The world is not hungry, but it is thirsty. It seems strange that nearly 3/4 of the earth is covered with water while we say we are short of (短缺) water. Why? Because about 97% of water on the earth is sea water which we can’t drink or use for watering plants directly (直接地). Man can only drink and use the 3% — the water that comes from rivers and lakes. And we can’t even use all of that, because some of it has been polluted (污染).
Now more water is needed.The problem is: Can we avoid (避免) a serious water shortage later on? First, we should all learn how to save water. Secondly, we should find out the ways to reuse it. Scientists have always been making studies in the field. Today, in most large cities water is used only once and then runs to the sea or rivers. But it can be used again. Even if (即使) every large city reused its water, still there would not be enough. What could people turn to next?
The sea seems to have the best answer. There is a lot of water in the sea. All that needs to be done is to get the salt out of the sea water. This is expensive, but it’s already used in many parts of the world. Scientists are trying to find a cheaper way of doing it. So you see, if we can find a way out, we’ll be in no danger of drying up.
1. The world is thirsty because ________.| A．3/4 of the earth is covered with water |
| B．we have enough sea water to use directly |
| C．we haven’t used all the water in rivers and lakes |
| D．about 97% of water on the earth can’t be drunk or used for watering plants directly |
| A．3% of water on the earth is in rivers and lakes. |
| B．75% of water on the earth is the sea. |
| C．97% of the earth is covered with water. |
| D．3% of water on the earth is sea water. |
| A．if every city reuses its water, we’ll be in no danger of drying up |
| B．man can only drink and use about 25% of water on the earth |
| C．today in most large cities water is used only once |
| D．water can be used only once |
| A．Save water and try to make good use of the water in rivers and lakes. |
| B．Don’t pollute water and keep all rivers and lakes clean. |
| C．Make dirty water clean and then reuse it. |
| D．Try to find a cheaper way to get the salt out of the sea water. |
| A．The Sea Water | B．How to Save Water |
| C．The Thirsty World | D．The Polluted Water |
相似题推荐
【推荐1】Do you know the two lovely mascots（吉祥物）? You may know the five “Fuwa” dolls from the 2008 Beijing Olympic Games. On September 17 of 2019, the two lovely mascots first showed on TV. Now, let’s see who they are.
Look at the panda! It looks like an astronaut. It wears an ice shell （冰壳）and looks fat, so we call it “Bing Dwen Dwen”. White is the color of ice and snow. “Bing Dwen Dwen” likes skating very much and is good at it. That’s why it is the mascot of 2022 Beijing Winter Olympic Games.
Do you think the red mascot looks like a lantern? The lantern’s name is “Shuey Rhon Rhon”. When the Chinese New Year comes, people always make or buy red lanterns. Red is the colour of hope and good luck, so people think they will realize their dreams in the new year. “Shuey Rhon Rhon” can give players hope and help them do well in the 2022 Beijing Winter Paralympic Games（残奥会）.
Many people in different countries like the two mascots very much, and they show their love for them on the Internet. People think the two Olympic mascots will bring joy to people taking part in and watch the Olympic Winter Games.
1. The purpose（目的）of the first paragraph is to ________.| A．show the main idea of the passage. |
| B．tell us something about the two lovely mascots. |
| C．lead in the topic（话题）of the passage. |
| D．let us know about the five “Fuwa” dolls. |
| A．Bing Dwen Dwen does well in skating. |
| B．Shuey Rhon Rhon looks like a white lantern. |
| C．The two lovely mascot first showed on TV on October 17th. |
| D．All the people like the two mascots and show their loves on the Internet. |
A． | B． | C． | D． |
4. What does the passage probably come from?
| A．An ad. | B．A guidebook. | C．A newspaper. | D．A storybook. |
Dogs are not just our friends. They can also be heroes saving people’s lives. How could trained dogs help people with seizures (癲病)?
Ed Christine from the US shared her story about her seizure service dog Zone. She may suddenly lose consciousness (意识) when a seizure comes. Zone can predict (预测) a seizure about an hour before it happens and get her to know about the coming danger. But how can Zone do that?
Scientists found that seizures have special smells and dogs with their unbelievable sense of smell can catch these smells. Dogs can also be trained to stay with the person during a seizure or to press a button (按键) on the phone to call the police. More importantly, they provide greater support and freedom from fear.
