根据短文内容的理解，选择正确答案。D For many years, scientists have said that the earth is getting warmer. Now they...

题型：阅读选择题类：常考题难易度：普通

广西钦州经济技术开发区中学2016-2017八年级下学期英语期中考试试卷

根据短文内容的理解，选择正确答案。

For many years, scientists have said that the earth is getting warmer. Now they have found something new—hot cities! In the southern US, they have found that cities become very hot in summer. For example, the city of Atlanta in Georgia has roof(屋顶) temperature of up to 50^oC while it is 27℃ in the streets! At night, the outside of buildings stays so hot that the heat of the city causes storms over the city!

China also has the same kind of problems. Every year more farmland is used for factories or offices. More housing is needed, too. As people become richer, they buy more cars. New roads are needed and new car parks are built in the city centers. This all makes cities hotter.

It isn't easy to change the situation. City planners say that we should plant more trees in the middle of cities. Every new street should have trees on both sides, they say. Trees make the temperature lower, so we should have more trees in our parks and squares. We should also paint our roofs white. If we do this, they do not become so hot. Every roof in a hot and sunny country should have solar(太阳的) roof panels. The electricity from these can be used to run the air conditioners (空调)in the buildings.

People continue to cut down forests around the cities. This makes the problem worse. Cities are growing faster and faster. By the year 2025, four fifths(五分之四) of the population will be living in cities. If we go on like this, there will not be enough farmland to feed everyone in the world.

（1）、The scientists have found .

A、cities become very hot in summer B、Atlanta is the hottest city in America C、there are not as many storms as before D、it is not as hot on the roof as in the street

（2）、The way to make the city cooler is to .

A、plant more trees B、try to use air conditioners more C、build more parks and squares D、paint the roofs of all the white buildings

（3）、What will probably happen in the future according to the fourth paragraph(段落)?

A、Cities won't grow very fast B、We will not have enough food C、Most people will move to the countryside D、People will plant more trees outside the cities

（4）、What is the best title(题目) for the passage?

A、More Farmland Is Needed B、Trees Make Cities Cooler C、Cities Are Getting Hotter D、Scientists Are Worried About Storms

举一反三

Drinking water is good for your health. There are some scientific ways of drinking water.
1. It is the best medicine to drink two glasses of water in the morning.
2. Drink clean water.
3. Drink the water that has not been boiled.
Many people think boiled water is safe and good to people's health. In fact, it is not true. The boiling point of water is 100℃. By boiling it, most bacteria（细菌）in water can be killed. In the past, the water was less polluted. So boiling was a good way to make clean water. But heavy metals and other dangerous things in today's water are much more terrible than bacteria. Boiling doesn't fix that problem. And boiling water may give us more of the dangerous things in our glass.
4. Never use soft drinks to take the place of water.
5. Water is also needed in winter.
6. Drink water at the right time.
1) After getting up in the morning, you have less water in your body, because you weren't drinking for the whole night. So you should drink some water to keep your health after getting up in the morning. That can prevent high blood pressure, cerebral hemorrhages（脑溢血）and so on.
2) Drinking water at about 10 am helps your body keep enough water.
3) Drinking water at about 3 pm can clean out the wastes in your body.
4) About eight o'clock in the evening is the best time to drink water. Your blood gets thicker when you sleep. Water will make your blood less thick.
Besides, we should drink 2L of water every day. Water is so important for our life. We should drink water often.

    Many animals do strange things before an earthquake (地震). This news may be important. Earthquakes can kill people and knock down homes. The animals may help to save lives.
    Some animals make a lot of noise before an earthquake. Farmers have told about this. Dogs that are usually quiet have started to howl(吠). Horses on farms have run around in circles. Mice have left their holes and run away. Cows have given less milk.
    In a town in Italy, cats raced down the street in a group. That happened only a few hours before an earthquake. In San Francisco, a man kept tiny pet frogs. One Sunday, the frogs jumped around more than ever. They made loud noises, like bigger frogs. That night, an earthquake struck the city.
    People want to know when an earthquake is coming. Then they could get away safely. Right now, there is no sure way to know ahead of time. Maybe the best way is to watch the animals.

