Agriculture _____ about 14 percent of global ...

Agriculture _____ about 14 percent of global greenhouse gas emissions, and transporting the food around adds to the environmental cost.

A. cares for      B. applies for

C. accounts for      D. answers for

高二英语单项填空简单题查看答案及解析

Many nations have promised to reduce greenhouse gas emissions, but are falling short of the _______ reduction of 25 to 40 percent of 1990 levels.

A．target            B．option            C．profit             D．refund

高二英语单项填空简单题查看答案及解析

What is the single most effective way to reduce greenhouse-gas emissions? Go vegetarian (素食)？ Replant the Amazon? Cycle to work? None of the above. The answer is: make air-conditioners better. On one calculation， replacing refrigerants (制冷剂) damaging the atmosphere would reduce total greenhouse gases equaling 90bn tonnes of CO2 by 2050. Making the units more energy-efficient could double that. By contrast, if half the world’s population gave up meat, it would save 66bn tonnes. Replanting two-thirds of tropical forests would save 61 bn tonnes. A one-third increase in global bicycle journeys, just 2.3bn tonnes.

Air-conditioning is one of the world's great overlooked industries. Automobiles and air-conditioners were invented at roughly the same time, and both have had a huge impact on where people live and Work. Unlike cars, though， air-conditioners have drawn little criticism for their social impact, emissions or energy efficiency. Most hot countries do not have rules to govern their energy use. There is not even a common English word for “coolth” (the opposite of warmth).

Yet air-conditioning has done more than most things to benefit humankind. Lee Kuan Yew, the first prime minister of Singapore, called it “perhaps one of the signal inventions of history”. It has transformed productivity in the tropics(热带地区)and helped turn southern China into the workshop of the World. In Europe, its spread has pushed down heat-related deaths to 10% since 2003, Men 70,000 people than usual, most of them elderly, died in a heatwave. For children, air-conditioned classrooms are associated with better grades at school.

Environmentalists who call air-conditioning“a luxury we cannot afford” have half a point, however. In the next ten years, as many air-conditioners will be installed(安装)around the world as were put in between 1902(invention time)and 2005.Unless energy can be produced without carbon emissions, these extra machines will warm the world. At the moment, therefore, air-conditioners create a vicious cycle. The more the Earth warms, the more people need them. But the more there are, the warmer the world will be.

Cutting the impact of cooling requires three things. First, air-conditioners must become much more efficient. The most energy-efficient models on the market today consume only about one-third as much electricity as average ones, Minimum energy-performance standards need to be raised raised, orintroduced in countries that lack them altogether, to push the average unit's performance closer to the standard of the best.

Next, manufacturers should stop using damaging refrigerants. One type called hydrofluoro-carbons, is over 1,000 times worse than carbon dioxide when it comes to trapping heat in the atmosphere. An international agreement to knock out these pollutants will come into force in 2019.

Last, more could. be done to design offices, malls and even cities so they do not need as many air-conditioners in the first place. More buildings should be built with overhanging roofs orbalconies for shade, or with natural ventilation (自然通风).Simply painting roofs white can help keep temperatures down. Providing indoor air-conditioned comfort need not come at the expense of an overheating world.

1.What’s the most effective way to reduce carbon gases?

A. Planting more trees.　　 B. Leading green lifestyles.

C. Improving cooling systems.　　 D. Buying new air-conditioners.

2.What can we learn from Paragraphs 2 and 3?

A. Air-conditioning enables factories to produce more in hot areas.

B. The heat-related deaths have dropped by 10% since 2003 in Europe.

C. There are many factories producing air-conditioners in southern China.

D. Air-conditioners have received little criticism for they have no negative impact.

3.Why do environmentalists call air-conditioning “a luxury we cannot afford” in Paragraph 4?