Zone can smell the special smell from Christine before a seizure and rub (摩擦) Christine’s legs to warm her. This allows her time to take some medicine, get to a safe place, or call for help. Without this early warning, a seizure could cause her to fall over and get hurt. If it happens during activities like swimming or driving alone. It can be very dangerous. “Zone always stays close to me either standing or lying by my side. Since having Zone, I haven’t had any injuries caused by seizures,” said Christine. “When I’m with Zone, I feel safe and free. That’s the most amazing.”
1. How can trained dogs tell if a seizure comes?| A．By rubbing the person’s legs. |
| B．By pressing the button on the phone. |
| C．By smelling the special smell from the person. |
| A．She will feel safer. |
| B．She might suddenly fall over and get hurt. |
| C．She will know before a seizure is coming. |
| A．收益 | B．安慰 | C．伤害 |
| A．Trained Dogs Save Lives |
| B．Terrible Illness—Seizure |
| C．Christine Loves Her Dog |
You're not the same person you were as a child. You're not even the same personyou were five years ago. We don't just mean your personality. While we'd love tostart a never-ending discussion over the “true self”，we're here to talk about thecells（细胞）in your body.
Do you know how your fingernails and hair are constantly growing and replacingthemselves? The same thing happens almost everywhere in your body. Your outerlayer of skin makes way for fresher skin, and inside your veins（血管），blood cells turn over to make wayfor fresh blood. It's probably no surprise that these types of cells are short-lived, even some of the mostseemingly permanent（永久的）parts of your body replace themselves over time-including your bones.
Strong as your bones might seem, the cells they're made of won't last a lifetime. Bones are masters at rebuilding themselves, which is why most broken bones can heal on their own into the right shape.
Bones have special cells called osteoclasts（破骨细胞）whose job is to break down bone, even if itisn't broken, and send the minerals into the blood stream. This may sound frighteningly like your bonesare wearing away, but your body knows what it's doing. As osteoclasts break down bone, osteoblasts（成骨细胞）build up new bone to replace the old. By the end of each year, about 10 percent of yourentire adult skeleton will have been rebuilt through this process.
If 10 percent of your bone breaks down every year, it must take about ten years to renew 100percent of your skeleton. That would be a great guess, and it lines up nicely with the medical myth thatthe human body's cells are fully replaced every seven years, but the body is a bit more complex. That10 percent is just an average-some bone grows faster than that, and some grows slower. While someparts of your bone will turn over quickly, other parts will stick around for decades. In fact, most bonecells could live as long as 50 years.
So before you get wrapped up in an identity crisis（危机）about the cells in your body disappearingon you, know that you can lose some hair and you can cut your nails, but the bones of you aren't goinganywhere-at least not very soon and not all at once.
1. Which of the following is TRUE according to the passage?| A．All the cells in our body are the same ones that we were born with. |
| B．Our blood cells are constantly growing and replacing themselves. |
| C．It must take about 10 years to rebuild 100 percent of our skeleton. |
| D．Osteoblasts can break down skin and also rebuild it over time. |
| A．building up | B．taking off | C．dying out | D．turning on |
| A．Our skeleton seems permanent but renews itself over time. |
| B．It is not surprising that some cells in our body are short-lived. |
| C．There are two types of cells in our bones: osteoclasts and osteoblasts. |
| D．We are not the same person we were five years ago because of personality. |
It is possibly because the plastic smells like a seabirds’food,according to a new study published in Science Advances.
Mattew Savoca is the study’s lead author at the University of California,Davis,”Animals usually have a reason for the decision they make,”he said,”if we want to truly understand why animals are eating plastic in the ocean,we have o think about how animals find food”
The study find that plastic waste easily gather algae(聚集海藻)on the water.Together they
give off a smell that is very similar to the Krill(磷虾)that many seabirds feed on.It could explain why certain birds--including albatrosses(信天翁),are nearly six times more likely to eat plastic than other birds.They usually find food by their sense of smell.
There is more plastic pollution in the world every year.A study last year showed that about 8 million tons of plastic enters the oceans every year.It is enough to cover every coastline(海岸线)in the world.
