英语阅读理解(科普环保)练习题20篇

【英语】高三英语阅读理解(科普环保)专项训练100(附答案)含解析一、高中英语阅读理解科普环保类1．犇犇阅读理解News anchors(主播) must have been reluctant to read out the following news: Xin Xiaomeng began working as the world's first female artificial(人工的) intelligence news anchor at Xinhua News Agency on Sunday, three months after a male robot joined the profession.Unlike previous news robots though, Xin does not read news like a cold machine; she reads it almost like a human being. The muscles on her face stretch and relax-and her reactions change-as she continues reading. That's why many news anchors were worried: Will AI replace us in the near future?To find the answer, we have to analyse the technologies that support Xin at her job. Three key technologies are used to support Xin. First, samples of human voices are collected and synthesized (合成). This is followed by the collection and synthesis of human muscle movement samples. And third the voices and movements are married in a way that when the Al news anchor reads, the micro -electric motors behind her face move to make her expressions seem more human.Yet we need a thorough knowledge of deep leaning technology to make a robot imitate a person's voice. The developer needs to collect tens of thousands of pieces of pronunciations, input them into the machine and match them with the text or the Al to lean and read. The process for imitating facial movements is similar. The developer has to analyse the movements of the 53 muscles in the human face, make a model set from the collected data for the AI news anchor to lean, and imitate the movements of facial muscles via programsBoth the technologies used to make Xin's performance impressive are mature. The real difficulty lies in the third -the technology to match the pronunciations with facial movements so that Xin expressions vary according to the content of the news report. In fact, Xins expressions don't always change according to the content. As a result, her expressions look anything but human. Actually. AI is still no match for human qualities.（1）What does the underlined word "reluctant "in the first paragraph mean?A. Delighted.B. Unwilling.C. Confused.D. Optimistic.（2）What can we infer about previous news robots?A. They read news without expressions.B. They looked like a human beingC. They could interview sports starsD. They could interact with audience.（3）What do we know about the third technology?A. This technology is very perfect so farB. This technology is quite popular nowC. This technology remains at the theoretical stageD. This technology is far from mature.（4）From the last paragraph, we can draw a conclusion that____.A. human news anchors should learn from AT anchors to save their jobsB. Al anchors perform much better than human news anchors at presentC. Al news anchors won't replace human news anchors in the near futureD. Xin Xiaomeng s expressions vary so naturally that they are true to life【答案】（1）B（2）A（3）D（4）C【解析】【分析】本文是一篇说明文，上周日，新华社新闻主播辛晓萌成为世界上第一位女性人工智能新闻主播，作者介绍了人工智能背后的技术，并指出在不久的将来，人工智能新闻主播不会取代人类新闻主播。

50套高中英语阅读理解(科普环保)含解析一、高中英语阅读理解科普环保类1．犇犇阅读理解While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world's first kids to be "taught" by a digital teacher. Before you start imagining a human-like robot walking around the classroom, Will is just an avatar that appears on the student's desktop, or smartphone screen, when ordered to come.The autonomous animation platform has been modeled after the human brain and nervous system, allowing it to show human-like behavior. The digital teacher is assigned to teach Vector's "Be sustainable with energy" — a free program for Auckland elementary schools.Just like the humans it replaced, Will is able to instantly react to the students' responses to the topic. Thanks to a webcam and microphone, the avatar not only responds to questions the kids may have, but also picks up non-verbal cues. For instance, if a student smiles at Will, he responds by smiling back. This two-way interaction not only helps attract the students' attention, but also allows the program's developers to monitor their engagement, and make changes if needed.Nikhil Ravishankar believes that Will-like avatars could be a novel way to catch the attention of the next generation. He says, “I have a lot of hope in this technology as a means to deliver cost-effective, rich, educational experience in the future.”The program, in place since August 2018, has been a great success thus far. Ravishankar says, " What was fascinating to me was the reaction of the children to Will. The way they look at the world is so creative and different, and Will really captured their attention." However, regardless of how popular it becomes, Will is unlikely to replace human educators any time soon.（1）What was special for some elementary school students in Auckland?A. A digital teacher taught them.B. They first saw something digital.C. This was the start of a new school year.D. They could get close to smartphone screen.（2）What is the benefit of this two-way interaction?A. It can smile back.B. It can use microphone.C. It can talk any topic for free.D. It can change if necessary.（3）What's Ravishankar's attitude to Will's replacing Human educators soon?A. Optimistic.B. Doubtful.C. Unclear.D. Disapproving.（4）What might be the best title for the passage?A. New High-tech Contributes to EducationB. The World's First Digital Teacher Appears in Classroom.C. The World's First Digital Teacher, a Help to StudentsD. New Zealand Will Replace Teachers in Classrooms【答案】（1）A（2）D（3）D（4）B【解析】【分析】本文是一篇说明文，介绍了一款智能机器人走进小学课堂，为孩子们讲授能源可持续发展。

