Floating on the surface of the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They move about lazily with the currents, providing a basic food for many larger animals. Plankton has been described as the equivalent (相等的东西) of the grasses that grow on dry land, and the comparison is an appropriate one. In potential food value, however, plankton far outweighs that of land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates(碳水化合物) each year, the sea’s plankton produces more than twice as much.
Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now scientists have at last begun to study this possibility, especially as the sea’s resources appear even more important as a means of feeding an expanding world population.
No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among scientists.
One type of plankton that seems to have great harvest possibilities is a tiny creature called krill(磷虾). Growing to two or three inches long, krill are a major food source for the giant blue whale, the largest animal ever to live on the Earth. Realizing that this whale may grow 100 feet and weigh about 150 tons, it is not surprising that each one swallows more than one ton of krill daily.
Krill swim about just below the surface in huge schools sometimes wide, mainly in the cold Antarctic. Because of their pink color, they often appear as an entire reddish mass when viewed from a ship or from the air. Krill are very high in food value. If krill can feed such huge creatures as whales, many scientists reason, they must certainly be competitors among possible new food sources for humans.
1.Which of the following correctly describes plankton?
A. It has a higher food value than grasses. B. It is food for most small sea animals.
C. It can grow on dry land as well. D. It grows up in the deep water.
2.Why does the author mention”planktonburgers” in Paragraph 3?
A. To show scientists’ interest in plankton.
B. To describe the appearance of plankton.
C. To question the food potential of plankton.
D. To suggest plankton as a possible food source.
3.According to Paragraph 4, the blue whale___________.
A. feeds mainly on krill. B. can grow up to 150 feet.
C. suffers from lack of food. D. was born two or three inches long.
4.Which of the following is TURE about krill?
A. They mainly live in the Arcitc. B. They are of great value to humans.
C. They are the smallest sea animals. D. They come in many different colors.
高二英语阅读理解简单题
Floating on the surface of the seas of the world are billions of tons of small plants and animals called plankton. Most of these plants and animals are too small for the human eye to see. They move about lazily with the currents, providing a basic food for many larger animals. Plankton has been described as the equivalent (相等的东西) of the grasses that grow on dry land, and the comparison is an appropriate one. In potential food value, however, plankton far outweighs that of land grasses. One scientist has estimated that while grasses of the world produce about 49 billion tons of valuable carbohydrates(碳水化合物) each year, the sea’s plankton produces more than twice as much.
Despite its enormous food potential, little effort was made until recently to farm plankton as we farm grasses on land. Now scientists have at last begun to study this possibility, especially as the sea’s resources appear even more important as a means of feeding an expanding world population.
No one yet has seriously suggested that “planktonburgers” may soon become popular around the world. As a possible farmed supplementary food source, however, plankton is gaining considerable interest among scientists.
One type of plankton that seems to have great harvest possibilities is a tiny creature called krill(磷虾). Growing to two or three inches long, krill are a major food source for the giant blue whale, the largest animal ever to live on the Earth. Realizing that this whale may grow 100 feet and weigh about 150 tons, it is not surprising that each one swallows more than one ton of krill daily.
Krill swim about just below the surface in huge schools sometimes wide, mainly in the cold Antarctic. Because of their pink color, they often appear as an entire reddish mass when viewed from a ship or from the air. Krill are very high in food value. If krill can feed such huge creatures as whales, many scientists reason, they must certainly be competitors among possible new food sources for humans.
1.Which of the following correctly describes plankton?
A. It has a higher food value than grasses. B. It is food for most small sea animals.
C. It can grow on dry land as well. D. It grows up in the deep water.
2.Why does the author mention”planktonburgers” in Paragraph 3?
A. To show scientists’ interest in plankton.
B. To describe the appearance of plankton.
C. To question the food potential of plankton.
D. To suggest plankton as a possible food source.
3.According to Paragraph 4, the blue whale___________.
A. feeds mainly on krill. B. can grow up to 150 feet.
C. suffers from lack of food. D. was born two or three inches long.
4.Which of the following is TURE about krill?
A. They mainly live in the Arcitc. B. They are of great value to humans.
C. They are the smallest sea animals. D. They come in many different colors.
高二英语阅读理解简单题查看答案及解析
阅读理解D
The deserts of the world are not all covered with sand. Many of them have surfaces of rock or clay(黏土) or small stones. They are not flat, either. They often have high hills and deep valleys. There is some plants’ life in many parts of the desert. There is little rain in the desert, but it does fall often enough for most plants.
