Wood has many great characteristics that make...

Wood has many great characteristics that make it the perfect building material. It is cheap, durable(耐用的), easily available, and most importantly, environmentally sustainable. The one thing it is not, is transparent(透明的).Now thanks to a team of scientists at Stockholm’s KTH Royal Institute of Technology, the material may even be able to add that feature to its already impressive list.

Lead researcher Dr. Lars Berglund said he was inspired to create the transparent wood after learning how Japanese researchers had developed a see-through paper for use in flexible display screens for electronic devices.

The team began by pulling out the wood’s lignin (木质素). The lignin-free wood was then dipped into a polymer (聚合物) and baked at a temperature of 158F for four hours. The result was a hybrid product that was not only stronger and lighter than the original wood but also, almost transparent. The researchers were able to adjust the level of transparency by varying the amount of the polymer injected and also by changing the thickness of the wood.

While scientists have previously created a see-through wood for small-scale applications like computer chips, the transparent wood is the first one being considered for large scale applications. The researchers, who revealed their findings in Biomacromolecules on April 11, picture using the transparent wood in buildings to allow for more natural light, or to create windows that let in the desired amount of light without sacrificing privacy.

Wood that allows light to pass through could lead to a brighter future for homes and buildings. Berglund also thinks the wood could play a significant role in the design of solar panels. The semi-transparent material would be able to keep light longer and give it more time to interact with the conductor, thus resulting in better solar efficiency.

Additionally, substituting the currently used glass with this new product would help solar energy manufacturers improve their carbon footprint and lower the cost. They are now experimenting with ways to scale up the manufacturing process so that the transparent material is cost-effective to make and easy to use.

1.What does the underlined part "that feature" in Paragraph 1 refer to?

A.Cheapness. B.Durability.

C.Sustainability. D.Transparency.

2.Which of the following is not the process in which the transparent wood is made?

A.Dip the wood into a polymer. B.Reduce the amount of the polymer.

C.Make the wood lignin-free. D.Bake the wood for some time.

3.What’s the purpose of using the transparent wood in buildings?

A.To protect privacy. B.To scale out applications.

C.To get more natural light. D.To observe more clearly.

4.What is the last paragraph mainly about?

A.The bright future of the transparent wood.

B.The wood’s role in the design of solar panels.

C.The disadvantages of the currently used glass.

D.Solar energy manufacturers’ carbon footprint.

高三英语阅读理解中等难度题查看答案及解析

Wood has many great characteristics that make it the perfect building material.It is cheap，durable，easily available，and most importantly，environmentally sustainable.The one thing it is not，is transparent! Now thanks to a team of scientists at Stockholm’s KTH Royal Institute of Technology the material may even be able to add that feature to its already impressive list.

Lead researcher Dr，Lars Berglund said he was inspired to create the transparent wood after learning how Japanese researchers had developed　 a　 see-through paper for use in flexible display screens for electronic devices.The team began by pulling out the wood’s lignin(木质素).The lignin-free wood was then dipped into a polymer(聚合物)and baked at a temperature of 158°F for four hours.The result was a hybrid product that was not only stronger and lighter than the original wood but also，almost transparent.The researchers were able to adjust the level of transparency by varying the amount of the polymer injected and also by changing the thickness of the wood.

While scientists have previously created a see-through wood for small-scale applications like computer chips，the transparent wood is the first one being considered for large scale applications.The researchers，who revealed their findings in Biomacromolecules on April 11，picture using the transparent wood in buildings to allow for more natural light，or to create windows that let in the desired amount of light without sacrificing privacy.

Wood that allows light to pass through could lead to a brighter future for homes and buildings.Berglund also thinks the wood could play a significant role in the design of solar panels.The semitransparent material would be able to keep light longer and give it more time to interact with the conductor，thus resulting in better solar efficiency.Additionally，substituting the currently used glass with this new product would help solar energy manufacturers improve their carbon footprint and lower the cost.They are now experimenting with ways to scale up the manufacturing process so that the transparent material is cost-effective to make and easy to use.

1.What does the underlined part“that feature”in Paragraph 1 refer to?

A. Cheap.　　 B. Durable.　　 C. Sustainable.　　 D. Transparent.

2.Which of the following correctly shows the process in which the transparent wood is made?

①Dip the wood into a polymer.　　　 ②Adjust the amount of the polymer.

③Make the wood lignin-free.　　　 ④Bake the wood for some time.

A. ③→①→④→②　　 B. ③→①→②→④

C. ①→②→③→④　　 D. ④→③→②→①

3.Which of the following is true according to the text?

A. Berglund got the idea of transparent wood while making paper.

B. Varying the amount of the polymer changes the wood’s hardness.

C. The transparent wood would be used only for homes and buildings.

D. The cost of making the transparent wood still needs to be cut down.

4.What is the last paragraph mainly about?

A. The bright future of the transparent wood.

B. The wood’s role in the design of solar panels.

C. The disadvantages of the currently used glass.

D. Solar energy manufacturers’carbon footprint.

高三英语阅读理解中等难度题查看答案及解析

One of the characteristics that make me different from many people is my adaptability—I'm _______ and comfortable in new or unusual situations.

