The world has a water problem which is simple...

The world has a water problem which is simple to understand but not to solve. The amount of water in the world is limited. Water usage in the world has increased during the past 10 years. Usages will continue to increase as the population grows and uses more water. A third of the world’s population lives in countries that have too little water. 1.

It’s strange to think that there is more than enough water available for everyone’s basic needs. 2. Some countries are much drier than others, for example Sudan in Africa. The UN says that people need a minimum of 50 litres of water a day for drinking, washing, cooking and sanitation(卫生). In 1990, over a billion people did not have even that . 3. Water shortages can mean long walks to get water, high prices to buy it, food insecurity and disease from drinking dirty water.

Governments that try to improve water supplies need to think carefully about how to do this. Dams and other large projects now affect 60 percent of world’s largest rivers and provide millions with water. 4.

5. New technology can help, especially by cleaning up pollution and so making more water usable, and in agriculture, where water use can be made far more efficient. For millions of people around the world, solving the problem is a matter of life and death.

A.So what can help?

B.The rest along major rivers in the world have no worry about water.

C.Unfortunately, it’s poor people who suffer most.

D.By 2025, scientists expect this to increase to two-thirds.

E.It’s just not spread evenly throughout the world.

F.Meanwhile, electricity from these dams can provide people with clean energy.

G.But in many cases, homes and the environment are destroyed as a result.

高二英语七选五中等难度题查看答案及解析

About 97% of the world’s water is salty and is found in our oceans and seas. But, as we can’t drink sea water, how can it be important?

Every part of our seas and oceans contains an amazing number of animals and fish that live at different ocean depths. Most of the different species of animals and fish depend on simple plants for their food. These simple plants called algae (海藻) drift near the surface of the ocean and use sunlight to turn carbon dioxide and water into food and oxygen. In fact, algae produce over half of the oxygen people breathe. How important sea water is!

Each plant or animal in our seas and oceans is an important link in a food chain. The algae are eaten in large amounts by microscopic animals, which are in tur consumed by larger animals. These food chains are delicately (微妙地) balanced.

The bad news about the food chains in the oceans is that they are under threat because of man. People once thought that the oceans were so big that it didn’t matter if we dumped rubbish into them or caught huge quantities of fish and whales for food. But we now know this is not true and fish stocks in the oceans have started to drop.

Thankfully, the world is taking steps to protect the future of our oceans by introducing international agreements to protect marine habitats. Most counties have introduced fishing restrictions (限制) to protect fish stocks in the oceans and new techniques are being pioneered to cope with pollution. Finally, the importance of protecting oceans is being made known to more people. This is just the beginning of a long process to protect the oceans for our future. We depend on the oceans for fish which are an important part of the human diet. How important sea water is!

1.From the passage, we learn that _________.

A.most fish and sea animals live at the surface of the seas

B.it is very difficult to break the balance of a food chain

C.over-fishing has caused the decrease in fish stock

D.it won’t be long before the problems concerning oceans will be solved

2.What does the underlined phrase “cope with” mean in Chinse?

A.处理 B.保护 C.增加 D.检验

3.Which of the following is NOT a way being used to protect oceans?

A.The use of international agreements.

B.Forbidding fishing to protect fish socks.

C.The use of new techniques.

D.Raising people’s awareness of the need to protect oceans.

4.What would be the best title of the passage?

A.The Importance of Sea Water

B.Life in the Oceans

C.How to Protect Food Chains

D.How to Deal with Seawater Pollution

高二英语阅读选择困难题查看答案及解析

What will our world be like in 2050?

There are two features in the growth of world population. First, the annual increase in population in 15 European countries, in the past few years, has been only 300,000. The United Nations estimates (估计)that by 2050, the population of European countries will decrease from the current 0.72 billion to 0.63 billion. Second, the population in developing countries is growing rapidly. By 2050，the population of Africa is expected to reach 1.8 billion, 0.9 billion more than its current population.

