C
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.

Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find paper cups or toilet soap, and keep a record of the bill.
The touch-screen devices are on show at the Food Marketing Institute’s exhibition here this week, “These devices are able to create value and get you around the store quicker,” said Michael Alexander, manager of Springboard Retail Networks Inc., which makes a smart cart computer called the Concierge.
Canadian stores will test the Concierge in July. A similar device, IBM’s “Shopping Buddy”, has recently been test-marketed at Stop & Shop stores in Massachusetts.
Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf.
“The whole model is driven by advertisers’ need to get in front of shoppers,” said Alexander. “They’re not watching 30-second TV ads anymore.”
People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system（系统）that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.
The device also keeps a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay.
The new computerized shopping assistants don’t come cheap. The Buddy devices will cost the average store about $ 160, 000, and the Concierge will cost stores about $ 500 for each device.
【小题1】The underlined word “they”（paragraph 1）refers to ____________.

A．intelligent shopping carts cost a large sum of money

B．the Concierge is cheaper than the Buddy devices

C．shop assistants with computer knowledge are well paid

D．average stores prefer the Concierge to the Buddy devices

In the United States you will find yourself being urged from every page of every newspaper and every television station to buy all kinds of goods.

Not only is there a wide range of prices for goods in America, there is also a wide range in the quality of goods offered for sale. Unlike some countries, Americans generally pay the price of a product without question, instead of trying to get a lower price by bargaining. However, there are many “sales” in the United States, during which time stores will lower their normal prices. This may all be very confusing to visitors. How are you going to know how to “get your money’s worth” when you shop? Perhaps the best advice is: Don’t hurry. Visit various stores and determine the quality of goods. Read the advertisements so that you can compare prices.

There is a great variety of shops in the United States, ranging from very large stores called “department stores” to very small shops. There are “discount houses” offering goods at low prices, and “dime stores” specializing in a wide range of inexpensive items.

Most department stores in large cities carry better quality products at higher prices. However, they offer the shoppers great convenience since they contain such a wide variety of products.

If convenience isn’t as important to you as price, you may want to shop in discount houses. These stores have nearly as great a variety of goods as department stores, but offer lower prices. They can do so for several reasons. They don’t offer the same services to buyers that department stores do; there may be fewer sales people; and the store probably doesn’t deliver purchases.

Another popular shop is the “dime store”. No longer selling many things for five or ten cents, these stores got their name in the last century when it was decided that a small profit on a great quantity of goods would be better than a large profit on fewer sales. Dime stores specialize in a wide variety of inexpensive items and today, prices range from a quarter or 50 cents up to several dollars.

1.Where can we most probably read this passage?

A. In a research paper.       B. In a science report.

C. In a geography book.      D. In a travel magazine.

2.Why can discount houses offer goods at lower prices compared with department stores?

a. They have fewer employees.

b. They have larger quantities of goods.

c. They offer fewer services.

d. They don’t provide delivery service.

A. a b c    B. a b d   C. a c d    D. b c d

3.What’s special about dime stores?

A. They sell lots of goods at a small profit.

B. They make big profits by selling some goods.

C. They provide goods with a price lower than 50 cents.

D. They provide goods ranging from bargains to expensive ones.

.

Supermarkets are trying out new computers that make shopping carts more intelligent. They will help shoppers find paper cups or toilet soap, and keep a record of the bill.

The touch-screen devices are on show at the Food Marketing Institute’s exhibition here this week, “These devices are able to create value and get you around the store quicker,” said Michael Alexander, manager of Springboard Retail Networks Inc., which makes a smart cart computer called the Concierge.

Canadian stores will test the Concierge in July. A similar device, IBM’s “Shopping Buddy”, has recently been test-marketed at Stop & Shop stores in Massachusetts.

Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf.

    “The whole model is driven by advertisers’ need to get in front of shoppers,” said Alexander. “They’re not watching 30-second TV ads anymore.”

    People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system（系统）that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.

    The device also keeps a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay.

The new computerized shopping assistants don’t come cheap. The Buddy devices will cost the average store about $ 160, 000, and the Concierge will cost stores about $ 500 for each device.

1.The underlined word “they”（paragraph 1）refers to ____________.

A. supermarkets                B. shop assistants

C. shopping carts               D. shop managers

2.We can learn from the last paragraph that ___________.

A. intelligent shopping carts cost a large sum of money

B. the Concierge is cheaper than the Buddy devices

C. shop assistants with computer knowledge are well paid

D. average stores prefer the Concierge to the Buddy devices

3.What might be the most suitable title for the text?

A. New age for supermarkets                   

B. Concierge and Shopping Buddy

C. New computers make shopping carts smarter 

D. Touch-screen devices make shopping enjoyable

B
Supermarkets are trying out new computers that make shopping carts more intelligent（具备智能的）. They will help shoppers find paper cups or toilet soap, and keep a record of the bill.
The touch-screen devices（触摸屏装置）are on show at the Food Marketing Institute’s exhibition here this week. “These devices are able to create value and get you around the store quicker,” said Michael Alexander, manager of Springboard Retail Networks Inc., which makes a smart cart computer called the Concierge.
Canadian stores will test the Concierge in July. A similar device, IBM’s “Shopping Buddy”, has recently been test-marketed at Stop & Shop stores in Massachusetts.
Neither device tells you how many fat grams or calories are in your cart, but they will flash you with items on sale. The idea is to make it easier for people to buy, not to have second thoughts that maybe you should put something back on the shelf.
“The whole model is driven by advertisers’ need to get in front of shoppers,” said Alexander. “They’re not watching 30-second TV ads anymore.”
People can use a home computer to make their shopping lists. Once at the store, a shopper can use a preferred customer card to start a system（系统）that will organize the trip around the store. If you’re looking for toothpicks, you type in the word or pick it from a list, and a map will appear on the screen showing where you are and where you can find them.
The device also keeps a record of what you buy. When you’re finished, the device figures out your bill. Then you go to the checker or place your card into a self-checkout stand and pay.
The new computerized shopping assistants don’t come cheap. The Buddy devices will cost the average store about $ 160,000, and the Concierge will cost stores about $ 500 for each device.
59. The underlined word “They”（paragraph 1）refers to ______.
A. supermarkets  B. shop assistants   C. shopping carts   D. shop managers
60. Which of the following is the correct order of shopping with computerized shopping carts?
a. Start the system.                                    b. Make a shopping list.
c. Find the things you want.                       d. Go to a self-checkout stand.
A. abdc                 B. bacd                        C. acbd                        D. bcad
61. We can learn from the last paragraph that ______.
A. intelligent shopping carts cost a large sum of money
B. the Concierge is cheaper than the Buddy devices
C. shop assistants with computer knowledge are well paid
D. average stores prefer the Concierge to the Buddy devices
62. What might be the most suitable title for the text?
A. New age for supermarkets.
B. Concierge and Shopping Buddy.
C. New computers make shopping carts smarter.
D. Touch-screen devices make shopping enjoyable.