The World is in Danger
Our world is in danger. We must do something to protect the environment. But what are the main problems we face?
The greenhouse effect
The atmosphere (大气层) around the Earth is necessary for all living things. It is like the glass of a greenhouse, letting sunlight in and keeping heat from getting out. Without it, the Earth would be the same as the Moon—cold and lifeless.
When we burn fuels (燃料) such as petrol and coal, we produce a gas called carbon dioxide (CO₂). Too much of this gas pollutes the atmosphere, and causes it to keep in too much heat. As a result of the greenhouse effect, the Earth’s temperature is increasing. This causes sea level to rise, and in the future may cause cities to disappear.
Cutting down forests
Every year, we destroy (破坏) nature by cutting down many forests. This makes the greenhouse effect worse because trees take in CO₂ and produce oxygen (O₂). Cutting down trees also destroys the homes of animals that live in forests, and causes the surface of the soil to be easily destroyed by rain. This can result in floods and even more damage (伤害) to the environment.
Bad habits
Many of our habits cause pollution. People often use things once and then throw them away, or leave them on the ground as litter. To protect the environment, we need to take proper action. We should be different from many consumers and become “green consumers”. This means that we should only buy and use products friendly to the environment. We should also recycle as many things as we can. We can reuse things for the same purpose as before, or we can use them for new purposes. Then, we can make a difference.
1. Why is the atmosphere around the Earth necessary for all living things?| A．Because the Moon is cold and lifeless. |
| B．Because it is like a greenhouse. |
| C．Because it lets sunlight in and keeps heat from getting out. |
| D．Because with it the Earth is cold and lifeless. |
| A．Many seaside cities may disappear. | B．The atmosphere keeps in too much heat. |
| C．The Earth’s temperature will rise. | D．The sea level will increase. |
| A．People who make friends with green consumers. |
| B．People who sell products friendly to the environment. |
| C．People who buy products nice to the environment. |
| D．People who recycle as many things as they can. |
| A．To tell us what to do in the future. |
| B．To teach us why and how to protect the environment. |
| C．To inspire us how to make a difference. |
| D．To encourage us to live in new and different ways in the future. |
相似题推荐
【推荐1】Have you ever heard the idea that you need eight glasses of water a day? In fact, it won’t make you brighter and it won’t make you feel clear. It might, however, make you have to go to the washroom a lot.
Many people don’t understand the biology（生物学）behind their bodies. The fact is that when you understand how your systems work, you’re able to make better decisions.
For the most part, your body will tell you when you need to drink water because you’ve got these wonderful and surprising things-kidneys （肾脏）. Your body is an environment where everything needs to be in a good balance（ 平衡）. If levels of anything get too high or too low， then it is the job of the kidneys to keep them just right.
Imagine you are running for a long time and you’re losing water, then it may lead to dehydration. And then you’ll do whatever you need to get some water. So thanks to your kidneys, your body is really good at keeping water.
But if you stop counting eight glasses of water a day, how much should you drink? The answer is: there is no should. In fact, everything you have has water—an apple has water, so does your breakfast. So as long as you’re thirsty, trust your body.
1. Why does the writer call kidneys wonderful and surprising things in paragraph 3?| A．Because they are able to make better decisions. |
| B．Because they keep everything in our body in a good balance. |
| C．Because they can make us brighter and clearer. |
| D．Because they can count how many glasses of water we drink. |
| A．脱水 | B．瞌睡 | C．劳损 | D．多汗 |
| A．After we have breakfast. | B．Before we go for a run. |
| C．When we feel thirsty. | D．As soon as we get up. |
【推荐2】Instead of gobbling(狼吞虎咽) your food, try eating more slowly. It may help you drop those unwanted pounds. The conclusion is from a new study by Chinese researcher.
The study showed that compared with people who gobbled their food, those who ate at a normal speed were 29 percent less likely to be obese(肥胖的). But those who ate slowly were up to 42 percent less likely to obese. In addition, people who ate slowly tended (往往会) to be healthier and have a healthier lifestyle than those who ate quickly or at a normal speed. “However, this study could not prove that speed eating causes or stops obesity,” the researcher noted.
