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LONDON: What could possibly be wrong with planting trees? The advantages are obvious; they firm the soil, soak up (摄取) extra water and take carbon dioxide (二氧化碳) out of the atmosphere.
However, it now turns out that planting trees could add to global warming.
Tree roots do a great job of keeping soil firmly on the ground and out of the wind’s power. The problem is that some of those dust clouds play an important part in soaking up carbon dioxide.
Huge dust storms blow out over the oceans from dry parts of North Africa and central Asia. Tons of dust are lifted and left as a thin film over the ocean surface. The dust fuels oceanic life.
Dust from China is carried east and left in the Pacific Ocean. If a tree-planting programme there is successful and the dust supply reduced, the net result may be that less carbon dioxide gets locked away in the ocean.
Andy Ridgwell, an environmental scientist from the University of East Anglia, has spent the past few years studying dust and says his work “shows clearly the complexity of the system and the importance of not tinkering(粗劣地修补) with it without understanding the results. For this reason there is the need to focus(集中) on cutting carbon dioxide giving off rather than monkeying (瞎弄) about with the land surface.”
An American scientist, Robert Jackson, has shown that when native grassland areas are invaded(侵入) by trees, carbon is lost from the soil. “We are studying why the soil carbon disappears, but one theory is that trees do a lot more of their growing above ground compared to grasses, so less carbon goes directly into the soil from trees, ” says Jackson.
In wet areas of the world, the gain from trees absorbing carbon dioxide above ground seems to be outweighed(超过) by the loss of carbon from the soil below ground. Countries that plan to combat global warming by planting trees may have to think again.
Solutions(解决办法) to environmental problems are often more complex than they first appear, and understanding the Earth’s climate is a very great challenge.
60．People usually hold the opinion that________
A．huge dust storms can destroy carbon dioxide
B．huge dust storms can destroy the oceans on the earth
C．huge dust storms can’t do anything beneficial for man
D．planting trees is the only way to control huge dust storms
61．Andy Ridgwell, the environmental scientist, believes that ________ .
A．dust plays a more important part than trees
B．trees shouldn’t have been planted in dry places
C．carbon dioxide is harmful to everything on the earth
D．environmental problems are more complex than expected
62．Robert Jackson’s experiment proves that________ .
A．grassland areas should be covered by forests
B．trees hold more carbon than grass
C．carbon can turn grass into dust
D．less carbon can make trees grow faster
63．The underlined word “combat” in the last paragraph means_______ .
A．learn about B．fight against C．live with D．give up

第三部分:阅读理解 (共两节，满分40分)
第一节（共15小题；每小题2分，满分30分）
When Jackie Robinson walked onto Ebbets Field in Brooklyn, New York, on April 15, 1947, he changed baseball forever. As the first African American to play in the Major League in modern times, many believe he changed the country forever.
Robinson was born in 1919. He lived in a time when rules controlled what African Americans could do. He was a top athlete, playing football, basketball and baseball. But playing for a major League team was off limits to Robinson because of his race.
Branch Rickey, president and manager of the Brooklyn Dodgers, signed (和……签约) Robinson in 1947. He believed that Robinson not only had the skills, but the courage to face the challenge of becoming modern baseball’s first black player.
It wasn’t easy. Robinson sometimes faced boos (嘘声) from fans. But he became a star, anyway. In 1962, he became the first African-American player chosen to enter the Baseball Hall of Fame. In 2005, he was awarded a Congressional Gold Medal, the highest award Congress can give to an American.
By breaking baseball’s color barrier (肤色障碍), Robinson opened the door for many to follow his footsteps, not only in baseball, but in other areas of life as well. After he stopped playing the game, Robinson worked as a manager for a coffee company. He wrote a newspaper column (专栏). He also started a bank.
56. Before Jackie Robinson, no African-American players could __________.
A. play baseball B. play in the Major League
C. play football and basketball D. watch Major League games
57. According to Branch Rickey, Jackie Robinson was __________.
A. poor but clever B. unlucky but confident
C. proud and strong D. brave and skilled
58. We can know that Jackie Robinson’s story __________.
A. changed many Africans’ ideas
B. had an effect on many black people’s lives
C. encouraged black people to fight with whites
D. started a hot discussion about the color barrier
59. Which of the following is NOT what he once did?
A. a newspaper column writer B. a banker
C. a university teacherD. a manager in a company

