（2016•天津）根据短文内容，选择最佳答案。 Many people travel to different places in the world by air. Usually it ta...

题型：阅读选择题类：真题难易度：普通

2016年天津市中考英语真题试卷

根据短文内容，选择最佳答案。

Many people travel to different places in the world by air. Usually it takes a long time, perhaps half a day, for passengers to stay in the plan. So airlines（航空公司）offer passengers food. But it is common that they feel bad about food taste. Do you agree?

To solve this problem, airlines try hard to improve their food. They would like to do so because they don't want to lose customers.

However, according to scientific research, part of the reason why plane food tastes bad is that at high altitude（海拔）we can not taste things as well as we do on the ground. Also scientists have found that our noses become very dry even before a plane takes off. As the plane moves up, the change in air pressure（气压）reduces one third of the sensibility（感觉）of our taste buds（味蕾）. So our taste buds become senseless. The sad face, however, is that our noses don't know it.

All of these help explain why food on the plane tastes so bad. They also help explain why airlines choose to offer passengers salty and spicy（辛辣的）food. Without doing so, the food would be tasteless.

Now there are many researches on this. According to one of them, some volunteers are asked to lie with their feet higher than their heads for weeks. And scientists write down their feelings about food taste.

Though scientists try their best, it is not as easy as they thought. Because they can't deal with the special environment successfully, such as the change in air pressure, making food taste good is still hard for them.

（1）、In Paragraph 2, “this problem” means ______.

A、passengers stay long in the plane B、food on the plane tastes bad C、passengers have no food to eat D、food on the plane is expensive

（2）、What do airlines do to solve this problem?

A、Get more customers. B、Offer more food. C、Improve their food. D、Reduce the ticket price.

（3）、As the plane moves up, the change in air pressure reduces of the sensibility of our taste buds.

A、half B、one third C、one fourth D、one fifth

（4）、Why do scientists feel it hard to made food on the plane taste good?

A、The volunteers don't know about food taste. B、The volunteers don't understand them. C、They can't find enough volunteers. D、They can't deal with the special environment successfully.

（5）、What is the best title of the passage?

A、Taste of Airplane Food B、Airplane Travel C、Scientific Research on Noses D、The Change in Air Pressure

举一反三

Everybody hates rats. But in the earthquake places of the world – Japan, Los Angeles, Turkey – rats will soon be man's new best friends.
What happens after an earthquake? We send in rescue(救援) dogs. Why? Because they can smell people. Dogs save lives. They help rescuers to find living people. But dogs are big and they can't get into small spaces. So now a new research project is using a smaller animal to save lives: the rat.
How does it work? First, the rat is trained to smell people. When this happens, the rat's brain gives a signal. This is sent to a small radio on its back, and then the rescuers follow the radio signals. When the rat's brain activity jumps, the rescuers know that someone is alive. The rat has smelled that person.
Although there are already robots which can do this job, rats are better. Christian Linster at Cornell University, New York, says, "Robot' noses don't work well when there are other smells around. Rats are good at that." Rats can also see in the dark. They are cheaper and quicker to train than dogs, and unlike robots, they don't need electricity.
The "rat project" is not finished, but Julie Ryan of International Rescue Corps in Scotland says, "It would be fantastic. A rat would get into spaces we couldn't get to and a rat would get out if it wasn't safe." Perhaps for the first time in history, people will be happy to see a rat in a building ( but only after an earthquake, of course.)

    Animals, including insects, don't have a 'language' like ours. They do not 'talk' to each other in words and sentences. But if we watch them, we can see that they do have their ways of communicating (交流) with each other.
    Can you see the rabbit's tail? When rabbits see this white tail moving up and down, they run away. They know that they are in danger. The rabbit has told them something without making a sound. It has given them a signal.
    Many other animals use this kind of 'language'. When a cobra（眼镜蛇）is angry, it raises its head and makes itself look powerful（有力的）. This warns other animals. When a bee（蜜蜂）has found food, it goes back to its home. It cannot 'tell' the other bees where the food is by speaking to them, but it does a little dance. This tells the bees where the food is.
    Some animals 'say' things by making sounds. A dog barks, for example, when a stranger comes near. A cat purrs when it is pleased. Some birds make several different sounds, each with its own meaning. Sometimes we human beings speak in the same way. We make sounds like "Oh" or "Ah" when we are frightened or pleased or when we drop something on our toes.