The deserts of the world are not uninhabited(无人居住的). People also live outside oases(绿洲), but these people are not farmers. They have camels, goats, donkeys, sheep, etc. These animals can live on the desert plants and do not need much water.
The people of the desert have to move constantly from place to place, they must always look for grass or desert plants for their animals. They usually live in tents. When there is no more food for their animals, they fold up their tents, put them on their camels and donkeys, and move to another place. In good years, when there is enough food for their animals, they trade their skins and their goats and camel hairs with the people of oases for wheat and fruit. But in bad years, when there is not enough food for their animals, the people of the desert would attack the oases people. But they are also hospitable, no man in the desert would ever refuse to give a stranger food and water.
【小题１】According to the passage, deserts are mostly made up of ________.
A. clay B. rock C. stones D. sand
【小题１】The underlined word “hospitable” has the meaning of being ________.
A. kind B. brave C. cruel D. strange
【小题１】 In the desert ________.
A. It rains in spring only. B. it rains for a short time every month
C. the rainfall is just enough for the plants
D. there is some rain, but far from enough
【小题１】People live ______.
A. only inside the oases B. both inside and outside the oases
C. only outside the oases D. in places with regular rainfalls.
高二英语阅读理解简单题查看答案及解析
The Art of Conversing
In a world of 6. 5 billion opinionated people，arguments are sure to happen. 1. But arguments can often lead to positive change—if you argue correctly.
Argue well
2. In a healthy argument，one’s own goal should be to make the problems clear, to communicate the upset behind the problems，and to really move toward a solution. The minimum goal should be to preserve (维护) the relationship well enough to keep communication alive.
What not to do
Nothing kills a healthy argument like a personal attack，and personal attacks are a big no－no if you want an argument to end positively. For example，while I was making a public speech，someone interrupted(打断) and then corrected me. 3. I completely lost my temper (脾气)，attacking that person directly and personally. Clearly I shouldn’t have done that.
Don’t be afraid of the heat
It’s true that personal problems must be left at the door. 4. Conflict (冲突) is acceptable in an argument as long as you stick to the subject. Attacking the other person is not useful. That kind of argument closes down the willingness on both sides to keep talking.
5. If you do find yourself in the thick of one，listening with an open mind can bring about a quick end to the argument and perhaps a positive solution.
A. I later ended up in an argument.
B. Many people see arguments as a bad part of life.
C. Learning how to voice a different opinion works.
D. Unpleasant arguments are just around the corner.
E. But that doesn’t mean arguments won’t get heated.
F. There certainly is such a thing as a “healthy argument”.
G. By actively listening，many arguments can be avoided.
高二英语七选五中等难度题查看答案及解析
Scientists used to explore探测on the surface of the ocean. Now they are exploring below the surface, too. They want to know about ocean water and the plant and animal life deep in the ocean.
In 1934 the scientist William Beebe dived 3 000 feet below the surface in a hollow steel ball. In 1935 August Piccard dived 10330 feet. In 1960 his son Jean dived to a depth of 35 800 feet. All these early dives were deep. But the divers could not stay down for very long. They had to come back up to the surface after a few seconds. Scientists needed to stay down longer to study life below surface. Gradually they succeeded. Cousteau, a Frenchman, was able to keep men down to a depth of 90 feet for a week.
Now scientists are developing even better equipment. With this new equipment，men can stay below the surface for days or even weeks. In 1962 Cousteau set up a research station 35 feet below the surface. Then，in 1964，he set up another station on the ocean floor of the Red Sea. This was the first undersea station to operate without help from the surface.
Many countries are now studying undersea living. The former Soviet Union has an undersea laboratory in the Crimean Sea. The United States has a laboratory 50 feet down on the ocean floor off the Virgin Islands. In 1970 five men lived there for two weeks. Then a team of five women scientists stayed in the laboratory. Next came other teams of men. All were there to explore the ocean depths and to make plans for the use of its resources. Scientists hope to find enough mineral，vegetable，and animal wealth there to provide food for the entire world.
1.In order to______ ，scientists are exploring below the surface of the ocean.
