Look at the Earth from space. Why does our planet look so blue? It’s blue because water covers almost three quarters (四分之三) of the Earth’s surface. Water is not just an important part of our planet. It is an important part of our body, too. More than half of our total (全部的) body weight is water.
Our body loses water whenever we exercise or go to the toilet. That’s why we need to drink plenty of water every day. We drink water. We use it to cook, clean, and carry waste out of our homes. Farmers use it to grow vegetables and crops (庄稼) like rice and wheat; factories use it to make products.
Since the 1950s, the amount (数量) of water people use has increased by three times. But the water supply (供应) hasn’t. Scientists worry that soon there won’t be enough water for us, as well as for the animals and plants that share our world. What can we do to help? Use water wisely.
Having enough water isn’t our only problem. We also need it clean.
Right now, ships and factories are putting wastes into seas, rivers and so on. Even chemicals (化学制品) that farmers use are running into rivers and lakes. All this pollution can make the water dangerous to drink. It can also harm fish and other water-living lives. We must do something to stop pollution. It’s the best way to protect our world’s most valuable natural resource (资源).
1. ________ of the Earth’s surface is covered by water.| A．Almost 50% |
| B．Less than 50% |
| C．Almost 75% |
| D．Over 75% |
| A．One. |
| B．Two. |
| C．Three. |
| D．Four. |
| A．we don’t have enough water to use since the 1900s |
| B．there are more people than before |
| C．there will be less animals in the future |
| D．it’s necessary for us to save water in our daily life |
| A．To ask people to value water. |
| B．To introduce the uses of water. |
| C．To advise people to drink more water. |
| D．To describe the situation of water supply. |
相似题推荐
【推荐1】Don’t use plastic (塑料) bags. We should plant trees and save water. These are some common ways to protect the environment (环境). Here are some new and cool ways around the world.
Clean the air
There is a kind of plant (植物) in Iceland. It takes in CO2 (二氧化碳) in the air. Then, it mixes (混合) CO2 with water. It can take in about 4,000 tons of CO2 every year.
Potty time (厕所时间) for cows
Cows usually pee and poop (大小便) everywhere. It’s bad for the soil (土壤) and water. It is better if cows can pee and poop in one place. People are training (训练) some cows to do so. When the cows pee and poop in the right place, they get some food. If not, people throw (抛) water on them.
No-meat menu
Meat is delicious. But farm animals make greenhouse gases (温室气体). Some schools in Germany have meat-free menus for students. These menus have a lot of vegetables and a little fish. They help to protect the environment, too.
1. What does the underlined word “protect” mean in Chinese?| A．发展 | B．保护 | C．调控 |
| A．3. | B．4. | C．5. |
| A．In Iceland. | B．In China | C．In Germany. |
| A．Water. | B．Food. | C．Meat. |
【推荐2】Recently, the term “carbon neutral(碳中和)” has been used frequently at some important meetings in many countries. Many countries have put forward the goal of striving( 奋斗目标 )to be carbon neutral. China is expected to be carbon neutral by 2060. So, as middle school students, what can we do to protect the environment and live a low carbon life? Here are some suggestions for you.
Travel in a green way. Now more Chinese people have cars of their own. It has brought us a lot of benefits but has created some serious problems as well. So we had better do more walking, cycling, taking a bus and less driving. By doing so, we can save energy and reduce pollution.
Cut down white pollution. We should reduce the pollution of plastic bags. When you go to the supermarket, bring your own shopping bags.
Save water. Lack(缺乏)of water resources will affect the ecological environment(生态环境). So please turn off the tap after using it.
Sort(分类)the rubbish. Doing garbage classification(垃圾分类)in a right way can turn waste into wealth.
Plant more trees. Planting more trees means cutting down and reducing the carbon footprint(足迹)and spreading of greenhouse gases.
Use both sides of the paper. The paper production process uses a lot of trees.
Now is the time that we should take up our responsibility to protect our environment from being polluted. Let’s join our hands and take actions immediately.
1. According to the passage, which way is bad for the environment?| A．Walking. | B．Driving. |
| C．Riding a bike. | D．Taking a bus. |
| A．air pollution | B．water pollution |
| C．noise pollution | D．plastic pollution |
①use plastic bags while shopping ②use only one side of the paper
③do garbage classification in a right way ④turn off the water after using it
| A．①② | B．③④ |
| C．①③④ | D．①②③④ |
| A．Six. | B．Five. | C．Four. | D．Three. |
| A．Save the world. | B．Sort the rubbish. |
| C．Live a low carbon life. | D．Travel in a green way. |
【推荐3】In the US, people are celebrating Arbor Day today, the last Friday in April. This holiday encourages(鼓励) people to plant and care for trees.
Not just the US thinks trees are important, other countries, such as Korea and South Africa, celebrate national tree days for a week! And India has a national planting(植树) festival every July.
