When you think of the Arctic (北极), you imagine an icy land of pure white snow. Others imagine it as the last really clean place left on the earth. We have polluted the deepest oceans with plastic rubbish. And now it’s the Arctic’s turn.
German scientists have recently found microplastics in Arctic snow. Microplastics are pieces of plastic smaller than 5 millimeters. Sadly, the scientists found 1,800 pieces of microplastics per liter of (每升) snow.
How is plastic pollution reaching the Arctic? According to scientists, “It’s clear that most of the microplastics in the snow come from the air.” They fall off things made of plastic and are moved by the wind, just like dust. They mix with ice in the air and fall to the ground as snow. Finding these plastics in Arctic snow means that we may breathe them in.
Are they bad for us? Scientists cannot answer this question for now, according to the WHO. We do know that our bodies cannot take in “large” pieces of microplastics. However, if the plastics are small enough, they can find ways into our bodies and stay there for a long time, which can be bad for our health. What’s more, earlier studies have shown that microplastics may contribute to lung cancer risk.
Microplastics have also been found in rivers and oceans around the world. Earlier research has found that they flow over long distances and into our oceans, hurting ecosystems along the way. They start in our wastewater, then flow into rivers and out to the sea, where they are eaten by sea animals. If people then eat these animals, it means that we’re eating the plastic as well.
1. What can we learn about the Arctic from Paragraph 1?A.It is an icy land of pure white snow. | B.It is a beautiful icy land with clean air. |
C.It has been polluted by plastic rubbish. | D.It is the last really clean place left on earth. |
A.增加 | B.捐献 | C.造成 | D.降低 |
A.By advising us to drink clean water. | B.By asking people not to eat sea animals. |
C.By showing the beauty of the Arctic. | D.By telling the seriousness of plastic pollution. |
相似题推荐
【推荐1】How do you feel about nature? After spending hours indoors, do you feel better when you visit your local park? I believe the answer must be “YES”.
Most people think that nature is good for our bodies and brains. However, humans are spending more time inside and less time outside. For example, the number of visitors to Canada’s national parks is getting smaller every year. And in countries such as the USA, only 10% of teenagers spend time outside every day. Many doctors feel thatthisis a problem in the twenty —first century.
Therefore, some doctors are studying the connection between nature and health: one example is the work of Dr. Matilda in Sweden. The doctor gave people a math test. During the test, their heart rates (心率) were fast. After the test, one group of people sat in a 3D-virtual-reality (虚拟现实) room for fifteen minutes with pictures and sounds of nature. Their heart rates were slower than people’s in the other group. The virtual touch with nature helped them feel more relaxed. The natural world allows our brains to rest and slow down, and can leave us feeling happier and less stressed. Another example from Canada also shows nature is good for health. In Toronto, researchers studied 31,000 people living in the city. In general, they found that healthier people lived near parks.
Because of studies like these, some countries and cities want people to enjoy nature in their everyday life. In Dubai, people plan to build a new shopping mall with a large garden, so shoppers can relax outside with trees, plants and water. And South Korea has new forests near its cities and around 13 million people visit these forests every year. Getting close to nature has been thought to be necessary for brain development in children. In Switzerland, “forest schools” are popular. School children study their subjects in the forests and exercise a lot outside. So after building cities for so long, perhaps it’s now time to start rebuilding nature.
In a word, nature holds a special kind of energy: it is clean, wild and spirit —renewing, which makes us grow stronger. ________
1. What does the underlined word “this” in Paragraph 2 refer to?A.People think nature is good for our bodies. | B.People spend more time inside than outside. |
C.Only teenagers spend time outside every day. | D.The number of people to parks is changing every day. |
A.People s heart rates increase in a 3D-virtual-reality room. |
B.The nature can relax people and influence them positively. |
C.The natural world allows our brains to rest and slow down. |
D.The virtual touch with nature helped them feel more relaxed. |
A.rebuilding nature near cities |
B.planning a green area for shoppers |
C.inventing a brain development programme |
D.having classes and doing sports in the forest |
A.So why not live in the nature? |
B.So why not let nature be part of our daily life? |
C.So nature is more important than cities, isn’t it? |
D.So nature is our best choice, do you agree my opinion? |
【推荐2】Many of us have had the same “pleasant surprise”. After you mark a song as a favorite on a music app (程序), it suggests songs of the same kind to listen to.