A. know about the ocean water deep in the ocean
B. stay down longer to study life of the plant and animal below the surface
C. know about the plant and animal life deep in the ocean
D. both A and C
2.Who made the deepest dive______
A. William Beebe.
B. August Piccard.
C. Jean Piccard.
D. Cousteau.
3.Which of the following statements is true____
A. The early divers could not stay down for very long.
B. Up to now only five women scientists have stayed in the undersea laboratory.
C. The purpose of setting up the undersea laboratories is to make plans for the use of the resources in the ocean.
D. None of the above is true.
高二英语阅读理解中等难度题查看答案及解析
More than 2.25 billion cups of coffee are drunk throughout the world each day, and it's likely that many taste bitter. Now, a new study suggests that coffee fans can make their drink sweeter by changing the color of their cups.
Researchers from Oxford set out to prove whether the claim that coffee drunk from a white cup tastes biter was true. They used 36 volunteers and three different colored cups---blue, white and transparent glass--- to examine the claim.
In one experiment, the white cup increased the intensity (浓度) of the coffee taste relative to the transparent cup. Then, in a second experiment, coffee drunk from the white cup was found to taste less sweet when compared to the other colored cups, while the blue cup made the coffee taste the sweetest.
The scientists believe that the color brown may be associated with bitterness, and coffee in a white cup appears the brownest. “Our study clearly shows that the color of a cup does influence our sense of the coffee taste,” leading author Dr George Doorn, wrote in an article for The Conversation. “The effect of the color of the cup on the taste of the coffee reported here suggests that cafe owners should carefully consider the color of their cups,” he said. “The potential effects may spell the difference between a one-time purchase and a return customer.” Actually, the idea that color can change the food and drink taste came out many years ago. A study published last year reported that red, strawberry-flavored cake served on a white plate was rated as 10 percent sweeter than the same food presented on a black plate.
1.The passage is mainly about _____.
A. the popularity of sweet coffee.
B. an experiment made in Oxford.
C. the effect of cup color on coffee's taste
D. useful tips on how to make coffee.
2. In which cup will coffee taste the sweetest?
A. A white cup. B. A blue cup.
C. A transparent cup D. A brown cup
3. Café owners should consider their cups' color in order to ______.
A. reduce the daily expenses
B. show their taste in coffee
C. appeal to more customers
D. make their café different.
4.We learn from the passage that_____.
A. coffee in a white cup tastes sweeter than that in a transparent glass
B. over 2 billion cups of sweet coffee are drunk worldwide each year.
C. Dr. George Doorn wrote an article about making conversations.
D. the idea that color could affect the taste of drink is not new.
高二英语阅读理解中等难度题查看答案及解析
More than 2.25 billion cups of coffee are drunk throughout the world each day, and it’s likely that many taste bitter. Now, a new study suggests that coffee fans can make their drink sweeter by changing the color of their cups.
Researchers from Oxford set out to prove whether the claim that coffee drunk from a white cup tastes bitter was true. They used 36 volunteers and three different colored cups---blue, white and transparent(透明的) glass--- to examine the claim.
In one experiment, the white cup increased the intensity (浓度) of the coffee taste relative to the transparent cup. Then, in a second experiment, coffee drunk from the white cup was found to taste less sweet when compared to the other colored cups, while the blue cup made the coffee taste the sweetest.
The scientists believe that the color brown may be associated with bitterness, and coffee in a white cup appears the brownest. “Our study clearly shows that the color of a cup does influence our sense of the coffee taste,” leading author Dr George Doorn, wrote in an article for The Conversation. “The effect of the color of the cup on the taste of the coffee reported here suggests that cafe owners should carefully consider the color of their cups,”he said,“The potential effects may spell the difference between a one-time purchase and a return customer.” Actually, the idea that color can change the food and drink taste came out many years ago. A study published last year reported that red, strawberry-flavored cake served on a white plate was rated as 10 percent sweeter than the same food presented on a black plate.
1.The passage is mainly about _____.
A. the popularity of sweet coffee.
B. an experiment made in Oxford.
C. the effect of cup color on coffee’s taste
D. useful tips on how to make coffee.
2.In which cup will coffee taste the sweetest
A. A white cup B. A blue cup
C. A transparent cup D. A brown cup
3.Café owners should consider their cups’ color in order to ______.
A. reduce the daily expenses
B. show their taste in coffee
C. appeal to more customers
D. make their café different.
4.We learn from the passage that_____.
A. coffee in a white cup tastes sweeter than that in a transparent glass
B. over 2 billion cups of sweet coffee are drunk worldwide each year.
C. Dr. George Doorn wrote an article about making conversations.
D. the idea that color could affect the taste of drink is not new.
高二英语阅读理解中等难度题查看答案及解析
The ocean is always moving：waves break on the surface, sea levels rise and fall with the tides, and currents flow below the surface. Although it looks as if the water in a wave is moving across the surface of the ocean, it is not. The water is actually moving up and down. This is why an object on top of a wave will bob up and down, but not move forward.