As we know, most of the material things in our daily life have to be bought with money. But money is not all powerful. Money can't buy many things such as time and true love. There are 24 hours in a day. Sometimes when we are very happy, we wish that the period of happiness would last longer. But no matter what we do, or how much money we are willing to pay, we cannot make a day last longer than 24 hours. On the other hand, when we are unhappy, money cannot make the unhappy time pass away more quickly. True love is another thing which money cannot buy. Suppose we have someone who really loves us very much. Once he dies, he can give us no more love. Can our money raise him from death and make him love us as before? Here we can see very clearly that money cannot buy us love. Money can buy us diamond things, beautiful clothes, but never time and love. So money, after all, is not all powerful.
72. According to the passage, it is quite impossible for you to buy ______.
A. true friendship B. real diamond C. a large house D. an expensive car
73. Which of the sentences expresses the main idea of this passage?
A. Money cannot buy time and love. B. Money is not powerful at all.
C. Money can buy people material things. D. Money doesn't mean everything.
74.Through the passage the writer wants to tell people not to ______.
A. make money B. waste money C. save money D. worship(崇拜) money
75. From the passage we can see that in our life, besides something material, we need something ______.
A. spiritualB. beautiful C. lovely D. useful

There have been many great inventions, which have changed the way we live. The first great invention was one that is still very important today---the wheel. This made it easier to carry heavy things to travel long distances. For hundreds of years after that there were few inventions that have made as much effect as the wheel. There was little unknown land left in the world. People didn't have to explore(开发) much any more. They began to work instead to make life better.
In the second half of the 19th century many great inventions were made. Among them were the camera, the electric light and the radio. These all became a big part of our life today. The first part of the 20th century saw more great inventions. The helicopter in 1909. Sound movies in 1926. The computer in 1928, and jet planes in 1930. This was also a time when a new material was made. Nylon came out in 1935. It changed the kind of clothes people wear. The middle part of the 20th brought new ways to help people get over diseases. They worked very well. They made people healthier and let them live long lives. By the 1960s most people could expect to live to be at least 60. By this time most people had a very good life. Of course new inventions continued to be made. But man now had a wish to explore again. The world is known to man but the stars are not yet. Man began looking for ways to go into space. Russia made the first step. Then the United States took a step. Since then other countries, including China and Japan, have made their steps into space.
68. The first great invention ever known was ______.
A. the camera B. the wheel C. the electric light D. the radio
69. Which of the following was turned out nearly at the same time with the jet plane?
A. The radio. B. The camera.
C. Nylon. D. The helicopter.
70. This passage talks mainly about ______.
A. how inventions affect (影响) people's life B. when electric light was invented
C. which country made the first step into space D. why cars were very important
71. We can safely come to the conclusion that people's life will be made even better through ______.
A. new discoveries B. greater inventions
C. better ways to help people get over diseases D. all of above

More than 10,000 people were made homeless in Ternang when the Sungai Mas overflowed its banks yesterday after six days of continuous heavy rain.
The wooden bridge across the river has been washed away. The town is cut off by flood waters. At the fifth mile, Jalan Tengkn, the water is two meters deep. It is closed to all traffic. Flooding first happened at mid-afternoon yesterday along the river banks. People trying to get to higher ground were just in time to escape the destroying of the flood. Most of the flood victims(受害者) had to leave all their things behind.
The National Flood Relief(救济) Center was reported to give its help and by early evening the whole town was moved out, helped by the army, police, Red Cross Society and volunteers(志愿者).
The flood victims are now housed in different simple relief centers in the nearby town of Ternang. “Everything possible is being done to help the unlucky people,” a government spokesman said, “In fact, money, food and clothing have begun to come in from public organizations and helpful people. A Disaster Relief Fund（救灾基金会） will be started as soon as possible.”
According to the latest reports it is still raining heavily at Ternang. The whole town is expected to be wholly covered by the water. So far no deaths have been reported.
64. This passage is probably taken from ______.
A. a storybook B. a textbook C. a magazine D. a newspaper
65. It seems that the flood happened just because ______.
A. the banks were too low B. the wooden bridge across the river was broken
C. the river was too narrow D. they had had wet days for some time
66. From the passage we know that ______.
A. though the town was flooded, you could still go there by bus
B. as soon as the water flowed over the banks, people began to go to higher lands
C. the government and the whole society are taking great care of the flood victims
D. the flood hasn't brought a large loss to the town as nobody died in the flood
67. What is the best title for this passage?
A. A Big Flood B. Ternang Is in Danger
C. Over 10,000 People Are Homeless D. Great Help Is Needed

A．supermarkets	B．shop assistants
C．shopping carts	D．shop managers