2019高考英语高分话题突破科普科研类

专题16 科普类说明文2019高考题D【2019·全国I】We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. That’s bad news for the environment — and our wallets — as these outdated devices consume much more energy than the newer ones that do the same things.To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life — from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation — Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.As we accumulated more devices, however, we didn't throw out our old ones. "The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices — we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.So what's the solution（解决方案）? The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.32. What does the author think of new devices?A. They are environment-friendly.B. They are no better than the old.C. They cost more to use at home.D. They go out of style quickly.33. Why did Babbitt's team conduct the research?A. To reduce the cost of minerals.B. To test the life cycle of a product.C. To update consumers on new technology.D. To find out electricity consumption of the devices.34. Which of the following uses the least energy?A. The box-set TV.B. The tablet.C. The LCD TV.D. The desktop computer.35. What does the text suggest people do about old electronic devices?A. Stop using them.B. Take them apart.C. Upgrade them.D. Recycle them.【答案】32. A 33. D 34. B 35. A【解析】本文是一篇科普说明文。

（现代科技）李仕才【话题导读】灯柱伞是一种有雨水感应伞的灯柱，这样人们在忘记带雨伞时就不会挨淋了。

LampbrellaYou can’t always predict a heavy rain or remember your umbrella. ①But designer Mikhail Belvacv doesn’t think that forgetting to check the weather forecast before heading out should result in you getting wet. That’s why he created lampbrella, a lamp post with its own rain sensing umbrella.The designer says he ②come up with the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street ad saw the street lamps ③lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy built into a street lamp.” he said.The lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella ④on demand. Sensors then ensure that the umbrella offers p edestrians shelter whenever it starts raining.⑤In addition to the rain sensor, there’s also a 360° motion sensor on the fiberglass street lamp which detects whether anyone’s using the lampbrella. After three minutes of not being used the canopy is closed.According to the designer, the lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lighting strike. Each lampbrella would offer enough shelter for several people. Being installed at 2 meters off the ground, it would only be a danger for the tallest of pedestrians.While there are no plans to take lampbrella into production, Belyacv says he recently introduced his creation one Moscow Department, and insists this creation could be installed on my street where a lot of people walk but there are no canopies to provide shelter.灯柱伞你不会每次都预测到大雨到来或者记得带上雨伞。

（现代科技）李仕才【话题导读】灯柱伞是一种有雨水感应伞的灯柱，这样人们在忘记带雨伞时就不会挨淋了。

LampbrellaYou can’t always predict a heavy rain or remember your umbrella. ①But designer Mikhail Belvacv doesn’t think that forgetting to check the weather forecast before heading out should result in you getting wet. That’s why he created lampbrella, a lamp post with its own rain sensing umbrella.The designer says he ②come up with the idea after watching people get wet on streets in Russia. “Once, I was driving on a central Saint Petersburg street ad saw the street lamps ③lighting up people trying to hide from the rain. I thought it would be appropriate to have a canopy built into a street lamp.”he said.The lampbrella is a standard-looking street lamp fitted with an umbrella canopy. It has a built-in electric motor which can open or close the umbrella ④on demand. Sensors then ensure that the umbrella offers p edestrians shelter whenever it starts raining.⑤In addition to the rain sensor, there’s also a 360°motion sensor on the fiberglass street lamp which detects whether anyone’s using the lampbrella. After three minutes of not being used the canopy is closed.According to the designer, the lampbrella would move at a relatively low speed, so as not to cause harm to the pedestrians. Besides, it would be grounded to protect from possible lighting strike. Each lampbrella would offer enough shelter for several people. Being installed at 2 meters off the ground, it would only be a danger for the tallest of pedestrians.While there are no plans to take lampbrella into production, Belyacv says he recently introduced his creation one Moscow Department, and insists this creation could be installed on my street where a lot of people walk but there are no canopies toprovide shelter.灯柱伞你不会每次都预测到大雨到来或者记得带上雨伞。

