According to related new research, tropical cyclones(热带气旋), ranging from hurricanes to typhoons, are moving more slowly across the planet than they did decades ago, meaning that they get more destructive power and last longer.
It may seem like a good thing that cyclones crawl at a slower speed, but in fact it’s quite the opposite. Although the cyclones are moving slower across the ground, they still get high wind speeds inside, which on the contrary makes hard rains stay longer over communities.
“Nothing good comes out of a slowing storm,” says James Kossin, with the National Oceanic and Atmospheric Administrations Center for Weather and Climate in Madison, Wisconsin. “It can increase storm surge. It can increase the amount of time that structures are subjected to strong wind. And it increases rainfall.”
According to Kossin’s findings, changing storm patterns are causing greater destruction in another way. He noted that the speed of global tropical cyclones slowed by an average of 10 percent from 1949 to 2016. The pace of the storms slowed even more as they made landfall in some regions. In the western North Pacific, it declined by nearly a third. That means there will be more time for a storm that may already contain much moisture (水汽) to release more of it in each spot.
Basing his research on the details of nearly 70 years’ worth of storms, Kossin did not try to determine the cause of the slowdown. Even so, the shift is, exactly as he and other cyclone experts said, the expected result of climate change.
Kossin’s work was considered to be “pretty convincing” by Christina Patricola, a scientist with the Climate and Ecosystem Sciences Division of California’s Lawrence Berkeley National Laboratory.
It is Kossin’s hope that a model demonstrating which communities are likely to be at the highest risk could be developed by scientists. Given that in some regions, the storms are moving poleward and gaining in strength as well, places not normally passed by could be affected by unusually heavy rainfall as a result. “These are not good things to be combining,” he says.
1. Why are cyclones more destructive when they crawl more slowly?| A．They get higher wind speeds inside. |
| B．They cause more serious climate change. |
| C．They move poleward and affect more regions. |
| D．They make rains and winds stay longer over a place. |
| A．The speed of the storms there slows more. |
| B．It has much wetter air. |
| C．It has higher risk of being hit by storms. |
| D．The storms there cause less damage. |
| A．Ambiguous. | B．Cautious. | C．Critical. | D．Approving. |
| A．Entertainment. | B．Science. | C．Health. | D．Education. |
相似题推荐
【推荐1】A cheap printed sensor(传感器) could transmit wildfire warnings. Wildfires have recently destroyed the forests across the world, and their gravity is increasing. Hoping to reduce harm, researchers led by Yapei Wang, a Chinese chemist of Renmin University, say they have developed an inexpensive sensor to detect(监测) such fires earlier with less effort.
Current detection methods rely heavily on human watchfulness, which can delay an effective response. Most wildfires are reported by the general public, and other alarms come from routine foot patrols and watchtower observers. Passing planes and satellites also occasionally spot something, but "the fire first appears on the ground," Wang says. "When you see the fire from the sky, it is too late."
The team says its new sensor can be placed near tree trunks' bases and send a wireless signal to a nearby receiver if there is a quick temperature increase. That heat also powers the sensor itself, without replacing batteries. The team printed the substances onto ordinary paper to create a sensor for just $ 0.40.
But improving coordination among the different companies involved in firefighting is even more important to deal with, says Graham Kent, an earthquake expert at the University of Nevada, Reno, who was not part of the study. Kent is director of ALERT Wildfire, a network that uses cameras and crowd sourcing to watch for fires in California, Nevada and Oregon. "The whole way that you respond to a fire until it's put out is like a ballet," he says. "You'd have to choreograph(设计)it just so, with resources accurately used at the right time and place and in the right order from detection to confirmation to assignment to extinguishment(熄灭). Fire detection is just step one."
Wang says his team's next steps are to extend the device's signal range beyond the current 100 meters, which can limit practical use, and to develop a protective shield（防护罩） for it. The transmitter's effectiveness, he notes, will also need to be examined in the field ahead.
