There is a system ________the waste is dispos...

There is a system ________the waste is disposed of using the principles of ecology.

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

高二英语单项填空中等难度题查看答案及解析

Disposing(处理) of waste has been a problem since humans started producing it. As more and more people choose to live close together in cities, the waste-disposal problem becomes increasingly difficult.

During the eighteenth century, it was usual for several neighboring towns to get together to select a faraway spot as a dumpsite. Residents or trash haulers(垃圾托运者) would transport household rubbish, rotted wood, and old possessions to the site. Periodically(定期的) some of the trash was burned and the rest was buried. The unpleasant sights and smells caused no problem because nobody lived close by.

Factories, mills, and other industrial sites also had waste to be disposed of. Those located on rivers often just dumped the unwanted remains into the water. Others built huge burners with chimneys to deal with the problem.

Several facts make these choices unacceptable to modern society. The first problem is space. Dumps, which are now called landfills, are most needed in heavily populated areas. Such areas rarely have empty land suitable for this purpose. Property is either too expensive or too close to residential(住宅区的)neighborhoods. Long-distance trash hauling has been a common practice, but once farm areas are refusing to accept rubbish from elsewhere, cheap land within trucking distance of major city areas is almost nonexistent.

Awareness of pollution dangers has resulted in more strict rules of waste disposal. Pollution of rivers, ground water, land and air is a price people can no longer pay to get rid of waste. The amount of waste, however, continues to grow.

Recycling efforts have become commonplace, and many towns require their people to take part. Even the most efficient recycling programs, however, can hope to deal with only about 50 percent of a city's reusable waste.

1.The most suitable title for this passage would be ______.

A. Waste Disposal Problem　　 B. Waste Pollution Dangers

C. Ways of Getting Rid of Waste　　 D. Places for Disposing Waste

2.During the 18th century, people disposed their waste in many ways EXCEPT for ______.

A. burying it　　 B. burning it

C. recycling it　　 D. throwing it into rivers

3.What can be inferred from the fourth paragraph?

A. Farm areas accept waste from the city in modern society.

B. There is cheap land to bury waste in modem society.

C. Ways to deal with waste in modem society stay the same.

D. It is difficult to find space to bury waste in modem society.

高二英语阅读理解中等难度题查看答案及解析

There are two rooms on the first floor, 　　　　　 is used as a guest room.

A. a small of which　　　　     B. a smaller of them

C. the smaller of which　　     D. the smaller of them

高二英语单项填空中等难度题查看答案及解析

Following news of the potential for life on the recently-discovered TRAPPIST-1 system, there may be another competitor ready to take its place.

With the help of the Cassini spacecraft, NASA (National Aeronautics and Space Administration) scientists have picked up the first evidence that chemical reactions are taking place deep below the surface of Enceladus, Saturn’s (土星的) sixth-largest moon. This means that there could be life in Enceladus’ warm underground seas.

An early study found that liquid oceans exist miles below Enceladus’ surface. But to reveal what is happening down there, scientists must rely on the plumes (股) of water that spray (喷射) through cracks in Enceladus’ icy surface. In October 2015, NASA sent Cassini into a deep dive into one of the plumes.

Cassini’s findings, published on April 13 in the journal Science, showed that hydrogen (氢) not only exists on Enceladus, but is also responsible for a chemical reaction between hot rocks and water in the ocean beneath its surface.

This same process on Earth provides energy for entire ecosystems around volcanic vents (火山口). There, tiny creatures are able to survive without sunlight, using hydrogen and carbon dioxide as fuel in a process known as “methanogenesis (甲烷生成)”.

The discovery of this chemical energy source on Enceladus means it could be a very good candidate to host life.

“Confirmation (确认) that the chemical energy for life exists within the ocean of a small moon of Saturn is an important milestone (里程碑) in our search for habitable (可居住的) worlds beyond Earth,” Linda Spilker, Cassini project scientist at NASA, told the Daily Mail.

Alien life was once only thought possible on habitable planets within the “Goldilocks zone” – far enough from our sun not to be a fireball, but not so far as to be freezing.

Research on Enceladus is still in its early stages, but the recent findings have important meanings for future exploration.

“At present, we know of only one genesis (诞生) of life, the one that led to us,” David Rothery, professor of planetary geosciences (行星与地球科学) from the Open University in the UK, told The Telegraph.