2019高考大纲英语写作规定话题（20）:科普知识与现代技术一、话题词汇computer 电脑machine 机器software 软件technique 技术，技巧，技能equipment 设备science 科学，自然科学experiment 实验research 研究，调查project 工程，项目Internet 因特网analyze 分析conclude 总结create 创造explore 探索measure 测量reflect 反射，反应search 搜索observe 观察update 更新，使现代化simplify 使简化accurate 精确地digital 数字化的electronic 电子的automatic 自动的intelligent 智能的technological 科技的scientific 科学的theoretical 理论上的，假设的portable 轻便的，手提的radioactive 放射性的二、话题词组/短语IT(information technology) 信息技术carry out a research 进行一项研究realize one’s dream 实现某人的梦想have access to\be accessible 能使用come true 实现，成为现实be related\linked to 与有关联download information from the Internet 从网络下载信息catch\attract\draw sb.’s attention 吸引某人的注意advanced science and technology 先进的科学技术change one’s life 改变某人的生活catch up with the advanced world levels 赶上世界先进水平make a great difference 有很大影响，有很大作用play an important role in 在起重要的作用make it possible for life to develop 使得生命发展成为可能with the rapid development of science and technology 随着科技的迅速发展。

专题16 科普类说明文2019高考题D【2019·全国I】We may think we're a culture that gets rid of our worn technology at the first sight of something shiny and new, but a new study shows that we keep using our old devices(装置) well after they go out of style. That’s bad news for the environment — and our wallets — as these outdated devices consume much more energy than the newer ones that do the same things.To figure out how much power these devices are using, Callie Babbitt and her colleagues at the Rochester Institute of Technology in New York tracked the environmental costs for each product throughout its life — from when its minerals are mined to when we stop using the device. This method provided a readout for how home energy use has evolved since the early 1990s. Devices were grouped by generation — Desktop computers, basic mobile phones, and box-set TVs defined 1992. Digital cameras arrived on the scene in 1997. And MP3 players, smart phones, and LCD TVs entered homes in 2002, before tablets and e-readers showed up in 2007.As we accumulated more devices, however, we didn't throw out our old ones. "The living-room television is replaced and gets planted in the kids' room, and suddenly one day, you have a TV in every room of the house," said one researcher. The average number of electronic devices rose from four per household in 1992 to 13 in 2007. We're not just keeping these old devices — we continue to use them. According to the analysis of Babbitt's team, old desktop monitors and box TVs with cathode ray tubes are the worst devices with their energy consumption and contribution to greenhouse gas emissions（排放）more than doubling during the 1992 to 2007 window.So what's the solution（解决方案）? The team's data only went up to 2007, but the researchers also explored what would happen if consumers replaced old products with new electronics that serve more than one function, such as a tablet for word processing and TV viewing. They found that more on-demand entertainment viewing on tablets instead of TVs and desktop computers could cut energy consumption by 44%.32. What does the author think of new devices?A. They are environment-friendly.B. They are no better than the old.C. They cost more to use at home.D. They go out of style quickly.33. Why did Babbitt's team conduct the research?A. To reduce the cost of minerals.B. To test the life cycle of a product.C. To update consumers on new technology.D. To find out electricity consumption of the devices.34. Which of the following uses the least energy?A. The box-set TV.B. The tablet.C. The LCD TV.D. The desktop computer.35. What does the text suggest people do about old electronic devices?A. Stop using them.B. Take them apart.C. Upgrade them.D. Recycle them.【答案】32. A 33. D 34. B 35. A【解析】本文是一篇科普说明文。

高考作文-2019高考英语作文预测：科普知
识与科学技术
The Popular Science Knowledge and Science Technology
科普知识与科学技术
历史上有很多发明，起着很重要的作用，其中一些改变了世界。

依你之见，什么是最重要的发明，并说明原因，也就是它起的作用（不少于三点）。

80词左右。

The Most Helpful Invention
There are a lot of inventions in the history. Some of them play an important role in people’s life and some have greatly changed the world.
In my opinion, I think the most important invention is the car. First, people used to travel by train or by plane. But now, they can go any place by car. Second, when holiday comes, they can visit their family and friends by car. Third, they can also go to many places of interest to enjoy themselves.
In a word, I do agree that cars are the most important invention.。