A recent research report published by the United Nations indicates that it is quite possible that the Earth's temperature is rising well above the previous estimate. The Antarctic ice sheet, which contains 90% of the world's ice, has lost significant mass in the past few years. The discovery comes as a surprise to scientists, who thought that the continent would gain ice this century because of increased snowfall in a warming climate. A research team from the University of Colorado used satellite data to estimate that the ice sheet will lose up to 48 cubic miles by 2050.

Africa's rivers face great change that will leave a quarter of the continent severely short of water by the middle of the century, according to a global warming study published today. Even modest decreases in rain in western Africa will see rivers lose as much as 80% of their water and a rise of what the scientists call "water refuges(难民)”. "In those areas where there is already a water shortage, it's going to have a destructive effect," the study says,.“If you're already walking 5 km to the nearest stream, by 2050,it's going to mean walking 30 km or moving your whole household closer to the water source."

1.Which of the following situations in 2050 is NOT mentioned in the text?

A.Population change.

B.Economic decline.

C.Global warming.

D.Water shortage.

2.What surprises the scientists according to Paragraph 3?

A.The Antarctic ice sheet has decreased.

B.The Earth's temperature is going down.

C.Global warming is destroying the Earth.

D.Snowfall increases in the Antarctic area.

3.What does the underlined sentence in the last paragraph stress (强调) ?

A.The ill fate of Africa's rivers.

B.The importance of doing exercise.

C.The hard life of the African refugees.

D.The seriousness of the water problem.

4.What was the most possible feeling of the author when he wrote this text?

A.Happy.

B.Angry.

C.Worried.

D.Calm.

高二英语阅读选择中等难度题查看答案及解析

Living in the mountain area has its problems, ________ obtaining water is a big problem.

A. of which　     　　 B. for what　　　     C. as　　　　         D. whose

高二英语单项填空中等难度题查看答案及解析

The Israeli farmers who pioneered the revolutionary technology known as drip irrigation（滴流灌溉） weren’t trying to solve one of the world’s most urgent problems. They were just trying to survive. They lived in the desert, and they didn’t have enough water to grow their crops.

In its simplest form, it was little more than a pipe with holes in it. But behind each hole was a hi-tech dripper that let out just the right amount of water. Snaked along a row of crops so that the holes were positioned directly above the roots, the pipe could direct each precious drop of water directly to the plants, getting a bigger harvest while using a very small amount of water.

Over time, the farmers improved upon the technology, perfecting the drippers that regulated the flow of water, and connecting the pipelines to computers that could determine exactly how much water each plant needed and when.

If the global population kept growing, the rest of the world would increasingly resemble their little community in the desert. So they began selling their irrigation systems in other parts of the world, eventually expanding to more than 110 countries. Netafirm, the company says it’s lifting people out of poverty and conserving water at a time when the importance of doing so has never been clearer.

The mass adoption of drip irrigation won’t save the world by itself. To avoid the coming catastrophe, nearly everybody will, in some way, have to do more with less, perhaps through accepting and using other new technologies. Otherwise, it’s going to get ugly.

1.Why is drip irrigation called “the revolutionary technology”?

A.It saves the world all by itself.

B.It is controlled by computers.

C.It makes irrigation more effective.

D.It provides deserts with water.

2.What does “one of the world’s most urgent problems” in Paragraph 1 refer to?

A.Lacking water. B.Lacking labor.

C.Lacking food. D.Lacking energy.

3.How does the drip irrigation help farmers with crops?

A.By drilling holes on the pipes.

B.By regulating water via drippers.

C.By snaking pipes along the crops.

D.By placing pipes just above roots.

4.Which of the following will be the best slogan for Netafirm to sell the irrigation systems?

A.Less water; More harvest.

B.New technology; New world.

C.More grain; Less starvation.

D.Water saving; World surviving.

高二英语阅读选择中等难度题查看答案及解析

Every day，it is easy to see advertisements in English all around us．Look at your own bags and clothes，and at the bags and clothes of your classmates．How many different advertisements can you see which use English words?