Big data (数据) is a lot of sets of information that are put together so they can be used by a computer program. It can have different kinds of information from many sources (来源), such as information that comes from schools, social media sites, companies, and governments.
Big data can be used for good reasons. Some hospitals use big data to predict if a baby who is born too early will get sick. The hospital can then take extra steps to take care of that baby so he or she does not get sick.
阅读短文,从所给的七个选项中选出五个能够填入空缺处的最佳选项,使短文内容完整、连贯。其中有两项是多余选项。
A.Big data can be used in many ways. |
B.Why do we use big data for bad things? |
C.Big data can also be used for bad reasons. |
D.How can big data be used for good and bad things? |
E.One set of data can have people’s names and addresses. |
F.In fact, this magic, mind-reading power depends on data. |
G.Big data can’t be used in many fields. |
【推荐3】Do you know the word “metaverse” (元宇宙)? The metaverse is a virtual (虚拟的) world. We can go inside of it, not just looking at it on a screen (屏幕). Of course, you should wear special things in it, like glasses and gloves. They can help you see, hear and touch.
In this virtual world, you can do things that you do in your real life. Let’s go to a virtual classroom if you don’t want to have classes at home! It looks like a real class room at school. You can ask your teacher questions and talk with your classmates. After the class, you may want to take a rest. How about going on a virtual trip with your friends? You can play sports together. Your family want to go shopping on weekends. Mom and dad take you to a virtual shopping store. There, you find a T-shirt and try it on. It looks nice on you. Mom buys it for you. A few days later, the deliveryman (快递员) brings it to your home.
In this virtual world, ________ Do you want to take a virtual trip to the moon (月球)? How about taking a spaceship to the Mars (火星) in the virtual world? You can do all of these things in this virtual world. That sounds cool, doesn’t it?
1. What is “metaverse”?A.It is a virtual trip outside the world. |
B.It is a screen and we can go inside of it. |
C.It is a virtual classroom and we don’t have classes in it. |
D.It is a virtual world and we should wear special things in it. |
A.Science. | B.Clothes. | C.Maths. | D.School life. |
A.do you want to play virtual games? |
B.it’s time to have a look at another trip! |
C.do you think you will be in the metaverse one day? |
D.you can also do things that you can’t do in the real life. |
A.Let’s Go for A Virtual Trip |
B.Metaverse— A Virtual World |
C.Metaverse Can Help People Do Everything |
D.Things You Can and Can’t Do in Your Real Life |
So many Chinese cities encourage everyone to sort out their rubbish before throwing it away. Put the food in one bag. Put the plastic bottles in another. And throw them in the right rubbish bins. In this way,we can help save a lot of time,money and energy for all of society.
根据短文内容,从下列选项中选出能填入文中空白处的最佳选项。选项中有一项为多余选项。
A.But they only recycle less than a quarter of the waste. |
B.Did you throw anything away today? |
C.Most foreign countries do not have sorting systems. |
D.The more rubbish gets recycled,the better. |
E.Many foreign countries have good sorting systems. |
F.They can exchange the bonus points for shopping cards! |
【推荐2】China gets greener
President Xi Jinping said “clear waters and lush mountains are invaluable assets (绿水青山就是金山银山)”. With the efforts of China’s government and its people, the rate of forest coverage (森林覆盖率) in China has reached 22.96%, a rise of 17.91% compared with forty years ago, according to a recent report from the State Forestry and Grassland Administration (SFGA).
Over the past forty years, China planted billions of trees as part of its fight against expanding (延伸的) deserts, mostly in its north. Each year, people sow seedlings (播种) over an area nearly the size of Ireland, according to Nature.
In 1978, China began a nationwide tree-planting programme known as the Three North Shelterbelt Forest Programme, also known as “the Great Green Wall”. It has helped to plant more than 66 billion trees across 13 provinces in the country’s north to act as windbreaks (防风林), according to China Daily.
Since 2018, SFGA has made more efforts to build a greener country. Its purpose is to grow at least 6.7 million hectares (公顷) of forest every year in the next 15 years. Besides planting more trees, China has tried to bring back grasslands. It has also used strict forest protection methods and banned (禁止) all commercial logging (商业伐木) since last August.
