Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail (桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.
1.Hundreds of years ago, Sir Francis Bacon found _______.
A.the temperature of warm water drops faster than that of cold water
B.warm water is heavier than cold water
C.warm water has the same temperature as cold water
D.warm water is not as useful as cold water
2.Leave a pail with warm water and another pail with cold water in the same low temperature, you’ll find that _______.
A.cold water freezes first
B.warm water turns into ice before cold water
C.warm water and cold water freeze at the same time
D.much of cold water is changed into air.
3.Why does warm water freeze first in the same freezing weather? _______
A.Because some of the warm water turns to vapor, the amount becomes less than that of cold water.
B.Because warm water is lighter than cold water.
C.Because the temperature of warm water is lower than that of cold water.
D.Because cold water freezes with more difficulty than warm water.
高三英语阅读理解中等难度题
Warm water freezes more quickly than cold water. Sir Francis Bacon said that almost four hundred years ago. But few people believed him until 1970. In that year a Canadian scientist George Kill proved the English professor was right. Dr Kill filled an open oil pail (桶) with cold water. He filled another with warm water. He put both in the same low temperature. The warm water froze first. The lack of covers on the pails is the secret. Some of the warm water changed into vapor. This meant that less of the warm water was left to be frozen. And so the warm water froze faster than the cold water even though it had a greater temperature drop to make.
1.Hundreds of years ago, Sir Francis Bacon found _______.
A.the temperature of warm water drops faster than that of cold water
B.warm water is heavier than cold water
C.warm water has the same temperature as cold water
D.warm water is not as useful as cold water
2.Leave a pail with warm water and another pail with cold water in the same low temperature, you’ll find that _______.
A.cold water freezes first
B.warm water turns into ice before cold water
C.warm water and cold water freeze at the same time
D.much of cold water is changed into air.
3.Why does warm water freeze first in the same freezing weather? _______
A.Because some of the warm water turns to vapor, the amount becomes less than that of cold water.
B.Because warm water is lighter than cold water.
C.Because the temperature of warm water is lower than that of cold water.
D.Because cold water freezes with more difficulty than warm water.
高三英语阅读理解中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.What did the man usually have on hot days?
A. Cold water.
B. Warm water.
C. Something other than water.
2.Who used to take the man to get ice cream?
A. His mother. B. His father. C. His grandmother.
高三英语长对话简单题查看答案及解析
Whales, seals and walruses stay warm in cold water because they have a thick layer of blubber. We humans rely on something like blubber—neoprene rubber wet suits—to spend time in cold water. But the thick versions for really icy water are heavy and clumsy. So rather than taking after big marine mammals, what if we could learn from the littler ones, like beavers and otters?
“These animals are quite small and they can’t carry around a thick layer of blubber. So instead they have fur that is evolved to trap air, and this air provides a layer of insulation for them in water.”
Alice Nasto is a graduate student in mechanical engineering at MIT. Scientists have known about this air-trapping insulation mechanism for a long time, but they had not teased out the details of how it works. So Nasto and her colleagues took on the challenge.
“We’re creating these furry samples from these rubbery materials by laser cutting molds and casting these hairy surfaces. And through our approach we can precisely control the spacing of the hairs and the length of the hairs.”
The researchers then created a system to gather data when their pelts (毛皮) entered and moved through a liquid—in this case not water, but silicone oil, which makes it easier to see air bubbles. The key is to keep the pelt’s air layer intact (完好的).
“So when they’re crossing the air water interface, initially their hairy texture is full of air. And then you go into water. How much of the air comes down with you as you’re moving in through the interface. So that’s what this model will tell you.”
They found that the denser the hairs, the more the air gets trapped，which should keep the animal—or potentially the human in a future furry wet suit—warm. The research is in the journal Physical Review Fluids.
“What we would like to work on moving forward is understanding, after you dive into the water, how do you maintain this air layer trapped in your fur. And there’s lots of interesting properties of the fur in nature that we haven’t yet looked at in our model that could help explain how this mechanism might work.”
So for now, cold-water divers and surfers will still emulate seals or sea lions. But the day may come when they’ll more closely resemble otters or beavers.
1.What can make littler mammals keep warm in cold water?
A. An air-trapping insulation mechanism. B. A thick layer of blubber.
C. A fur that is evolved to trap air. D. A neoprene rubber wet suit.
2.Nasto and her colleagues have revealed _______________.
A. the denser the hairs, the more the air can be carried with.
B. the way this air-trapping insulation mechanism works.
C. how the air layer trapped in the fur is maintained in water.
D. the existence of the air-trapping insulation mechanism.
3.The passage is most probably taken from ______________.
A. a newspaper B. a travel book
C. a medical report D. a science magazine
4.What is the best title for the passage?
