Teens are more likely to behave badly if their parents expect them to,a new US study has found. "Parents who believe they are simply being realistic might actually be having a bad effect on their children," Christy Buchanan,a teacher at Wake Forest University and one of the authors of the study,said. "Bad expectations on the part of both parents and children predict more rebellious   behaviors later on." The finding came from a study of more than 250 sixth and seventhgraders and their mothers. They were examined at the start of the study and again one year later. If kids' mothers expected them to take more risks and be more rebellious,higher chances of risky behavior were seen.   _     _     _   when kids had bad expectations of themselves. "Sometimes parents expect more negative behavior from their children than they should based on the children's history of behavior," Buchanan said.Parents shouldn't be naive   about the possibility of bad behavior,she said,but it's also a mistake to think that children who are wellbehaved will naturally become rebellious at the age of 13. "By thinking risktaking or rebelliousness is normal for teenagers and showing that to their children,parents might add to other messages from society that make teenagers feel that they are strange if they are not willing to take risks or break laws," she said."This can mean,for example,that when parents expect teens to drink before they turn 21 or to do other risky behaviors,kids are less likely to refuse to do so later in their lives." On the other hand,parents' expectations that teens can exhibit good behaviors and refuse to behave badly or to take risks could help reduce the possibility of bad behavior,Buchanan said."As a parent,you should put expectations on your children carefully." What might be the most suitable title for the passage? A) Risktaking is normal for teens. B) Why are my teens behaving badly? C) Don't expect too much from your teens. D) Bad expectations lead to badbehaving teens.
D


During your stay outside Hong Kong, you may have been exposed to certain infectious  diseases without your knowledge. In case you develop any symptom  such as fever, chills, skin rash, diarrhea or vomiting within 14 days of your arrival in Hong Kong, you should consult a doctor or attend an accident & emergency department or general outpatient clinic. Please bring along this card. CHIEF PORT HEALTH OFFICE The Port Health Office Their staff is glad to answer your questions about travel health. Please inquire at: --Hong Kong Island 18 F, Wu Chung House, 213 Queen's Rd. East, Wanchai. Tel: 2961 8840 -- Kowloon Room 905, Government Offices, Canton Road Tel: 2368 3361 According to the passage, you may get some infectious diseases   _  . A) when arriving in Hong Kong B) before you understand them C) within 2 weeks of your arriving in Hong Kong D) before arriving in Hong Kong
D


Q: Astronauts aboard the space station celebrated a space first on Wednesday by drinking water that had been recycled from their urine , sweat and water got from air. They said "cheers," clicked drinking bags and toasted NASA workers on the ground. The urine recycling system is needed for astronaut stations on the moon and Mars. It also will have NASA money because it won't have to ship up as much water to the station by space shuttles or cargo rockets. Besides, it's important as the space station is about to expand from three people living on board to six. The recycling system had been brought up to the space station last November by space shuttles Endeavour, but it couldn't be used until samples  were tested back on earth. So when it came time to actually drink up, NASA made a big deal of it. The three-man crew stood holding their drinks and congratulated engineers in two NASA centres that worked on the system. "This is something that had been the stuff of science fiction," American astronaut Michael Barratt said before taking a small mouthful. "The taste is worth trying." The new system takes the combined urine of the crew from the toilet, moves it to a big tank, where the water is boiled off, and the vapor  is collected. The rest of the urine is thrown away. Then the water vapor is mixed with water from air, and then it goes through filters  . When six crew members are aboard it can make about six gallons from urine in about six hours. "Some people may find the idea of drinking recycled urine distasteful, but it is also done on earth, but with a lot longer time between urine and the tap," said Marybeth Edeen, the space station's national lab manager. The technology NASA developed for this system has already been used for quick water purification after the 2004 Asian tsunami. What did Edeen say about recycled urine and the recycling system? A) The taste of recycled urine is not as good as that of common water. B) The recycling system has made a science fiction story come true. C) The idea of drinking recycled urine makes astronauts feel unpleasant. D) It takes a longer time on earth to make water from urine than in space.
A: D


Q: Many people take it for granted that black is a color of bad things while white should always mean something good. This may be because, in their opinion, black is related to darkness and white to purity. However, that is not always the case. Did you know that the same one color may mean something differently in different places of the world? In the English-speaking world, black is the color of mourning--people wear black at the funeral. Red is concerned with danger or bloodshed . Yellow is the word for fear. If you are afraid, you are yellow. Yet none of these sayings is true outside the English-speaking world. In China and Korea white is the color of mourning. In Russia, China and some other countries, red stands for beauty, life and excellence. In Italy and Germany, you are yellow with anger, not with fear. Even within the English-speaking area, it is not difficult to find color contradictions .A redcap in the United States is a porter in a railway station. In Britain, however, a redcap is a military policeman. Both names are logical, because both men wear red caps. Similarly, the British term for an American white-collar worker is sometimes called a black-coated worker. One does not have to cross an area to find color differences. Would you rather be red-blooded or a blue-blooded? If we go back to the origin, we find that both terms are logical as both names suggest. The expression "blueblood" comes from Spain, where some noble families proudly told the world that they had "blue blood". Actually they meant that they had no Moorish or Jewish blood. But then why "blue" blood? Because they were fair-skinned, and it is only natural that their blood vessels  stood out appearing blue. In Britain , a redcap is a  _ A) porter B) nobleman C) clerk D) military policeman

A: D