科技类1、 A buld-it-yourself solar still(蒸馏器) is one of the best ways to obtain drinking water in areas where the liquid is not readily available. Developed by two doctors in the U.S. Department of Agriculture, it’s an excellent water collector. Unfortunat ely, you must carry the necessary equipment with you, since it’s all but impossible to find natural substitutes. The only components required, though, are a 5' 5' sheet of clear or slightly milky plastic, six feet of plastic tube, and a container— perhaps just a drinking cup — to catch the water. These pieces can be folded into a neat little pack and fastened on your belt.To construct a working still, use a sharp stick or rock to dig a hole four feet across and three feet deep. Try to make the hole in a damp area to increase the water catcher’s productivity. Place your cup in the deepest part of the hole. Then lay the tube in place so that one end rests all the way in the cup and the rest of the line runs up — and out — the side of the hole.Next, cover the hole with the plastic sheet, securing the edges of the plastic with dirt and weighting the sheet’s center down with a rock. The plastic should now form a cone(圆锥体) with 45-degree-angled sides. The low point of the sheet must be centered directly over, and no more than three inches above, the cup.The solar still works by creating a greenhouse under the plastic. Ground water evaporates(蒸发) and collects on the sheet until small drops of water form, run down the material and fall off into the cup. When the container is full, you can suck the refreshment out through the tube, and won’t have to break down the still every time you need a drink.1.What do we know about the solar still equipment from the first paragraph?A.It's delicate.B.It's expensive.C.It's complex.D.It's portable.2.What does the underlined phrase “the water catcher” in paragraph 2 refer to?A.The tube.B.The still.C.The hole.D.The cup.3.What’s the last step of constructing a working solar still?A.Dig a hole of a certain size.B.Put the cup in place.C.Weight the sheet's center down.D.Cover the hole with the plastic sheet.4.When a solar still works, drops of water come into the cup form .A.the plastic tubeB.outside the holeC.the open airD.beneath the sheet2、After ye ars of research and testing, the hybrid car was developed and put on the market. It’ s an interesting and exciting new improvement in today’ s world as we look for better ways to protect the quality of the air we breathe and conserve our natural resources.The quality of our air is affected by many different things. But one of the largest sources of air pollution is the burning of fossil fuels such as coal and gasoline which is used to power a car’ s engine. The EPA has set national standards to help control the level of harmful pollutants sent off into the air, and the automobile industry has acted by producing a hybrid car that uses less gas and therefore causes less pollution.A hybrid car is a combination of a regular car that runs on gasoline and an electric car that is battery powered. Some people tend to think that since the hybrid car is partially electric, you have to plug it in to charge it. But that’s not how it works. The 144volt battery pack is actually recharged through the energy that i s produced when the car’s brakes are used. This is referred to as “regenerative braking”, because it generates electricity.Although the hybrid car still runs on gasoline most of the time, this helps it use less gas than a regular car. When the driver stops at a traffic light, the engine automatically shuts off to save fuel. Then, as soon as the driver puts the car in gear and touches the gas pedal, the engine starts back up.Have you ever ridden in a car with someone who ran out of gas? That probabl y wouldn’t happen if you were riding in a hybrid car. It flashes a warning on its computer screen that says, “I am low on gas”. When it completely runs out, the warning reads, “YOU ARE NOW OUT OFGAS!” Then the electric power supply kicks in to let the driver travel a few more miles to a gas station.1.Which of the following is true according to the passage?A.The hybrid car will be put on the market.B.Hybrid cars run faster than regular cars.C.When the hybrid car stops at a traffic light, the driver will get a warning.D.The burning of fossil fuels is one of the largest sources of air pollution.2.According to the passage, the word “hybrid” refers to ________.ording to the passage, the word "hybrid" refers to ________.A. a high-tech discoveryB.energy savingC.a new inventionD.a combination of two things3.“Regenerative breaking” is an important process of the hybrid car because ________.A.it allows the car to come to a quick stopB.it gives the driver a smoother rideC.it produces energy to charge the batteryD.it can control the speed of the car4.Which of the following is right about the EPA?A.They designed hybrid cars.B.They outlawed (宣布……为不合法) the burning of fossil fuels.C.They set important guidelines that help control pollution.D.Their main purpose is to protect endangered plants and animals.5.Which of the following is the reason for developing hybrid cars?A.They use less gas than regular cars.B.They' re safer to drive than most cars.C.They're more modern than other cars.D.They cost less than regular cars.3、Getting stitched(缝合)up by Dr.Robot may one day be reality.Scientists have created a robotic system which did just that in living animals without a real doctor pulling,the strings.Much like engineers are designing self-driving cars,the medical research is part of a move towardautonomous surgical robots,removing the surgeon’s hands from certain tasks that a machine might perform all by itself.Doctors wouldn’t leave the bedside they’re supposed to watch,plus they’d handle the rest of the surgery. In small tests using pigs,the robotic arm performed at least as well,and in some cases a bit better,as some competing surgeons in stitching together intestinal(肠的)tissue.“The purpose wasn’t to replace surgeons,”said Dr.Kim who led the project.