题目内容
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.
51. D 52. B 53. D 54. A 55. C
Eating out is more popular in Britain today than it has ever been. It is reported that British people spend more eating out than cooking for themselves and eating at home. It seems that many British people are becoming more and more interested in how good their food tastes, and also how healthy it is.
However, eating out can also be expensive, so British people do not eat out every night. When having a date with friends, or having a birthday, many people like to go to a restaurant, and people often also eat in a restaurant before going to the cinema or the theater.
As in all cultures, there are many rules of manners about eating. The knife and fork should be used in the correct way. It is also impolite to speak with your mouth full when you are eating.
Most British cities have a large collection of food as well as British food, from the very cheap to the very expensive---French, Italian, Indian, Chinese, Thai, Japanese and many, many more.
When people are too tired to cook after work, they often get a “take-away”. This means that they order from a take-out restaurant by telephone, and then go to get it. Many take-out restaurants also send it to your house. All you have to do is to open the door, pay and eat!
【小题1】When do British people often eat in a restaurant?
A.After having a birthday. | B.Before watching a movie. |
C.When they feel tired. | D.If they want to have natural food. |
A.eating out is cheaper than cooking at home |
B.they can learn more manners in the restaurant |
C.people care more about their food than before |
D.people don’t like to stay at home after work |
A.British dishes are very expensive | B.Japanese dishes are most expensive |
C.British people like foreign food | D.French food is most popular |
A.British restaurant culture | B.British table manners |
C.Best restaurants in Britain | D.Best food in Britain |