A. Because the price of air-conditioning is too high.

B. Because you can’t afford the time for installation.

C. Because the cost of energy consumption is too high.

D. Because the earth will suffer from its carbon emissions.

4.Which of the following measures can reduce the impact of cooling?

a.design natural cooling buildings

b.raise standards for energy-performance

c.make laws for international cooperation

d.stop applying harmful refrigerants to production

A. abc　　 B. abd　　 C. acd　　 D. bed

高二英语阅读理解中等难度题查看答案及解析

Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out. As a result，the temperature rises.

Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.

Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat,and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually,people，plants，and animals would all die of hunger．

People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now,more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming,kids call do just as much.

1. By the example given in Paragraph l, the author wants to__________.

A. explain how global warming happens.

B. show his feeling in a car in hot summer.

C. tell us cars are causes of greenhouse gases.

D. say that I there are greenhouse gases in every car.

2. The underlined word‘it” in Paragraph 2 refers to__________.

A. light　　 B. greenhouse effect

C. temperature　　 D. heat

3. What is the effect of atmosphere?

A. It only traps the heat of the sun.

B. It does great harm to humans.

C. It makes the earth neither too hot nor too cold.

D. It prevents all the light from the sun shining on the earth.

4. What is the main idea of the third paragraph?

A. lf there is greenhouse effect,all the plants will die

B. Human beings are likely to disappear from the earth

C. Crops can ′t take in the heat lf there is greenhouse effect

D. Although greenhouse effect is necessary,too much of it will cause us to die.

5. What will the author most probably discuss in the paragraph that follows?

A. What kids can do to help stop global warming.

B. Who should be responsible for the environmental problems.

C. What global warming is doing to the environment.

D. Why cars and buses pollute the air a lot.

高二英语阅读理解中等难度题查看答案及解析

Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out. As a result，the temperature rises.

Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.

Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat,and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually,people，plants，and animals would all die of hunger．

People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now,more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming,kids call do just as much.

1.By the example given in Paragraph l, the author wants to__________.

A. explain how global warming happens.

B. show his feeling in a car in hot summer.

C. tell us cars are causes of greenhouse gases.

D. say that I there are greenhouse gases in every car.

2.The underlined word‘it”in Paragraph 2 refers to__________.

A. light　　 　　　 B. greenhouse effect

C. temperature　　 D. heat

3.What is the effect of atmosphere?

A. It only traps the heat of the sun.

B. It does great harm to humans.

C. It makes the earth neither too hot nor too cold.

D. It prevents all the light from the sun shining on the earth.

4.What is the main idea of the third paragraph?

A. lf there is greenhouse effect,all the plants will die

B. Human beings are likely to disappear from the earth

C. Crops can’t take in the heat lf there is greenhouse effect

D. Although greenhouse effect is necessary,too much of it will cause us to die.

5.What will the author most probably discuss in the paragraph that follows?

A. What kids can do to help stop global warming.

B. Who should be responsible for the environmental problems.

C. What global warming is doing to the environment.

D. Why cars and buses pollute the air a lot.

高二英语阅读理解简单题查看答案及解析

Global warming happens when greenhouse gases trap heat and light from the sun in the earth’s atmosphere, which increases the temperature. This is like when heat is trapped in a car. On a hot day, the car gets hotter when it is out in the parking lot. This is because the heat and light from the sun can get into the car, by going through the windows，but it can’t get back out. This is what the greenhouse effect does to the earth .The heat and light can get through the atmosphere, but it can’t get out. As a result，the temperature rises.

Sometimes the temperature can change in a way that helps us. The greenhouse effect makes the earth appropriate for people to live on. Without it，the earth would be freezing，or it would be burning hot. It would be freezing at night because we would not get the sun’s heat and light .During the day, especially during the summer, it would be burning because the sun would be up with no atmosphere to filter(过滤)it，so people，plants，and animals would be exposed to all the light and heat.