Why do so many countries think trees and plants so important? What’s so important about trees? Trees make oxygen(氧气), which we need to live. Tree leaves also clean the air keeping us healthier. Trees also help stop dangerous and slides(滑坡) and they can even help stop water loss.
Trees are very important for city life, too. For example, if there are many trees in a place, there are fewer crimes(罪犯). And living near “green spaces”(parks with trees and plants), there will be fewer sick children.
Finally, people believe that spending time with trees in nature can help to relax and also make the stress lower. Some even call this “forest showing”. The time with green trees may even improve one’s immune system(免疫系统) and make our body stronger.
So maybe you should put your arms around a tree today — or at least sit quietly under one!
1. Arbor Day ______________.| A．is about planting and caring for trees. |
| B．is on the third Friday of April. |
| C．lasts for a week in the US. |
| A．If there are many trees in a place, there are no crimes. |
| B．Tree roots(根) can help to make oxygen and also clean the air. |
| C．If we plant more trees, there will be fewer landslides and less water loss. |
| A．relaxing and making the stress lower |
| B．taking a shower in the forest |
| C．spending time in nature |
| A．People in different countries have different ideas about plants and trees. |
| B．Plants and trees are important and many countries think them important. |
| C．There are some new studies about trees and plants.. |
| A．There are more trees in the countryside(乡村) than in the city. |
| B．Every country has a national planting festival. |
| C．People will plant more trees for a healthy life. |
【推荐1】Our factories and homes burn coal and oil. Every year we have forest fires somewhere. Many scientists believe that the weather is changing.
The earth will perhaps be warmed by about 7℃ at the South Pole（极）and the North Pole. The ice will be melt（融化）, The sea level will rise by about 7 meters. As a result, water will cover cities like London, Tokyo and New York. Some ports（港口）and towns along the coasts will disappear under water.
Some other scientists think that the dust, smoke and pollution from coal, wood and oil fires will block out（封闭）the ultraviolet rays（紫外线）. Then the earth will become colder and great sheets of ice will cover Europe and North America.
When chemicals in the air mix with rain, we have acid（酸）rain. Acid rain can bring us great harm. It destroys（破坏）forests and kills life in lakes and rivers.
1. Some scientists believe that we can find oil in our forests.| A．Right. | B．Wrong |
| A．Right | B．Wrong |
| A．Right. | B．Wrong. |
| A．Right. | B．Wrong |
| A．Right. | B．Wrong. |
【推荐2】Are you a tea drinker? If so, you’re not alone. Every day millions of cups of this popular drink are drunk around the world, and it has been that way for thousands of years.
Tea can be poured from pots or brewed(冲泡) in the cup using tea bags. And it’s this second way that is causing people to worry. Research last year found some expensive tea bags might be leaving billions of microscopic plastic particles(微塑料颗粒) in the cup. Scientists from Canada found that some tea bags dropped high levels of microplastic into water. However, the World Health Organization said such particles in drinking water did not appear to be dangerous.
Most tea bags are made of paper, with a little plastic used to seal(密封) them shut. This has also led to discussion about whether they can be recycled. Many tea bags are composted(制成堆肥) now. However, the gardener Mike Armitage told the BBC that the plastic in the soil could be washed into streams and rivers and finally out to the sea.
But there’s good news too. Unilever, the owner of the tea brand PG Tips, says their tea bags are made with a little plastic and that they are suitable for composting. And the brand Yorkshire Tea says their tea bags do have plastic, but they’re actively developing recyclable things to replace the plastic.
1. What can we learn from Paragraph 1?| A．Tea has a long history. | B．Tea is more popular now than before. |
| C．Many people prefer tea bags. | D．People drink tea in many ways. |
| A．Tea bags cost too much. |
| B．Tea bags don’t taste good. |
| C．Tea bags don’t sell well. |
| D．Tea bags leave billions of microscopic plastic particles in the cup. |
| A．Plastic. | B．Paper. | C．Silk. | D．Tea leaves. |
| A．They shouldn’t be produced. | B．They should be recycled. |
| C．They could cause water pollution. | D．They are suitable for composting. |
| A．Tea bags are facing an uncertain future. |
| B．Plastic pollution is still a big problem around the world. |
| C．Actions must be taken to prevent water from being polluted. |
| D．Tea bag producers are trying their best to reduce plastic pollution. |
In China, each year there is about 150 million tons of city waste according to a report. Where does the waste go? People usually burn or bury (埋) it. We also get waste from some developed (发达的) countries. We get useful materials from it.
Waste pollutes the Earth, harms people’s health and causes animals to die. It also gets in the way of green and sustainable development (阻碍可持续发展).