（英语）英语阅读理解(科普环保)题20套(带答案)一、高中英语阅读理解科普环保类1．犇犇阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

When athletes at the 2020 Tokyo Olympics collect their medals, they'll not only be wearing something that celebrates their sporting performance, but something that symbolizes lastingness. For both the 2020 Olympics and Paralympics, organizers aim to make all of the gold, silver, and bronze medals out of used electronics. This strong message about how to make use of e-waste has gotten a lot of Japan involved.Starting in April 2017, the Japanese Olympic Committee began collecting old laptops, digital cameras, smartphones, and other abandoned electronics. The initiative (倡议) has achieved great success. Already, the quantity needed for bronze medals has been met, and they're in the homestretch for silver and gold medals, meaning the collection process can pack up at the end of March.When looking just at the number of cell phones collected, the amount of waste is shocking. In a period of about 18 months, a little over 5 million smartphones were collected thanks to cooperation with NTT DOCOMO. Japan's largest mobile phone operator allowed the public to turn in phones at their shops, which counted a lot in the project's success.After being taken apart and sorted, the small electronics underwent a smelting process to extract (提炼) all the gold, silver, and bronze elements. Thanks to this initiative, the worldwide struggle with e-waste will have a global platform. According to a study published by the United Nations University—44.7 million metric tons of e-waste were made in 2016. Only 20% of that was actually recycled. Unfortunately, this figure is set to rise significantly in the coming years, moving to 52.2 million metric tons by 2021. So while the Tokyo Olympics initiative might be just a drop in the bucket, it's a good start in showing what the public can do if they're made more aware of the issue.（1）What can be learnt about Tokyo Olympics initiative from the passage?A. E-waste in the world is increasing significantly.B. It is easy to get elements needed from the used electronics.C. Only producers of electronics participated in the project.D. NTT DOCOMO contributed to the success of the project.（2）Which can best replace the underlined word "homestretch" in Paragraph 2?A. starting periodB. collection effortC. final stageD. hard search（3）What influence does the Tokyo Olympics initiative have?A. It offers an effective method to solve the problem of e-waste.B. It shows the power of advanced technology in daily life.C. It saves the expense spent in making all the medals.D. It encourages the public's involvement in dealing with e-waste.（4）What is the writer's attitude to the Tokyo Olympics initiative?A. PositiveB. NegativeC. AmbiguousD. Indifferent【答案】（1）D（2）C（3）D（4）A【解析】【分析】本文是一篇说明文，介绍了日本将回收利用废弃的电子产品中的金属，用于制作2020年奥运会奖牌。

（英语）英语阅读理解(科普环保)专项习题及答案解析及解析一、高中英语阅读理解科普环保类1．犇犇阅读理解According to a recent study, a new genetically modified rice can prevent infections of HIV, the virus responsible for the disease AIDS.The study reports the newly-developed rice produces proteins that attach directly to the HIV virus. This process prevents the virus from mixing with human cells. The scientists say it can remove the effect of the virus and block its spreading.The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in developing countries. Nearly two-thirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease.The new study predicts the rice-based method will lead to long-term use of the anti-HIV treatment across the developing world. Researchers said the "groundbreaking" discovery is "realistically the only way" that anti-HIV combination treatments can be produced at a cost low enough for the developing world.They say the easiest and most cost-effective way to use the rice will be to make it into a cream to be put on the skin. The HIV-fighting proteins can then enter the body through the skin. People all over the world could grow the rice and make the cream themselves. This would prevent the cost and travel required for many patients to receive treatments and medicine.The process of changing the genetic structure of food crops has been debated for some time. Critics of genetically engineered crops believe they can harm people. The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.（1）What does the author intend to do in paragraph 3?A. Stress the urgency of HIV treatments.B. Provide some data about HIV.C. Remind readers of HIV prevention.D. Introduce HIV to the public.（2）In which way will the rice be used at the lowest cost?A. By transforming it into proteins.B. By adding it to an oral drug.C. By attaching it to the HIV virus.D. By processing it into a cream.（3）What can we infer about the genetic engineering process?A. It can prevent infections of HIV.B. It can produce dangerous chemicals.C. It still requires perfecting.D. It applies to the developed world.（4）From which is the text probably taken?A. A biology textbook.B. A health magazine.C. A social webpage.D. A first aid brochure.【答案】（1）A（2）D（3）C（4）B【解析】【分析】本文是一篇说明文，介绍了科学家培育出可预防艾滋病病毒感染的转基因水稻。