When a wave reaches the shore, however, the water does move forward. It surges(前进 )onto the shore. This is because the “bottom” of the wave drags on the sand and the “top” continues on, crashing onto the shore. This crashing water is called the surf. Most waves are caused by wind blowing across the ocean's surface. The size of a wave depends on how fast and how far the wind blows over the surface and on the depth of the wave. Small winds can cause ripples, while strong winds create large hurricane waves.
Along most shorelines. water levels rise and fall twice a day. These changes, called tides. are caused by the gravitational pull of the Sun and the Moon. The ocean surface lifts, or bulges(凸出), in two places: on the side of Earth that faces the Moon and on the side of Earth that faces away from the Moon. Both bulges cause a high tide on nearby shorelines. At the same time that the high tides occur, low tides occur between the two bulges.
Tides are also affected by the pull of the Sun, although the effect of the Sun is not as great as the effect of the Moon. When the Moon and Sun are lined up with Earth, the combined pull is the strongest, causing the highest high tides and the lowest low tides. These very high and very low tides are called spring tides. Weaker tides, called neap tides, happen when the Moon and the Sun are at right angles to Earth. High tides alternate with low tides. Along most shorelines, a high tide or low tide occurs about every six hours.
1.The word “alternate” in the last paragraph means .
A. appear suddenly
B. bob up and down
C. change or become quickly
D. happen or follow one after another
2.The best title for the passage is .
A. The Moving Ocean B. Tides and Waves
C. Ocean and Earth D. Waves and Currents
高二英语听力第三部分中等难度题查看答案及解析
When baby turtles first come out of eggs, they head to the sea by nature. The beach surface goes down, which is one directional clue they follow. Another is light: The horizon (地平线) over the sea is brighter than the horizon over land.
But lights from towns and beach developments can confuse the baby turtles. The sky shining above a city can mislead them to wander. And particularly bright lights can draw them away from the sea.
You’d think the extra time crawling (爬行) might wear out baby turtles, which need energy once they get in the water to swim for about a day to get to their destination in the sea. In a normal trip from nests to waves, the babies build up chemicals that show they have been pushing themselves.
Some researchers took the baby turtles to a lab, where they ran on a treadmill and swam in a tank while their blood and breathing were monitored. The finding is surprising: even after hours of crawling, the turtles were fine by all measures and swam as well as turtles that didn't have an extra crawling period.
The reason is that they often stop while crawling if they are doing U for a long time, unlike the disturbed trip they make when heading straight to the water. So misled turtles are not worn out.
But the misleading lights are still a problem for the babies. The longer they spend on the beach wandering, the more they are exposed to natural enemies. They can also end up losing their lives in the heat of the sun.
1.What attracts the baby turtles away from the sea?
A.Bright lights. B.Vast beaches.
C.Buildings in cities. D.Noises from towns.
2.What does the underlined word “they” refer to in paragraph 3?
A.Chemicals. B.Nests.
C.Waves. D.Baby turtles.
3.Why don’t the baby turtles feel exhausted after long crawling?
A.They travel by night. B.Their trip is undisturbed.
C.They take frequent breaks. D.They are refreshed by city lights.
4.What may happen to the baby turtles exposed to misleading lights?
A.They are in great danger.
B.They avoid their natural enemies.
C.They will wander on the beach for a while.
D.They are more likely to find the destination.
高二英语阅读理解中等难度题查看答案及解析
American Watersports
Tuesday--Saturday
Located on the beach of the Sea Gardens Beach Resort, there are fun things to rent for the whole family. They offer rentals for kayaks, jetskis, and even parasails! Enjoy the water upclose or from a bird's eye view! No matter what activity you're enjoying, be sure to protect yourself and your family from the sun's powerful rays and apply plenty of sun block!
15th Street Boat Company
Monday --Saturday
15th Street Boat Company offers rental boats of all kinds. They're sure to have what you are looking for, whether it's a small boat for a quick and simple outing or an extravagent boat with comfortable seats with a stereo(立体声) and high tech navigation(导航). You can rent a boat for half a day, a couple days, or even weeks at a time. If you want it, they've got it. It's fun for everyone!