Often bags and clothes show the name of the company that made them．This is a popular form. A special picture or symbol called a logo(标识语) is sometimes used Logos appear on many different products. They are popular because when you see a logo, it is hard to forget that product or company.

It is common to see advertisements on TV and hear them on the radio. Most advertisements are very short sometimes. The advertisers use a short sentence which is easy for people to say and remember. Nike, for example, has a simple English sentence which is used all around the world: “Just do it.” Advertisements often use funny situations as well. It is simple to remember it.

All advertisements are designed to make people buy a product. An advertisement for a soft drink, for example, might show a group of young people who are having fun. The young people are all drinking the soft drink. Advertisers are saying to you, “Why don’t you buy this drink and be like these people? You can be young and modern.”

You might think that advertisements are not after you, but the next time you buy a soft drink, ask yourself this question：Why am I buying this particular product?

1.A good logo is ______ .

A.easy to remember B.a useful product C.difficult to understand D.easy to buy

2.People are most likely to remember an advertisement that is ______ .

A.English B.long C.funny D.new

3.The best title of this passage might be ______ .

A.Advertisements for Bags and Clothes B.Advertisements on TV and Radio

C.Advertisements for Soft Drinks D.Advertisements around Us

高二英语阅读选择简单题查看答案及解析

Jack Horner is co-author of the book How to Build a Dinosaur. However, he is most famous for his role as consultant(顾问) on all four Jurassic Park films, including the new film Jurassic World.

The original film Jurassic Park tells the story of a theme park where dinosaurs live. In that movie, scientists used DNA collected by ancient mosquitoes that had been trapped in amber shortly after they drank dinosaur blood. The scientists used this dinosaur DNA to create baby dinosaurs. The scientists in Jurassic Park created various types of dinosaurs, but in the real world there is one big problem with the story. It turns out that DNA could not possibly survive the 65 million years since the death of the dinosaurs.

The new movie creates the Indominus Rex. This idea of creating a hybrid species is something Horner has explored before. In 2011, he gave a speech in which he discussed producing a dinosaur by working with the genes of a bird. Modern birds are the closest living relative of dinosaurs.

The concept of using the genes of different animals to create new animals is called transgenic science. And this type of science has already produced some interesting results — goats that produce spider silk in their milk, cows that produce proteins for medicines that can treat diseases, and a pig that produces less-polluting waste thanks to a bit of mouse DNA. However, none of these examples are close to the dinosaurs in Jurassic World. And for a good reason — genetics is a very complex science. Producing a new species is not as simple as just exchanging a few genes around.

In the end, Jurassic World is all about fun.

1.What do we know from Paragraph 2?

A.A theme park is built to protect dinosaurs.

B.Mosquito DNA is used to create dinosaurs.

C.DNA can be well kept for millions of years.

D.Creation of dinosaurs in the film isn’t scientific.

2.What might “the Indominus Rex” be?

A.A modern bird. B.A goat producing silk.

C.A hybrid dinosaur. D.A cow producing protein.

3.What can we conclude from the last two paragraphs?

A.Jurassic World proves a big success. B.Many extinct species will be brought back.

C.Hybridizing dinosaurs is no easy job. D.Transgenic science proves a complete failure.

4.What do we know about Jack Horner?

A.He has starred in Jurassic World.

B.He has explored a lot about dinosaurs.

C.He has directed four Jurassic Park films.

D.He has written How to Build a Dinosaur alone.

高二英语阅读选择中等难度题查看答案及解析

.Water, which seems to be so simple and common, is ______ makes life possible.

A. that         B. which         C. what          D. where

高二英语单项填空简单题查看答案及解析

There is very simple way of measuring the height of a water-tower, which we cannot measure by climbing.

Suppose, for example, that we wish to find out the height of the water-tower, AB, in a factory. We first of all go to where the water-tower is standing and measure a distance of, say, 25 feet from it. Then we take a stick, and stand it in the ground at the spot we have just marked.

