下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在其下面加上该加的词。

删除：把多余的词用斜线（﹨）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1.每处错误及其修改均仅限一词；

      2. 只允许修改10处，多者（从第11处起）不计分。

In early 1800’s a new kind of power changed transportation and trade along the Mississippi River. This power was a steam. People already knew that how to use steam engines to run machines. Some people wanted to move boats by the same way. The first steamboats to travel on the Mississippi was the “New Orleans”, which made its first trip in 1811. It was a great successful, and by 1819 there were 191 steamboats travel on the long river. In the past, the farmers products went to other parts of the country used steamboats. The manufacturers whose trade depend on cheap and easy transportation used steamboats so well.

B
London Underground
The world’s first subway was built in London in 1863. At the time, the government was looking for a way to reduce traffic problems in the city of London. The poor areas of the city were so crowded with people that it was almost impossible for horse carriages to get through. The city officials were interested in trying to make it possible for workers to live outside of London and travel easily to work each day. If people had a cheap and convenient way that they could depend on to go to and from work, they would relocate their homes outside of the city. This would help ease(减轻) the pressure of too many people living in the poor parts of London. From these problems, the idea of the London Underground, the first subway system was born.
The plans for building the Underground met with several problems and delays, but the fast track was finally opened in January 1863. A steam train pulled the cars along the fast underground track which was 6 kilometers (3. 7 miles) long. About 30,000 people got on the subway the first day. Riders were treated to comfortable seats (standing up while the train was moving was not allowed), and pleasant decorations inside each of the cars. However, the smoke from the engine soon filled the air in the tunnels with ash and soot(煤灰), as well as chemical gases. Fans had to be put in the tunnels later to keep the air clean enough for people to breathe. Even with its problems, riding in the Underground did catch on. It carried 9 million riders in its first year.
50. What led the British government to build the London Underground？
A. Traffic jams and pollution.         B. Population and pollution.
C. Overcrowding and traffic jams.     D. The poverty and subway problems. 
51. How did the London Underground solve the smoke problem？
A. It made the tunnels larger.
B. It put fans in the tunnels.
C. It cleaned the chemical gases in the tunnels. 
D. It reduced the number of passengers riding in the train.
52. The underlined phrase “catch on” most probably means “______”.
A. be troublesome              B. become popular and fashionable
C. keep up with                D. seize
53. Which of the following is TRUE？
A. To relocate the workers’ homes outside London，the government built the subway.
B. There were so many problems and delays that in 18th century the first subway opened.
C. The subway greatly eased the pressure of traffic.
D. There were not enough seats for the passengers the first day the subway opened.

A solar pump(太阳能水泵 ) was built in a desert small village. The pump used the deserts most common resource – sunlight, to increase its greatest need, water. Solar collectors were used to collect the sun’s rays. Flat collectors were used instead of concave (凹的) collectors. Flat collectors can be still and do not have moving parts, which can be broken in sandstorms. The system used the 20C temperature difference between the solar collectors and the ground water to work a steam engine which pumped water from under the ground.

Some of the social effects of the new pump were planed for. Children aged 6—15 used to meet the old men to receive the informal education there. In order to replace this, a school was also included in the project. But the project had not considered the traditional power structure of the village. As soon as the foreign experts left, the two richest men in the village took control of the pump and started selling water to everyone else. The result was that the majority of the people were poorer than before.

16. The basic function of the solar collectors is to ______

        A. pump water           B. gather the sun’s rays 

        C. start engine            D. raise the temperature

17. According to the passage which of the following statements could be true?

        A. Solar collectors were concave collectors                      

    B. Flat collectors can be broken in sandstorms.

        C. Concave collectors may be have moving parts.        

    D. A solar pump is a solar collectors.

18. The underground water is pumped by means of ______.

        A. solar collectors    B. the 20C temperature difference          C. the system  D. a steam engine

19. Another plan was also included that_____.

        A. some new pumps were to built ,too

        B. children from aged 6—15 were required to meet old men.

        C. a new school would take the place of the informal education.

        D. the richest men in the village would control the pump.

20. From this passage , it can be inferred that_____.

        A. the project was good , but people there disliked it.

        B. only few rich men supported the project.

        C. the project was successful even though it only brought good social effects to fewer villagers.

        D. the project was a complete failure, because the result was against its purpose.

E

City officials are hoping to use the power of dog droppings. San Franciscans already recycle more than 60% of their dogs’ droppings, but in this dog-friendly town, such wastes make up nearly 4% of residential waste, or 6,500 tons a year.