1. What does the underlined word "gravity" in paragraph 1 probably mean?| A．Pull. | B．Extinction. | C．Popularity. | D．Seriousness. |
| A．Its price remains high. | B．Its batteries are replaceable. |
| C．It can detect fires earlier and easier. | D．It can reduce firefighters' pain. |
| A．Firefighting is easy but crucial. | B．Fire detection resources are rich. |
| C．Putting out a fire is an orderly activity. | D．Technology is the key to extinguishing a fire. |
| A．Improving and testing it. | B．Limiting its use and transmission. |
| C．Examing and reducing its signal range. | D．Getting it on the market ahead of time. |
【推荐2】What is the greatest threat to mankind? Maybe different people come up with different answers. However, there is no denying the fact that the only threat to humankind, apart from humankind itself, is, without any doubt, the nature. Natural disasters are the result of natural environmental processes that have a damaging effect on people. Natural disasters can come in many forms: such as geological events like earthquakes, tsunamis or mud-rock flows, climatic events like storms, hurricanes or tornadoes and fire events like forest fires and wildfires.
The damage done by natural disasters is mainly as a result of our inability to predict exactly when they will happen. Although great progress has been made in designing and developing forecasting models for some natural disaster, complete certainty is still impossible. Even to be pessimistic there is a possibility that human beings will never achieve accurate prediction of the happening of all natural disasters.
What's more, even though we were able to predict these disasters from nature, preventing them is equally impossible. So we only have two ways to both prevent injuries or deaths and reduce economic losses to the least. These two methods are to prepare before a natural disaster comes to hit, and to manage the necessary resources and public services after a natural disaster strikes.
These two things have always been at the leading position of the projects of both national governments and international organizations. In the United States, the Federal Emergency Management Agency (FEMA) is responsible for the "preparedness, response and recovery planning" of both man-made and natural disasters.
Most natural disasters cannot be prevented, and both emergency preparation and good disaster management are the best ways to deal with them. Although natural events may appear to serve no purpose but simply to punish and destroy, natural disasters, a perfect symbol of the great power of the nature, are display of our planet's evolution and its state of change.
1. Which can't be regarded as a similarity between tornadoes and earthquakes?| A．They can not be prevented. |
| B．They are both geological events. |
| C．They cause damage to people. |
| D．They are both the result of natural environmental processes. |
| A．it is very difficult to predict when exactly they will happen |
| B．our forecasting equipment is too old for many natural disasters |
| C．we don't do enough preparation before natural disasters strike |
| D．we don't have the necessary public services to use after natural disasters strike |
| A．natural disasters can not be predicted at all |
| B．human beings are pessimistic to the future |
| C．being well-prepared can avoid economic losses |
| D．good preparation and disaster management are advisable. |
| A．a symbol of the power of nature | B．the greatest threat to mankind |
| C．Natural disasters and mankind | D．reduce losses to the least |
【推荐3】This summer has brought extreme heat and droughts to places around the world. The droughts are leading to serious problems and the effects of the droughts are likely to be felt for years. Droughts aren’t new, but Earth’s rising temperatures because of global warming are making them much harder to avoid.
The drought in the Horn of Africa may be the most serious situation. For several years, the area has had very little rain during the rainy seasons. The dry conditions have killed millions of farm animals and destroyed the crops of farmers.
The drought is causing energy problems in Europe, too. The low water levels have cut the amount of hydroelectric power that can be produced. Some rivers are so low that the heavy boats that carry coal can’t travel on them.
Farmers in California and Arizona have been hit particularly hard. California has put limits on water use across the state. Now water is being limited in other places. When there are water limits, farmers aren’t able to grow as many crops. That can drive up food prices, and that affects everyone.
China is facing similar problems. The drought has dried up much of the water in the Yangtze, China’s longest river. That has cut the amount of energy produced by the world’s largest dam by 40%.
