Every time you turn on the television or take a ride in a car ,you could be adding to a problem called aci...

题型：阅读选择题类：模拟题难易度：普通

Every time you turn on the television or take a ride in a car ,you could be adding to a problem called acid rain(酸雨). In this article, you'll learn how acid is created, and how it affects us, and more importantly, what we all can do to prevent it.
How is acid rain created?
When people use fuels(燃料), such as coal and gasoline, poisonous gases are given off. When these gases mix with rain, acid rain forms. Many power stations burn fuels in order to create the electricity(电) that we use in our homes and offices every day. Cars and trucks also send these gases into the air when they burn gasoline .When rain mixes with these gases, harmful things called acids form. This is acid rain.
How does acid rain affect us?
Acid rain damages(毁坏)everything that it touches. It poisons our rivers, ponds, lakes, and oceans along with all the life in them. It pollutes our soil and crops, harms trees, and can even kill fish and plants. Acid rain also eats away at buildings.
How can we prevent acid rain?
We need to cut down on the pollution that gets into our air. Turn off lights, television, and other electrical appliances if you are not using them, Walk or take a bike whenever possible. If you are travelling a long distance, take a bus or train to save fuel.
As research shows, acid rain harms our environment. But people everywhere can take small steps now to help protect our environment for future generations.

（1）、When power stations burn fuel, _______.

A、acid rain form B、air pollution is caused C、noise pollution is caused D、acid rain gets heavier

（2）、What advice does the article give us?

A、Go to school on foot or by bike if we can. B、Go to bed earlier in order to use less electricity C、Travel by bus to prevent acid rain D、Turn off the television on rainy days.

（3）、What is the best title of the article?

A、Preventing Acid Rain B、Forming of Acid Rain C、Acid rain, Heavy Rain D、Acid Rain, Killer Rain

举一反三

    For hundreds Of years, scientists have been trying to answer what things have an effect on people's emotions (情感). How you feel is controlled by many things. Your emotions can be affected by your personality, by the actions of others and by events around you. Perhaps you don't know your emotions can be influenced by the weather as well.
    People often say they feel good when the sun is shining and sad when it is cloudy. In fact, sunlight makes us feel good. When sunlight hits our skins, our bodies produce a vitamin. Vitamins are natural chemicals (化学物质) which we all need to stay healthy. Sunlight helps our bodies produce vitamin D. Vitamin D helps our bodies make a special chemical. This special chemical affects our brains (大脑) and makes us feel happy. For example, there are long, dark winters of little sunlight in Sweden and Norway, so many people in these countries often feel sad. Without much sunlight, their bodies produce less vitamin D. Without enough vitamin D, their bodies make less of this special chemical which makes them feel good. To help the people in these countries feel better, special “sunrooms” with artificial (人造的) lights have been built. People can go there and get “sunlight” for an hour or two!
    The weather can also affect people's emotions in other ways. Hot weather can make people angry because people feel uncomfortable when they are hot. In the same way, rain can make people angry because being wet can be unpleasant. As you can see, the weather can have an effect on the chemicals which control our brains. Through these ways, the weather can influence our emotions. Sadly, while the weather can change us, we can hardly change the weather.

    Steve Jobs, co-founder and former CEO of US technology giant Apple, has died at the age of 56. Mr Jobs had announced he was suffering from cancer in 2004. Apple said he had been "the source of countless innovations（创新）that enrich and improve all of our lives" and had made the world "immeasurably（无法衡量的）better".
    Tributes(赞美之辞) have been made by technology company bosses and world leaders, with US President Barack Obama saying the world had "lost a visionary（有远见卓识的人）". "Steve was among the greatest of American innovators —— brave enough to think differently, bold enough to believe he could change the world, and talented enough to do it," said Mr Obama.
    A statement from Mr Jobs's family said they were with him when he died peacefully on Wednesday. "In his public life, Steve was known as a visionary; in his private life, he loved his family deeply," they said, requesting privacy and thanking those who had "shared their wishes and prayers" during his final year.
    Apple said the company had "lost a visionary and creative genius(天才) and the world have lost an amazing human being". Tim Cook, who was made Apple's CEO after Mr Jobs stood down in August, said his predecessor had left behind "a company that only he could have built, and his spirit will forever be the foundation of Apple". Flags are being flown at half mast outside the Apple headquarters（总部） in Cupertino, California, while fans of the company have left tributes outside Apple shops around the world.
    The heads of other leading technology companies have also paid tribute, including Microsoft boss Bill Gates, who said "For those of us lucky enough to get to work with him, it's been a great honour. I will miss Steve very much."
    Facebook founder Mark Zuckerberg thanks Mr Jobs for "showing that what you build can change the world" while Sony Corp president and CEO Howard Stringer said: "The digital age has lost its leading light." South Korea's Samsung, which is involved in a case with Apple over patents(专利), admired Mr Jobs for his "Completely new and different changes to the IT industry".