The Chinese government is encouraging people to do waste sorting (分类). Many tech (科技) companies are making waste-sorting robots. The future of the waste-sorting looks good. But it’s not the best way.
| A．China is getting really serious about waste now. |
| B．China also tries to put waste into good use. |
| C．What about the useless part? |
| D．We shouldn’t make money at the cost of the future of the Earth. |
| E．The government has made laws to deal with the waste. |
| F．A large number of cities have their own sorting systems. |
| G．The best thing we can do is to make less rubbish in the first place. |
【推荐1】More people are buying tickets over the phone or the Internet for travel and other things. Not only are people doing their shopping electronically, but also many businessmen are giving “electronic tickets” or “e-tickets” to the buyers.
The most common use of electronic tickets today is for air travel. Airlines have surely removed paper tickets by asking more money for them than for electronic tickets. Although some companies offer the choice to buy tickets online, these tickets aren’t electronic. Because anyone can use them to hold the ticket for travel or entrance.
People usually buy electronic tickets online, over the phone or from travel businessmen. A system online or over the phone will tell you that the ticket is electronic. It will ask you to offer some personal information. You’ll receive a confirmation（确认）number showing your buying. You should keep this number.
The system will also tell what you must show at the time of travel or the event. Photo identification（身份证）, such as ID card, confirmation numbers and credit cards（信用卡）will be necessary. Make sure that you have the right ID. On the day of the travel or the visit, you will use it often.
1. The most common use of electronic tickets today is for ________.| A．air travel | B．space travel | C．train travel | D．bus travel |
| A．People usually buy electronic tickets in shops. |
| B．People only use e-tickets in air travel companies. |
| C．A system online will ask you to offer some personal information. |
| D．You can forget the confirmation number. |
| A．What Are Paper Tickets | B．What Are Electronic Tickets |
| C．How to Shop Online | D．Where to Buy Electronic Tickets |
【推荐2】Now, there are many emojis (表情符号) on the Internet. Many people like to use them when they are talking with others with their phones.
In Japan, people used emojis first. But now more and more Chinese also like to use emojis on QQ and WeChat. You can see them on people’s phones or computers. Some Chinese even use pillows (枕头) with pictures of these interesting emojis, such as the emoji “Funny”.
Do you like emojis? Do you want to have emoji pillows? Emoji pillows attract many people in the world. They are interested in these emoji pillows and they buy them on the Internet. Amy, a girl from the UK, said, “I think emoji pillows are very interesting. When I see them, I feel very happy.”
1. People used emojis first in ________.| A．China | B．Japan | C．the UK | D．the US |
| A．Only on QQ | B．only on WeChat | C．on QQ and WeChat | D．at home |
| A．打击 | B．帮助 | C．拯救 | D．吸引 |
| A．She likes emoji pillows. | B．She makes emoji pillows by herself. |
| C．She hardly (几乎不) uses emoji pillows. | D．Emoji pillows make Amy sad. |
| A．How to make emojis | B．Emojis in Japan |
| C．Emojis and Emoji pillows | D．People’s phones |
【推荐3】It’s often said, “You can’t live only on air.” But now the Chinese scientists can tell you: Maybe you can.
Recently, some Chinese scientists have made a big breakthrough (突破). They turned CO2 into starch (淀粉).
Starch is the main part of rice and corn that we eat every day. Usually, it’s created by plants with CO2, water and sunlight. According to the team’s director Ma Yanhe, it takes the plants nearly sixty steps to produce starch. But now, the team, after six years of hard work, has found a simpler way to do this, with only eleven steps.
“Our study shows that creating something like starch is possible in a laboratory, and this technology may be helpful in many areas,” said Ma.
The scientists first turned CO2 and hydrogen (氢气) into methanol (甲醇). Then they made these methanol molecules (分子) into bigger and more complex (复杂的) molecules. Finally the starch came out.
This method makes it possible to produce food in factories instead of traditional farming. This will not only help make plenty of food, but also save water and land. It may also help recycle CO2 to deal with climate (气候) change, according to China Daily.
The study can be helpful in space, too. Astronauts may no longer need to worry about their food as they travel in space. They may simply turn the CO2 they breathe out into the food they eat!
1. What achievement have the Chinese scientists made recently?| A．They created starch with CO2. |
| B．They grew corn in space. |
| C．They turned O2 into starch. |
| D．They improved traditional farming. |
| A．3. | B．6. | C．11. | D．60. |
| A．They recycled CO2 in space. |
| B．They produced rice and corn on the farm. |
| C．They turned CO2 and hydrogen into methanol. |
| D．They made methanol molecules into bigger and more complex ones. |
| A．making food |
| B．putting sunlight to good use |
| C．saving water and land |
| D．dealing with climate change |
| A．How to Deal with CO2 |
| B．The Advantages of Making Starch |
| C．How to Make Food in Space |
| D．China’s First Step in Man-made Food |