“If you hav e all intelligent tool that works with a surgeon,can it improve the outcome? That’s what we have done.”If you’ve heard about machines like the popular Da Vinci system,you might think robots already are operating.Not really.Today many hospitals offer,robot-assisted surgery where surgeons use the machinery as tools that they control by hand,typically,to operate through tiny openings in the body.But robot-assisted surgery has been controversial,as some studies have shown it can bring higher costs without better outcomes.Kim’s team at Children’s Sheikh Zayed Institute invented the new STAR system—it stands for Smart Tissue Autonomous Robot—works sort of like a programmable sewing machine.They added sensors to help guide each stitch and tell how tightly to pull.But the approach wasn’t perfect.In the living animals,the robot took much longer and made a few stitching mistakes while the surgeon sewing by hand made none.Kim said the robot can be sped up.Fie hopes to begin human studies in two or three years.1.What’s the best title for the text?A.A new robotic systemB.A new-style way of stitchingC.The newly-designed driverless vehiclesD.Robot surgeons one step closer to reality2.What will surgeons do when Dr.Robot is used in surgery?A.They can help pull the strings.B.They rest at the bedside.C.They join in when necessary.D.They perform other surgery.3.Some people are against using robots in surgery probably because_________.A.they can be out of controlB.they will take shorter timeC.they may be expensive to useD.they are likely to cause great pain4.What can we infer from the text?A.Dr.Robot can take the place of surgeons.B.Dr.Robot will be developed at a fast pace.C.Dr.Robot has been tested with human trials.D.Dr.Robot can free doctors’hands i n the operation.4、 A hybrid electric vehicle (混合动力车) or HEV is a vehicle driven by the combination of petrol engine and electric motor. Terrence has been driving a HEV for five years. He really doesn’t understand why more people aren’t accepting them. “I probably spend about $ 7 a day on petrol,” the taxi driver told news. com. au. In his previous conventional vehicle Terrence said he was spending up to $ 30 a day on petrol, meaning he saves almost $ 6000 every year.The Toyota spokesman said this was quite a high saving and official tests estimate (估计) an average driver would only save about 33 percent off their current bill. This means a driver paying $ 30 a day on petrol would see their bill drop to about $ 20 using the hybrid. “A taxi driver that drives in built-up areas and spends little time on highways will notice a higher fuel saving,” he said. “Low speeds allow the electric motors to be used more and the petrol engine used less.”While some people are skeptical about how reliable hybrids are, Terrence said he had never run out of power. His Camry cost about $ 34,000 and so after five years, it’s nearly paid for itself. “For cab drivers, it’s a real advantage because of the cost-effectiveness,” he said.Terrence has no complaints about the car. “I l ove it, the calm and quietness of it, the simplicity of it—you just jump in and go. The maintenance(保养)is really low. But the only difficulty is finding someone to service the car as there are not many experienced mechanics(机修工).”Terrence said it’s “extraordinary” that more drivers aren’t buying more hybrid electric vehicles and that governments are not encouraging this more. “I think people have a view that you have to plug it in, which is not true. A lack of information about the cars may be stopping people from taking the plunge. It’s not promoted at all for the public to understand—it’s simplifying the actual owning of a car—you don’t have to do so many things to own it and run it, it’s just so much simpler. Why wouldn’t the government promote such a thing?”1.How much does an average driver save each day by driving a hybrid, according to the Toyota spokesman?A.$30B.$20C.$10D.$72.Terrence’s problem with his HEV at the moment is about the ________.A.speedB.powerC.priceD.service3.When saying “extraordinary”, Terrence thinks it is ________.A.understandableB.wonderfulC.doubtfulD.unbelievable4. What does Terrence think prevent the popularity of hybrid cars?A.The difficulty in servicing the car.B.The restriction of the government.C.The lack of information about HEV.D.The inconvenience with charging the car.5、Humans have been keeping animals as pets for tens of thousands of years, but Dr. Jean-Loup Rault, an animal scientist at the University of Melbourne in Australia, believes new companions are coming: robot pets.“Technology is moving very fast,” Rault told ABC News, “The Tamagotchi in the early 1990s was really the first robotic pet, and now Sony and other big companies have improved them a lot.”This may not sit well with pet lovers. After all, who would choose a plastic toy over a lovely puppy? But Rault argues that the robotic kind has a lot going for it: “You don’t have to feed it, you don’t have to walk it, it won’t make a mess in your house, and you can go on a holidaywithout feeling guilty.” The technology also benefits those who are allergic to pets, short on space, or fearful of real animals.It’s not clear whether robot pets can replace real ones. But studies do suggest that we can bond(紧密联系)with these smart machines. People give their cars names and kids give their toy animals life stories. It’s the same with robots. When Sony stopped its repair service for its robot dog Aibo in March 2014, owners in Japan held funerals.As an animal welfare researcher, Rault is concerned about how robotic pets could affect our attitudes towards live animals. “If we become used to a robotic companion that doesn’t need food, water or exercises, perhaps it will change how humans care about other living beings.” He said.So are dogs and cats a thing of the past, as Rault predicts? For those who grew up with living and breathing pets, the mechanical kind might not do. But for our next generation who are in constant touch with smart technology, a future in which lovely pets ne edn’t have a heartbeat might not be a far-fetched dream.1.What does the underlined part “sit well with” in Paragraph 3 most probably mean?A.Be refused by.B.Be beneficial to.C.Receive support from.D.Make a difference to.2.Who is fond of keeping robot pets?A.Those who are not fearful of real animals.B.Those who grew up with living beings.C.Those who will develop strong bond with their machines.D.Those who are often exposed to smart technology.3.What may be the best title for the text?A.Robot pets are comingB.The popularity of robot petsC.Living pets are dying outD.The advantages of robot toys6、Modern day robots may not be as entertaining as R2D2 or the robot from Lost in Space, but robots are very important to space exploration and are being used in a variety of different ways for several important reasons.Robots make great explorers on planets, moons, and other landing areas. Aside from the earth, just about every surface in the solar system is unsafe for humans to explore. The air on most other planets is insufficient for humans to breathe, making it necessary to wear a space suit and oxygen equipment. The temperatures on these surfaces are much too hot or much too cold for any humans to withstand. Plus there would be complications with radiation, weather, and a lack of gravity. Robots have much less limitation in these areas and can survive much longer under these conditions.Robots are designed for collecting scientific data. Robots are also able to perform many tasks at one time and can process information much quicker and more efficiently. Important scientific projects from detecting minerals, analyzing ground samples, and finding water are all performed much quicker and accurately by robots.The use of robots has