A. A Fantastic Layer of Fur B. An Important Research
C. A Wonderful Mechanism D. A Graduate’s Challenge
高三英语阅读理解中等难度题查看答案及解析
---- One more question, Sir?
----Wait a minute. I ____ your questions for more than 30 minutes without a break.
Where is my cup?
| A．have been answering | B．have answered |
| C．had answered | D．answered |
高三英语单项填空简单题查看答案及解析
It has been more than twenty years since pioneering British computer programmer, Sir Tim Berners Lee, created the World Wide Web. But could he have ever imagined how much the web would change our lives? And would he approve of how some British students are taking advantage of his invention?
Universities and exam boards around the UK are becoming increasingly concerned with the rising number of cases of plagiarism, many of which are facilitated (助长) by the Internet access.
In the UK most school and university students complete coursework throughout the academic year which contributes toward their final mark. In many cases coursework makes up the main part of the qualification. Since coursework is completed in the students’ own time it cannot be monitored by teachers in the same way as an exam.
Derec Stockley, director of examinations in the UK, explains, “Plagiarism affects coursework more than anything else, and in the cases that come to our attention, more and more are linked to the Internet.”
At a university level recent reports suggest that plagiarism has evolved from separate cases of individual cheating to systematic and even commercial operation. Students can now pay for bespoke essays to be written for them by experts.
It is estimated that the market in online plagiarism is now worth 200 million pounds a year. Every month more and more websites offering to write student’s essays for them appear on the Internet.
Barclay Littlewood, owner of Degree Essays UK employs 3,500 specialist writers and charges between 120 pounds and 4,000 pounds per essay. However, Mr. Littlewood refutes the accusation that he is helping students to cheat.
1.What dose the underlined word “plagiarism” in Paragraph 2 mean in the passage?
A．coursework B．problems of the Internet
C．learning pressure D． cheating
2.Which of the following statements is mentioned by the author?
A．With the help of online plagiarism, students can write more creative coursework.
B．There will be no problem if online plagiarism is a systematic and commercial operation.
C．The Internet seems to have contributed much to the problem of online plagiarism.
D．Teachers should lay more emphasis on exams than coursework.
3.It can be inferred from the text that the author seems to _____ .
A．blame Sir Tim Berners Lee for having created the World Wide Web
B．worry about the quality of students’ coursework influenced by the World Wide Web
C．be in favour of Littlewood’s defence against the accusation of him
D．have studied the problem of online plagiarism for nearly 20 years
4.Who should be blamed for online plagiarism?
A．Barclay Littlewood. B．Sir Tim Berners Lee.
C．Derec Stockley. D．Nobody.
5.The paragraph following the passage will most probably be about_____ .
A．the author’s opinions of Mr. Littlewood
B．different people’s opinions on plagiarism
C．how students use the website of Mr. Littlewood
D．Mr. Littlewood’s defence against those who accused him of his website
高三英语阅读理解中等难度题查看答案及解析
The sixth mass extinction of life on the Earth is unfolding more quickly than feared, scientists have warned. More than 30 percent of animals with a backbone — fish, birds, amphibians, reptiles and mammals — are declining in both range and population, according to the first comprehensive analysis of these trends.
Around a decade ago, experts feared that a new range wipeout of species was appearing. Today, most agree that it is underway — but the new study suggests that the die-out is already growing fast.
The loss of biodiversity has recently accelerated. Several species of mammals that were relatively safe one or two decades ago are now endangered, including cheetahs, lions and giraffes, the study showed.
There is no mystery as to why: our own ever-expanding species — which has more than doubled in number since 1960 to 7.4 billion — is eating, crowding and polluting its planetary cohabitants out of existence. By comparison, there are as few as 20,000 lions left in the wild, less than 7,000 cheetahs, 500 to 1,000 giant pandas.
The main drivers of wildlife decline are habitat loss, over-consumption, pollution, other species, disease, as well as hunting in the case of tigers, elephants, rhinos and other large animals prized for their body parts.
Climate change is thought to become a major threat in the coming decades, with some animals — most famously polar bears — already in decline due to rising temperatures and changing weather patterns.
1.What does the underlined word “accelerated” in Paragraph 3 mean?
A. Made up. B. Put up.
C. Sped up. D. Used up.
2.Why has the loss of biodiversity sped up?
A. The mankind’s population is growing fast.
B. The air pollution is too severe.
C. There are fewer species in larger areas.
D. Man causes wider water pollution.
3.Which is not the main driver of wildlife decline?
A. Outside animals.
B. Loss of living areas.
C. Various illnesses.
D. Lack of water.
4.How is the future of polar bears?
