Life in the Clear
Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3,300 feet---as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen, a scientist in biology, says, “These animals live through their life alone. They never touch anything unless they’re eating it, or unless something is eating them.”
And they are as clear as glass. How does an animal become see-through? It s trickier than you might think.
The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter (散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it, so you can see it easily.
But a transparent object doesn’t absorb or scatter light, at least not very much. Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it you see the things behind it.
To become transparent, an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments (色素) that absorb specific colors of light. But a transparent animal doesn’t have pigments, so its tissues won’t absorb light. According to Johnsen, avoiding absorption is actually easy. The real challenge is preventing light from scattering.
Animals are built of many different materials---skin, fat, and more---and light moves through each at a different speed. Every time light moves into a material with a new speed, it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light, it is easier to be see-through. Others build a large, clear mass of non-living jelly-like (果冻状的) material and spread themselves over it.
Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they’re doing it is still unknown. One thing is clear: for these larger animals, staying transparent is an active process. When they die, they turn a non-transparent milky white.
1.According to Paragraph 1,transparent animals .
A. stay in groups B. can be easily damaged
C. appear only in deep ocean D. are beautiful creatures
2.The underlined word “dead” in Paragraph 3 means .
A. silently B. gradually
C. regularly D. completely
3.One way for an animal to become transparent is to .
A. change the direction of light travel B. gather materials to scatter light
C. avoid the absorption of light D. grow bigger to stop light
4.The last paragraph tells us that larger transparent animals .
A. move more slowly in deep water
B. stay see-through even after death
C. produce more tissues for their survival
D. take effective action to reduce light spreading
高三英语阅读理解中等难度题
Life in the Clear
Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3,300 feet---as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen, a scientist in biology, says, “These animals live through their life alone. They never touch anything unless they’re eating it, or unless something is eating them.”
And they are as clear as glass. How does an animal become see-through? It s trickier than you might think.
The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter (散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it, so you can see it easily.
But a transparent object doesn’t absorb or scatter light, at least not very much. Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it you see the things behind it.
To become transparent, an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments (色素) that absorb specific colors of light. But a transparent animal doesn’t have pigments, so its tissues won’t absorb light. According to Johnsen, avoiding absorption is actually easy. The real challenge is preventing light from scattering.
Animals are built of many different materials---skin, fat, and more---and light moves through each at a different speed. Every time light moves into a material with a new speed, it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light, it is easier to be see-through. Others build a large, clear mass of non-living jelly-like (果冻状的) material and spread themselves over it.
Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they’re doing it is still unknown. One thing is clear: for these larger animals, staying transparent is an active process. When they die, they turn a non-transparent milky white.
1.According to Paragraph 1,transparent animals .
A. stay in groups B. can be easily damaged
C. appear only in deep ocean D. are beautiful creatures
2.The underlined word “dead” in Paragraph 3 means .
A. silently B. gradually
C. regularly D. completely
3.One way for an animal to become transparent is to .
A. change the direction of light travel B. gather materials to scatter light
C. avoid the absorption of light D. grow bigger to stop light
4.The last paragraph tells us that larger transparent animals .
A. move more slowly in deep water
B. stay see-through even after death
C. produce more tissues for their survival
D. take effective action to reduce light spreading
高三英语阅读理解中等难度题查看答案及解析
Life in the Clear
Transparent animals let light pass through their bodies the same way light passes through a window. These animals typically live between the surface of the ocean and a depth of about 3,300 feet---as far as most light can reach. Most of them are extremely delicate and can be damaged by a simple touch. Sonke Johnsen, a scientist in biology, says, “These animals live through their life alone. They never touch anything unless they’re eating it, or unless something is eating them.”
And they are as clear as glass. How does an animal become see-through? It s trickier than you might think.
The objects around you are visible because they interact with light. Light typically travels in a straight line. But some materials slow and scatter (散射) light, bouncing it away from its original path. Others absorb light, stopping it dead in its tracks. Both scattering and absorption make an object look different from other objects around it, so you can see it easily.