"Slow eating has its advantages and a few disadvantages ,” said Samantha Heller from New York City. “on the one hand , slow eating gives our body time to register a sense of satisfaction and fullness, so we eat less. We are more likely to enjoy a taste of food. On the other hand, the longer people sit in front of food, the more food they will eat, ”she said.
“Speed eating appears to be far more harmful. People who eat quickly, as many of us do, gobble far more food than they need. In many European countries, slow eating is a way of life,” Heller said. In America, speed eating takes the lead. Thus we need to encourage people to have a change, learn the way of slower eating from Europeans and get a true enjoyment of food.
1. The researchers who found eating slowly may help you drop pounds come from ______.| A．America | B．Japan | C．Europe | D．China |
| A．People who eat slowly. | B．People who eat little. |
| C．People who eat at a normal speed. | D．People who eat quickly. |
| A．意识到 | B．注册 | C．缺乏 | D．抵制住 |
| A．People who ate slowly tended to be healthier than those who ate quickly. |
| B．It is sure that eating quickly can cause obesity. |
| C．Speed eating is harmful to us. |
| D．The longer you sit in front of food, the more food you will eat. |
| A．The ways of avoiding being obese | B．the ways of eating slowly |
| C．why we should try eating more slowly | D．the disadvantages of being obese |
【推荐3】Do you love sweet food such as milk tea or chocolate（巧克力）? If you love chocolate, now you have a reason（原因）to eat it! According to a new study（研究）, if you eat a kind of dark chocolate 3 times（次数）a day, you can really be happy.
Scientist did a study. They make 46 healthy people into three groups. Every day for three weeks, Group 1 eat no chocolate; Group 2 eat 3g of 85% dark chocolate and Group 3 eat 30g of 70% dark chocolate,
From the study, people from Group 2 are very happy. But the other two groups are not. Why? Scientists found more Blautia in Group 2’s gut（肠道）. Blautia is a kind of bacteria（细菌）. It helps make people feel good. But scientists say you need to make sure it’s 85% dark chocolate. Milk chocolate can do the same, but it is bad for your health because it has too much fat and sugar.
So next time when you are not happy, have some 85% dark chocolate. It may take away your blues.
1. How many days does this study last?| A．3. | B．21. | C．46. |
| A．30% | B．70% | C．85% |
| A．There is more Blautia in Group 3’s gut |
| B．Eating milk chocolate can make us happy |
| C．If you eat sweet food 3 times a day, you will be really happy |
| A．蓝色 | B．忧郁 | C．快乐 |
| A．science magazine | B．history book | C．food ad |
【推荐1】What does global warming bring to us? Drier land, melting ice, strange weather, and...less sleep! It found that people are losing 44 hours of sleep every year. And that’s because of higher temperature（温度）. By the year 2100, people will lose about 50-58 hours of sleep a year.
Yes, temperature have something to do with our sleep. Did you ever find it hard to fall asleep on hot summer night? Our body temperature is around 37℃, but it drops by 2℃ at night. The drop starts about two hours before we go to sleep. During sleep, our body temperature keeps dropping. It gets a low point in the early morning. But when the weather is hot, the body will find it harder to cool down. That’s why we can’t get enough sleep.
As the saying goes, “A good laugh and a long sleep are the best cures（疗法）in the doctor’s book.” It’s time to take action to save Earth as well as our sleep!
