题目内容
Invented in Turkey and patented by Nanopool, a German company, the spray-on liquid glass might become one of the most useful inventions in the field of nanotechnology. The product was tested at the Saarbrücken Institute for New Materials.
It is worth mentioning that the invention is transparent and non-poisonous. The liquid glass can protect any type of surface from damages caused by water, UV radiation, dirt, heat, and bacterial infections. Besides, it is flexible and breathable, which means that the liquid glass can be applied on plants and seeds as well. Researchers found that the spray greatly increases the resistance of plants to bacteria-caused diseases. The trials also showed that the sprayed seeds grew faster.
Depending on the type of surface that is to be covered, researchers can add water or ethanol to the spray. Scientists say that their latest invention has a long-lasting anti-bacterial effect. The spray produces a coating that is just 100nm thick. Trials by food processing plants in Germany have concluded that foods covered with the glass can store longer than those stored in normal condition.
According to Neil McClelland, UK project manager with Nanopool, due to its capabilities, the spray-on liquid glass can become one of the most useful inventions around the world, ending up being used by a lot of industries that will cover their products. At present, the invention is being used by a train company and a hotel chain in the UK, as well as a hamburger chain in Germany that are carrying out tests of the liquid glass for various uses.
The spray-on liquid glass was also tested in a Lancashire hospital, where it showed “very promising” results, being used to cover medical equipment and bandages. The invention could be also used on clothing, because it cannot be seen by the naked eye, thus clothes could become stain resistant. Due to its unique characteristics, the liquid glass can be used to cover bathrooms, sinks and many other surfaces in the home. According to the researchers, the spay-on glass can last for a year. It is expected to hit the DIY stores across Britain at a price of 5 pounds.
51. Which of the following about the liquid glass is NOT true?
A. We can still see an object clearly covered with the liquid.
B. It will cause plants to have some kind of disease.
C. Plants still have access to oxygen when covered by it.
D. It can speed up the growth of seeds.
52. What does the underlined sentence in Paragraph 3 imply?
A. Water or ethanol must be added to the spray to produce the effect.
B. The coating of the spray-on liquid is thick.
C. The liquid glass can protect foods from bacteria.
D. The long-lasting anti-bacterial effect protects the liquid glass.
53. According to Neil McClelland, the spray-on liquid glass_________.
A. are being tested by some industries
B. are being used by various companies
C. can be eaten together with hamburgers
D. are widely used by train companies
54. The writer’s attitude towards the application of the new liquid glass is _________.
A. pessimistic B. doubtful C. cautious D. optimistic
55. What can be inferred from the passage?
A. We don’t have to wash our clothes with the new invention.
B. The liquid glass can be used to wash yourself in the bathroom..
C. The liquid glass will be widely used in many fields.
D. The DIY stores will not welcome the liquid glass.
51. B 52. C 53. A 54. D 55. C
My bookshelves are full of dust — and with good reason. When it comes to cleaning that part of my home, I suffer from the most serious case of avoidance (回避反应症).
The thing is this: when I do set out to clean and re-organize my books, which seldom happens, I place myself into a really bad situation. No sooner do I take a title from the shelf, blow off the dust, and wipe down the cover than I find myself sitting on the floor with legs crossed and my back against the wall. Pretty soon books get piled up on my legs as I am reunited with old friends.
It is as if these books have voices, and each wants to say its piece. “Remember me? I was given to you when you went into the Navy, so that you would never lack for companionship,” one whispers. Another says, “I was your first book of poems, given to you before you learned to love poetry.” And a third, “I was the book that made history so attractive to you.”
Perhaps the greatest pleasure of re-organizing my books are the surprises — or better said, reunions — that occur. During my latest book-cleaning adventure, I found one that had fallen behind the shelf: “Tales of Edgar Allan Poe.” Not an unusual title, but the words written on the first page made it very special: “With Love from Mom and Dad, Christmas 1965.” What’s this? A book on the physics of lasers（激光）. It is filled with mathematical statements, and I had bought it at a library sale when I was 12, not long after the laser had been invented. I couldn’t understand a bit of it, but I did learn what “laser” meant.
What I end up with when I empty my bookshelves is a cross-section (横剖面) of my personal history. It’s like a road cut where one sees all the layers of rock going back through time to the beginning of the simplest life forms. The books I’ve read — and kept — are not just old friends. They are my résumé.
【小题1】What could be said about the author?
| A．He is too busy to tidy up his bookshelves. |
| B．He considers his books treasured possessions. |
| C．He has made a lot of notes in his books. |
| D．He is a lover of science books. |
| A．they bring back happy memories |
| B．they are recorded in human voice |
| C．they say a lot about human history |
| D．they offer good topics for discussion |
| A．Finding some missing books. |
| B．Putting books in good order. |
| C．Learning something new from the books. |
| D．Rediscovering interesting stories behind some books. |
| A．personal history | B．precious notes | C．good companion | D．simple life forms |