China hasn’t been able to produce enough energy, since millions of people are using electricity to keep cool. The government is calling on the public to turn off the air conditioner when it is not too hot. The country is trying to make it rain by shooting chemicals into clouds. But this is an uncertain and temporary response.
There are no easy solutions to any of these droughts. It took years to create the climate crisis, and it will take a long time to get it under control. For now, governments and people will need to carefully manage water supplies and other resources to limit the damage as much as possible.
1. What has been affected by droughts according to the passage?| A．Technology. |
| B．Transportation. |
| C．Education. |
| D．Tourism. |
| A．Bringing water from other countries. |
| B．Finding replacement for rain water. |
| C．Limiting the use of drinking water. |
| D．Controlling the use of electricity. |
| A．Concerned. |
| B．Satisfied. |
| C．Disappointed. |
| D．Optimistic. |
| A．Worldwide Droughts Appeared as New Problems |
| B．China Is also Facing the Serious Drought Problem |
| C．Droughts Cause Problems Around the World |
| D．Many Reasons Lead to the Drought Problem |
【推荐1】Have you ever tried 3-D printing? A team of seven students from No. 34 Middle School in Zhengzhou, Henan, have won awards for their creative 3-D printing works.
Two of the team's works took home the top prize at the International Youth Innovation Design Competition. It was held in France this summer. One of their works had the theme “Chinat's New Era (时代)”. The other work was an ancient Chinese palace. They sent the work as a gift to local officials in Lille, France.
The team members learned how to print in their school's 3-D printing club. They took classes twice a week to learn 3-D printing. To make 3-D printed items, they fist draw a blueprint (蓝图). Then, they use a computer to design models of the pieces they need. After that, they use a 3-D printer to print the pieces and assemble (组装)them, as Liu Songyuan, 14, said.
But knowing how to use the tools is just one part of mastering 3-D printing. One also has to have imagination. To show the theme “China's New Era”, they printed out items standing for high-speed trains, bike sharing, cashless payment and online shopping. They placed these items around a dragon, which represented China. They made this work within just three hours, winning a national 3-D printing competition in China and later the international competition.
When they got to the international competition, they wanted to present something that stood for traditional Chinese culture. They were inspired (启迪)by a trip to the palace Museum. “When we saw the buildings there, we thought “That's it!” said Zhang Jiuxing, 14. They took photos of the buildings and did a lot of research to make their 3-D-printed works more realistic (逼真的). “We will continue to learn about this technology and make more creative things,” Zhang added.
1. How many students are there in the team?| A．8. | B．2. | C．6. | D．7. |
| A．Russia. | B．The UK. | C．China. | D．France |
| A．Twice a week | B．Once a week. | C．Once a month. | D．Three times a week. |
①They use a computer to design models of the pieces they need.
②They use a 3-D printer to print the pieces and assemble them.
③They draw a blueprint.
| A．①②③ | B．②③① | C．③①② | D．③②① |
| A．if you know how to use the tools, you can master 3-D printing |
| B．it's still a long way for the students to make creative and realistic 3-D works |
| C．it's easy for the students to make a 3-D-printed work |
| D．both of the works stood for China's traditional culture |
【推荐2】Teens are really good at ignoring(忽视)their parents’ messages, which is why Nick Herbert, a father from London, created an app called ReplyASAP.
Nick came up with the idea for ReplyASAP after realizing that simply giving his son a mobile phone didn’t make getting in touch with him easier. He wasn’t answering Nick’s messages as fast as Nick had expected. It was driving the father crazy, so he set out to create a messaging app that would make reaching kids easier for parents. It took eight months and a lot of money to complete the project, but Nick thinks Reply ASAP could really take off, as it is likely to give parents some peace of mind.
ReplyASAP is designed with parents in mind. It lets them know if their child has seen their message, or if their phone is turned off. However, most importantly, it makes it impossible for kids to ignore messages. When they receive a text from their parents, the app basically locks their phone, taking over the home screen and sounding an alarm until the message is answered.