Although the greenhouse effect makes the earth able to have people living on it，if there gets to be too many gases，the each can get unusually warmer, and many plants，animals．and people will die. Plants would die because they would not be able to take the heat .This would cause us to have less food to eat,and it would also limit the food that animals have. With less food for the animals that we need to survive we would even have less food. Gradually,people，plants，and animals would all die of hunger．

People are doing many things to try to stop global warming .One thing is carpooling—driving with someone to a place that you are both going to. Another thing is being more careful about leaving electrical devices turned on. Now,more people are even riding buses or bikes to lower the amount of greenhouse gases in the air .Although adults do many things to help stop global warming,kids call do just as much.

1. By the example given in Paragraph l, the author wants to__________.

A. explain how global warming happens.

B. show his feeling in a car in hot summer.

C. tell us cars are causes of greenhouse gases.

D. say that I there are greenhouse gases in every car.

2. The underlined word‘it” in Paragraph 2 refers to__________.

A. light　　 B. greenhouse effect

C. temperature　　 D. heat

3. What is the effect of atmosphere?

A. It only traps the heat of the sun.

B. It does great harm to humans.

C. It makes the earth neither too hot nor too cold.

D. It prevents all the light from the sun shining on the earth.

4. What is the main idea of the third paragraph?

A. lf there is greenhouse effect,all the plants will die

B. Human beings are likely to disappear from the earth

C. Crops can ′t take in the heat lf there is greenhouse effect

D. Although greenhouse effect is necessary,too much of it will cause us to die.

5. What will the author most probably discuss in the paragraph that follows?

A. What kids can do to help stop global warming.

B. Who should be responsible for the environmental problems.

C. What global warming is doing to the environment.

D. Why cars and buses pollute the air a lot.

高二英语阅读理解中等难度题查看答案及解析

Four habits of happy people

While the recent research has shown that about 60 percent of our baseline (基本) level of happiness is probably genetically determined, it means 40 percent is under our control. You can’t go back and get new genes.1.. Here are the good habits of happy people.

·Spend time outside. If you can clock 20 minutes a day outside, studies show you’ll not only maintain a better mood, but your mind will be more open and you’ll improve your working memory. 2..

·Exercise regularly. All exercise releases endorphins (脑内肽) in your brain, and if you work out regularly, this mood boosts（增强）even carries over to non-workout days.3.. Mood stays about the same on days they don’t.

4.. A study has confirmed that when people actively try to be happy, they raise their baseline moods, making them feel happier than those who do not try. In the study, two sets of participants listened to “happy” music. Those who actively tried to feel happier reported the highest level of positive mood afterwards.

·Care for others. 5.. Volunteer work is good for both mental and physical health. People of all ages who volunteer are happier and experience better physical health and less depression.

A. Exercise is easy to do.

B. Put effort into being happy.

C. People around you impact your mood.

D. Sunshine and fresh air make you feel good too.

E. But you can start a good morning over with a new attitude.

F. People who spend time every month helping others are happier.

G. On exercise days, people’s mood is significantly improved after exercising.

高二英语七选五中等难度题查看答案及解析

Until recently, scientists had mapped only about 20 percent of the sea floor. But our knowledge of the deep seas is changing because of information from satellites. Scientists have produced a new map that provides a detailed picture of the oceans. The map is expected to help oceanographers (海洋学家), industry and governments.

The new map is twice as detailed as the map made 20 years ago. David Sandwell is a geophysics professor at the University of California. He and other scientists worked on the mapping project. He says they turned to space to look deeper into the ocean.

The scientists collected and studied information from two satellites. Some of the data came from the European Space Agency’s Cryo-2 satellite. It was placed in Earth's orbit to watch sea ice. The other satellite is the American space agency's Jason-1. It is studying the surface of the oceans. Scientists combined the satellite data with images gathered by sonar (声波定位仪) equipment on ships. Sonar works by sending sound waves through the water. When the sound waves hit an object, its presence is confirmed.