The high-speed growth of forests cannot happen without public participation (参与). For example, Ant Forest, an Alipay mobile payment app, plants real trees for users who get “green energy” by taking part in low-carbon (低碳) activities. Since 2016, it has helped to plant about 122 million trees in China’s driest areas.
China was praised as “one of the most successful countries worldwide in greening the desert” by United Nations Environment Programme Executive Director Erik Solheim.
1. What was the rate of forest coverage forty years ago?A.5.05%. | B.17.91%. | C.22.96%. | D.28.01%. |
A.turn deserts into green land |
B.create a green area in the desert |
C.stop deserts from expanding |
D.build an area nearly the size of Ireland |
A.Windbreaks have covered across all provinces of China. |
B.In 1978, China succeeded in building “the Great Green Wall”. |
C.China has grown 6.7 million hectares of forest since 2018. |
D.Since 1978, over 66 billion trees have been planted to act as windbreaks. |
A.Tried to bring back grasslands. |
B.Made strict forest protection methods. |
C.Banned commercial logging. |
D.All of the above. |
【推荐3】
Cycling is a beautiful sport. We hear it all the time. We enjoy it when we ride and race. But what is it that makes me love cycling so much? As a surfer, I would surf alone. Now and then I would see another surfer walking along the beach towards me and I would hope they would choose another place. Cycling is different. We can often go on group rides with friends.
Cycling contributes to the environment (环境). Bicycles don’t make any pollution (污染). If more and more people use bikes, there won’t be so much pollution.
Older people can cycle too. Grandpa Carl rides a tricycle. It has three wheels (轮子). He says it is safe. He can’t ride on a two-wheeled bicycle any more. He rides his tricycle to the shops and takes some bags with him. His tricycle has two baskets. He has one back basket to carry his shopping. Sometimes he cycles with this little dog in the front basket. Grandpa loves cycling. It is a bit slow, but he says it keeps him healthy.
People should use bikes whenever they can for their own health and the health of the earth.
1. What is Paragraph 1 (第一段) mainly about?A.Why the writer likes cycling. | B.Why cycling is good for health. |
C.How the writer becomes a surfer. | D.How the writer gets on with other surfers. |
A.Changes. | B.Brings. | C.Helps. | D.Uses. |
A.healthy | B.tiring | C.slow | D.dangerous |
A.To tell a story. | B.To ask for help. |
C.To call for an action. | D.To get some information. |
The lake water is polluted (污染的). It is in a color of dirty brown, and it is filled with strange plants.
How does this happen? First we must think about how water gets into Lake Ponkapog. When it rains, water comes into the lake from all around. In the past there were forests all around Lake Ponkapog so the rain water was clean.
Now there are many homes around the lake. People often use chemicals (化学品) in their gardens. They use other chemicals inside their houses for cleaning or killing insects (昆虫). There are also many businesses. Businesses use chemicals in their machines or shops. Other chemicals fall onto the ground from cars or trucks. When it rains, the rain water picks up all the chemicals from homes and businesses and then carries them into the lake. They pollute the water and kill the animals.
Boats on the lake are also a problem. Lake Ponkapog is a popular place for motorboats. But oil and gas (油和汽) from boats often get into the lake. So more bad chemicals go into the water this way.
People in Hartwell are worried. They love their lake and want to save it. Will it be possible? A clean lake must have clean rainwater going into it. Clean rainwater is possible only if people are more careful about chemicals at home and at work. They must also be more careful about gas and oil and other chemicals on the ground. And they mustn't use motorboats any more on the lake. All these may change people's lives. Only then can Lake Ponkapog be a beautiful, clean lake again.