Birds and other sea animals,such as turtles and fish,eat plastic.It can badly hurt the health of the animals.Some birds even mistakenly feed their babies waste instead of food.
Scientists hope this study can raise the alarm about plastics in our oceans and help save the seabirds.
1. Why more and more seabirds eating plastic waste？
| A．Because they cannot find food |
| B．Because plastic waste has a bright color |
| C．Because plastic waste smells like their food |
| D．Because plastic help them digest(消化)food |
| A．By making food for seabirds. | B．By tasting plastics by themselves. |
| C．By studying some seabirds brains. | D．By learning how seabirds find food. |
| A．Those who have poor eyesight. |
| B．Those who find food by smelling. |
| C．Those who do not have a strong body. |
| D．Those who use their sense of hearing to find food. |
| A．A good way to help seabirds is to reduce plastic waste in the ocean. |
| B．Certain birds like albatrosses enjoy eating plastic waste. |
| C．no birds will foolish enough to feed their babies plastic waste. |
| D．there is about 8 million tons of plastic waste in total in the ocean. |
| A．To help sea animals find food . |
| B．To solve the problem of plastic pollution. |
| C．To introduce a new study of making plastic. |
| D．To explain why some sea animals eat plastic. |
【推荐2】When Shanghai introduced a new rubbish sorting policy(政策) in July last year, the people in this city took some time to get used to it. They joked that every time they took out their litter, the aunt standing by the bins would ask, "What kind of litter are you?"
Starting on May 1, Beijing joined many Chinese cities by introducing a new rubbish sorting policy. People should sort their litter into four groups: kitchen, recyclable, harmful and other waste. These groups are represented(代表) by four different colors of rubbish bins-green, blue, red and gray. Those who fail to sort their litter correctly may face fines of up to 200 yuan.
The way Beijing sorts its rubbish sounds different from cities like Shanghai and Qingdao. These cities use four different groups: wet, recyclable, harmful and dry. Although their names are different, the groups are actually the same. Wet rubbish in Shanghai is, in fact, kitchen rubbish. And dry rubbish is the same as other waste.
Many people don't know how to sort their litter correctly, so Beijing government is offering online guidelines. If people don’t know how to throw away rubbish, they can search for it on the WeChat account Guanchenglishi(管城理市) to find out. By searching a key word or taking a photo, people can find out which group their waste belongs to at once.
1. Kitchen rubbish is called ________ in Shanghai.| A．Wet rubbish | B．Dry rubbish |
| C．Recyclable rubbish | D．Harmful rubbish |
| A．Rubbish sorting is being carried out all over the country. |
| B．Rubbish sorting started in Beijing on May 1. |
| C．In Qingdao, people who don't sort their litter correctly may be fined 200 yuan. |
| D．People in Beijing dislike rubbish sorting policy. |
| A．They will be made to learn the policy. | B．They won't be allowed to throw rubbish away. |
| C．They won't be noticed. | D．They may be fined. |
| A．the government's advice about rubbish sorting policy. |
| B．problems with Beijing's rubbish sorting policy. |
| C．how Beijing government help people sort their rubbish. |
| D．actions we can take to protect the environment. |
| A．People are made to sort their litter and they are unhappy. |
| B．Four cities are using the new rubbish sorting policy in China. |
| C．Many people had some problems with rubbish sorting at first. |
| D．People should sort their litter into four groups. |
| High-tech pollution protection Technology company Dyson has invented headphones with a mask to help people avoid polluted air. Called the Dyson Zone, it connects(连接) noise-canceling(消除) headphones with a mask that sits just in front of the nose and mouth, providing users with cleaned air. The product(产品) is designed to fight against air and sound pollution. |  |
| ___________ On March 15, the UN General Assembly passed a resolution(决议) supporting bicycles as a tool for dealing with climate(气候) change. It calls on member countries to add bicycles to public transportation and encourages them to care about bicycle-sharing services(服务). The UN said transportation is the third-largest causes of carbon dioxide (CO2) , a greenhouse gas that causes global warming. Choosing the two-wheeled(两轮的) over a car just once a day can reduce a person’ s transportation carbon emissions(排放) by 67 percent, according to a University of Oxford study. |  |
| Planting forests for the future China’ s National Forestry and Grassland Administration of forest in 2021 brought out a report on March 11, showing China’ s land-greening plan in 2021. According to the report, 3 million hectares (公顷) of Chinese grassland were improved through grass planting, and 23, 900 hectares of farmland were changed into grassland. As much as 1. 44 million hectares of land were saved from becoming desert. |  |
| A．invention | B．laws | C．environment | D．Achievements(成就) |
| A．introduce a new invention | B．show how clever Dyson is |
| C．provide users with more air | D．protect people from pollution |
| A．Two-wheeled Solution (解决方法) | B．An Environmentally-friendly (环保的) Bicycle |
| C．Serious Climate Change | D．Cars vs Bicycles |
A growing number of Chinese Internet user like Wang have found the pleasure of online shopping. Most online shoppers are students or young workers. People can find almost everything they need online, from clothes to books, from candy to DVD players. And clothing and home-use products are the most popular goods bought online.