made the cost of space exploration much less expensive than it would cost for humans to do the work. In order to successfully send humans into space we would need to build a vehicle that can not only carry humans, but also enough food and water to keep them alive for the duration of the trip. Moreover, robots have no problems working for hours on end. Robots never c omplain, they don’t require food or water, and they never need a bathroom break.Over the past 30 years or so there have been many different types of robots used successfully in the exploration of space. Perhaps the most famous and successful robots are Spirit and Opportunity who have both been exploring the surface of Mars. They have both been very successful with experiments on soil and rocks and have even found evidence of water in Mars’ history.1.Which of the following would be the best title for the passage?A.The Development of RobotsB.The Discovery of Space ExplorationC.No Robots, No Space ExplorationD.Robots Are Used in Space Exploration2.According to the passage, which of the following is NOT true?A.The use of robots in space exploration costs more than the use of humans.B.It is dangerous for humans to explore other surfaces in the solar system except the earth.C.Both Spirit and Opportunity have found the evidence of water on Mars.D.Many different types of robots have explored the space successfully.3.The underlined word “withstand” most probably means “______”A.remainB.bearC.defeatD.develop4.What is the writer's attitude in this passage?A.Negative(消极的)B.Critical(批判性的)C.Subjective(主观的)D.Objective(客观的)7、US private rocket company SpaceX has announced that two private citizens have paid to be sent around the Moon. The mission (任务) is planned for late 2018. SpaceX CEO Elon Musk said, "This presents an opportunity for humans to return to deep space for the first time in 45 years."The two unnamed people will fly aboard a spaceship which is set for its first unmanned test flight later this year. The co-operation of America's NASA space agency had made the plan possible. Mr. Musk said, "The two passengers will travel faster and further into the solar system than any before them." Like the Apollo astronauts before them, these individuals will travel into space carrying the hopes and dreams of all humankind, driven by the universal human spirit of exploration."We expect to conduct health and fitness tests, as well as begin initial training later this year. The first mission would be unmanned, and the next one―with crew―was expec ted in the second quarter of 2018," the rich businessman and inventor said, "The first passengers are entering this with their eyes open, knowing that there is some risk here. They're certainly not childish, and we'll do everything we can to reduce that risk, but it's not zero."The space tourists would make a circle around the Moon, scanning the lunar surface and then going well beyond. However, the mission will not involve a lunar landing. "If NASA decided totake part in a lunar fly-by mission, then the agency would have privilege," Mr. Musk said. The US has not sent astronauts to the Moon since the early 1970s.1.Which of the following statements is true according to the text?A.The two tourists can't afford to fly around the moon.B.Space travels are rooted in the spirit of human exploration.C.Initial training is expected to be conducted at the beginning of 2018.D.The two tourists are expected to fly at a slow speed.2.The agency has privilege because ______A.it needs co-operation with Mr. MuskB.it has previous technical skillsC.it will be able to remove all the risksD.it has to make money for research3.Where can you most probably read the text?A.In a textbook.B.In a science fiction.C.In a travel brochure.D.On a news website.4.What can be a suitable title for the text?A.The Coming Moon Trip of Two Private CitizensB.An Opportunity to Explore Space for the First TimeC.A Paid Trip Planned by SpaceX to 'Land on the MoonD.Two Unmanned Missions of Circling around the Moon8、 A 10-year-old boy rides his bicycle slowly to a busy crossing. In front of him, cars and SUVs speed by, without pausing. He waits for a gap in traffic. When he sees one, he pushes off, gaining speed. But by the time he's halfway across, a car is almost coming in front of him. He makes it to the other side—but just barely. This scene usually happens across the country, but in this case, it occurred in a completely safe environment.The bike is stationary. The street is actually a laboratory at the University of Iowa, surrounded by three huge screens. The ‘‘ cars ’’ are 3-D virtual images. And the entire process is observed byresearchers who are trying to understand the factors that put children at risk when crossing the street on a bike or on foot.Crossing the street is one of the first experiences in a child's life. The researchers in Iowa are looking to learn more about that decision-making process with the goals that include giving parents information that could help them when they’re discus sing safety with young children. The risks children face on the road are real: 531,340 children were injured in 2014 on a bicycle.Most of the data the team has collected focus on children crossing the street on bicycles. Researchers record when kids believe it's safe to cross the street, children in the 10-12-year-old group often are actually close to adults in terms of the gaps they think safe to cross. The problem is how well they are able to act on those judgements.“Their timing of movement is not as good as adults,” Plumert, one of the researchers said. "They delay when they start crossing. As a result,they actually have less time to spare before the next car comes."When adults anticipate(预见) a gap in traffic after an approaching car passes, they'll actually begin crossing while that car is still in front of them. Children wait until that first car hasgone by completely, giving them less time to cross before the next car nears.1.What does the first paragraph mainly tell us?A.An experiment being done on kids riding bikes.B.An accident which happened at a busy crossing.C.A scene which was filmed on a country road.D.A terrible case made up by a group of researchers.2.What does the underlined word "stationary" most probably mean?A.Moving slowly.B.Speeding up.C.Remaining still.D.Being in danger.3.What can we infer from the third paragraph?A.Riding a bicycle poses a risk to children.B.Crossing a street on foot is very safe to kids.C.Parents know little about safety on the road.D.Drivers often fail to spot the cycling children.4.What is the result of the experiments?A.Children’s judgement on distance is usually not correct.B.Children usually cross while the car is still in front of them.C.Children can’t wait for the approaching cars to pass by.D.Children have less time to cross by waiting for the cars to go by completely.答案以及解析1答案及解析：答案：1.D; 2.B; 3.C; 4.D解析：1.推理判断题。

