There are many kinds of pollution around us, 1 air pollution, soil pollution, noise pollution and light pollution. They are bad 2 our health in many ways.
Burning gas, oil and coal creates air pollution. It can cause some eye and breathing problems.
With the 3 of pollution and the development of industry, litter is everywhere. It makes our environment dirty. People put lots of rubbish in the land. Farmers use too many 4 in the fields. They destroy the soil.
So soil pollution has become serious.
Noise pollution can make people 5. For example, people may lose their hearing if they have worked in a 6 place for a long time. Too much noise can cause high blood pressure 7.
Having worked for a long time in strong, changeable light 8 cause some kinds of illnesses. It makes people feel 9 and is especially bad for the eyes.
With 10 pollution, our planet will become greener and our health will be better. Let's be greener people.
The moon was behind a cloud and there weren't many stars in the sky.
It was a dark night. I saw a glow(光) in my neighbour's kitchen. I thought he was having a night meal so I went back to my bed.
Soon, there was a smell of burning in the air and I thought there was probably something wrong. I jumped out of the bed quickly and went out to make sure. I saw a fire coming out of my neighbour's kitchen. Then I shouted "Fire! Fire! ".But no one in the neighbourhood heard my shouts for help.
I ran into my house, called the fire department(消防队) and went back to my neighbour's house. I banged(猛敲) on the door and called out my neighbour's name, but there was no answer. Finally I broke into the house and rescued a cat and a dog.
I tried to pour water through the kitchen window but it was no use. It was a big fire. Luckily, the firemen arrived soon and stopped the fire.
When my neighbour came back, he was sad for his kitchen but he thanked me for calling the fire department and for saving his pets. He wanted to give me some money but I did not accept it.
Weeks later, my neighbour had a new kitchen. He invited me to see his new kitchen and we enjoyed a big meal there. It made me very happy.
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Paul is a photographer(摄影师). He went to the Arctic to take pictures for NationalGeographic(《国家地理》). Finally, he saw a big and white polar bear swimming to him in the icy water.
Paul lay down the ice to get a better photo, but the polar bear jumped out of the water and tried to attack him! Luckily for Paul, the ice cracked(破裂), or broke and the bear fell back into the water. The polar bear wasn't so lucky. It couldn't get a meal and had to swim farther away to find food.
To understand the polar bear's problem, you need to know two things about the Arctic. First, the Arctic is mostly ocean(海洋). Second, ice covers(覆盖) a lot of the Arctic Ocean. In winter, the ice is thick, but in summer, the ice becomes thinner and breaks into pieces. Sea ice is the key to survival for Arctic animals. However, because of global warming, Arctic temperatures are rising and polar ice is melting(融化).
Polar bears need ice to hunt(捕捉) seals, their favourite meal. They stand on the ice and wait for the seals to come up for air. As Arctic ice melts, polar bears have to swim farther to find ice floes, or large pieces of floating ice. Sometimes, bears have to swim more than 200 km to find an ice floe. Some bears cannot swim that far and sadly they drown(淹死).
On his last trip, Paul saw three dead bodies of polar bears. Before global warming threatened(威胁) Arctic ice, a dead bear was a rare sight. Paul is sad to see the dead bodies. Wildlife experts(专家) think global warming will have a terrible effect(影响) on polar bears. In the future, polar ice will continue to shrink and endanger the bears. Some scientists believe 65 percent of the world's polar bears will disappear(消失) by 2050. In other words, polar bears are in great danger.
Not only adults but also teenagers have problems in their life. Here is a survey showing the main problems of teenagers.
They feel stressed because they have too much homework to do both at school and at home. They have lots of exams to take. And parents usually send them to different classes at weekends. They don't have their own time to do what they are interested in.
Now more and more teenagers are getting shortsighted. They often read in bed or keep reading for a long time without having a rest. Some of them are crazy about playing computer games. Some spend too much time watching TV.
Another serious problem among teenagers is that many of them are becoming fat. They eat too much junk food, but they take little exercise.
I think teenagers should think of ways to deal with problems. They should make a plan for study and hobbies and find time to relax as much as possible.
要变换形式。每词限用一次
because, clothes, chance, different, name, build, area, foreign, visit, large |
Chicago is a famous city in the US. If you have a(n) to go to the US, it is a good idea Chicago.
In the US, Chicago is the third city. It is home to people from all over the world. People move to Chicago from places to live with their families or friends. They come to this city by train, plane or ship.
The centre of Chicago is The Loop. You can see many tall here, even some of the tallest in the world. As you travel away from The Loop, you will find there are places of different cultures (文化l). But you can't travel east out of The Loop of Lake Michigan.
When you travel south of The Loop, you will find like Chinatown. There, people from 'China celebrate many festivals as people in their home town do. They also celebrate the holidays of the US.
Remember to take many with you when you go to Chicago. Why? Because Chicago is called the Windy City.
When you read the sentence, the population of the earth has grown by10 people. That may not sound much, it's about 14, 000 people per hour. Most of these new people are born in (develop) countries. These countries are found in much of Africa, South America and parts of Asia.
In the developed countries of Europe and North America, the population is growing very (slow). This is women in these countries have, on average(平均), only one or two children. But in the developing countries, many women have five more children. In the developing countries, more than one billion people already live below the poverty level(贫困线). These people don't have enough food (eat) and they live in poor housing. Children get little or no time at school and suffer from many (kind) of diseases.
The UN has said that the world's population will reach over 10 (billion) by the year 2100.If the number (make) your head spin(眩晕), you're not alone. Many experts(专家) are worrying that so fast population (grow) could have very bad results. It could hurt the environment and increase the number of poor people.
Tornadoes(龙卷风) are whirlwinds(旋风) with speeds of up to 400 km per hour. In Britain, there were very few tornadoes in the past. Now, there are more than 50 tornadoes a year. Tornadoes are only one sign of the world's climate changes. There are many others. The number of thunderstorms is increasing, and there are more floods in some parts of the world, and there's much less rain in others. Scientists still do not know enough about the reasons for these climate changes. Most scientists think human activities are the problem.
Cutting down trees, burning too much oil, and the increase in the number of cars are some of the things that cause the problems. Global(全球的) temperatures are rising because of these things. Scientists believe that if the temperatures continue to rise, the ice at the poles will melt(融化) .
If the ice melts, sea levels will rise. Some islands might disappear completely. All this means that unless we do something to stop global warming now, there may be many other dramatic changes in the future.
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Information Card |
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Signs of climate changes |
*Tornadoes *The increasing number of *More floods in some parts of the world while in others |
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for climate changes |
Human activities |
*Cut down trees
*The increasing number of cars |
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What will happen if we don't take action |
*Global warming *The ice will melt
*Some islands will disappear completely |
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