根据短文理解，选择正确答案。

The earth moves round the sun, and the moon goes round the earth. When our part（部分） of the earth turns to the sun, it is day, When our part of the earth turns away from the sun, it is night. The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun, because it's much nearer to the earth. The sun is very bright. It gives a very strong light. The moon looks quite bright, too. But it doesn't give any light at all. The moon looks much bigger and brighter than the stars .But actually（事实上）, the stars are much bigger and brighter than the moon. They look smaller than the moon because they're much farther away from us.

根据短文内容，选择最佳答案。    There are lots of dangerous and terrible insects in Northeastern India, but the tree-bees are the most terrible. They are killers. Unlike most bees which will sting (叮咬) you only if they are disturbed (打扰), tree-bees will attack you in thousands for no reason. And they will chase (追赶) you for your life.
    Walking along a dusty road while I was on holiday there last year. I found myself, without the least warning, the centre of such an attack. The air above me suddenly became thick with bees. Though it was hot, I went cold all over. Until then I had never heard of Indian tree-bees, but I had recently seen a film called “The Angry Swarm”, which was about killer-bees.
    I began running to the village about half a mile away, but I was soon covered from head to foot with bees. I drove them away with my hands, only to make room for others. Each time I opened my mouth for breath, more bees entered my mouth, until it was stung to twice its usual size and I could hardly breathe.
    When I reached the village, I found some workers building a house. I ran towards them for help. But as soon as the workers saw the bees with me, they ran for safety at top speed.
    Soon my eyes had completely closed. I fell into a pile of brick dust. I pushed myself wildly down into it until my head and shoulders were covered. And then I tried hard to get out of the dust, the angry bees made a new attack on me. I was tired out and ran weakly about in circles. Soon I lost my consciousness (意识).
    Later I learned that two quick-minded villagers ran to a pile of dry grass and quickly surrounded (包围) me with a thick wall of fire and smoke until the bees were driven away. They stayed with me, taking stings out of my body for the next three hours until a doctor came and gave me further treatment.

阅读理解

Dear Rita,

How are you? Last time you asked me about the greatest invention in my eyes. I have also discussed it with my best friends, Anna, Sue and Kris. We have different ideas. Anna thinks it is the high﹣speed railway; Sue, the shared bike; Kris, the online shopping; and I prefer the Internet.

The Internet is just like a net, and it connects us with the world. In the past, it was nearly impossible for people to communicate immediately with people in other countries. They had to spend a long time to reach their destinations (目的地), and not everyone could do that. But the Internet has made the impossible possible. Now we can communicate with foreigners online.

The Internet also helps us know what is happening around the world, and has made our life and work easier. In recent years, shopping online is very popular. We can just stay at home and buy what we need online. We can also do online office work and distance education. Besides, we can watch movies, listen to music and even play games to relax ourselves on the Internet.

So, I think that the Internet is one of the greatest inventions. It has changed our world! Although there are still many problems with the Internet, they will be solved in the near future. As a student we should make good use of the Internet!

Yours,

Martin

阅读理解

What is the sky? How high is it? What color is it? What birds can live above it? These questions are difficult to answer, aren't they? In fact, the sky has no color. Then why does the sky look blue?

We know that there is air around the world. When planes fly, they need air to lift their wings. Planes can't fly very high. That is because the air gets thinner when they go higher. The same will happen to us if we go high enough. If we go up about 1,200 kilometers from the earth, we'll find no air there. Some birds can fly into the sky as high as a plane, but they cannot fly or live without air.

Looking up above us, you will see the blue sky with white clouds. It is usually light blue. The color would be bluer when you see on the top of a high mountain. And you will see fewer clouds in the sky between you and the sun. Sometimes the sky doesn't look blue. When the sun rises and falls, you will see red, orange and other colors in the sky, such are the most beautiful moments of the day.

Who can see the colors of the sky high above the earth? The astronauts! They can see those beautiful colors of the sky from the outer space. However, before flying into the outer space, they sit in a spaceship high above the earth and there is no air at all. The sky would be that dark and its color would be black.

Now you may understand that we see colors because the air scatters (使散射) the sunlight. Light travels through the air. Without air there would be no colors.

相关试卷

公司介绍

服务介绍

帮助中心