专题十六阅读理解之科普类说明文1.【2019·湖北卷】DThe oddness of life in space never quite goes away. Here are some examples.First consider something as simple as sleep. Its position presents its own challenges. The main question is whether you want your arms inside or outside the sleeping bag. If you leave your arms out, they float free in zero gravity, often giving a sleeping astronaut the look of a funny balled （芭蕾）dancer. “I’m an inside guy,” Mike Hopkins says, who returned from a six-month tour on the International Spac e Station. “I like to be wrapped up.”On the station, the ordinary becomes strange. The exercise bike for the American astronauts has no handlebars. It also has no seat. With no gravity, it’s just as easy to pedal violently. You can watch a movie while you pedal by floating a microcomputer anywhere you want. But station residents have to be careful about staying in one place too long. Without gravity to help circulate air, the carbon dioxide you exhale (呼气) has a tendency to form an invisible （隐形的）cloud around you head. You can end up with what astronauts call a carbon-dioxide headache.Leroy Chiao, 54, an American retired astronaut after four flights, describes what happens even before you float out of your seat,”Your inner ear thinks your’re falling . Mean while your eyes are telling you you’re standing straight. That can be annoying—that’s why some people feel sick.” Within a couple days —truly terrible days for some —astronauts’ brains learn to ignore the panicky signals from the inner ear, and space sickness disappears.Space travel can be so delightful but at the same time invisibly dangerous. For instance, astronauts lose bone mass. That’s why exercise is considered so vital that National Aeronautics and Space Administration (NASA) puts it right on the workday schedule. The focus on fitness is as much about science and the future as it is about keeping any individual astronauts return home, and, more importantly, how to maintain strength and fitness for the two and a half years or more that it would take to make a round-trip to Mars.63.What is the major challenge to astronauts when they sleep in space?A. Deciding on a proper sleep positionB. Choosing a comfortable sleeping bagC. Seeking a way to fall asleep quicklyD. Finding a right time to go to sleep.64.The astronauts will suffer from a carbon-dioxide headache when _____.A. the y circle around on their bikesB. they use microcomputers without a stopC. they exercise in one place for a long timeD. they watch a movie while pedaling65.Some astronauts feel sick on the station during the first few days because _____.A. their senses stop workingB. they have to stand up straightC. they float out of their seats unexpectedlyD. whether they are able to go back to the station66.One of the NASA’s major concerns about astronauts is _____.A. how much exercise they do on the stationB. how they can remain healthy for long in spaceC. whether they can recover after returning homeD. whether they are able to go back to the station【解析】试题分析：这是一篇说明文。