Air is a colorless, tasteless and invisible（看不见的）gas that is around us. An “empty” drinking glass and an “empty” room, in fact, are not really empty. Each is filled with air. When the glass is filled with water, the water pushes the air out of the glass.
Air, as a gas, has no definite shape, but because it is matter, it takes up space and it has weight. It is easy to prove that air is something that takes up space. Stuff a piece of dry cloth（布）into the bottom of a glass so that it will not fall out when the glass is turned upside down. Push the upside down glass, holding straight up and down, into a jar of water till the glass is completely covered. When the glass is taken out of the water, the cloth is still dry. The air inside the glass shows that it takes up space and keeps the water from coming in.

阅读理解

Do you know of anyone who uses the truth to deceive(欺骗)? When someone tells you something that is true, but leaves out important information that should be included, he can give you a false picture．

For example, someone might say, “I just won a hundred dollars on the lottery(彩票). It was great. I took that dollar ticket back to the store and turned it in for one hundred dollars!”

This guy is a winner, right? Maybe, maybe not. We then discover that he bought $ 200 worth of tickets, and only one was a winner. He's really a big loser!

He didn't say anything that was false, but he left out important information on purpose. That's called a half-truth. Half truths are not technically lies, but they are just as dishonest.

Some officers often use this trick. Let's say that during Governor Smith's last term, her state lost one million jobs and gained three million jobs. Then she tries another term. One of the persons who don't support her says, “During Governor Smith's term, the state lost one million jobs!” That's true. However, an honest statement would have been, “During Governor Smith's term, the state had a net gain of two million jobs.''

Advertisers will sometimes use half—truths. It's against the law to make false statements so they try to mislead you with the truth. An advertisement might say, “Nine out of ten doctors advised their patients to take Yucky Pills to cure toothache. ”It fails to mention that they only asked ten doctors and nine of them work for the Yucky Company.

This kind of thing happens too often. It's a sad fact of life: Lies are lies, and sometimes the truth can lie as well.

阅读理解

The word, "photography", was first used in 1839. It comes from the Greek words that mean "to write with light". But photography could only give people static pictures. So scientists were trying hard to find ways to make pictures that can move. They made lots of experiments, but failed again and again. It was Eadweard Muybridge who finally succeeded. He was the first photographer to try this successfully. But how did he make it? It was an interesting story.

Back in 1872, people didn't know exactly(确切地) whether all four of a horse's hooves(蹄) left the ground at the same time when it was running. A gentleman called Leland Stanford made a bet with his friend about it. Most people believed that a horse always had one hoof on the ground, or it would fall over. But Stanford didn't think so.

At that time, it was hard to know who could win the bet, because a horse's legs move so fast that it is impossible to tell just by looking. So they needed a way to record the movement of a running horse. Then Stanford offered $ 25,000 to the famous photographer, Muybridge, to help find the answer. In the beginning, Muybridge failed to get clear images, but he didn't give up. He continued to improve his cameras. In 1878, after many experiments, he managed to get a sequence(连续) of 12 photos. One of them clearly showed that all four of the horse's hooves were off the ground at the same time. And when the photos moved fast, people could see a horse running.

Though Edison is usually considered as the person who created the first movie in 1889, it was the work of Eadweard Muybridge and the bet that led to Edison's invention.

阅读理解

Every year on April 22, People all over the world celebrate Earth Day. It is a time to work to keep our earth clean. People plan projects to clean up the land, air and water.

U.S. Senator Gaylord Nelson first thought of the idea for Earth Day in 1962 when he saw polluted rivers and cities with smoke. He needed to get support from Americans to clean up the earth. Finally, on April 22, 1970, 20 million Americans celebrated the first Earth Day! Now many countries around the world celebrate it, and you can, too.

How can you celebrate Earth Day? Here are a few ideas:

Join a clean-up project-Clean up your street or a favorite beach.

Save energy-Turn off the lights when you leave a room, and use public transportation.

Use less water.

Reduce(减少)/ Reuse/ Recycle ― Practice the three Rs: First, reduce how much you use. Then reuse or recycle what you can.

You can make a difference on Earth Day and every day!

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