Coconut's Watersports
9 a.m.-5 p.m. Monday through Sunday
Coconuts Water Sports is open 7 days a week for your convenience and offers tons of water fun for the whole family. Jet ski activities last 30 minutes or 1 hour and can make stops along the way. You must be at least 14 years of age to ride alone and can be as young as 3 to ride along with an adult. Everybody is required to wear a life jacket and a license is required to operate the jet ski. Bathing suits and shorts are recommended.
Jet Ski Tours of Miami
Thursday-Sunday 10 a.m.-7p.m.
Jet Ski Tours of Miami includes onsite parking, indoor restrooms, lockers, and life jackets for participants. You may choose a one or two hour tour and each jet ski can hold up to 3 people. You must be at least 18 years old in order to ride. As long as you are accompanied by an adult, there is no age limitation for any passenger. There is a restaurant nearby to eat at. The tour visits 6 different islands and passes by Bayside and Hard Rock. You may even catch a glimpse of dolphins playing or a manatee resting in these fabulous Florida waters.
1.What activity is convenient for the visitors to have lunch?
A. Jet Ski Tours of Miami B. Coconut's Watersports
C.15th Street Boat Company D. American Watersports
2.To satisfy your son’s curiosity about marine animals, you ___________.
A. will rent a boat to ride with him.
B. prefer an extravagant (奢侈的) boat with comfortable seats with a stereo.
C. would like to prefer American Watersports to Florida waters.
D. can choose the tour to Bayside and Hard Rock.
3. If you like to sail a boat, you can________.
A. go to the Sea Gardens Beach Resort B. visit 15th Street Boat Company
C. choose Jet Ski Tours of Miami D. go to Coconut’s Watersports
4.To ride alone in the jet ski activities, _____________.
A. you have to be at least 14 years old. B. you can choose to wear a life jacket or not.
C. you must be over18 years old. D. you have to be with parents.
高二英语阅读理解中等难度题查看答案及解析
American Watersports Tuesday-Saturday
Located on the beach of the Sea Gardens Beach Resort, there are fun things to rent for the whole family. They offer rentals for kayaks, jet skis, and even parasail! Enjoy the water up-close or from a bird’s eye view! No matter what activity you’re enjoying, be sure to protect yourself and your family from the sun’s powerful rays and apply plenty of sun block!
15th Street Boat Company Monday-Saturday
15th Street Boat Company offers rental boats of all kinds. They’re sure to have what you are looking for, whether it’s a small boat for a quick and simple outing or an extravagant boat with comfortable seats with a stereo and high tech navigation. You can rent a boat for half a day or a couple of days, or even weeks at a time. If you want it, they’ve got it. It’s fun for everyone!
Coconut’s Watersports 9am-5pm Monday through Sunday
Coconut’s Watersports is open 7 days a week for your convenience and offers tons of water fun for the whole family. Jet Ski activities last 30 minutes or 1 hour and can make stops along the way. You must be at least 14 years of age to ride alone and can be as young as 3 to ride along with an adult. Everybody is required to wear a life jacket and a license is required to operate the Jet Ski. Bathing suits and shorts are recommended.
Jet Ski Tours of Miami Thursday-Sunday 10am-7pm
Jet Ski Tours of Miami includes onsite parking, indoor restrooms, lockers, and life jackets for participants. You may choose a one or two tour and each Jet Ski can hold up to 3 people. You must be at least 18 years old in order to ride. As long as you are accompanied by an adult, there is no age limitation for any passenger. There is a restaurant nearby to eat at. The tour visits 6 different islands and passes by Bayside and Hard Rock. You may even catch a glimpse of dolphins or a manatee resting in these fabulous Florida waters.
1.Which of the following can help you enjoy sailing a boat?
A. Choose Jet Ski Tours of Miami. B. Go to the Sea Gardens Beach Resort.
C. Visit 15th Street Boat Company. D. Visit Coconut’s Watersports.
2.What’s a necessary requirement to ride alone in the Jet Ski activities?
A. One must stay with parents. B. One must be at least 14 years old.
C. One apply plenty of sun block. D. One must wear bathing suits and shorts.
3.What will you do to satisfy your son’s curiosity about marine(海洋的) animals?
A. You prefer the tour to Bayside and Hard Rock.
B. You prefer a luxury boat with comfortable seats with a stereo.
C. You’d like to choose American Watersports.
D. You would like to rent a boat to ride with him.
高二英语阅读理解中等难度题查看答案及解析