It seems that ReplyASAP will become teenagers’ biggest nightmare(噩梦), by making it impossible to ignore their parents. Nick agrees that it’s a possibility, but adds that his app shouldn9 t be parents9 most important way of communicating with their children.
ReplyASAP is free to download (下载), but offers a series of plans, depending on how many people you are planning to get in touch with. It works only on Android now. But that’s only a short-term shortcoming(缺点), as Nick wants to make ReplyASAP be found on the Apple Store as soon as possible.
1. What drove Nick Herbert crazy?| A．Creating a messaging app. |
| B．Ignoring his parents9 messages. |
| C．His son not replying to him in time. |
| D．Not getting in touch with his friends. |
| A．Parents. | B．Kids. | C．Teachers. | D．Workers. |
| A．It works only on Android at present. |
| B．It’s impossible to ignore their parents. |
| C．It allows teenagers to fight with their parents. |
| D．It has a bad influence on their study. |
| A．Children will study better with ReplyASAP. |
| B．People have to pay to download ReplyASAP. |
| C．Nick spent ten months completing ReplyASAP. |
| D．ReplyASAP can’t work on the Apple Store now. |
【推荐3】Coffee helps millions get going. Now a company called Bio-bean wants it to get buses going too. Arthur Kay is the founder.
The company collects waste coffee grounds (渣滓) from all across the UK, from thousands of different outlets and then turns those waste coffee grounds in the factory in Cambridgeshire into advanced biofuels. The United Kingdom produces half a million tons of coffee grounds per year. Most are thrown away. Bio-bean gets grounds from everywhere from coffee shops to instant coffee factories. They extract (提炼) the oil to use as part of a 20% bio-diesel blend (生物柴油混合物). And the real driver for this is to make a fuel that’s usable with an existing engine. So the key with Bio-bean is to deliver fuels that can work at scale today.
London’s bus network is partly fueled by bio-diesel blends made from cooking oil and animal fat to reduce greenhouse gas emissions. Bio-bean’s contribution is modest. It has produced enough to run one bus for a year on 20% coffee oil. It is just a start.
If you got all the waste of coffee grounds in London, it’d be enough to power about one third of London’s bus networks, which can be a significant contribution, but it’s not going to solve everything in one go. Kay hopes to eventually produce 100% coffee-based bio-diesel and he would like to take the technology global. Coffee is one of the world’s most popular drinks and millions of tonnes of waste coffee grounds have been produced and wasted every year. So Bio-bean wants to work with companies to save money and importantly save CO2 emissions.
So your morning jolt can fuel both you and your ride to work.
1. What does Bio-bean turn waste coffee grounds into?| A．Cooking oil. | B．Biofuels. | C．Coffee additives. | D．High quality fat. |
| A．They recycle all the coffee grounds in the UK. |
| B．They reduce London’s gas emissions by one third. |
| C．They save coffee shops in the UK millions of dollars. |
| D．They produce coffee oil for one bus to operate for a year. |
| A．Optimistic. | B．Doubtful. | C．Critical. | D．Defensive. |
| A．Bus. | B．Coffee. | C．Bio-bean. | D．Coffee grounds. |
【推荐1】These days, it seems like everyone wants to go out into space and live on new planets.Rather than depend on another pre-existing planet, could we make a new, proper planet ourselves?
To start with, if we do want to be living on it, we should find a good place in space to put the new planet. We’d want it to be in a habitable zone, meaning the planet should be at the right distance from its star to make sure there would be perfect temperatures and most importantly, liquid(液态的) water.
We’d also need the right materials to make the planet. Our Earth is made up of many different elements(元素). If we made our own new planet we’d probably want it to have similar elements and a similar structure(结构) We’ d also want enough water to form some oceans.
But even if we get all of the materials creating a new planet like Earth could have many troubles. It might be something more like a huge space station. It would be pretty expensive if we wanted it to be super big.