1. What’s the structure of this passage?A． | B． | C． |
| A．How long will people sleep by 2100? | B．What is the body temperature in the morning? | C．When does the body temperature begin to drop? |
| A．Sleep just has something to do with the temperature. | B．People may sleep longer in winter than in summer. | C．Our body temperature is higher when we wake up than that when we go to sleep. |
| A．Walk to school more often. | B．Have at least 8-hour sleep every day. | C．Do more exercise. |
| A．Ways to sleep well. | B．Enough sleep, happy life. | C．Warmer weather, less sleep. |
| A. Hazardous Waste Dustbin. It contains waste involving risk or danger, especially dangerous to people’s health or safety but not including medical waste. B. Residual Waste Dustbin. It collects china, pottery, used and polluted things like dirty tissue, dirty diapers, one-off meal boxes and so on. C. Household Food Waste Dustbin. It is used to collect kitchen waste like skins of fruits, egg shells, leaves of plants etc. D. Recyclable Waste Dustbin. It is used for collecting all kinds of environmental-friendly and recyclable materials including paper, metal and so on. E. Medical Chemical Waste Dustbin. Used chemical reagents (化学试剂),used chemical disinfectant (化学消毒剂)are collected here. F. Medical Infection Waste Dustbin. It collects anything used for preventing virus infection like masks worn by people and one-off plastic medical devices in hospitals. G. Medical Contaminated Sharp Waste Dustbin. Used chemical needles, scissors, knives and so on are put in this dustbin. |
The temperature in the wetlands is usually neither too high nor too low. There is a lot of rain and sunshine, too. They are really good places for wildlife. Offering food and home for some special kinds of animals and birds is not the only reason why we need to protect wetlands. Wetlands are important because they also prevent flood. But some people want to change the wetlands to make more space for farms and buildings. This means there will be less and less space for wildlife.
Luckily, more and more people are beginning to realize the importance of wetlands and wildlife. Every year, on February 2, people hold many activities to tell more about wetlands.
1. The Chinese Yellow Sea Wetlands are in the of China.
| A．east | B．south | C．west | D．north |
| A．hot | B．pleasant | C．cold | D．dry |
| A．April 22 | B．June 25 | C．February 2 | D．March 22 |
| A．China’s wetlands have all entered the world’s list |
| B．Wetlands—home for wildlife and humans |
| C．Special animals in the Chinese Yellow Sea Wetlands |
| D．Wetlands—valuable resources（珍贵资源）of land on the earth |
【推荐1】Some of you may play Ant Forest. It is a game on Alipay. Users collect “energy” to make their “trees” grow. When the “energy” reaches a certain level, some organizations and companies will plant a real tree in a desert area of China. And now it seems that the nation’s efforts as a whole to make a greener world have paid off.
According to a study by NASA and published in the journal(杂志) Nature Sustainability in February, China and India are mainly responsible for making the Earth greener over the past twenty years. The study has found that since 2000 the Earth’s green leaf area has increased by 5 percent(百分之……), or over 5 million square kilometers. That’s an area equivalent(等同于) to the total area of the Amazon rainforest. It is mainly the result of big tree planting programs in China and intensive(精耕细作的) agriculture(农业) in both countries, according to NASA.“China and India account for(占比) one third of the increased greening but contain(包含) only 9 percent of the planets land area covered in vegetation(植被).” Chi Chen, the study’s lead author and a researcher at Boston University, US, told CNN. China was the major contributor(贡献者), adding 25 percent to this increase, while India added 6.8 percent.
Over the past 40 years, China has made great efforts to green the land. In 1978, China began a national-level forestation project—the Three North Shelterbelt Forest Program, also known as the “Great Green Wall”. The program has seen many trees planted in northern China to act as windbreaks, according to China Daily. By the end of 2017, the forest coverage rate(率) among the places of the project had reached 13.57 percent, compared to 5.05 percent 40 years ago.
For example, Kubuqi Desert, which is near the Yellow River in Inner Mongolia, is the seventh largest in the country. It was once the source(来源) of sandstorms in Beijing. But thanks to forestation efforts, about one third of Kubuqi Desert is now covered with trees, and sandstorms are less common, reported Xinhua News Agency.
In the light of China’s success in dealing with desertification, the United Nations Environment Program (UNEP) believes China is a good example for others to follow. “China is one of the most successful countries in greening the desert and has lessons to share with the world.” UNEP Executive Director Erik Solheim told Xinhua.