1. In the past, the water in Lake Ponkapog was made clean by ______.
A.forests | B.rain | C.birds | D.fish |
A.are always clean |
B.can help the animals |
C.are good for the lake |
D.get into the rainwater |
A.more boats on the lake |
B.more dirty things in the lake |
C.a cleaner lake |
D.a dirtier lake |
A.be more careful about chemicals |
B.use less water |
C.grow fewer plants in the gardens |
D.use more motorboats on the lake |
A.boats on Lake Ponkapog |
B.why the water is dirty in Lake Ponkapog |
C.clean rainwater |
D.dirty lakes |
A The company Diligent Robotics has built a hospital robot called Moxi. It can help nurses do non-patient-facing tasks so that they have more time for patient care. | B Around the world, 300 million tons of plastic are created each year, and about 10% ends up in the sea. Over 100 million animals in the ocean die each year from being hurt by plastic. | C Scientists has made the “smartest” prosthetic(假体的)hand.The hand uses AI to help it “learn” from users. It’s cheaper than other prosthetic hands, because it uses 3D printing. Each hand is printed based on the users’ needs. |
D Have you ever seen the watermelon snow?People found the snow was red and smelt like watermelon in the Antarctic(南极)area.The snow has changed its color which caused by a kind of ice-loving algae(雪衣藻). Because of the global warming, the Antarctic is experiencing the very warm temperatures. More algae hold more heat into the snow, which creates more melting(融化). And because the red color of the algae doesn’t reflect back light well, the snow appears red. | E Some rich land becomes desert. We call this process “desertification (沙漠化)”. Desertification affects about 70 percent of all dry land in the world. Over 1 billion people are affected by desertification around the world. That’s about one-sixth of the world’s population. | F Lenovo has introduced a new kind of laptop(手提电脑)called the ThinkPad X1Foldable in 2019. You can hold it like a tablet(平板), or fold it like a book. You can also hold it like a traditional laptop. You can use the virtual(虚拟)keyboard to type. |
1. Match passage A~F with the two topics:① Environment; ②Invention. Which of the following is right?
A.①-ACE; ②-BDF | B.①-BDE; ②-ACF | C.①-ABF; ②-CDE |
A.What’s the price of the Thinkpad XI Foldable? |
B.Why does rich land become desert? |
C.How does the watermelon snow appear? |
A.1/3 animals in the ocean die each year from being hurt by plastic. |
B.A man who lost a hand may play a piece of music on the piano with the “smartest” prosthetic. |
C.Lenovo has introduced a new kind of laptop that is completely different from the traditional one. |
A.The weight of waste plastic which is poured into the sea. |
B.The number of sea animals die from being hurt by plastic. |
C.The population that is affected by desertification. |
A.The warmer the temperature is in the Antarctic area, the more algae grow. |
B.The “smartest” prosthetic hands are cheaper because of AI technology. |
C.Moxi can treat the patients as well as doctors. |
【推荐3】In most situations, light helps us see. But nowadays humans are using too much of it. In fact, it's a kind of pollution.
When it comes to looking at the night sky, too much light makes it difficult for us to watch some of life's most wonderful views: stars, planets and even galaxies(星系).
According to scientific research, about 2,500 stars can be seen by the human's eyes without using any special equipment. But because of light pollution, you can only see 200 to 300 stars from today's countryside, and no more than ten stars from a city. In most big cities, people cannot see the sky filled with stars like they did in their childhood.
Light pollution affects more than just our view of sky. Research shows that lots of nighttime light can harm wildlife, too.
When birds fly to another place over cities, they sometimes get lost by the brightness and fly in circles until they drop from tiredness. Sea turtles(海龟)need dark beaches for laying eggs, but they can't find their ideal places because of those bright lights.
Too much light at night may even affect human's health, but scientists are not sure of that. They are still learning more.
In order to prevent things from going worse, governments and some organizations are working to reduce light pollution. Many cities and towns have taken actions to reduce the use of lights at night.
Lights are used only when and where they are truly needed. They also shine lights down at the ground instead of up into the sky and use lower brightness levels.
Hopefully, in the near future, humans can enjoy the clear and beautiful sky again and all the wildlife will live a peaceful and undisturbed life, too.
1. Why does the writer think that too much light is a kind of pollution?A.Stars are becoming fewer and fewer. |
B.Human's health has been affected. |
C.Sea turtles have to lay eggs in dark beaches. |
D.Some of the wildlife can be harmed. |
A.Human's eyes are greatly hurt. |
B.Birds get lost by the brightness. |
C.Some of sea turtles die of tiredness. |
D.We can only see about 200 stars in the city. |
A.Strong light is a waste of energy. |
B.Animals can't find proper places to live. |
C.Too much light is bad for human's health. |
D.Wonderful views of sky have been changed. |
A.There are about 2,500 stars in the sky. |
B.Now humans refuse to use lower-bright lights. |
C.Something has been done to reduce light pollution. |
D.Lights are shone up into the sky to reduce the brightness. |
A.Pleased. | B.Awful. | C.Disappointed. | D.Strange. |
This sport is like football on bikes. There are two teams. Each team has usually got two players. Players in each team try to hit the ball into the goal. They can use their bikes or their heads to do this. The winning team is the team with the most goals at the end of the game.