We would probably also need a lot of food since there s going to be many scientists and astronauts out in space working on this project!
According to NASA, each astronaut uses about 0. 83 kilograms of food per meal, including 0.12 kilograms of packaging(包装) material. Without the weight of the packaging material, we’d need about 780 kilograms of food just to feed one astronaut for a year.
Putting all these together could make it possible to make our own planet one day! In reality, creating a new planet would probably require a very modern technology and there would be tons of other things to think about. And if this is even possible, it likely won’t happen for a very long time.
1. What's the first thing we should do if we want to create a new planet?| A．To prepare enough food. |
| B．To design its inner structure. |
| C．To find a proper place to set the planet. |
| D．To collect materials similar to our Earth. |
| A．Our Earth. | B．Outer space. |
| C．The new planet. | D．The ocean water. |
| A．About 0. 12 kilograms. | B．About 0. 71 kilograms. |
| C．About 0. 83 kilograms. | D．About 0.95 kilograms. |
| A．It is a waste of money and time. | B．It should be one of NASA’S next plans. |
| C．It is not a good idea for humans. | D．It won’t come true in the near future |
【推荐2】The peak of Mount Everest is the highest point in the world, which extends 29,029 feet (8,840 meters) above sea level. On Earth, mountains can’t grow much higher than Mount Everest. So what stops our planet’s mountains from growing forever?
“There are two major reasons for that,” said Nadine McQuarrie, a professor in the department of geology at the University of Pittsburgh.
The first reason is gravity. Many mountains form because of movements in Earth’s surface layer known as plate tectonics (板块构造论). This theory describes the Earth’s crust (壳) as mobile and dynamic, divided into large pieces that move around with time. When two plates crash, the impact forces materials on their touching edges to move upward. This is how the Himalayas mountain range, which includes Mount Everest, formed.
“The plates keep pushing together and the mountain keeps growing, until it becomes too hard to do that work against gravity,” McQuarrie told Live Science. At some point the mountain becomes too heavy, and its own weight stops the upward growth caused by the crash of those two plates.
But mountains can also form in other ways. Volcanic mountains, like those on the Hawaiian Islands, for example, form from boiling rock that erupts through the planet’s crust and begins piling up. “But no matter how mountains are formed, they eventually become too heavy and succumb to gravity,” McQuarrie said.
In other words, if Earth had less gravity, its mountains would grow higher. That is indeed what happened on Mars. Mars’ Olympus Mons, the tallest known volcano in the solar system, extends 82,020 feet (25,000 meters) high, nearly three times taller than Mount Everest.
The second reason relates to rivers. At first, rivers make mountains appear taller — they carve into the edge of the mountains and create deep cracks near a mountain’s base. But as rivers gradually destroy materials, their channels may become too steep. This can cause landslides (滑坡) that carry materials away from the mountain and limit its growth.
1. What can we learn about Mount Everest?| A．It continues growing slowly. |
| B．It is formed by a volcanic eruption. |
| C．Its heavy weight stops its further growth. |
| D．Its peak is the highest point in the solar system. |
| A．Break away from. | B．Give in to. |
| C．Come up with. | D．Get close to. |
| A．Mountains near rivers grow higher. |
| B．Landslides occur frequently on high mountains. |
| C．Rivers can also limit mountain growth. |
| D．Rivers don’t limit mountain growth as much as gravity. |
| A．To explain why mountains can’t grow forever. |
| B．To describe how mountains form. |
| C．To list different kinds of mountains. |
| D．To compare mountains on different planets. |
【推荐3】In September 2019, a man named Anuchit was riding his motorcycle down a highway in Thailand. He spotted a sad-looking dog sitting on the side of the mud. The poor dog seemed to be waiting for someone.