But a transparent object doesn’t absorb or scatter light, at least not very much. Light can pass through it without bending or stopping. That means a transparent object doesn’t look very different from the surrounding air or water. You don’t see it you see the things behind it.
To become transparent, an animal needs to keep its body from absorbing or scattering light. Living materials can stop light because they contain pigments (色素) that absorb specific colors of light. But a transparent animal doesn’t have pigments, so its tissues won’t absorb light. According to Johnsen, avoiding absorption is actually easy. The real challenge is preventing light from scattering.
Animals are built of many different materials---skin, fat, and more---and light moves through each at a different speed. Every time light moves into a material with a new speed, it bends and scatters. Transparent animals use different tricks to fight scattering. Some animals are simply very small or extremely flat. Without much tissue to scatter light, it is easier to be see-through. Others build a large, clear mass of non-living jelly-like (果冻状的) material and spread themselves over it.
Larger transparent animals have the biggest challenge, because they have to make all the different tissues in their bodies slow down light exactly as much as water does. They need to look uniform. But how they’re doing it is still unknown. One thing is clear: for these larger animals, staying transparent is an active process. When they die, they turn a non-transparent milky white.
1.According to Paragraph 1,transparent animals .
A. stay in groups B. can be easily damaged
C. appear only in deep ocean D. are beautiful creatures
2.The underlined word “dead” in Paragraph 3 means .
A. silently B. gradually
C. regularly D. completely
3.One way for an animal to become transparent is to .
A. change the direction of light travel B. gather materials to scatter light
C. avoid the absorption of light D. grow bigger to stop light
4.The last paragraph tells us that larger transparent animals .
A. move more slowly in deep water
B. stay see-through even after death
C. produce more tissues for their survival
D. take effective action to reduce light spreading
高三英语阅读理解中等难度题查看答案及解析
My wife passed away a few years ago, and I went through the worst time in my life. I even wanted to kill myself. Just for kids, I had to continue to live and work as small-town doctor at my medical clinic in Hawaii. My kids had gone to live on the mainland, and I was alone. Then they asked me to have a family trip.
On our trip, we turned on the TV at the motel and saw the second plane crash into the World Trade Center. Seeing it falling down, I said to my kids: “I’m going to Afghanistan”. And a few weeks later, international Medical Corps sent me to set up 20 clinics in provinces where people had no health care. In these field clinics surrounded by frightening shoots or deadly bombs, we were eventually serving 27,000 patients a month in a very busy schedule. Tired and nervous, I gradually had a sense of achievement, a sense of purpose, and my depression went away.
In the years to follow, I went to Indonesia after the tsunami, Pakistan after the earthquakes, Sudan after the civil warm and Iraq after more and more bombs. Each time after disasters one after another, hundreds of people were killed, wounded and many more had to flee. We once set up movable clinics in an area with 19,000 refugees, and it was supposed to hold 13,000 originally. Flu broke out, one of the biggest killers of kids in refugee camps, and it spread like wildfire. Water and food were also serious problems. “Adventures or not?” I often asked myself.
When my wife passed away, I thought my life was done. But in reality, it was just getting started. At the end of her life, she went unconscious. I held her head in my hands and told her of all the places we would visit and the exciting adventures we would have.
I think about the moment many times during my “adventures”. I didn’t know how predictive those words would be. But I know that she is still with me.
1.Where has the doctor been in the past few years?
A. Some countries where he could set up clinics.
B. Some African countries where flu broke out.
C. The places where the earthquakes happened.
D. The places that the horrible disasters struck.
2.How would the doctor describe his life after he had worked in Afghanistan?
A. Tired and troublesome.
B. Busy and risky.
C. Meaningful and helpful
D. Frightening and depressing.
3.The underlined word “refugees” means people_______________.
A. who are robbed, killed, or wounded
B. who suffer from flu in movable clinics
C. who like to take adventures
D. who have lost homes because of disasters.
4.Which of the following is TRUE according to the passage?
