The earth is our home, and we must take care of it. This means keeping the land, air and water clean.
Pollution is a dirty word. To pollute means to make things unfit(不合适的) or unclean to use. Pollution comes in many ways. We see it, smell it, taste it and drink it. Pollution is beginning to threaten(威胁) our health, or happiness and our life.
Man has been polluting the earth from the time he first made fire, washed his clothes in the river and threw his waste on the ground. When land was used up or water became dirty. Men moved to another place. At first the problem was not so serious(严重) because there was plenty of clean air, land and water. There weren’t so many people then and their wants were fewer. All the dirty things could be absorbed(吸收) by nature and soon covered over(恢复). But this is no longer true. The increase of population(人口增长) and the development of industry have changed that. Man is slowly polluting his environment.
Through the use of poison(农药), man has polluted land killing the animal. By putting dirty water and chemicals into rivers and lakes we have polluted our drinking water, killing the fish.
Our increasing population is part of the problem. More people more waste.
Where is this all to end? Are we turning the world into a big rubbish dump, or is there any hope that we can get rid of(摆脱) the pollution? Luckily, millions of people have been warned of the danger of pollution. Large numbers of people are now working hard to bring pollution under control.
1. Which sentence is WRONG?A.We live on the earth, so we should look after it. |
B.To pollute means to make air, water and land unfit for use. |
C.All the waste produced by modern industry can be absorbed. |
D.Man is now fighting against different kinds of pollution. |
A.化学 | B.化学物质 | C.化学的 | D.医学的 |
A.made the drinking water dirty | B.polluted the land | C.killed the animals and fish | D.all of the above |
A.because of the increase of population and the development of industry, more and more waste is produced |
B.we need more people, not more waste |
C.there isn’t any hope that we can get rid of the pollution |
D.more people have been warned of the danger of more waste |
A.doesn’t know how to control pollution | B.still doesn’t realize how serious pollution is |
C.is doing something to control pollution | D.begins to understand the pollution |
相似题推荐
【推荐1】Have you ever had the strange feeling that you were being watched? You turned around and, sure enough, someone was looking right at you!
Parapsychologists(灵学家) say that humans have a natural ability to sense when someone is looking at them. To study if such a “sixth sense” really exists(存在), Robert Baker, a psychologist at the University of Kentucky, did two experiments(实验).
In the first one, Baker sat behind unknowing people in public places and stared(盯着看) at the backs of their heads for 5 to 15 minutes. The subjects(受试者) were eating, drinking, reading, studying, watching TV, or working at a computer. Baker made sure that the people could not tell that he was sitting behind them during those periods. Later, when he questioned the subjects, almost all of them said they had no sense that someone was staring at them.
For the second experiment, Baker told the subjects that they would be stared at from time to time from behind. The people had to write down when they felt they were being stared at and when they weren’t. Baker found that the subjects were no better at telling when they were stared at and when they weren’t.
Baker concludes that people do not have the ability to sense when they’re being stared at. If people don’t believe the outcome of his two experiments, said Baker, “I advise they repeat the experiments and see for themselves.”
1. What’s the purpose of the two experiments?A.To explain why humans have a sixth sense. |
B.To show how people act while being watched. |
C.To explain when people can have a sixth sense. |
D.To study if humans can sense when they are stared at. |
A.A natural ability. | B.A looking feeling. | C.A strange thinking. | D.A natural staring ability. |
A.fact | B.result | C.example | D.content |
A.People are born with a sixth sense. |
B.People have a sixth sense in all places. |
C.The experiments support parapsychologists’ idea. |
D.The subjects do not have a sixth sense in the experiments. |
【推荐2】Chinese New Year Painting, or nianhua in Chinese, is a kind of traditional paintings to be put upon walls and windows during the Spring Festival. Its bright colors and different subjects show the Chinese great expectation for happiness and wealth.
Chinese New Year Painting is an old handicraft. Its original (最初的) form was a picture of a door god during the Tang Dynasty. Later, more subjects such as the Kitchen God, women and babies were included. As the Chinese New Year arrives, every family puts up its New Year paintings in order to say goodbye to the past and welcome the future. One of the most famous woodblock(木刻版画) New Year paintings comes from Yangjiabu of Shandong Province. It covers all kinds of themes and forms. They reflect people’s everyday life.