“If we knew that life had started independently in two places in our solar system, then we could be pretty confident that life also got started on some of the tens of billions of planets and moons around other stars in our galaxy,” he said.

1.What is the article mainly about?

A. The connection between the TRAPPIST-1 system and Enceladus.

B. The potential for life on Saturn’s moon, Enceladus.

C. The chemical energy source on Enceladus.

D. Scientists’ constant search for life in the solar system.

2.Scientists assume that there could be life on Enceladus because ______.

A. there is evidence of a warm ocean under Enceladus’ surface

B. hot rocks and water have been discovered on Enceladus

C. hydrogen discovered on Enceladus could be a chemical energy source

D. the entire ecosystems of Enceladus are somewhat similar to those of Earth

3.According to David Rothery, the recent findings on Enceladus could mean that ______.

A. there is only one genesis of life in our galaxy

B. there could be many habitable planets, but all in the “Goldilocks zone”

C. it won’t be long before scientists find a habitable planet beyond Earth

D. alien life could exist on some other planets if it existed on Enceladus

高二英语阅读理解中等难度题查看答案及解析

There is a growing problem of what to do with electronic waste such as old televisions, computers, radios, cellular telephones and other electronic equipment.

Electronic trash, or e-waste, is piling up faster than ever in American homes and businesses. People do not know what to do with old televisions or computers, so they throw them in the trash.

National Solid Wastes Management Association (NSWMA) state programs director Chaz Miller says the large amount of electronic waste Americans produce is not unexpected.

The US Environmental Protection Agency (EPA) estimates more than 400 million consumer electronic items are dumped each year, and there is a push by more states to ban the waste from landfills(垃圾填埋场) and create recycling programs. They can be torn apart and sorted for useable parts. Mike Fannon who runs the plant in Baltimore, says, "There are a lot of valuable metals that can be recovered and reused instead of just putting them in the landfill, and in certain components, there are some materials that should not really be in the landfill," Fannon explains.

Fannon says nearly 20 percent of electronic waste is recycled nationwide. Thirteen years ago, it was only about 6 percent. Recycling rates continue to rise as more communities have banned electronics from landfills in an effort to keep e-waste poisons like lead(铅) and mercury（汞） out of garbage dumps.

This year, several states like Vermont imposed a ban on electronic waste in landfills. More than 25 other states have also adopted landfill bans, e-waste recycling programs or both. Chaz Miller says more can be done to boost electronic waste recycling.

"We can do much better," noted Miller. "I think clearly our goal should be to do as well as we do recycling newspapers."

1.Which of the following does NOT belong to e-waste?

A. Old televisions. B. Old computers.

C. Old cell phones D. Old newspapers.

2. Why is e-waste banned from landfills in many states?

A. Because it can not be recycled.

B. Because it might damage the environment.

C. Because it can be shipped to other countries.

D. Because the landfills are already full.

3.According to Mike Fannon, what might be the best way of dealing with e-waste?

A. Recycling it.　 B. Selling it.

C. Burying it.　 　 D. Breaking it.

4.What can we learn from the passage?

A. At present, less then 10 percent of e-waste is recycled.

B. Chaz Miller works for EPA.

C. All states in the US have banned e-waste from landfills.

D. Experts are optimistic about the future of e-waste.

高二英语阅读理解中等难度题查看答案及解析

The water we drink and use was running short. We all have to learn what to stop wasting water.

One of the step that we should take is to find ways of reusing it. Today in the most large cities, fresh water is used only once and then it runs in waste system. But that is possible to pipe the used water to a purifying factory, there the used water can be treated with chemical materials by the workers so that it can reused. But even if every large city purified and reused it's water, we still would have enough water.

高二英语短文改错中等难度题查看答案及解析

The BeiDou Navigation Satellite System（BDS）is a Chinese satellite navigation system. It consists of two separate satellite constellations（星座）. The first BeiDou system, officially called the BeiDou Satellite Navigation Experimental System and also known as BeiDou-1, consists of three satellites, which since 2000 has offered limited coverage and navigation services, mainly for users in China and neighboring regions. Beidou-1 was decommissioned at the end of 2012.

The second generation of the system, known as COMPASS or BeiDou-2, became operational in China in December 2011 with a partial constellation of 10 satellites in orbit. Since December 2012, it has been offering services to customers in the Asia-Pacific region.

