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... The article was written to explain_. A) the green house effect B) the solar effects on the earth C) the causes affecting weather D) the models of solar weather interactions
C
Out and about Use personal stereos and mobile telephones with care. If possible, walk in the direction of oncoming traffic, in the middle of the pavement. Look after your valuables; keep your house and car keys separate from your bag. Taxi and mini cabs Whenever possible pre-book a taxi. Use a reputable company; transport forprefix = st1 /Londonmaintains a list. When traveling alone sit in the back seat. In your car Have your keys ready so that you can get straight into your parked car. Consider locking your doors when traveling and when you leave your car to pay for your fuel. You may wish to take a mobile telephone but you must have a hands-free system to use it while driving. Children Don't dress children in clothing with their name on it. Teach them not to speak to people they do not know. Teach them an emergency contact number. Public transport Plan your journey; know the timetable. If possible, try not to travel alone. Avoid sitting upstairs on a double-decker bus. Be _ with your conversation; you never know who is listening. Home security Whenever you go out, always lock the doors and close the windows. Use European Standard locks on the front and back doors and on windows. Ensure you draw the curtains after dark. Avoid displaying identification. Do not put your name on the letterbox or bell. Confirm the identity of callers. Children should be advised not to . A) dress too well B) speak to strangers C) use mobile telephones D) forget any telephone number
B
Q: Bring the Family? Port Regis School is well situated for exploring the beautiful South and West of England Wales. Sibford School is located in Oxfordshire with easy access to London, Oxford and Stratfordupon-Avon. Each school has excellent hotels and guest houses nearby for parents who are dropping off or collecting children from school. Please note: *All students attending English Country Schools must live residentially on site. *We do not recommend that parents live locally while their child is in school:experience suggests that this often upsets the child and disrupts progress. Howard's House Country Hotel & Restaurant About 15 minutes from Port Regis School, Howard's House is set in large gardens hidden away in the quietness of the lovely Nadder valley. Plumber Manor Plumber Manor is a comfortable Jacobean manor house built of local stone, situated about 20 minutes from Port Regis School. The 17th-century house is surrounded by lawns and is set in the tranquil Dorset countryside. Woodville Farm Bed & Breakfast+Self-catering Woodville Farm is family-run arable & livestock farm set in the Dorset countryside about 5 minutes from Port Regis School. Bed and Breakfast accommodation:one double bedroom & one twin bedroom both with bathrooms, tea & coffee making facilities, color1 television & hairdryer. There is also a self-catering 2-bedroom house nearby. Stock Hill Country House Hotel and Restaurant Stock Hill Country House Hotel and Restaurant is a late Victorian mansion set in eleven acres of mature and beautiful wooden grounds on the borders of Dorset, Somerset and Wiltshire. About 10 minutes from Port Regis School. Parents are strongly advised not to live locally while their child is in school because _ . A) their child is too excited to be reunited with parents B) parents stay with their child for too long time C) their visit makes their child angry D) their staying disturbs their child's studies
A: D
(Question)
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. Which of the following descriptions about "double single-child couples" is True ? A) They are single child in either family and independent of their parents B) They are single child in either family and they are dependent on their parents C) They have at least two children and can afford to support themselves D) They, who were introduced by someone, follow a rather traditional value system
(Answer)
B