1. When the users of Ant Forest collect enough “energy”, ________.| A．a tree can be planted in the game | B．they can go to the desert and plant a tree |
| C．a tree in the desert will be named after them | D．an organization or a company will plant a tree in a desert |
| A．It was a project led by Indian government. | B．This project started in 1978 and completed in 2017. |
| C．Trees were planted to provide protection from the wind. | D．The forest coverage rate of China increased about 8.5%. |
| A．To suggest that other countries learn from China’s actions. | B．To call for more efforts to make the Earth greener. |
| C．To state that China has been playing a leading role to increase green land. | D．To prove that the green leaf area on the Earth has been decreasing rapidly in recent years. |
【推荐2】Qingming Festival (Tomb Sweeping Day) is a traditional Chinese festival for families to pay respect (尊敬) to their ancestors. People visit their ancestors’ grave sites and offer food, drinks and flowers. The festival falls on April the fourth this year. There are some Chinese poems that offer clues to Chinese history and culture through ancient expressions. Here we look at one of the classic poems in the history of Chinese literature:
In China around the time of Qingming Festival, there is more rain. The poet is traveling far away from home on these rainy days. The rain and lonely walks lead to the separation of the soul and body, which adds a sad mood to this poem. The writer, Du Mu describes a rainy scene in a village in the first two lines. Then in the last two lines, the poet wants to find a place to take a rest, drink some wine (酒) and get rid of the sad mood. Where can I find a good tavern? In the last line, a cowherd points to a direction, which vividly depicts (生动描绘) two people looking far ahead on the rainy day.
Mourning Day
Drizzling rain falls like tears on the Mourning Day,
The mourner’s heart is going to break on his way.
Where can a wineshop be found to drown his sad hours?
A cowherd points to a cot amid apricot flowers.
(Translated by Xu Yuanchong, Chinese translator)
In this poem, Du Mu presents a village with apricot flowers around as the direction of the tavern. He doesn’t describe its details on a rainy day but leaves it to the readers’ imagination.
Qingming is not only a sad festival, but can also be a happy time for people to enjoy the spring and get closer to nature in an outing. Trees are green and flowers are blooming, so it’s a good time to be outside.
1. The Chinese title of this poem is ________.| A．《清明》 | B．《咏柳》 | C．《春望》 | D．《秋思》 |
| A．snowy | B．windy | C．cold | D．rainy |
| A．make friends | B．eat some food | C．drink some wine | D．buy a raincoat |
| A．a boy sits on the cow | B．a place where the cow lives |
| C．a person who herds (放牧) the cow | D．a place where the cow eats grass |
| A．offer food, drinks and flowers to old people |
| B．pay respect to our ancestors and enjoy the spring |
| C．feel sad all day and drink some wine with family |
| D．find a beautiful place with a lot of flowers around |
【推荐3】Being outgoing is good for your life. Those who are more outgoing like to meet lots of people and have more fun in life. In fact, being outgoing is not so difficult as you think. Even shy people can be outgoing.
You can start becoming outgoing with your best friend or a group of friends. But the real challenge (挑战) comes when you meet strange (陌生的) people or new friends. Smile more, and usually they will return (回以) your smile. In this way, you may have some talks.
Start a talk. Just a simple “Hello” or “How is it going” is a good start. If you want to make interesting talks, you should read news in the newspapers and prepare (准备) your ideas, or surf the Internet for new information and then keep that in mind.
The easiest way to become more outgoing is to go out. This is also the most important thing. Go to a park, beach, club, party or any other place that you think can be fun, and you may make new friends there.
1. You should start to be outgoing with ________.| A．your parents | B．your teachers | C．your best friends | D．your new friends |
| A．strangers or new friends | B．your best friend | C．lots of people | D．yourself |
| A．What’s the matter? | B．What’s your name? | C．How is it going? | D．Are you healthy? |
| A．talking | B．smiling | C．playing | D．going out |
| A．Being outgoing is really difficult. | B．Being outgoing is good for our lives. |
| C．Being outgoing helps people have more fun. | D．Being outgoing with stranger (陌生人) is not easy. |