In 2015, China started the build-up of the third generation BeiDou system（BeiDou-3）in the global coverage constellation. The first BDS-3 satellite was launched on 30 March 2015. Up to January 2018, nine BeiDou-3 satellites have been launched. BeiDou-3 will eventually consist of 35 satellites and is expected to provide global services upon completion in 2020. So far, China has sent 27 BeiDou satellites into space. When fully completed, BeiDou, the world’s fourth navigation satellite system, following GPS in the United States, GLONASS in Russia and Galileo in the European Union, will provide an alternative global navigation satellite system to the United States owned Global Positioning System（GPS）, and is expected to be more accurate than the GPS. It was claimed in 2016 that BeiDou-3 will reach millimeter-level accuracy（with post-processing）, which is ten times more accurate than the finest level of GPS.

According to China Daily, in 2015, fifteen years after the satellite system was launched, it was generating a turnover of $31.5 billion annually for major companies such as China Aerospace Science and Industry Corp, AutoNavi Holdings Ltd, and China North Industries Group Corp.

1.What does the underlined word “decommissioned” in the 1st paragraph mean?

A. out of service　　 B. out of control

C. under repair　　 D. under work

2.How many BeiDou-3 satellites had been sent into space by January 2018?

A. 3.　　 B. 9.

C. 27.　　 D. 35.

3.Which of the following statements about BDS is true according to the passage?

A. Beidou-2 began to operate in December, 2012.

B. Beidou-1 cannot cover all the Asia-Pacific regions.

C. Beidou-3 had reached the finest accuracy of GPS by 2016.

D. BDS ranks fourth among the existing navigation satellite systems in the world.

4.What is the passage mainly about?

A. The service of BDS.

B. The accuracy of BDS.

C. The development of BDS.

D. The comparisons among the satellite systems.

高二英语阅读理解困难题查看答案及解析

Culture is one of the most challenging elements of the international marketplace. This system of learned behavior patterns characteristic of the members of a given society is constantly shaped by a set of dynamic variables(变量): language, religion, values and attitudes, manners and customs, aesthetics, technology, education, and social institutions. To deal with this system, an international manager needs both factual and interpretive knowledge of culture. To some extent, the factual knowledge can be learned; its interpretation comes only through experience.

The most complicated problems in dealing with the cultural environment lie in the fact that one cannot learn culture—one has to live it. Two schools of thought exist in the business world on how to deal with cultural differences. One is that business is business the world around, following the model of Pepsi and McDonald’s. In some cases, globalization is a fact of life; however, cultural differences are still far from disappearing.

The other school suggests that companies must adjust business approaches to individual cultures. Setting up policies and procedures in each country has been compared to an organ transplant; the critical question centers around acceptance or rejection. The major challenge to the international manager is to make sure that rejection is not a result of cultural myopia(近视) or even blindness.

Fortune examined the international performance of a dozen large companies that earn 20 percent or more of their revenue overseas. The internationally successful companies all share an important quality: patience. They have not rushed into situations but rather built their operations carefully by following the most basic business principles. These principles are to know your rivals, know your audience, and know your customer.

1.According to the passage, which of the following is true?

A. Business diversity is not necessary.

B. All international managers can learn culture.

C. Most people do not know foreign culture well.

D. Views differ on how to treat culture in business world.

2.According to the author, the model of Pepsi  ________ .

A. is different from the model of McDonald’s .

B. reflect the idea that business is business.

C. has converged cultural differences .

D. shows the reverse of globalization .

3.The two schools of thought________.

A. both think dealing with cultural environment is the most complicated problem in business

B. both admit the existence of cultural diversity in business world.

C. both advocate that different policies be set up in different countries.

D.both propose that companies should tailor business approaches to individual cultures.

4.This article is supposed to be most useful for those________ .

A. who have connections to more than one type of culture

B. who are interested in researching the topic of cultural diversity

C. who want to run business in other countries

D. who want to travel abroad

高二英语阅读理解简单题查看答案及解析

The only system I know ____ will help you remember what you have heard at a lecture is the system of keeping notes.

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

高二英语单项填空中等难度题查看答案及解析

It is the test system, _____ the teachers, that is to blame for the heavy burden of middle school students nowadays.

A. other than                    B. or rather                               C. rather than                            D. more than

高二英语单项填空中等难度题查看答案及解析