英语阅读理解(科普环保)练习题20篇及解析一、高中英语阅读理解科普环保类1．犇犇阅读短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

A shark moving around the coastline is normally a worrying sight，but this waterborne drone (无人机) threatens floating rubbish instead of people.Developed by Dutch company RanMarine, the WasteShark takes nature as its inspiration with its whale shark-like mouth. Responsible for collecting waste, the drone will begin operations in Dubai Marina in November after a year of trials with local partner Ecocoast.According to RanMarine, the WasteShark is available in both autonomous and remote-controlled models. Measuring just over five feet by three-and-a-half feet (1.5 meters by 1.1 meter), it can carry up to 352 pounds of rubbish (159.6 kg) and has an operational battery life of 16 hours.By 2016 there were approximately 150 million tons of plastic in the world's oceans. One paper from December 2014 estimated that over a quarter of a million tons of ocean plastic pollution was afloat."WasteShark also has the abilities to gather air and water quality data, remove chemicals out of the water such as oil, and heavy metals, and scan the seabed to read its depth and outlines," said Oliver Cunningham, one of the co-founders of RanMarine. "Fitted with a collision-avoidance system, the drone uses laser imaging detection and ranging technology to detect an object in its path and stop or back up if the object approaches.""Our drones are designed to move through a water system, whether it's around the perimeter (周边) or through the city itself. The drones are that last line of defense between the city and the open ocean," added Cunningham. "WasteSharks are operating in Dubai, South Africa and the Netherlands and cost $ 17, 000 for the remote-controlled model and just under $ 23, 000 for the autonomous model."Dubai-based operator Ecocoast has two WasteShark drones. Co-founder Dana Liparts says they will clean waterfronts for clients including hotels and environmental authorities and that Ecocoast' intention is to have the collected rubbish recycled or upcycled. However, Liparts argues that cleaning waterways doesn't have a one-size-fits-all solution and requires a combination of new technology, preventative measures and changing people's attitudes towards littering.（1）What do we know about the WasteShark?A. It can frighten sharks away.B. It is an ocean explorer.C. It is a rubbish collector.D. It can catch fish instead of people.（2）What does Paragraph 4 mainly tell us?A. The causes of ocean pollution.B. The dangers of using plastics.C. The severity of ocean garbage pollution.D. The importance of ocean protection.（3）What will the WasteShark do with an approaching object?A. Avoid crashing into it.B. Break it into pieces.C. Swallow it.D. Fly over it.（4）Which of the following ideas does Liparts agree with?A. The WasteShark should be used more widely.B. More measures should be taken to make water clean.C. The production cost of WasteSharks should be reduced.D. People should take a positive attitude to new technology.【答案】（1）C（2）C（3）A（4）B【解析】【分析】本文是一篇说明文，介绍一种水上无人机可以用于清理浮在水面上的垃圾。