As time went by, people found New Year paintings old-fashioned. Besides, they considered the door god too scary to hang in their homes. They wanted something more artistic. So in the middle of the 1980s, the sales of New Year paintings dropped greatly.
Usually, colorful woodblock New Year paintings are produced in four steps. Firstly, artists draw a simple sketch(素描) on the paper. Secondly, they make the simple sketch on the wood board and print a few samples(样品). Thirdly, they add color to the sample. Lastly, when the preparation is finished, the printers paint color on the color board, and then put paper on the wood board and brush the paper. Then the colorful woodblock New Year paintings are ready.
There are four main themes in the Chinese New Year paintings...
1. Which is the first form of Chinese New Year Painting?A.A picture of babies. | B.A picture of a door god. |
C.A picture of women. | D.A picture of the Kitchen God. |
A.Because they wanted something that was more artistic. |
B.Because they found New Year paintings unimportant. |
C.Because they thought the door god couldn’t bring good luck. |
D.Because they found it hard to produce New Year paintings. |
A.The history of Chinese New Year Painting. |
B.The development of Chinese New Year Painting. |
C.The process of creating Chine New Year Painting |
D.The introduction to main themes of Chinese New Year Painting. |
【推荐3】Shopping for clothes is not the same for men as it is for women.
For a man, some problems may begin when the shop does not have what he wants.
For a woman, it is different.
A.I know this jacket is not what you really want. |
B.It’s right to spend some time choosing clothes before buying. |
C.At that time, the salesman tries to sell the man something else. |
D.Most of the time, she goes shopping not because she needs something. |
E.Most women are always looking for bargains(便宜商品) with their girl friends. |
F.Most men don’t like to go shopping. |
G.A man goes shopping because he needs something. |
![](https://img.xkw.com/dksih/QBM/2018/6/18/1969740414001152/1972290893062144/STEM/a85e793baf1f4dba80dba3b0943737dd.png?resizew=207)
Some scientists say that animals in the ocean are
increasingly threatened(威胁) by noise pollution caused by
human beings. The noise that influences sea animals comes
from a number of human activities. It is caused mainly by
industrial underwater explosions(爆炸) , ocean drilling, and
ship engines. Such noises are added to natural sounds.
These sounds include the breaking of ice fields, underwater
earthquakes, and sounds made by animals themselves.
Decibels (分贝) measured in water are different from those measured on land. A noise of one hundred and twenty decibels on land causes pain to human ears. In water, a decibel level of one hundred and ninety five would have the same effect(效果).
Some scientists have proposed setting a noise limit (限度)of one hundred and twenty decibels in oceans. They have observed that noises at that level can frighten and confuse whales(鲸鱼).
A team of American and Canadian scientists discovered that louder noises can seriously injure some animals. The research team found that powerful underwater explosions were causing whales in the area to lose their hearing. This seriously affected the whales' ability to exchange information and find their way. Some of the whales even died. The explosions had caused their ears to bleed.
Many researchers whose work depends on ocean sounds object to a limit of one hundred and twenty decibels. They say such a limit would mean an end to important industrial and scientific research. Scientists do not know how much and what kinds of noises are harmful to ocean animals. However, many scientists suspect that noise is a greater danger than they believed. It’s time for them to take action to help ocean animals.
1. Which of the following is not caused by human beings?
A.The noise of industrial underwater explosions. |
B.The noise of ocean drilling. |
C.The sound of underwater earthquakes |
D.The noise of ship engines. |
A.The same noise measures differently on land and in the ocean. |
B.Different places may have different types of noises. |
C.The noises can cause humans to lose hearing. |
D.There are different kinds of natural sounds in the ocean. |
A.Powerful underwater explosions aren’t harmful to whales’ ears. |
B.Many researchers are against the noise limit of 120 decibels. |
C.Noises cannot cause whales’ death. |
D.The noise limit of 120 decibels would hardly influence the industrial research. |
A.work hard to cut down natural sounds. |
B.stop industrial and scientific research in oceans. |
C.try their best to make no noise. |
D.protect ocean animals from harmful noises. |
![](https://img.xkw.com/dksih/QBM/2021/5/2/2712446739513344/2721004256264192/STEM/f07316c5fe73494990884f69c0038b0e.png?resizew=22)
Plastic is one of the biggest polluters in our environment. And Coca-Cola was named the world’s number one plastic polluter in 2020. The Coca-Cola company is finally taking action to deal with this growing problem.