Healthy eating doesn't just mean what you eat, but how you eat. Here is some advice on healthy eating.
Eat with others. It can help you to see others' healthy eating habits. If you usually eat with your parents, you will find that the food you eat is more delicious.
Listen to your body. Ask yourself if you are really hungry. Have a glass of water to see if you are thirsty—sometimes you are just thirsty, you need no food. Stop eating before you feel full.
Eat breakfast. Breakfast is the most important meal of the day. After you don't eat for the past ten hours, your body needs food to get you going. You will be smarter after eating breakfast.
Eat healthy snacks like fruits, yogurt or cheese. We all need snacks sometimes. In fact, it's a good idea to eat two healthy snacks between your three meals This doesn't mean that you can eat a bag of chips instead of a meal.
Don't eat dinner late. With our busy life, we always put off eating dinner until the last minute. Try to eat dinner at least 3 hours before you go to bed. This will give your body a chance to digest most of the food before you rest for the next 8—10 hours.

阅读理解

Different weather makes people feel different. It influences health, intelligence (智力) and feelings.

In August, it is very hot and wet in the southern part of the United States. People there have heart trouble and other kinds of health problems during this month. In the Northeast and the Middle West, it is very hot at some times and very cold at other times. People in these states have more heart trouble after the weather changes in February or March.

The weather can also influence intelligence. For example, in a scientific report, IQ (智商) of a group of students was very high when a very strong wind came, but after the strong wind, their IQ was 10% below. The wind can help people have more intelligence. Very hot weather, on the other hand (另一方面), can make it lower. Students in many schools of the United States often get worse on exams in the hot months of the year (July and August).

Weather also has a strong influence on people's feelings. Winter may be a bad time for thin people. They usually feel cold during these months. They might feel unhappy during cold weather. But fat people may have a hard time in hot summer. At about 18 ℃, people become stronger.

Low air pressure (气压) may make people forgetful People leave more bags on buses and in shops on low-pressure days. There is a "good weather" for health. People feel best at a temperature of about I8℃.

Are you feeling sad, tired, forgetful, or unhappy today? It may be the weather's problem.

阅读理解

Each year more than2,500 people die and 12,600 are injured in home fires just in the UnitedStates, with direct property(财产) lossbecause of home fires at about $7.3 billion every year. Every day Americansexperience tile horror(惨状) of fires, but most people don'tunderstand fires.

To protect yourself, itis important to learn something about home fires.

In less than 30 secondsa small flame can get completely out of control and turn into a major fire. Itonly takes minutes for thick black smoke to fill a house or for it to be inflames. Most deadly fires occur in the home when people are asleep, lf yourealize a fire, you won't have time to take valuables because the fire spreadstoo quickly and the smoke is too thick. The fire uses up the oxygen you needand produces smoke and poisonous(有毒的) gases that kill. Breathing even small amounts of smoke and toxicgases can make you tired and sleepy, and short of breath. The smoke can causeyou to be a deep sleeper before the flames reach your door. You may not wake upin time to escape.

Room temperatures in afire can be 100 degrees at floor level and rise to 600 degrees at eye level.Breathing in this super-hot air will burn your lungs. It can melt clothes toyour skin. In five minutes, a mom can get so hot that everything in it startsto burn at once.

Fires are bright atfirst, but quickly produce black smoke and complete darkness. If you wake up toa fire you may be blinded, confused about where you are or which direction you shouldgo in and unable to find your way around the home you've lived in for years.

Only when we know thetrue nature of fires can we prepare our families and ourselves.

阅读下面短文，从每题所给的A、B、C、D四个选项中选出能正确回答所提问题或完成所给句子的最佳答案。

The movie The Martian (《火星救援》) is very popular among space lovers. It shows an astronaut trying to live on Mars.

Although the idea of living on Mars is great, the reality does not look so good. Mars does not have a friendly atmosphere (大气层) for humans. There is very little oxygen there. And because it is too far away from the sun, it is also very cold there. Sometimes the temperature on Mars can be -133℃. This is much too cold for humans.

However, scientists say it might be possible to live there even without a good atmosphere. Daytime on Mars is almost the same as Earth's. It means there's enough sunlight to grow plants inside safe buildings. However, they would have to grow in soil from Earth. Mars does not have a strong enough atmosphere to stop the radiation (福射) coming from space, which makes it dangerous to grow things in the soil.

The radiation also causes problems for our health. One way to live there is to build homes underground or in the rocks on the planet. This can help humans keep away from the radiation and keep warm.

When could we live on Mars? Scientists are hoping to make it possible to live on Mars. Let's wait and see.

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