（英语）英语阅读理解(科普环保)题20套(带答案)及解析一、高中英语阅读理解科普环保类1．犇犇阅读短文，从每题所给的A、B、C和D四个选项中，选出最佳选项。

Robots are now being employed not just for dangerous tasks, such as discovering mines or rescuing people in disasters. They are also finding application as household helps and as nursing assistants. As increasing numbers of machines, equipped with the latest artificial intelligence, take on a growing variety of specialized and everyday tasks, the question of how people see them and behave towards them becomes ever more urgent.A team led by Sari Nijssen of Radboud University and Markus Paulus, Professor of Developmental Psychology at Ludwig-Maximilians-Universitaet (LMU), have carried out a study to determine the degree to which people show concern for robots and behave towards them basedon moral principles.According to Sari Nijssen, the study set out to answer the following question:" Under what circumstances would adults be willing to sacrifice robots to save human lives?" The participants were faced with a hypothetical (假设的) moral dilemma: Would they be prepared to put a single person at risk in order to save a group of injured persons? In the situations presented the intended victim was either a human, a humanoid robot that had been humanized (人性化的) to various degrees or a robot that was clearly recognizable as a machine.The study suggested that the more the robot was humanized, the less likely participants wereto sacrifice it. Situations that included vivid stories in which the robot was described as a merciful being or as a creature with its own understandings, experiences and thoughts, were more likelyto stop the study participants from sacrificing it in the interests of anonymous (无名的) humans. "This result indicates that our study group attached a certain moral status to the robot," says Paulus. "One possible suggestion of this finding is that attempts to humanize robots should notgo too far. Such efforts could come into conflict with their intended function—to be of help to us."（1）What has become a concern about robots?A. How to humanize them.B. How to treat them in life.C. How to use them effectively.D. How to find more applications.（2）In the study the participants probably have to decide ________.A. when to sacrifice a robotB. where to experience risksC. which robot to work withD. what robots should be like（3）What can be inferred from Paulus' words?A. Humanized robots offer less help to people.B. Humanizing robots too much may be improper.C. Certain moral status should be attached to robots.D. Conflicts often happen between humans and robots.（4）Which of the following would be the best title for the text?A. Robots, A Must for FutureB. Humanized Robots, A New TrendC. Robot Saved, People Take the HitD. Humanized Robots, Replace Human【答案】（1）B（2）A（3）B（4）C【解析】【分析】本文是一篇说明文，随着越来越多的机器人具有人性化，它们承担越来越多样化的专业和日常任务，人们如何看待他们，如何对待他们的问题变的迫在眉睫。

英语阅读理解（科普环保）练习题20篇一、高中英语阅读理解科普环保类1 .犇犇阅读下列短文，从每题所给的A B、C和D四个选项中，选出最佳选项。

A team Of international SCientists is due to Set off for the world's biggest iceberg in a missiOn aiming to an SWer fun dame ntal questi OnS about the impact of CIimate Cha nge in the polar regi ons. The SCientists, led by the BritiSh Antarctic SUrVey （BAS）, are trying to reach a newly revealed ecosystem that had been hidden for 120,000 years below the LarSen C ice shelf.LaSt year, Part of the LarSe n C ice shelf CaIVed （崩解）away, forming a huge iceberg-A68 —WhiCh is four times bigger than London, and revealing life beneath for the first time. Now SCientists Say it is a race aga inst time to explore these new ecosystems before they are tran SfOrmed to the light. Marine biologist Dr Katrin LinSe from the BAS is leading the mission."The calvi ng of A68 PrOVideS US With a UniqUe opport Unity to StUdy marine life as it resp OndS to a huge environment Change," She said. "It is important that We get there quickly before the Un dersea en viro nment Cha nges as SUn Iight en ters the water."PrOfeSSOr DaVid VaUghan, SCience director at the BAs, said, "We need to be bold （大胆的）On this one. LarSen C is a Iong Way south and there's lots of Sea ice in the area, but this is important SCie nce, so We will try our best to get the team Where they n eed to be. He Said CIimate Cha nge had already affected the Sea around Antarctica and is Warming some COaStaI waters. "Future Warmi ng may make some habitats warm. Where these habitats SUPPOrt UniqUe SPeCieS that are adapted to love the cold and not the warm, those SPeCieS are going to either move or die."There is growing ConCern about the POSSibIe impact of CIimate Change in the Antarctic.EarIier this mon th, a report revealed that melti ng ice SheetS in Gree nland and An tarctica are SPeedi ng UP the already fast PaCe of the Sea level rise. The research, PUbIiShed by theNatio nal ACademieS of SCienCei Engineering and MediCine , said, "At the CUrrent rate, the world's ocean will be, On average, at least 60cm higher by the end of the Cen tury." However, it found that the PrOCeSS is accelerati ng, and more tha n three quarters of the accelerati On SinCe 1993 is due to melt ing ice SheetS in Gree nland and An tarctica, the StUdy shows.（1）Why are the SCientists eager to go to the iceberg?A.To StUdy how the iceberg WaS formed.B.To StUdy a n ewly discovered ecosystem.C.To explore a new Way to PreVe nt CIimate Cha nge.D.To explore the geography of the LarSe n C ice shelf.（2）What do the Underlined words "this one" in the fourth ParagraPh refer to?A.The LarSe n C ice shelf.B.CIimate Cha nge in An tarctica.C.The A68 iceberg With the ecosystem ben eath it.D.The Con diti On Of ani mal SPeCieS in An tarctica.（3）What Can We Iearn about the A68 iceberg from the text?A.It is as big as London.B.It is Part of an ice shelf in the Arctic.C.It will disappear in a Very short time.D.It has Un CoVered an UnknoWn ecosystem in An tarctica.(4)What Can We infer from the last paragraph?A.There is no n eed to worry about CIimate Cha nge in An tarctica.B.The ice SheetS in Gree nland and An tarctica are melt ing at a Steady rate.C.Many CreatUreS IiVing in deep Water will die out due to CIimate Change.D.By 2100, the Sea level will have risen to a much higher level than now.【答案】(1) B(2) C(3) D(4) D【解析】【分析】本文是一篇说明文，南极地区的拉森C冰架崩解形成了一座巨大的冰山A68 iceberg。