A. the doctor’s wife encouraged him to work in foreign countries.
B. What the doctor said to his wife before her death became reality.
C. The doctor’s adventures made him understand the love of his wife.
D. With the true love of his wife, the doctor started to change his life.
高三英语阅读理解中等难度题查看答案及解析
During the expedition in the mountains we passed through a place where in a little while we all lost out ______ of direction.
A. sense B. feeling
C. idea D. ability
高三英语单项填空中等难度题查看答案及解析
During the expedition in the mountains we passed through a place where in a little while we all lost out ______ of direction.
A.sense B.feeling C.idea D.ability
高三英语单项填空简单题查看答案及解析
Some of the best cycling routes in the world pass through its most beautiful scenery. Here are some of world’s best bike routes for cyclists who either are up for breaking a good sweat or simply seeing the world without leaving an ugly carbon footprint behind.
The Great Windy Road, Victoria, Australia
If you like a challenge, take on this 243-kilometer windy road along Australia’s south-eastern coast. If a day is all you’ve got, take the 60-kilometer route from Torquay to Bells Beach. There you’ll cycle through rural farmland, enjoy the sweeping ocean views from cliff tops, and snake past the wetlands around Lake Connewarre.
Udaipur City Tour, Rajasthan, India
Biking is arguably the best way to explore Udaipur, Venice of the East.
Cyclists often need to cycle past herdsmen and their goats and camels, sharing narrow, old pavements in this romantic place. But surrounded by ancient castles, temples and grand palaces, Udaipur brings about one of the best biking experiences, allowing cyclists to truly discover rural India.
The Karakoram Highway, China-Pakistan
The Karakoram Highway is the highest international road in the world, reaching an altitude of 4,700 meters at the Khunjerab Pass. Starting in Kashgar, China, cyclists can travel up to 1,200 kilometers on mostly unpaved roads, but the views are as breathtaking as the riding.
Route of the Hiawatha, Idaho-Montana, United States
Take your family out to Montana this summer and cycle along the most scenic disused railroad in the country. The railroad turned bike trail turns into 24 kilometers of leisure biking that takes you over seven trestles(高架桥) and through 10 tunnels, with the longest one, the Taft Tunnel, stretching for 2.7 kilometers.
1.In which tour can you enjoy the seaside scenery?
A.The Great Windy Road. B.Udaipr City Tour.
C.The Karakoram Highway. D.Route of the Hiawatha.
2.What can you do on the Udaipur city tour?
A.Go to Venice. B.Feed wild animals.
C.Visit cultural relics. D.Enjoy modern architectures.
3.What’s special about the Karakoram Highway?
A.It is a totally undeveloped route. B.It goes along an abandoned railway.
C.It owns the longest tunnel in the world. D.It lies higher than other international roads.
高三英语阅读理解中等难度题查看答案及解析
E
Windows not only let light in to cut down an electricity use for lighting, but the light coming through the window also provides heat. However, windows are not something people typically associate with being a cutting edge technology. Researchers are now working on new technologies that enable a window to quickly change from clear to dark and anywhere in between with a turn of a switch.
“It took us a long time to figure out what a window really is,” says Claes Granqvist, a professor of solid—state physics at Uppsala University in Sweden.“It’s contact with the outside world. You have to have visual contact with the surrounding world to feel well.” So, windows and natural light are important for improving the way people feel when they’re stuck indoors.
Yet, windows are the weak link in a building when it comes to energy and temperature control. In the winter, cold air leaks in. When it’s hot and sunny, sunlight streams in. All of this sunlight carries lots of heat and energy. And all of this extra heat forces people to turn on their air conditioners. Producing cold air, which can feel so refreshing, actually suck up enormous amounts of electricity in buildings around the world.
Windows have been a major focus of energy research for a long time. Over the years, scientists have come up with a variety of strategies for coating, glazing, and layering windows to make them more energy efficient. Smart windows go a step further. They use some technologies involving changes of color.