（新课标）2019届高考英语二轮复科普知识类习攻关篇专题一科普知识类专题一专项强化·训练Researchers may have discovered a perfect material of dieting—low fat cake and cheese.British researchers say they have created a protein (蛋白质) that can replace fat perfectly.The proteins will enable food producers to remove much of the fat used in their products but without reducing product quality.Funded by team from University of Edinburgh,the researchers have produced the modified (调整了的) proteins that easily break down and therefore work nearly the same as the fats do during food production.“We’ve paved the way for the development of modified proteins that can be used to produce a wider range of appealing low-fat foods,”said Dr.Steve Euston,who led the research.“The result could be important for heal th benefits,as well as a reduction in the burden on the National Health Service (NHS) caused by many weight-related health problems.”Protein-for-fat substitution (替代品) is not a completely new idea,but to date it has been limited to products such as yogurts.In cheeses and cakes it has proved less successful in ensuring the original taste and texture fundamental to consumer satisfaction,mainly because proteins could not mimic the behavior of fats closely enough.By studying the proteins’ chemical structure,the team has developed a detailed understanding of how proteins behave when they are heated or go through other food producing processes.The proteins could encourage development of a wider choice of low-fatfoods,helping consumers to eat more healthily and reducing weight-related health problems.The team has achieved particularly promising results in using proteins to replace eggs,which is commonly used in bakery items.Such substitution not only cuts fat content;because eggs can be subject to sharp changes in price.It could also cut the cost products and so encourage consumers to eat more healthily.【语篇导读】本文主要介绍了一种新型蛋白质,可以替代脂肪。