The biggest attration for buyers is the low price of online goods. Buyers can also check the information easily. They can compare the prices of the same kind of goods from different sellers, and choose the cheapest one. When someone asks her about the safety of online shopping, Wangfang said,“It’s very safe and easy. If you can’t receive the goods from the sellers or are not satisfied with them, the shop owner will not get the money. You can also get a refund If you give the goods back.”
1. What goods do people like to choose online best?
| A．Clothing | B．Candy | C．Books |
| A．faster | B．safer | C．cheaper |
| A．补偿金 | B．退款 | C．欠款 |
| A．Taobao is the largest site of online shopping in the world |
| B．Wangfang spends most of the money she makes online shopping |
| C．more and more Chinese enjoy shopping online |
| A．a shopping mall | B．Taobao | C．online shopping |
About 200 years ago, the Industrial Revolution (工业革命) began in Britain. Factories were built, and even more coal was burnt. Air pollution was becoming a really big problem.
Smoke and fog together make smog (烟雾). Smog was a big problem in London's winter. Because of the cold weather, more coal was burnt to warm houses and this made more smoke.
When smog stayed over a city, it became really hard to breathe and see clearly. In 1952, the Great London Smog happened and more than 4,000 people died because of the smog.
New laws (法律) were made in 1956 and 1968 to stop such sad things from happening again. These laws were called the Clean Air Acts.
These laws were made so that air would become cleaner. The laws encouraged people to use less coal or
1. From the passage, we learn that smog was a big problem in ______ in London.
| A．spring | B．summer | C．autumn | D．winter |
| A．发明 | B．换用 | C．拒绝 | D．节省 |
| A．Factories built higher chimneys. |
| B．People began to use less coal. |
| C．More People began to ride bikes. |
| D．New factories were built outside cities. |
| A．Air Pollution in Britain in the Past. |
| B．How to Make the Air Cleaner. |
| C．Smog Is Bad for the Environment. |
| D．New Laws to Stop Air Pollution. |
【推荐3】English breakfast is a very big meal-eggs, tomatoes, tea, coffee…
For many people, lunch is a quick meal. In cities, there are a lot of sandwich shops. There office workers can buy the kind of bread they like—brown, white, and then all kinds of salad and fish for lunch. School children can have a hot meal at school, but many children just take a sandwich, a drink and some fruit from home. “Tea” means two things. It is a drink and a meal! Some people have afternoon tea with sandwiches, cakes and a cup of tea. They usually have the evening meal quite early, between 6:00 and 8:00, and often, all the family eat together.
On Sundays many families have a traditional lunch. They have chicken, pork with vegetables.
Englishmen like food from other countries, too. People often get take-away meals-they buy the food outside and then bring it home to eat.
1. In England, people usually have a ________ lunch.| A．colorful | B．quick | C．big | D．delicious |
| A．Eggs, salad and chicken. | B．Sandwiches, tomatoes and coffee. |
| C．Bread, salad and fish. | D．Pork, fish and tea. |
| A．In a restaurant. | B．At home. | C．In the office. | D．At school. |
| A．English breakfast is a very big meal. |
| B．Many families in England have a traditional lunch on Fridays. |
| C．Some English people have afternoon tea with sandwiches, cakes and a cup of tea. |
| D．English people usually have the evening meal between 6:00 and 8:00. |
| A．Culture. | B．Music. | C．Film. | D．Sport. |