Later that day, Anuchit rode by that exact same spot and found the same dog still sitting there. After stopping his bike to see if the dog was OK, Anuchit happened to meet a local person named Saowaluck, who told him the animal's backstory. Saowaluck kept finding the dog at that same corner in 2016. She brought him to the vet, named him Leo and adopted him. But days later, Leo disappeared. Sanwaluck found him at the same corner along the highway and returned every day to give him food and water. She loved him, but he wasn't ready to accept her as his new owner.
After the motorcyclist shared Leo's story on the Internet, the dog's former owner came forward. An elderly woman named Noi said Leo jumped out of her pickup truck back in 2015. She and her husband looked everywhere but couldn't find him. When Noi arrived at the corner to reunite with Leo in 2019, he ran over to her and was greeted with rubs and pets — but he refused to go home with her!
Saowaluck begged Noi to keep the dog herself because she had become so attached to him and had already tried to adopt him once before. Leo has reportedly been with Saowaluck ever since — no longer sad, and no longer waiting.
1. Why did the dog look so sad?| A．He lost touch with his owners. | B．No one gave him food to eat. |
| C．He missed the truck to his home. | D．He disliked being sent to the vet. |
| A．She lost her dog while travelling. | B．She adopted the dog finally. |
| C．She sold the dog to Anuchit. | D．She shared the dog's story online. |
| A．Angry. | B．Proud. |
| C．Nervous. | D．Delighted. |
| A．Advising people to raise dogs properly. |
| B．Telling readers how to take care of dogs. |
| C．Showing us dogs are royal and grateful. |
| D．Encouraging people to adopt deserted dogs. |
【推荐1】Housekeeping Services—They are looking for a responsible,professional,detail-oriented,experienced housekeeper to take care of all cleaning details of a local business in Angwin.This person will be needed approximately 2-3 times per week for about 8 hours per day.Please email them for additional information and be ready to provide resume and work history.Driver’s license required and the ability to lift at least 50 pounds.Pay will be $20-$25 per hour.To contact them,email recruitingangwin@gmail.com.
Caregiver Position—Looking for a caregiver to help with a 91-year-old woman who lives in Calistoga.She speaks both English and Spanish,but Spanish is her preference.She sleeps quite a bit during the day so there is time to do homework.She cannot be left alone because she is a fall risk.She walks with a walker on her own.Please call 9257858500 if interested.
Worship Music Leader—First Presbyterian Church (FPC) in Napa is looking for someone who will select songs and use media for church services on Sundays.Applicants must be able to commit 8-10 hours per week for service and meetings as well as being available every Sunday from 9:00 am to 12:00 pm.The pay is about $18 an hour.Detailed job information will be posted on the Payroll Office’s window.If interested,send your cover letter and resume to David Stoker at david@fpcnapa.org.
Catering Company—Oak Avenue is a premier catering company in St.Helena searching for passionate people to join their talented team of chefs and service professionals.Hours are flexible and can work around students’ schedules.Part-time positions available for aspiring (有抱负的) chefs,bakers,service helpers,and captains.Please send a brief cover letter and resume to Maritza@oakavenuecatering.com or call 7079639278 for more information.
1. To work as a housekeeper,one needs to _________.| A．be qualified to drive |
| B．be a local in Angwin |
| C．work about 8 hours per week |
| D．be able to speak two languages |
| A．The applicant had better speak Spanish. |
| B．The applicant must speak English very well. |
| C．The applicant cannot do homework while on duty. |
| D．The applicant can leave the woman alone occasionally. |
| A．9257858500. |
| B．7079639278. |
| C．David@fpcnapa.org. |
| D．Recruitingangwin@gmail.com. |
【推荐2】Active Challenge
Weight loss camp for girls aged 13-18 in Canada
Active Challenge is a weight loss program specially for young women. The burden of being overweight is heavier than just the extra pounds. We use outdoor adventures to challenge the girls, to give them something to draw strength from.