A. acceptable    B. respectable  C. reliable D. flexible

高三英语单项填空简单题查看答案及解析

One of the characteristics that make me different from many people is my adaptability-I'm_______　 and comfortable in new or unusual situations.

A. acceptable　　 B. respectable　　 C. reliable　　 D. flexible

高三英语单项填空中等难度题查看答案及解析

It's certainly hard work.But,________a man who wishes to have a career has to make a great many sacrifices.

高三英语单项填空中等难度题查看答案及解析

82. Recently CCTV station has taken great _____ to make a program that reviews the important ______ of the past 20 years.

高三英语单项填空简单题查看答案及解析

Many of us would agree that improving the countryside through technology has great potentials ______ food development in China.

A. in terms of　　　　　 B. regardless of

C. in spite of　 　　　 D. on account of

高三英语单项填空中等难度题查看答案及解析

What does the man think of the jacket?

A. It has too many pockets.

B. It's great for everyday use.

C. It is suitable for outdoor activities.

高三英语短对话简单题查看答案及解析

Over the last 25 years, British society has changed a great deal or at least many parts of it have. In some ways, however, very little has changed, particularly where attitudes are concerned. Ideas about social class --- whether a person is “working class” or “middle class” are one area in which changes have been extremely slow.

In the past, the working class tended to be paid less than middle-class people, such as teachers and doctors. As a result of this and also of the fact that workers’ jobs were generally much less secure, evident differences in lifestyles and attitudes came into existence. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her “housekeeping”, would go out and squander (挥霍) the rest on beer and betting.

The stereotype (模式化的思想) of what a middle-class man did with his money was perhaps nearer the truth. He was --- and still is --- tended to take a longer-term view. Not only did he regard buying a house as a most important thing , but he also considered the education of his children as extremely important. Both of these provided him and his family with security. Only in very few cases did workers have the opportunity ( or the education and training ) to make such long-term plans.

Nowadays, a great deal has changed. In a large number of cases factory workers earn as much, if not more, than their middle-class administrators. Social security and laws have made it less necessary than before to worry about “tomorrow”. Working class people seem slowly to be losing the feeling of inferiority（自卑） they had in the past. In fact there has been a growing tendency in the past few years for the middle classes to feel slightly ashamed of their position.

The changes in both lifestyles and attitudes are probably most easily seen among younger people. They generally tend to share very similar tastes in music and clothes; they spend their money in having a good time, and save for holidays or longer-term plans when necessary. There seems to be much less difference than in precious generations. Nevertheless, we still have a wide gap between the well-paid (whatever the type of job they may have) and the low-paid. As long as this gap exists, there will always be a possibility that new conflicts and jealousies will arise, or rather that the old conflicts will re-appear, but between different groups.

1.According to the passage, which of the following is not a typical feature of the middle class?

A. Desiring for security.

B. Making long-term plans.

C. Having vision for the future.

D. Saving money.

2.The author seems to suggest that the description of ________________ is closer to truth.

A. middle-class ways of spending money

B. working class ways of spending the weekend

C. working class drinking habits

D. middle-class attitudes

3.Working class people’s sense of security increased as a result of all the following factors except _______________.

A. better social security　　 B. more administration

C. higher self-confidence　　 D. less income inequality

4.Which of the following statements is incorrect?

A. Changes are slowly taking place in all sectors of the British society.

B. The gap between working class and middle class young people is narrowing.

C. Difference in income will remain but those in occupation will disappear.

D. Middle-class people may sometimes feel inferior to working class people.

高三英语阅读理解困难题查看答案及解析

Over the last 25 years, British society has changed a great deal – or at least many parts of it have. 1.　 . Ideas about social class – whether a person is “working - class” or “middle - class” – are one area in which changes have been extremely slow.

In the past, the working-class tended to be paid less than middle-class people. The typical working man would collect his wages on Friday evening and then, it was widely believed, having given his wife her "housekeeping", would go out and squander the rest on beer and betting.

The old style of what a middle-class man did with his money was perhaps nearer the truth. He was-and still is - inclined to take a longer-term view. Not only did he regard buying a house as a most important thing, but he also considered the education of his children as extremely important. 　　 2.　　 . Only in very few cases did workers have the opportunity （or the education and training） to make such long-term plans.

3.　 . In a large number of cases factory workers earn as much as their middle – class supervisors (管理者). Social security and laws to improve century, have made it less necessary than before to worry about "tomorrow". Working-class people seem slowly to be losing the feeling of inferiority(自卑感). In fact there has been a growing tendency in the past few years for the middle-classes to feel slightly ashamed of their position.

4.　　 .They generally tend to share very similar tastes in music and clothes, they spend their money in having a good time, and save for holidays or longer-term plans when necessary. There seems to be much less difference than in precious generations. 　　 5.　 . As long as this gap exists, there will always be a possibility that new conflicts and jealousies will emerge, or rather that the old conflicts will re-appear, but between different groups.

A．Nowadays, a great deal has changed

B．Both of these provided him and his family with security

C．As a result, differences in life – styles and attitudes came into existence

D．However, we still have a wide gap between the well – paid and the low - paid

E．In recent years, the working – class people have begun to design long – term plans

F．In some ways, however, very little has changed, particularly where attitudes are concerned

G．The changes in both life – styles and attitudes are probably most easily seen among younger people

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