Electrochromic windows use electricity to change color. For example, a sheet of glass coated with thin layers(层) of tungsten oxide(氧化钨) works a bit like a battery. Tungsten oxide is clear when an electric charge is applied and dark when the charge is removed, that is, when the amount of voltage(电压) is decreased, the window darkens until it’s completely dark after all electricity is taken away. So applying a voltage determines whether the window looks clear or dark.
One important feature that makes a smart window so smart is that it has a sort of “memory”. All it takes is a small shock of voltage to turn the window from one state to the other. Then, it stays that way. Transitions take from 10 seconds to a few minutes, depending on the size of the window. The development of smart windows could mean that massive air conditioning systems may no longer need.“In the future,” Granqvist says,“our buildings may look different.”
67.Which statement does not indicate the importance of windows as described in the first two paragraphs?
A.Windows can change from clear to dark to save energy.
B.Windows help to save energy by letting light in.
C.Windows help to save energy by providing heat.
D.Windows enable people to have contact with the outside world.
68.According to the passage, smart windows are windows_______.
A.that are coated B.that use electricity
C.the color of which can be changed D.that have many layers
69.To make electrochromic windows change color, what is applied to the window glass?
A.Electricity. B.Tungsten oxide. C.A battery. D.A voltage.
70.What will be the benefit if the research on smart windows turns out to be successful?
A.The buildings will look different.
B.Windows can be as large as you want.
C.We may not need air conditioners any more.
D.They are less expensive than traditional windows.
高三英语阅读理解简单题查看答案及解析
When I was a child growing up in Ohio, the butterflies would sometimes pass through on their way to Mexico. And it was awesome to see football fields full of them — and I wanted to revisit that on a larger scale. I knew I had to go to see the migration in Mexico.
But I was on a budget. I didn’t want to rent a car in Mexico or take a bus to Valle de Bravo, the starting point for most butterfly adventures, so I called the guys at the Muddy Boot, travel experts in Mexico who can make almost anything happen at a reasonable rate.
And so, on January 2, I found myself in the Muddy Boot van (货车), being driven two hours from Mexico City to Valle de Bravo, a lovely town on a volcanic lake which is a central point for the butterfly journeys. I booked a two-night stay at the Hotel Rodavento, an all eco-friendly hotel with individual wooden houses spread throughout the forest and around a lake.
The first sanctuary (保护区) I visited was Piedra Herrada, a popular destination, as it is only 40 minutes away from Valle de Bravo. The climb up is tiring. It is advisable to hire a horse. But the horse cannot take you all the way, and there is some hiking in thin air, so you must be patient, drink a lot of water, and be in reasonably good shape.
The walk is more than worth it, though. As I struggled to catch my breath, I looked up and lost my breath again. At first glance, the trees had turned into different shapes, but on closer inspection, every inch of them was covered with butterflies.
A few flew through the air (Most of them were not warm enough). As the sun rose, they began to come alive. Soon the air was filled with flying butterflies, transforming the forest into something magical and straight out of a fairy tale.
1.Why did the author choose to take the Muddy Boot van?
A.She couldn’t afford to rent a car.
B.She preferred to travel alone.
C.She wanted to save some money.
D.She hoped to reach the destination earlier.
2.What can we learn about Piedra Herrada?
A.It is at a high altitude. B.It is far from Valle de Bravo.
C.It is full of wild animals. D.It is only accessible by riding a horse.
3.What made the author’s hiking worthwhile?
A.Becoming healthier. B.Breathing in fresh air.
C.Finding trees of different shapes. D.Seeing the butterfly migration.
4.What type of writing is the text?
A.A news report. B.A scientific paper. C.A travel diary. D.A commercial ad.
高三英语阅读理解中等难度题查看答案及解析
The building has windows with a coating that ______ heat while letting in light.
A.blocks B.blinds C.brakes D.breaks
高三英语单项填空简单题查看答案及解析
The policeman told me that I had passed the driving test and never in my life _______ so happy and excited.
A. I felt B. did I feel C. I had felt D. had I felt
高三英语单项填空简单题查看答案及解析