Nowadays, as the society develops, the need of fuel is getting larger and larger. How can we get more and cheaper fuel? One company in New Jersey is developing a special way to get low-cost bio-fuels（生物燃料）from sugar, an importang part for getting ethanol (乙醇).

In order to make bio-fuels cheaper, the company called Proterro, is trying to cut the cost of making sugar. The company is getting photosynthetic microorganisms (光合微生物) to produce large amounts of sugar, and it is designing a special way to grow the microorganisms using small amounts of water.

photosynthetic microorganisms, such as algae（藻类）, are usually thought that it can produce oils. Proterro paid so much attention to making sugar because bio-fuel ethanol is mainly from it, and it’s also the starting point for new ways of making other types of bio-fuels.

Today, almost all of the sugar for bio-fuels is made from corn or sugarcane（甘蔗），and several companies are trying more ways to make sugar from other plants such as grass and trees. “But we’ve just got the beginning to make bio-fuels; sugar is still expensive,”says Kef kasdin, Proterro’s CEO. Only sugar from sugarcane is cheap enough, and that can only be grown inexpensively in some places, such as Brazil.

51. Why do people try to make bio-fuels?

A. The usual fuels are getting more and more.

B. Bio-fuels are more important than the usual fuels.                           

C. The usual fuels are getting cheaper.

D. Bio-fuels are cheaper than the usual fuels.

52. How are people trying to make bio-fuels cheaper?

A. By making more bio-fuels.                       

B. By cutting the cost of making sugar.

C. By getting more photosynthetic microorganisms.

D. By using small amouts of water.

53. Which of the followings might NOT be used to make bio-fuels

A. Wheat                 B.Sugarcane                  C. Corn                        D.Glass

54. How many types of bio-fuels have been made according to the passage?

A. One                    B.Two                         C. Three                       D.Four

55. What do Kef kasdin’s words mean?       .

A.Making bio-fuels has become quite easy.

B. Bio-fuels may be a little more expensive.

C. The company hasn’t cut the cost low enough yet.

D. The company can only get sugar from sugarcane now.

Nowadays, as the society develops, the need of fuel is getting larger and larger. How can we get more and cheaper fuel? One company in New Jersey is developing a special way to get low-cost bio-fuels（生物燃料）from sugar, an importang part for getting ethanol (乙醇).

In order to make bio-fuels cheaper, the company called Proterro, is trying to cut the cost of making sugar. The company is getting photosynthetic microorganisms (光合微生物) to produce large amounts of sugar, and it is designing a special way to grow the microorganisms using small amounts of water.

photosynthetic microorganisms, such as algae（藻类）, are usually thought that it can produce oils. Proterro paid so much attention to making sugar because bio-fuel ethanol is mainly from it, and it’s also the starting point for new ways of making other types of bio-fuels.

Today, almost all of the sugar for bio-fuels is made from corn or sugarcane（甘蔗），and several companies are trying more ways to make sugar from other plants such as grass and trees. “But we’ve just got the beginning to make bio-fuels; sugar is still expensive,”says Kef kasdin, Proterro’s CEO. Only sugar from sugarcane is cheap enough, and that can only be grown inexpensively in some places, such as Brazil.

51. Why do people try to make bio-fuels?

A. The usual fuels are getting more and more.            

B. Bio-fuels are more important than the usual fuels.    

C. The usual fuels are getting cheaper.

D. Bio-fuels are cheaper than the usual fuels.

52. How are people trying to make bio-fuels cheaper?

A. By making more bio-fuels.         

B. By cutting the cost of making sugar.

C. By getting more photosynthetic microorganisms.

D. By using small amouts of water.

53. Which of the followings might NOT be used to make bio-fuels

A. Wheat         B.Sugarcane         C. Corn             D.Glass

54. How many types of bio-fuels have been made according to the passage?

A. One           B.Two               C. Three            D.Four

55. What do Kef kasdin’s words mean?       .

A.Making bio-fuels has become quite easy.

B. Bio-fuels may be a little more expensive.

C. The company hasn’t cut the cost low enough yet.

D. The company can only get sugar from sugarcane now.

Travel in New York

Public transport

      Traffic is quite convenient in New York. The bus is cheap and the subway is common. What’s more, you can take both the bus and the subway with the same transit card. If you have something urgent to do. You’d better take a taxi because that’s fast.

Hotels

      There are a lot of hotels in New York. The Plaza Hotel is the best and the most expensive one. If you want to pay less for your stay, there are many smaller hotels. The YMCA near Central Park is suitable for young people.

Eating out

       Restaurants provide good service in New York. You don’t have to eat at McDonald’s every day and you can try different kinds of food from many countries. You can also enjoy tasty Chinese food in Chinatown.

Shopping

       Shopping in New York is fun. You can see big shops everywhere in this modern city. Stores are open seven days a week, but be careful when you look at the prices because you have to pay taxes on everything you buy. That means you have to pay an extra fee which in New York city is eight percent of the purchase price.

Places to visits

        There are too many places to visit in New York—Times Square, the Empire State Building, and, the Statue of Liberty.

(    )46. If you decide to buy a book ＄10 in New York, you should pay a total of how much after tax?

       A. ＄9.80   B. ＄9.20  C. ＄10.80   D. ＄10.20

(    )47. “The Plaza Hotel” here is the name of a __________

       A. house    B. station     C. city   D. hotel

(    )48. You can eat the delicious Chinese food ____________

       A. at McDonald’s   B. in Piaza   C. in Chinatown.  D. in YMCA   

(    ) 49.Which of the following is NOT in New York?

      A. Central Park.                    B. The Empire State Building.

C. Times Square                         D. The White House.

(    )50. How many types of transportation are mentioned in the passage?

        A. One   B. Two   C. Three   D. Four

阅读下面短文，简要回答所给问题。
The first telephone cards, produced in 1976, were Italian. Five years later the first British card appeared, and now you can buy cards in more than a hundred countries. People usually start collecting cards because they are small and light and you do not need much space for them. It is also a cheap hobby for beginners, although for some people it becomes a serious business. In Paris, for example, there is a market where you can only buy telephone cards, and some cards cost up to ￡4,000. The first Japanese card has a value of about ￡28,000. Most people only see cards with prices like these in their collectors’ magazine.
【小题1】When were the first Italian telephone cards produced?  _________________________________________________
【小题2】How many countries can produce telephone cards now?  _________________________________________________
【小题3】Where can we find a market to buy telephone cards?
_________________________________________________
【小题4】What is the price of the first Japanese telephone card?
_________________________________________________
【小题5】In which magazine do most people see cards with prices?
_________________________________________________