A. Uncertain. B. Hopeful.
C. Doubtful. D. Unsatisfying.
高三英语阅读理解困难题查看答案及解析
Jealous of the kids at school who are smarter than you and seem to learn more quickly? Don’t worry． 71
72 However, according to a recent study, IQ can rise—not just by one or two points, but by as many as 21 points!
Scientists have found that IQ changes are linked to changes in part of the brain called gray matter, which was seen to grow and become denser （更加密集） in the brains of people whose IQs improved greatly．
73 One is to train your short-term memory． Previous research has proven that short-term memory is the basis for intelligence, so trying to recognize or retell something that you have seen or heard can help raise your overall brain power． 74
A good night’s sleep will also help improve your concentration． 75 It helps you stay focused for longer the next day．
Scientists have also found that exercise helps． Walking 30 minutes a day five times a week and doing exercise will help you become more knowledgeable—as well as healthier and fitter．
A． There are several ways of increasing your brain’s gray matter．
B． Your brain deals more efficiently with things you truly like．
C． With a bit of brain training, the chances are that you can be as smart as they are．
D． So maybe it’s a good idea to get your brain in training right away．
E． Getting enough sleep is like pushing the reset button in your brain．
F． The more you work on it, the better you will become．
G． People used to assume that a person’s IQ was unchangeable．
高三英语信息匹配中等难度题查看答案及解析
Binge-watching is when a person watches more than one episode of a show in quick succession(一连串，连续）". With developments in the speed and connectivity of the internet, increases in technology and the rise of on-demand entertainment companies, people can now have their favorite shows streamed directly to their television at their convenience.
This behavior is nothing new. In fact, " binge-watching" has been officially listed in dictionaries since 2015. The entertainment companies recognize this behavior and many take steps to encourage it. Often, instead of releasing each episode on a week-by-week basis, an entire series will become available concurrently. Once the episode finishes many platforms will display pop-ups with “you might like suggestions, or will automatically play the next episode”.
However, recent research suggests that out of the more than half of British adults who watch more than one episode of a show back-to-back, almost a third have admitted missing sleep or becoming tired as a result; and one quarter have neglected their household chores. Next we’ll be missing work!
Bingeing has other connections-binge eating, binge drinking and binge smoking. All of them are often associated with a lack of control and a possible route to addiction. Lindsey Fussell, consumer group director, said: “The days of waiting a week for the next episode are largely gone, with people finding it hard to resist watching multiple episodes around the house or on the move.” If people find binge-watching hard to resist, coupled with the fact that it has shown to lead to negligence in many, are we witnessing the birth of a new type of addiction?
The countless of information and entertainment that television and online media can bring us is, many would say, a good thing. However, when the activity begins to bleed into other areas, causing us to stop functioning then it becomes a problem. So, what's the answer? Moderation! Neither a tiny amount, nor too much. After all, as the old proverb says, “A little of what you fancy does you good.”
1.How did the writer develop the first paragraph?
A. Listing some examples.
B. Telling a story.
C. Giving a definition.
D. Analyzing the cause and effect.
2.Which of the following words can best replace the underlined word in paragraph 2 ?
A. similarly. B. gradually.
C. naturally. D. necessarily.
3.What Lindsey said in Paragraph 4 implies that _____________.
A. people have no patience to do work.
B. people can’t control their movements.
C. people are addicted to watching television.
D. people can’t resist the temptation.
4.What advice did the writer give at last?
A. To watch episodes in a moderate way.
B. To draw life lessons from the episodes.
C. To enjoy entertainment as much as possible.
D. To keep online media from stopping functioning.
高三英语阅读理解困难题查看答案及解析
Jealous of the kids at school who are smarter than you and seem to learn more quickly? Don’t worry． 71
72 However, according to a recent study, IQ can rise—not just by one or two points, but by as many as 21 points!
Scientists have found that IQ changes are linked to changes in part of the brain called gray matter, which was seen to grow and become denser （更加密集） in the brains of people whose IQs improved greatly．
73 One is to train your short-term memory． Previous research has proven that short-term memory is the basis for intelligence, so trying to recognize or retell something that you have seen or heard can help raise your overall brain power． 74
A good night’s sleep will also help improve your concentration． 75 It helps you stay focused for longer the next day．
Scientists have also found that exercise helps． Walking 30 minutes a day five times a week and doing exercise will help you become more knowledgeable—as well as healthier and fitter．
A． There are several ways of increasing your brain’s gray matter．
B． Your brain deals more efficiently with things you truly like．
C． With a bit of brain training, the chances are that you can be as smart as they are．
D． So maybe it’s a good idea to get your brain in training right away．
E． Getting enough sleep is like pushing the reset button in your brain．
F． The more you work on it, the better you will become．
G． People used to assume that a person’s IQ was unchangeable．
高三英语信息配对中等难度题查看答案及解析
--- How do you find this kind of rice?
--- Pretty good, It ______more quickly than that kind.
A. is cooking B. is cooked
C. cooks D. is being cooked
高三英语单项填空中等难度题查看答案及解析