Within the next few months, Norcal Waste, a company that collects San Francisco’s wastes, will begin a trial program under which it uses biodegradable (生物分解的) bags and dog-waste carts to pick up droppings at a popular dog park.

The droppings will be thrown into a machine called a methane digester (沼气处理机), which is basically a tank in which bacteria feed on droppings for weeks to create methane gas.

The methane could then be piped directly to a gas stove, a steam heater, an air turbine or anything else powered by natural gas. It can also be used to produce electricity.

Someone doubts whether this plan is practical. But Norcal Waste spokesman, Robert Reed points to San Francisco’s creative food composting (混合肥料) program, which began 10 years ago. It is a proof that an unusual idea can work in this forward-thinking city. Norcal Waste collects 300 tons of food left over after meals per day from homes and restaurants and changes it into a rich fertilizer sold to grape farms and organic farms.

Methane digesters are nothing new. The technology was introduced in Europe about 20 years ago, and more than 600 farm-based digesters are in operation there. Nine are in use on California cow farms, and chicken and pig farms elsewhere in the United States also use them.

“The main obstacle is probably getting communities around the country the courage to collect dog droppings, to give value to something we’d rather not talk about,” Brinton, a recycling and composting consultant, said. “San Francisco is probably the king of pet cities. This could be an advantage of it, which is very important.”

Some other experts believe energy production from dog droppings must become more attractive economically before it gets popular. Landfill space is relatively cheap, and natural gas and electricity also remain fairly inexpensive. However, Reed said confidently, “Now, the city authorities asked us to look at dog waste specifically.”

61. How many dogs’ droppings can be recycled at present per year in San Francisco?

A. About 6,500 tons.                    B. About 169,000 tons.

C. About 260 tons.                          D. About 3,900 tons.

62. It can be inferred from the passage that        .

A. there are many pets that are treated well in San Francisco

B. Norcal Waste is a company of refuse (垃圾) treatment, which collects dog wastes only

C. most of the farms in Europe use Methane digesters

D. Brinton doesn’t feel optimistic about the collection of dog droppings in San Francisco

63. The underlined word “obstacle” in Paragraph 7 most probably means        .

A. interest         B. effect         C. difficulty       D. purpose

64. Which of the following is TRUE according to the passage?

A. San Francisco is a city full of innovation.

B. Dog droppings can be changed into methane gas in several days.

C. It is the first time to utilize animal waste in San Francisco.

D. Utilizing dog droppings presently is more economical than the landfill.

65. Which of the following can be the best title of this passage?

A. Animal wastes collection by Norcal Waste

B. Changing dog droppings into energy

C. Methane digester technology in San Francisco

D. A dog droppings composting program

下面短文中有10处语言错误。请在有错误的地方增加、删除或修改某个单词。

增加：在缺词处加一个漏字符号（∧），并在其下面加上该加的词。

删除：把多余的词用斜线（﹨）划掉。

修改：在错的词下划一横线，并在该词下面写上修改后的词。

注意：1.每处错误及其修改均仅限一词；

2. 只允许修改10处，多者（从第11处起）不计分。

In early 1800’s a new kind of power changed transportation and trade along the Mississippi River. This power was a steam. People already knew that how to use steam engines to run machines. Some people wanted to move boats by the same way. The first steamboats to travel on the Mississippi was the “New Orleans”, which made its first trip in 1811. It was a great successful, and by 1819 there were 191 steamboats travel on the long river. In the past, the farmers products went to other parts of the country used steamboats. The manufacturers whose trade depend on cheap and easy transportation used steamboats so well.