Read the following article and select the best answer. Article: In the atmosphere, carbon dioxide acts rather like a one-way mirror or the glass in the roof of a greenhouse which allows the sun's rays to enter but prevents the heat from escaping According to a weather expert's prediction , the atmosphere will be 3degC warmer in the year 2050 than it is today, if man continues to burn fuels at the present rate.If this warming up took place.the ice caps in the poles would begin to inch,thus raising sea level several meters and severely flooding coastal cities.Also.the increase in atmospheric temperature would lead to great changes in the climate of the northern hemisphere ,possibly resulting in an alteration of the earth's chief food growing zones. In the past,concern about a man-made warming of the earth has concentrated on the Arctic because the Antarctic is much colder and has a much thicker ice sheet.But the weather experts are now paying more attention to West Antarctic.which may be affected by only a few degrees of warming,in other words,by a warming on the scale that will possibly take place in the next fifty years from the burning of fuels. Satellite pictures show that large areas of Antarctic ice are already disappearing.The evidence available suggests that a warming has taken place.This fits the theory that carbon dioxide warms the earth. However, most of the fuel is burnt in the northern hemisphere,where temperatures seem to be falling.Scientists conclude,therefore ,that up to now natural influences on the weather have gone beyond those caused by man.The question is:Which natural cause has most effect on the weather? One possibility is the variable behavior of the sun.Astronomers at one research station have studied the hot spots and 'cold' spots (that is, the ly less hot spots)on the sun.As the sun rotates ,every 27.5 days,it presents hotter or colder faces to the earth,and different aspects to different parts of the earth.This seems to have a considerable effect on the distribution of the earth atmospheric pressure,and consequently on wind... Question: Although the fuel consumption is greater in the northern hemisphere, temperatures there seem to be falling.This is_. - mainly because the levels of carbon dioxide arc rising - partly due to changes in the output of solar energy - possibly because the ice caps in the poles are melting - only due to the effect of the inertia of the earth's climate
partly due to changes in the output of solar energy

Read the following article and select the best answer. Article: An increase in the number of suicides in prefix = st1 /South Korea, has led policeman Yoo Byoung-jong to a new job. He patrols Seoul's bridges to stop desperate people from throwing themselves into the river. According to South Korea's health ministry, suicide rates have doubled in a decade and are now the leading cause of death for people in their 20s and 30s. The country has the fourth-highest suicide rate among the 30 industrialized countries in the Organization for Co-operation and Development (OECD). It recorded 22.8 suicide deaths for every 100,000 people in 2003. That's lower than Hungry, Finlandand close neighbourJapan. But the number is growing by about 1 percent each year, faster than for all other OECD nations. In a move to cut suicides by a fifth by 2010, the health ministry is running a television ad campaign. It opens with a lonely man walking on a bridge. A voice over says: "Think five minutes more before you give it all away. Don't forget you have a loving family." Other ministry plans include setting up more hotlines and training more suicide counselors. Authorities are also limiting websites that provide suicide methods and sometimes even sell toxic chemicals. Distressed individuals range from students worried about poor grades to people in debt as well as disgraced politicians. Experts say the rising toll in some way can be blamed on media coverage of recent high-profile suicides. These include top business leaders and celebrities who apparently lead a number of people to copy their actions. "We saved 50 lives this year when people turned to bridges as a place to die after news reports of such deaths by 'big shots'," said the 38-year-oldYoo, in December. Last July, the government and civil associations urged media to avoid reporting specific methods and locations of suicides. But it is difficult to clearly give reasons for the suicide increase. Question: The passage is mainly about . - suicide problems in Korea - how to reduce suicides in Korea - desperation - the relations between life and suicide
suicide problems in Korea

(Question)
Read the following article and select the best answer. Article: Over 70 percent of the "double single-child couples" in China need help from their parents in taking care of their own kids, according to a recent survey. "Women of China" magazine and a consulting company carried out a survey recently on young couples of the "single-child" generation, the Morning Post reports. The couples surveyed were around 29 and have been married for three years on average, with university education and monthly income of 4.000 yuan ($531). Among them, 43.5 percent have kids. Results show that 71.9 percent of the young couples have help from their parents in taking care of their kids. Grown up as the "single-child", the only child in a family since the family planning policy was adopted in 1979, this generation depends much on their parents. The parents of the "single-child" generation focused more on their children's physical well-being rather than their attitudes and values, according to some psychologists. The research also found that the "double single-child couples" follow a rather traditional value system. Survey shows that 27.5 percent of them got married after dating for one to two years, 25.2 percent two to five years, and 20 percent didn't tie the knot until dating for five years. Also, 30 percent of the couples were schoolmates, while 43.8 percent were introduced by someone. Since their marriage are based on enduring relationships, 65.2 percent of the husbands and 62.9 percent of the wives think that compromise and tolerance are necessary in their marriage. Meanwhile, 21.7 percent of the husbands and 37.1 percent of the wives support the idea that happiness is the key standard for a marriage. Question: Which of the following descriptions about "double single-child couples" is True ? - They are single child in either family and independent of their parents - They are single child in either family and they are dependent on their parents - They have at least two children and can afford to support themselves - They, who were introduced by someone, follow a rather traditional value system
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They are single child in either family and they are dependent on their parents