Gilli-danda
This is an ancient sport from India. The players use two things: one long stick, called a danda and a short egg-shaped bat, called a gilli. There are two teams. One player puts the gilli on the ground inside a small circle and hits it into the air with the danda. Then the player hits the gilli gain and runs to touch a spot outside the circle to get a point.
Octopush
The sport is also called underwater hockey(曲棍球). There are two teams. Each team has got six players. Players swim underwater to play this game. They use small sticks and a puck. The puck is a little like a ball. Players try to push the puck along the bottom of a swimming pool into the other team’s goal. The winning team is the one with the most goals at the end of the match.
1. Which is the correct order of the pictures according to the passage?A.a→b→c | B.c→b→a | C.a→c→b | D.c→a→b |
A.Animal World. | B.Teenage Problems. |
C.Science and Technology. | D.Sports and Games. |
A.They all have a short history. | B.A long stick is needed for each sport. |
C.Every sport team has six players. | D.There’re two teams in every sport game. |
A.To tell people sports are very important. | B.To tell us to do more sports after school. |
C.To introduce three kinds of different sports. | D.To choose one of the three sports to exercise. |
“Oh, Tom. You’re still playing that computer game. You must stop now, because it’s half past eleven. If you don’t go to bed soon, you’ll be very tired tomorrow. ” said Mrs. White.
“But I’ve nearly won the game. ” Tom said to Mrs. White. She could see the excitement on his face. She sat down beside him.
“You’re always playing on the computer. You spend more time on this machine than on your homework. ”
Today more and more families have computers. Parents hope computers can help their children improve their study at school. But many of their children use computers to play games and watch videos instead of studying. We often see that computer net bars are crowded with people, especially young boys. The more they lose, the more they want to win. The result is that they
don’t want to work or study.
In some countries, even scientists hate computers. They say computers cause millions of people to lose their jobs or cause them a lot of trouble. Computer game addiction(瘾) is a serious problem . Something should have to be done to solve the problem.
1. How did Mrs. White feel when she saw her son playing late?
A.She felt excited. |
B.She felt happy. |
C.She felt worried. |
A.help their children improve their study at school |
B.help their children play well |
C.help their children know a lot of Internet knowledge |
A.watch videos | B.shopping | C.make friends |
A.the boys can go to the net bars, but the girls can’t |
B.the computer net bars are very useful |
C.the children spend too much money on computer games |
A.They think computers make people lose their money. |
B.They think computers cause them a lot of trouble. |
C.They think it’s a waste of time to use computers. |
Pinky was 14 when she adopted her first child, a Nepali baby girl, whose parents passed away. Pinky’s parents did not mind. Pinky left school and started working fulltime because she had a baby to feed. Today, she has twelve adopted children, and two sons from her marriage.
Pinky is about 30 years old and she comes from a common family. If you passed her on the street, you wouldn’t give her a second look. She lives in a brown mud-washed(泥刷的) house. There is a vegetable garden outside. Red hens with noisy chicks run all over the garden looking for food.
If you ask her why she provides a home to so many kids, she smiles shyly. But her eyes are serious. “I know what it is to be poor and hungry.” As a child, her only dream was to eat a full meal, and her favourite amusement was watching people with shoes and imagining what it felt like. By adopting poor and homeless children she is making sure that they never feel that hopeless.
Pinky feels very proud when she sees her children happy and bright. Her oldest baby, Sarita Rai, is now 20 years old. Then, there is 19-year-old Nimbhe who came to Pinky because her mother was unable to look after her. She started to work in a government office two years ago. Ten-year-old Bhim and 14-year-old Kumar came to Pinky five years ago, after their father’s death. They started living on a patch of land given by Pinky and grew vegetables for sale.
1. After Pinky adopted her child, she ________.
A.began to raise some chickens |
B.didn’t go to school anymore |
C.asked her parents foe help |
D.left her mountain village |
A.teach them to grow vegetables |
B.offer them good jobs |
C.make sure they live in hope |
D.help them become rich |
A.Pinky likes collecting coins and posters. |
B.Bhim and Kumar are from the same family. |
C.People in Pinky’s village have no shoes to wear. |
D.Sarita Rai works in a government office. |
A.kind | B.strict | C.bright | D.careful |