Read the following article and select the best answer. Article: Pupils work harder in lessons if they are taught by a man, a study has claimed. Male teachers are more likely to improve pupils' self-esteem and are judged by pupils to be more fair, according to a study published by the Department for Education. But there is a significant shortage of male teachers, especially in primary schools, with reports last month indicating that almost one in three primaries has an all-female teaching staff. The latest figures heightened fears that schools are becoming dominated by women and children are being denied access to male role models in the classroom. Researchers at the London School of Economics and Westminster University conducted an experiment in which each of 1,200 pupils in 29 schools was given PS2. They could use the money to "buy" up to 10 questions at a cost of 20p each, which they then had to answer. If they were right they were given an extra 20p, but if they were wrong they lost 20p. Boys and girls who had a male teacher chose on average almost half a question more than those taught by women, indicating that they had a more positive outlook on the rewards of effort, the the study said. Researchers wrote: "One of the most significant results featured in this experiment is the positive effect of male teachers on effort. The experiment suggests that higher ability pupils either believed that the teacher would reward them more favorably or had a preference for working hard to please the teacher." According to the Good Teacher Training Guide, 86 per cent of new teachers entering primary schools are female, along with 62 per cent of those entering secondary schools. Professor Alan Smithers, of Buckingham University, said: "This is an interesting and somewhat surprising finding, but it does underline the importance of having a good mix of male and female teachers in classes." Question: What is the author's attitude to the finding that pupils work harder in lessons if they are taught by a man? - He is for the finding. - He is against the finding. - He doesn't show his opinion about it. - He thinks it's interesting and somewhat surprising.
He doesn't show his opinion about it.

Read the following article and select the best answer. Article: People are talking about the "new economy." It's very different from the "old economy". In the old economy, people travel to walk. They buy things in stores. They use the post office, the fax and the telephone to send information. They see people face-to-face at their jobs or in stores. People get information from newspapers, radio, television, books and libraries. In the new economy, people do business through the "net," which is a connection of millions of computers everywhere in the world. In the new economy, workers often work at home. They can get information online. They can communicate with employers and co-workers by e-mail. Businesses have "virtual stores". They are websites on which customers can see the products. Businesses can sell to customers anywhere in the world. In the new economy, people live a fast paced, convenient and colorful life. The whole world develops more quickly than before. But the new economy is a double-edge sword. Its disadvantage is also obvious. For example, the Internet has led to a huge increase in credit card cheating. Some illegal websites offer some cheap or banned goods or services. Online shoppers who enter their credit card information may never receive the goods they want to buy and their card information could even be for sale in an illegal website. So people in the new economy should be smarter and knowledgeable. Question: "But the new economy is a double-edge sword " in the last passage means _ . - The new economy is as sharp as a sword - The new economy has advantages and disadvantages - The new economy is better than the old economy - Both the new economy and the old economy have disadvantages
The new economy has advantages and disadvantages

Q: Read the following article and select the best answer. Article: More than seven hundred years ago, the Prince of Wales had a very big and brave dog called Gelert. One day the Prince wanted to go hunt-ing with his men. He told his dog to stay at home and look after his baby son. The baby was in a wooden cradle, which was like a small bed. When the Prince came back from hunt-ing, Gelert ran out to meet his master. He wagged his tail and jumped up to put his paws on the Prince's chest. Then the Prince saw the blood on Gelert's jaws and head. "What have you done?" the Prince said. He rushed into his house and looked for his baby son. The cradle was lying on its side on the floor. The clothes were torn and there was blood on them. "So you have killed my son?" the Prince said angrily. "You unfaithful dog!" He took out his sword and killed the dog. Just as Gelert was dying, he managed to bark. Then the Prince heard a baby call to the dog. The Prince ran out of the house and saw his son lying on the ground unhurt. Near him was a dead wolf. Then the Prince knew that Gelert had defended the baby and killed the wolf. The Prince ran back into the house but he was too late. Gelert was dead. The Prince was very sad indeed. Tears ran down his face when he realized 'he had killed his faith-ful friend. The Prince carried the body of his brave dog to the top of a mountain and buried him there. After this, the Prince never smiled again. Every morning at dawn, he walked up the mountain and stood by the dog's grave for a few minutes. If you go to Mount Snowdon in Wales, people will show you where Gelert is buried. There is a sign by his grave. It reminds peo-ple of a brave and faithful dog. Question: The Prince told the dog to _ when he was leaving. - watch the door - take care of his baby at home - welcome his friends - stop the strangers
A: take care of his baby at home

Q: Read the following article and select the best answer. Article: Pairs, Jan. 11--- An armored car robbery last night ended in a wild gunbattle that two men dead and a hostage seriously wounded. The drama began when an armored car carrying the contents of safety boxes to a bank was struck by a large truck, police said. The bank guards were helpless when the robbers jumped out of the truck and tied them. The robbers used heavy tools and explosives to break the armored car. A passing police car turned to look into the accident as the men were removing the contents of the armored car. Police said the three robbers fled on foot across a nearby highway. Stopping a private car driven by a teenaged girl, the three escaped for central Pairs with the police car in hot pursuit . A plain clothes policeman saw the car as it drove through the street of Lat in Quarter. The policeman tried to stop the car, but the thieves started shooting at him, witness said. The girl hostage tried to slip away. Just as she was crawling away from the car, she was hit by a bullet. Police said she was out of danger at Central Hospital. The gunmen gave up the car and got into a shop, pouring fire on more than 50 policemen that surrounded the building. After a wild gunbattle, police broke into the room. They only found two of the gunmen, both seriously wounded. The third thief was believed to have escaped with over $1.3 million in cash and jewellery. Question: A plain clothes policeman is _ . - not a policeman but a soldier . - not a policeman but a gunman . - a policeman but he doesn't wear a uniform . - a robber .
A: a policeman but he doesn't wear a uniform .