Though plastic is very useful, it is also an “alien” material to Earth, because the soil cannot turn plastic back into CO2 and water. And this is not the only problem. When plastic finally does degrade (降解), thanks to the sun, it produces greenhouse gas emissions (排放物) and harmful chemicals into the environment, only making the climate even worse.
The Coca-Cola company is working with a Danish company to create 100% recyclable soda bottles instead of plastic ones.
Creating a paper bottle is challenging. The paper bottle must still follow the same safety standards as the plastic bottles. The carbonated liquid (碳酸液体) in the paper bottle needs to be tested in different environments. Moreover, the paper has to meet the needs of different shapes and sizes for different brands.
The first paper bottle will be tested in Hungary this summer. The bottle is made of a single piece of material instead of separate parts, which would make the bottle weaker. Because paper cannot come into direct contact with the drink, the bottle still includes a (recyclable) plastic inside and cap. However, how to make the paper cap is still unclear yet.
Even if the paper bottles are successful, it will be some time before companies use them instead of plastic that is cheap and easy-to-produce. However, Coca-Cola’s steps are still steps towards a brighter future.
1. What can we know about plastic according to the passage?A.Plastic is a kind of special alien material. |
B.Plastic bottles are less useful than paper bottles. |
C.The Coca-Cola company made plastic the biggest polluter. |
D.Plastic can’t be turned back into CO2 and water in the soil. |
A.tell us what the environment is like now |
B.explain why Coca-Cola is making paper bottles |
C.recommend us not to use plastic bottles any more |
D.introduce the situation of environment in 2020 to us |
A.They follow new safety standards. | B.They will be put into use this summer. |
C.It’s more expensive to use paper bottles. | D.Each part of the bottles is made of paper. |
A.different tests on paper bottles | B.high technology in making paper bottles |
C.efforts in protecting the environment | D.confidence in dealing with plastic pollution |
【推荐3】Why do we like drinking water from plastic bottles? Some people think it is healthy and clean. Others drink bottled water because it's easy — you can carry it around with you. In hot countries, like Greece, we often buy bottles of cold water in the summer.
However, making lots of plastic is not a good idea for many reasons. First of all, we need a lot of oil for plastic products. We usually use oil as a source(资源) of energy. If we reduced the number of bottles we made, we wouldn't need so much oil. Plastic bottles also pollute the environment. If we recycled all our plastic bottles, we wouldn't need so much space for rubbish dumps. But in Greece, we don't recycle much of the plastic we use. In 2006, Greeks recycled only about 10% of plastic waste. The rest became rubbish on land and in rivers and seas.
So next time you want to throw away a plastic bottle in the litter bin, stop and think. If you recycled it, you would help the environment. But what can you do when there isn't a recycling bin near you? Well, there are lots of useful ways that you can use your bottles again. For example, an empty bottle makes a great piggy bank for your pocket money, and if you cut a bottle in half, you will have a plant pot. Go green! You can make a difference.
1. What is NOT mentioned about bottled water in this passage?A.It's healthy. | B.It's clean. | C.It's easy. | D.It's expensive. |
A.energy | B.oil | C.rubbish | D.plants |
A.90% | B.50% | C.80% | D.10% |
A.To drop them into the river. | B.To make a piggy bank. |
C.To make a plant pot. | D.To recycle them. |
A.To make a different life, you'd better go outside. | B.To look different, you'd better wear green clothes. |
C.To protect the environment, you can do something. | D.To go green, you should use plastic products. |
【推荐1】Do kids need homework? Some of our readers say that homework reinforces (加强) what they learn in class. Others say homework adds to students’ stress and takes time away from exercise. Here are some students’ opinions.
