further study by adding 44 other human faces to the mix.
To the scientists’ surprise, the archerfish in the study were able to recall the learned face almost 81% of the time. Now the scientists know how smart the fish are!
Identifying a human face is not an easy thing. As we all know, humans’ faces have something in common—two eyes, one nose and one mouth. For animals, the differences are not clear. But a few animals have this special skill like archerfish, such as horses, cows, dogs, monkeys and bees.
根据语篇内容，选择最佳选项。
1. What can we know from Paragraph 1?
| A．All pet fish can’t identify human faces. |
| B．Archerfish can do a lot of things. |
| C．Scientists from England and Australia studied archerfish. |
| A．By shooting water at their prey. |
| B．By changing the shapes of their bodies. |
| C．By waiting somewhere without moving. |
| A．Because they could shoot water at both human faces. |
| B．Because they could shoot the face the researchers asked them to. |
| C．Because they could catch prey by shooting water. |
| A．袭击 | B．忆起 | C．猜测 |
| A．Archerfish can really remember. |
| B．What can archerfish do? |
| C．The living habits of archerfish. |
【推荐1】The class in America is almost the same as that in China. But something is different.
1. In America, if the teacher asks you a question but you don’t understand, you should put up your hand and ask the teacher to repeat it. If you don’t know the answer, it is all right to tell the teacher that you don’t know. Then he or she knows what you need to do.
2. You mustn’t be absent on a test day. If you are seriously ill, call and let the teacher know you will not be there for the test. If your teacher allows you a make-up test(补考), you should take the test in one or two days after you go back to school.
3. Be on time! It is impossible to be late. If you come in late, be sure to do it quietly. Take your books out of your bag after you enter the room. Then go to your seat and sit down quietly. In the US, you needn’t knock before you come into the classroom.
4. If you have to leave during the class, do it quietly, too. There’s no need to ask for the teacher’s agreement.
1. When a teacher asks you a question but you don’t know the answer, you should _________.| A．repeat the question |
| B．tell the teacher you don’t know |
| C．give an answer |
| D．put up your hand |
| A．早到的 | B．迟到的 | C．缺席的 | D．出席的 |
| A．When he’s too sick to take the test. |
| B．When he gets a bad grade in his test. |
| C．When he doesn’t finish the paper in his test. |
| D．When he is late for a test. |
| A．takes out book quietly |
| B．comes into the classroom quietly |
| C．takes his/her seat and sits down quietly |
| D．gets to school late |
| A．If one is late, he/she can’t enter the classroom without the teacher’s agreement. |
| B．One can take a make-up test without the teacher’s agreement. |
| C．One can leave the classroom without the teacher’s agreement. |
| D．One can’t put up his/her hand to ask the teacher to repeat the question if he/she can’t understand it. |
Plants are certainly interesting and we have lots to learn about how they work, but can one plant pass along a message to another plant? Can that second plant receive the information and understand what it means? Modern research shows that they do communicate with each other and the two most important plant communication methods are chemicals and sounds.
Back in 1983, two scientists, Jack Schultz and Ian Baldwin, reported that young tree saplings (幼苗) getting bitten by insects could produce chemicals. Some chemicals moved through the plant causing other parts of the plant to produce a natural pesticide (除虫剂) which would discourage further feeding by insects. The chemicals also moved through the air. You and I wouldn’t notice, but these insects chemicals carried a slight smell that neighboring plants could notice and produced pesticides too. Over the past 20 years, scientists have found that many kinds of plants produce chemicals when they’re being attacked (袭击). It’s a plant’s way of crying out. But is anyone listening? Of course. Because the damage (伤害) is usually seen on the first plant, the neighbors stay well.
A new research, published in the journal Trends in Plant Science, has shown that plants also communicate with each other by making “clicking” sounds, which cannot be heard by the human ear, but they can be picked up by other plants. Using powerful loudspeakers, researchers were able to hear clicking sounds coming from the roots of corn saplings. Researchers also found that when they hung the young roots in water and played a continuous noise at 220 Hz, a similar frequency (频率) to the plant clicks, they found that the plants grew towards the source of the sound.
Plants are really great communicators. They are giving out lots of useful information to the environment. We are only just beginning to understand how this information is produced and how it is then picked up by other plants who can use it for their own benefit. So, the next time you step on some grass or pick a flower, remember that the poor plant might be crying at its neighbors, but we humans just cannot hear it!
1. Many plants ________ when they are bitten by insects.| A．give out chemicals |
| B．kill the insects with leaves |
| C．produce an awful smell |
| D．learn nothing about the attack |
| A．Plants have no natural abilities to protect themselves from insects. |
| B．The roots of the corn make clicking sounds when they are attacked. |
| C．Both chemicals and sounds made by plants are hardly noticed by people. |
| D．The same damage can usually be seen on a plant and its neighboring plants. |
| A．Why Do Plants Send Messages? |
| B．Do Plants Speak to Humans? |
| C．How Do Plants Communicate? |
| D．Do Plants Like Neighbors? |
【推荐3】In ancient China, there were “four treasures of the study”—the writing brush, ink, paper, and the inkstone (砚台). Among all the inkstones, the Chengni inkstone was one of the most famous and was widely loved.
The Chengni inkstone first appeared during the Western Han Dynasty, but the skills of making it were lost during the late Ming Dynasty and early Qing Dynasty. Thankfully, today the traditional skills have been revived (恢复) with the help of Lin Yongmao and his son Lin Tao.
In 1984, Lin Yongmao began working at the museum in Xinjiang, Shanxi Province. There he read some books about the Xinjiang Chengni inkstone, and then decided to revive the lost skills.
It was easier said than done. It took the father and son two years to find proper matterials to produce the Chengni inkstone. That was just the first step. After failing many times, they finally succeeded in making two Chengni inkstones in 1991. Three years later, their Chengni inkstones won a gold prize at an expo (博览会) on China’s famous inkstones.
But the father and son did not stop there. While improving the skills of making the Chengni inkstone, they set up a workshop in the hope of passing the skills on to young people. They also worked with universities and colleges to make the Chengni inkstone more popular. At the same time, Lin Tao brought the inkstone products abroad and sold them to the foreigners.
1. What do we know about the Chengni inkstone?| A．It has quite a long history. | B．It was popular only in Shanxi Province. |
| C．It was not famous. | D．It first appeared during the Eastern Han Dynasty. |
| A．In 1984. | B．In 1986. | C．In 1991. | D．In 1994. |
| A．To tell readers why to produce the Chengni inkstone. |
| B．To explain how hard it was to revive the Chengni inkstone. |
| C．To encourage readers to learn about China’s famous inkstones. |
| D．To help readers understand the importance of the Chengni inkstone. |
| A．Writing brush. | B．Ink. | C．Paper. | D．Chengni Inkstone. |
| A．The Chengni inkstone became popular in China. |
| B．Lin Tao sold Chengni inkstone in China. |
| C．The Chengni inkstone became popular abroad. |
| D．Lin Tao didn’t make Chengni inkstone. |