Let us suppose the stick we are using is 4 feet in height. We now walk farther away from the water –tower in the same straight line as when we measured off the distance of 25 feet. We go from the water-tower until we come to point E, where with our head on the ground, we see the top of the stick and the top of the water-tower in the same height line---that is, the top of the stick just covers the highest part of the water-tower. Every schoolboy can work out the height of the water-tower now.

Suppose that the line CE is five feet. We know that the stick is 4 feet high and the distance BE is 30 feet. Thus, 5 is to 4 as 30 is to AB.

1.If we want to know how high a tall tree is,_______.

A. we have to climb up the tree

B. we have no way out

C. we must cut down the tree

D we needn’t climb up the tree

2. According to the passage, which of the following is correct?

3.It is clear from this that the problem can be settled by _________.

A. a child

B. the boy who has little schooling

C. everyone

D. a girl at middle school

4.To measure a water-tower in this way, _________.

A. no tool is needed

B. Besides a stick, tape-measure (卷尺) or at least a ruler is necessary.

C. we have to use nothing but a stick

D. we have to prepare a set of expensive tools

高二英语阅读理解中等难度题查看答案及解析

We are surrounded by people trying to make the world a better place. Peace activists bring enemies together so they can get to know one another and feel each other’s pain. School leaders try to attract a diverse set of students so each can understand what it’s like to walk in the others’ shoes.

It is true that people who are empathetic (共情的) are more sensitive to the perspectives and sufferings of others. They are more likely to make sympathetic moral judgments. The problem comes when we try to turn feeling into action. Empathy makes you more aware of other people’s sufferings, but it’s not clear whether it actually motivates you to take moral action or prevents you from taking immoral action. For example, in the early days of the Holocaust, Nazi prison guards sometimes wept as they killed Jewish women and children, but they still did it.

Empathy directs you toward moral action, but it doesn’t seem to help much when that action comes at a personal cost. You may feel painful for the homeless guy on the other side of the street, but the chances are that you are not going to cross the street to give him a dollar. Studies investigating the link between empathy and moral action suggest that empathy is not a major player when it comes to moral motivation. Its contribution is slight in children, modest in adults, and nonexistent when costs are significant.

Nobody is against empathy. However, it’s not enough. These days empathy has become a shortcut. It has become a way to experience delicious moral emotions without confronting the weaknesses in our nature that prevent us from actually acting upon them. It has become a way to experience the illusion (幻觉) of moral progress without having to do the nasty work of making moral judgments. Teaching empathy is a safe way for schools and other institutions to seem blameless without risking dispute or hurting anybody’s feelings.

People who actually perform pro-social action don’t only feel for those who are suffering, they feel it necessary to act by a sense of duty. Empathy is less important. If you want to make the world a better place, help people debate, understand, reform, revere and enact their moral principles. Accept that principles conflict.

1.Why does the author mention the Holocaust in paragraph 2?

A.To show that empathy is limited in preventing people from wrongdoings.

B.To prove that empathic people are more likely to make compassionate moral judgments.

C.To explain that empathy is helpful for moral teaching.

D.To criticize the immoral actions of Nazis.

2.What will empathetic people probably do when they see the homeless?

A.Reach out to them. B.Ignore them.

C.Feel sorry for them. D.Raise money for them.

3.According to paragraph 4, which of the following statements is NOT TRUE?

A.People are enthusiastic about empathy.

B.Teaching empathy is a quicker way to achieve moral education.

C.Empathy alone is not sufficient.

D.People are unwilling to take actual actions.

4.According to the author, what’s the best way to make the world a better place?

A.Try to understand what it’s like to walk in the others’ shoes.

B.Be more sensitive to the perspectives and sufferings of others.

C.Stop teaching empathy since it is only a sideshow in moral education.

D.Take on the duty to act and make real moral progress.

高二英语阅读选择中等难度题查看答案及解析