专题三阅读理解第一节阅读理解解题方法突破E. 科普文类1. 体裁特点综述科普类的文章通常以讲述一个科学道理、介绍一项新的发现或最新研究成果为主要内容。

2. 针对该文体的特点，我们如何快速有效地对文章进行整体把握？针对科普类的阅读文章，考生应该迅速浏览文章，把握：（1）文章介绍的主要内容是什么？（2）该科学现象或最新发现是如何产生的？（3）该现象或道理的发现对人们生活已经或将会带来什么影响？3. 解题方法突破（1）迅速阅读文章的第一段，把握该文章介绍的主题内容；（2）阅读全文，了解该发现或研究成果的形成过程及影响；（3）带着文章后提出的疑问迅速定位相关信息，不作不确信的猜测，确保解题的正确性。

体裁：科普文限时： 6分钟词汇量： 331难度:适中In a world with limited land, water and other natural resources(资源), the harm from the traditional busine ss model is on the rise. Actually, the past decades has seen more and more forests disappearin g and globe becoming increasingly warm. Peopl e now realize that this unhealthy situation must be changed, and tha t we must be able to develop in sustainable(可持续的) way s. That means growth with low carbon or development of sustainable products. In other words, we should keep the earth healthy while using its supply of natural resources.Today, sustainable development is a proper trend in many countries. According to a recent study, the global market for low carbon energy will become three times bigger over the next decades. China, for example, has set its mind on leading that market, hoping to seize chances in the new round of the global energy revolution. It is now trying hard to make full use of wind and solar energy, and is spending a huge amount of money making electric cars and high speed trains. In addition, we are also seeing great growth in the global markets for sustainable products such as palm oil(棕榈油)， which is produced without cutting down valuable rainforest. In recent years the markets for sustainable products have grown by more than 50%. Gove rnments can fully develop the potential of these new markets. First, they can set high targets for reducing carbon emission(排放) and targets for saving and reusing energy. Besides, stronger arra ngement of public resources like forests can also help to speed up the development. Finally, governments can avoid the huge expenses that are taking us in the w rong direction, and redirecting some of those expenses can accelerate the change from traditional model to a sustainable one.The major challenge of this c entury is to find ways to meet the needs of growing population within the limits of this single planet. That is no small task, but it offers abundant new chances for sustainable product industries.文本把握1. 文章主要介绍了什么？2. 文章为什么提到了中国？（）1. The traditional business model is harmful because of all the following EXCEPT that .A. it makes the world warmerB. it consumes natural resourcesC. it brings severe damage to forestsD. it makes growth hard to continue（）2.What can we infer from Paragraph 2?A. China lacks wind and solar energy.B. China is the leader of the low carbon market.C. High speed trains are a low carbon development.D. Palm oil is made at the cost of valuabl e forests.（）3. To full develop th e low carbon markets, government can .A. cut public expensesB. reduce carbon emissionC. develop public resourcesD. encourage energy conservation（）4. We can learn from the las t paragraph that business es have many chances to .A. develop sustainable productsB. explore new natural resourcesC. make full use of natural resourcesD. deal with the major challenge（）5. What is the m ain purpose of the passage?A. To introduce a new business model.B. To compare two business models.C. To predict a change of the global mar ket.D. To advocate sustainable development.尝试解答请同学们先做练习，后看详解，效果会更好哦！试试看！例题详解本文是一篇科普说明文，主要讲述鉴于全球变暖，许多资源面临枯竭，因此许多国家（尤其是中国）提倡走可持续发展和低碳生活的道路，大意是说明对世界的可持续发展造成负面影响的主要问题之一——环境问题。