英语阅读理解（科普环保）练习题及答案及解析一、高中英语阅读理解科普环保类1．犇犇阅读下面文章，然后从题中所给的A、B、C、D 四个选项中，选出每个问题的最佳选项。

An international team of researchers from the University of Oxford have found that the way people use the Internet is closely tied to the seasonal movements in thenatural world. Their online species searches follow the patterns of seasonal animal migrations （迁徙）.Migratory birds （候鸟） flood back to where they reproduce every spring. That migratory behavior is accompanied by some human behavior. "In English-language Wikipedia （维基百科）, the online searches for migratory species tend to increase in spring when those birds arrive in the United States," said the lead author John Mittermeier.And not just birds. Mittermeier and his team surveyed nearly 2.5 billion Wikipedia search records, for 32,000 species, across 245 languages. They also saw variable search rates for insects, horsetails and flowering plants. Seasonal trends seemed to be widespread in Wikipedia behavior for many species of plants and animals.This finding suggests new ways to monitor changes in the world's biological diversity. It also shows new ways to see how much people care about nature, and which species and areas might be the most effective targets for conservation.Mittermeier is encouraged by the search results. He commented, "I think there's a concern among conservationists （生态环境保护者） that people are losing touch with the natural world and that they're not interacting with native species anymore. And so in that sense, it was really exciting and quite unexpected for me to see people's Wikipedia interest closely related to changes in nature."Richard Grenyer, Associate Professor from the University of Oxford, says search data is useful to conservation biologists, "By using these big data approaches, we candirect our attention towards the difficult questions in modern conservation: which species and areas are changing, and where are the people who care the most and can do the most to help."（1）What have researchers found about species searches?A.They strengthen ties among people.B.They affect the animal movements.C.They differ in language backgrounds.D.They reflect animal migration seasons.（2）What is the purpose of writing Paragraph 3?A.To summarize the research process.B.To further support the research findings.C.To show the variety of species searches.D.To present researchers' heavy work load.（3）How does Mittermeier feel about the search results?A.Satisfied with Wikipedia's service.B.Worried about Wikipedia behavior.C.Amazed at people's care about nature.D.Sad about people's not getting close to nature.（4）Why does Richard think such search data is useful?A.It helps to aim at conservation targets.B.It increases interest in big data approaches.C.It keeps track of trends in biologists' work.D.It pushes people to solve difficult problems.【答案】（1）D（2）B（3）C（4）A【解析】【分析】本文是一篇说明文，牛津大学的一个国际研究小组发现，人们使用互联网的方式与自然界的季节性运动密切相关。