The new map shows the sea floor as it has never been seen before. It shows thousands of underwater mountains and places where continents pulled apart. It shows where earthquakes were active many years ago. They all are buried deep underneath the ocean floor.

David Sandwell says the map is a powerful tool for fisheries, those interested in protecting the environment and for oil exploration.

“The petrol exploration industry is interested in how to reconnect the continents, bring them back together tectonically so you can map the basins （盆地）on one continental edge—say, Africa—and use that to establish where the similar basin would be on the other continental edge in South America.”

If scientists know that information, they may be able to find oil fields. The new data also will help scientists improve their estimates of ocean depths. This information can help ships travel safely and improve military operations and scientific projects worldwide.

Mr. Sandwell thinks scientists will make many more discoveries as they examine the new map and the information it provides.

1.Which one is not mentioned about the benefits brought by the new map?

A. Fisheries.　　 B. Scientific projects.

C. Ship manufacture.　　 D. Oil exploration.

2.What can we know about the new map?

A. It shows where earthquakes will happen.

B. It will be helpful to industry and governments.

C. It is three times as detailed as the old one years ago.

D. It is based on the data gathered by the spaceships.

3.The text is likely to appear in _________.

A. a sicence fiction　　 B. an advertisement

C. a science magazine　　 D. a finance report

4.Which of the following can be the best title for the text?

A. The detailed picture of the oceans

B. Underwater mountains and places

C. More discoveries about the oceans

D. Scientists create new maps of ocean floor

高二英语阅读理解中等难度题查看答案及解析

For thousands of years, man has enjoyed the taste of apples. Apples, which are about 85 percent water, grow almost everywhere in the world but the hottest and coldest areas (地区). Among the leading countries in apple production are China, France and the United States.

There are various kinds of apples, but a very few make up the majority of those grown for sale. The three most common kinds grown in the United States are Delicious, golden Delicious, and McIntosh.

Apples are different in colour, size, and taste. The colour of the skin may be red, green, or yellow. They have various sizes, with Delicious apples being among the largest. The taste may be sweet or tart (酸的). Generally, sweet apples are eaten fresh while tart apples are used to make applesauce (苹果酱).

Apple trees may grow as tall as twelve metres. They do best in areas that have very cold winters. Although no fruit is yielded during the winter, this cold period is good for the tree.

1.It can be learned from the text that delicious apples are _______________

2.Cold winter weather is good for _______________

3.China, France and the United States are considered to _______________

高二英语阅读理解中等难度题查看答案及解析

We all know the benefits of regular physical activity. But about 80 percent of people don’t take exercise　 every day. Even some say they don’t enjoy exercise.1.Here are some tips.

Find an exercise that best fits your personality. 2.　 Take　 a group exercise class, join a football team　 or walk with a group of friends. If you prefer having time alone, jogging or yoga will be better fit for you.

Make it a habit. It can take a little while for something to become a habit.3. One way　 is to　 try to　 exercise around the same time each day. “Exercise can become addictive in a positive way,” said Dr. Carnethon, who is also an American Heart Association Volunteer.

4. There　 are　 many ways to fit exercise into your life. You　 can find some exercise videos online. Do　 weight training with things around your home. Take a brief walk after lunch. And if you go to school or work by bus, get off a stop earlier and walk the rest of the way.

Keep going. If you miss a day,　 don’t worry about it.5.　 Just make sure you get back the next day. It’s　　 easy to make something a habit again. You will see the same benefits. And any little bit you can fit in will show benefits.

A. Build exercise into your lifestyle.

B. Everybody struggles once in a while.

C. So how can you make an exercise pleasant?

D. Break up your physical activity into smaller parts.

E. Therefore, give yourself the time to create a regular routine.

F. If you are a social person, do something that attracts you socially.

G. Finding a peer group is the perfect way to share your goals, and hobbies.

高二英语七选五简单题查看答案及解析