When kids learn something new in school, reviewing (复习) it at home helps them remember it. Our homework gives our teachers valuable information. It tells them how much students are paying attention (注意) in class and who needs more help. —Peter
Kids are learning for six hours a day at school. Adding another hour of work for kids to do at home is just having them repeat (重复) what they’ve been doing all day. What’s more, homework takes time away from activities like team sports, hobbies, exercise, and playing. These are just as important as schoolwork. Homework just covers what they already learned in class. It’s pointless. —Mike
Kids need time after school for experiences that build a healthy mind and body. When homework heaps up (堆放) , students get stressed. And the quality (质量) of homework that a stressed-out mind produces (生产) is low. Doing homework poorly is worse than doing no homework. As long as students are working hard in class, it’s best not to give them homework. —Olivia
Homework takes time away from learning things that wasn’t covered in class. Homework should not be canceled (取消) completely. But students should be given less homework so they have more time for creative activities. —Nancy
根据语篇内容,选择最佳选项。1. Peter thinks homework is good for _______.
A.students and teachers | B.students and parents | C.parents and teachers |
A.粗心的 | B.不耐烦的 | C.无意义的 |
A.Kids don’t need homework. |
B.The more homework, the better grades. |
C.Giving students homework is necessary. |
A.Peter and Mike. | B.Olivia and Nancy. | C.Peter and Nancy. |
A.In a travel magazine. | B.In a school newspaper. | C.In a science book. |
【推荐2】The Earth is very important to us. But we don’t protect the Earth in some correct ways. Here are some easy things that you can do to protect the environment and the Earth.
Plant flowers, grass or trees. The plants can make the environment around you become beautiful. Also, more trees and plants can make the air clean.
When you visit a park or beach, take away what you bring there — keep rubbish in a bag until you can throw it into a dustbin (垃圾桶).
Turn off the tap when you brush your teeth. You can save some water by not letting it run all the time. Also, use a glass cup instead of a paper cup because this can protect forests.
Stop putting dirty water into the rivers or lakes. In this way, you can protect plants and fish in the rivers or lakes.
Ask all your friends to do the same things to help protect the Earth. You don’t have to wait for Earth Day to do these things. Make every day Earth Day.
If everyone does something good to protect the Earth, it will become more beautiful.
1. What does the underlined word “correct” in paragraph 1 mean?A.bad | B.good | C.wrong | D.right |
A.Not throwing away rubbish anywhere. | B.Saving water in daily life. |
C.Asking your friends to protect the Earth together. | D.Turning off the light when you don’t use it. |
A.Using paper cups can protect forests. |
B.Planting trees and plants can make the air dry. |
C.It is not necessary to keep rubbish in a bag when you visit a beach. |
D.Many people do something to protect Earth on Earth Day. |
A.Protecting the Earth is important. | B.How to protect the Earth. |
C.People are polluting the Earth. | D.How to make our friends protect the Earth. |
A.A storybook. | B.A cook book. |
C.An environment magazine. | D.A travel book. |
【推荐3】English is spoken as the first language by most people in the U.S.A., Britain, Australia, New Zealand, Ireland and Canada. However, English is spoken all over the world. It is the main language in over 60 countries, including India, Singapore and many of the Caribbean and Pacific islands. In these places, English is often spoken as the second language.
English is also an international language in many other countries, like China and Japan. People in these countries use it for business, and travelers to these countries use English to communicate when they get there. Other people may learn English because they enjoy reading books in English, listening to British or American music or watching American films.
English has changed a lot over the years and still goes on changing. It is no longer right to talk about British English or American English if the speakers come or don’t come from those countries. People in Japan and Korea, for example, may use the American spelling but may not sound like American.
English has been the most widely used language in the world by the end of the 20th century. This language no longer belongs to British, American or Australian speakers. It belongs to anyone in the world. So, as a middle school student today, you should think about how you can use this language. After you leave school, you will almost certainly need it.
根据材料内容,选择最佳答案。
1. English is spoken as their ________ language in the U.S.A., Britain, Australia and so on.
A.second | B.mother tongue | C.first | D.foreign |
A.stays the same | B.has changed |
C.has discovered | D.stays different |
A.British; Englishmen | B.British; American |
C.American; Englishmen | D.American; American |
A.English is also an international language in many other countries. |
B.English is the main language in over 50 countries. |
C.English has been widely used by the end of 19th century. |
D.Some people may learn English because they want to write books. |
A.English is spoken only in European countries |
B.some travelers must learn English when they travel to the English-speaking countries |
C.the English language no longer belongs to British, American or Australian speakers |
D.people in Japan and Korea may use the British spelling |