高一英语阅读理解(科普环保)试题(有答案和解析)含解析一、高中英语阅读理解科普环保类1．犇犇Choose the one that fits best according to the information given in the passage you have just read.The Rapid Rise and Fall of Robot BabysittersDuring the winter of 2017, an 18-year old college student named Canon Reeves spent much of his time trailing a knee-high robot around Fayetteville, Arkansas, as it delivered Amazon packages to students. The robot, created by a start-up called Starship Technologies in 2014, is basically a cooler on wheels; it uses radars, sensors, and nine cameras to make deliveries. Reeves's job was to monitor how it handled various grounds, field comments from the public, and press the off switch if necessary. He said, "People would also ask if it could deliver beer." It couldn't.Broadly speaking, jobs of caring for robots fall under the umbrella of careers in automation, which include maintenance, engineering and programming. The demand for people with this skill set is considerable, with 20 million to 50 million new jobs to be expected in this category by 2030, according to the Mckinsey Global Institute. In the year that ended in June 2018, had almost three times the number of positions on the recruitment committee that ended in June 2016.Over the last year, a 34-year-old businessman named David Rodriguez spent hundreds of hours following a machine called the KiwiBot around UC Berkeley's campus while it delivered Red bull and other drinks to students. To retrieve (检索) orders, the app encourages students to give the robot a wave; the robot's digital eyes will roll depending on its mood. Rodriguez, who heads business development for the start-up, was tasked, early on, with monitoring the KiwiBot for problems – even carrying it, should the motors fail. Since April 2018, though, the KiwiBot has largely been left unattended, and the majority of human interactions involve technical checks and loading food into the robot. To eliminate the boring work, the team is developing a restaurant robot to collect and load orders – which could happen in 2020. However, Rodriguez assured me that his staff won't be out of work. Everyone holds double roles in the company. Greater robot self-governing just means employees will shift their focus to accounting, engineering, and design. Mckinsey estimates that millions of jobs globally could be lost to automation by 2030. "A huge number of jobs will be produced as autonomous vehicles are released into the environment," Ramsey said. In 2016, Bosch started training students from Schoolcraft College, a community college in Michigan, in autonomous-vehicle repair; Toyota has trained students in maintenance as well. "We might even see a return to low-level jobs where people come and fuel the car for you," Ramsey said. "Until we can wirelessly charge, someone needs to refuel them." The hardest-to-automate industries, as it happens, are the ones that require looking after humans, such as childcare, education and health care. Robot babysitters might feel like they have scored the job of the future, but in fact, they might be better positioned.（1）What kind of robot is the one created by a start-up called Starship Technologies? A. A factory robot. B. A delivery robot. C. A restaurant robot. D. A construction robot.（2）What does "fall under the umbrella of" in Para. 2 mean?A. are in the category ofB. are under the protection ofC. are in relation ofD. are in the process of（3）According to Ramsey, what will happen when autonomous vehicles are put on the market?A. Autonomous vehicles will become much cheaper.B. A large number of people will be out of work.C. A lot of job opportunities will be created.D. Many people will turn to buying autonomous cars.（4）What does the last sentence in Para. 4 mean?A. Robot carers will have a competitive advantage in the future.B. Many new occupations like caring for robots come and go fast.C. We still need someone to look after robots in the future.D. Robots will create more and better jobs for people in the future.【答案】（1）B（2）A（3）C（4）A【解析】【分析】本文是一篇说明文，随着机器人被越来越多的应用，照看机器人的工作也随之发生了变化。

（英语）高中英语阅读理解(科普环保)试题(有答案和解析)含解析一、高中英语阅读理解科普环保类1．犇犇阅读理解According to a recent study, a new genetically modified rice can prevent infections of HIV, the virus responsible for the disease AIDS.The study reports the newly-developed rice produces proteins that attach directly to the HIV virus. This process prevents the virus from mixing with human cells. The scientists say it can remove the effect of the virus and block its spreading.The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in developing countries. Nearly two-thirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease.The new study predicts the rice-based method will lead to long-term use of the anti-HIV treatment across the developing world. Researchers said the "groundbreaking" discovery is "realistically the only way" that anti-HIV combination treatments can be produced at a cost low enough for the developing world.They say the easiest and most cost-effective way to use the rice will be to make it into a cream to be put on the skin. The HIV-fighting proteins can then enter the body through the skin. People all over the world could grow the rice and make the cream themselves. This would prevent the cost and travel required for many patients to receive treatments and medicine.The process of changing the genetic structure of food crops has been debated for some time. Critics of genetically engineered crops believe they can harm people. The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.（1）What does the author intend to do in paragraph 3?A. Stress the urgency of HIV treatments.B. Provide some data about HIV.C. Remind readers of HIV prevention.D. Introduce HIV to the public.（2）In which way will the rice be used at the lowest cost?A. By transforming it into proteins.B. By adding it to an oral drug.C. By attaching it to the HIV virus.D. By processing it into a cream.（3）What can we infer about the genetic engineering process?A. It can prevent infections of HIV.B. It can produce dangerous chemicals.C. It still requires perfecting.D. It applies to the developed world.（4）From which is the text probably taken?A. A biology textbook.B. A health magazine.C. A social webpage.D. A first aid brochure.【答案】（1）A（2）D（3）C（4）B【解析】【分析】本文是一篇说明文，介绍了科学家培育出可预防艾滋病病毒感染的转基因水稻。