Because you’ll be losing weight alongside young women just like you, you’ll find no one laughing at you and you’ll help each other. At Active Challenge you’ll make lifelong friends with young women of your own age and learn to love new adventurous activities.
Unlike any other weight loss program, Active Challenge is designed so you’ll lose weight and have the strategies (策略) and skills to keep the weight off forever. Active Challenge does not put you on a diet. We follow the Canada Food Guide to healthy eating and exercise appropriate portion (一份) control. We help you develop healthy habits.
The staff at Active Challenge combine experienced outdoor adventure professionals with highly qualified clinicians. All of us are absolutely devoted to helping you achieve lasting behavioral change and weight loss. Most of all, we are devoted to having a great time doing it.
Pre-Camp: Upon registration (注册) in Active Challenge, a registration package will be
sent out to you with forms to be completed before camping as well as program preparation materials, an introduction to Active Challenge and pre-program personal challenging assignments (任务) to get you on your way toward a healthier self.
Post-Camp: Our post program is designed to keep you focused and remind you of the goals that you set during the camp. After the camp ends we will send you home with your personal meal and exercise plan and keep in touch with you for a full three months through letters, emails and phone calls, tracking your progress and giving you strategies and support.
1. Outdoor adventurous activities are held for girls _____.| A．to follow a good diet |
| B．to lose weight quickly |
| C．to build up their health |
| D．to make them stronger |
| A．Lonely but safe. |
| B．Cold but exciting. |
| C．Friendly and supportive. |
| D．Competitive and challenging. |
| A．should go to buy the program preparation materials |
| B．will be informed how to get prepared for the program |
| C．should learn some skills and strategies to lose weight |
| D．will have to finish some challenging assignments at home |
| A．until the end of November |
| B．until the beginning of the next year |
| C．until girls achieve success in their lives |
| D．until girls can keep their weight off forever |
| A．To explain why Active Challenge is popular. |
| B．To share skills and strategies of losing weight. |
| C．To show how important losing weight is. |
| D．To invite girls to join in Active Challenge. |
【推荐3】Have you ever wondered if you see the same colours as other people? Most people know what blue is when they see it. They call it "blue” because they were taught the word and connected it with what they saw. But how do you know what you see as blue isn't someone else's red?
The ability to perceive （感知）different colours is up to receptors （接受器）in our eyes. Light waves hit these receptors and they react depending on which colour the light is, sending signals to the brain. The brain then reads these signals to determine which colour light the eyes are receiving.
Some people's receptors are more developed than others. The inability of the receptor to feel the light waves correctly means that some people cannot tell the differences between similar colours. Those with more developed receptors can see more colours. We sometimes hear people having an argument about whether something is dark blue or black. It might be because one person has stronger receptors to feel the light than another.
In the past, most scientists would argue that everyone saw colours in the same way. However, research was conducted on monkeys, in which their receptors were changed. This enabled them to see more colours than usual. Normally monkeys can only see blue and green, but the change allowed them to see red. Their brains automatically got used to new colours. This suggests that our brains may find new colors of the things we see. Colours could be a very personal experience , unique to everyone.
So, the next time you talk about your favourite colour, just remember if yours is blue and your friend says red, you two might actually be thinking about the same colour. What if everyone in the world has the same favourite colour, but just calls it different names?
1. What is Paragraph 2 mainly about?| A．How we perceive colours. |
| B．The inability to see colours. |
| C．What the brain does with signals. |
| D．The connection between receptors and light waves. |
| A．Some people cannot feel colours with their developed receptors. |
| B．The more light people feel, the weaker receptors they have. |
| C．People with poor receptors usually have colour weakness. |
| D．People who have strong receptors can see dark blue. |
| A．To test the monkeys with colours. |
| B．To develop the receptors of humans. |
| C．To enable monkeys to find more colors. |
| D．To prove everyone sees colours in a different way. |
| A．A film review. | B．A science magazine. |
| C．An art journal. | D．A business newspaper. |
