Read the article and select the best answer. Article: Climatic conditions are delicately adjusted to composition of the Earth's atmosphere. If there were a change in the atmosphere -- for example, in the amounts of atmospheric gases -- the climate would probably change also. A slight increase in water vapor , for example, would increase the heat-keeping capacity of the atmosphere and would lead to a rise in global temperatures. The level of carbon dioxide, CO2, in the atmosphere has an important effect on climatic change. Most of the Earth's incoming energy is short-wavelength radiation , which tends to pass through atmospheric CO2easily. The Earth, however, reradiates much of the received energy as long-wavelength radiation , which CO2absorbs and then goes toward the Earth. This phenomenon, known as the greenhouse effect, can result in an increase in the surface temperature of a planet. An extreme example of the effect is shown by Venus, a planet covered by heavy clouds composed mostly of CO2, whose surface temperatures have been measured at 430~C.If the CO2 content of the atmosphere is reduced, the temperature falls. According to one respectable theory, if the atmospheric CO2concentration were halved, the Earth would become completely covered with ice. Another equally respectable theory, however, states that a halving of the CO2concentration would lead only to a reduction in global temperatures of 3degC. If, because of an increase in forest fires or volcanic activity, the CO2content of the atmosphere increased, a warmer climate would be produced. Plant growth, which relied on both the warmth and the availability of CO2, would probably increase. As a consequence, plant would use more and more CO2. Eventually CO2levels would decrease and the climate, in turn, would become cooler. With reduced temperatures many plants would die; CO2would thus be returned to the atmosphere and gradually the temperature would rise again. Thus, if this process occurred, there might be a long-term oscillation in the amount of CO2present in the atmosphere, with regular... Question: The author is primarily concerned with _ . Options: A: explaining the effects that the burning of fossil fuels might have on climate B: explaining the effects of CO2on atmospheric radiation C: discussing effects that changes in the CO2level in the atmosphere might have on climate D: challenging hypotheses about the effects of water vapor and CO2on climate
C

Read the article and select the best answer. Article: Earthquakes strike suddenly at any time of the day or night, but there's no way to tell them. If an earthquake happens, it may cause many deaths and injuries and great damage. Decide how and where your family will get together if separated. Choose an out-of-state friend or that the family members can call after the quake to report where they are and how they are. Know the safe place in each room: under the strong tables, desks, or against inside walls. Keep enough food, water and other things, including a flashlight, a radio, medicines and clothing. During the earthquake, you should keep a clear head and never be too nervous to know what to do. Protect your head and neck with your arms. If possible, take a book, a pillow or any other things to protect yourself from falling glass and ruins. If you are indoors, you must immediately lie under any strong furniture. If outdoors, move to an open area away from trees, buildings, walls and power poles. If you are in a narrow valley, move to the centre of it and look out for falling stones. If you are in a car, move to the side of the road and stop the car. Do not stop near buildings, power lines or under bridges. Stay in your car until the shaking stops. Do not move a badly injured person unless he is in great danger after the earthquake. Do not use the telephone immediately unless there is a serious injury or fire. Turn on your radio for instructions and news report. Be prepared for aftershocks. If you want to leave your home, post a message inside your home telling family members where you can be found. Question: After the earthquake, you should make sure of _ . Options: A: the phone number of your friend who lives near your home. B: the place where you can find your family. C: the time when a dangerous earthquake may happen. D: the money with which you can buy food, water and other things.
B

Q: Read the article and select the best answer. Article: Children are missing an important part of their education because parents cannot afford their after-school activities. Half of parents in Wales are saying"no"to after-school activities because they cannot afford them according to a poll for Save the Children. The government said providing free or subsidized leisure activities for children from poorer background is essential to reducing child poverty in the UK. Of those who pay for activities, Save the Children said almost half of parents had to pay more than PS10 per child per week. Many parents were paying more than $20 per week, the survey found. "What happens after the school gates close at 3:30 pm is just as _ as what goes on in the school day,"said Sally Copley at Save the Children. "Children who do after-school activities have more confidence, see the world in different ways and have a stronger sense of identity . All this finally translates into doing better in exams and getting a better career." Half of parents in Wales of 4-to-18-year-olds said their child did some form of sporting activity, the most popular pastime . Other popular choices included drama/dance (26%), Brownies/Scouts (18%)and music lessons(13%). Almost a third of parents said activities they would like their child to take part in were located more than six miles from where they lived. Save the Children said its research highlighted that children from poorer backgrounds did not have the same chances as their better-off friends. Many local governments have offered a wide range of after-young people in their area. The Welsh Assembly Government's community-focused schools programme supports local education authorities to develop a range of out-of-school-hours learning opportunities and childcare for children and young people. Question: The government should _ to reduce child poverty according to the passage. Options: A: provide free or subsidezed leisure activities for poorer children. B: provide low-cost leisure activities for all the children. C: help most families to pay for leisure activities. D: demand the rich to support the poor children.
A: A

(Q).
Read the article and select the best answer. Article: I learned how our attitudes made a big difference in our everyday lives from my friend Mary. She doesn't have any pets. I happened to see her outside on a -30 degree morning walking a dog. I felt sorry for Mary, out there walking a dog that's not hers in such cold weather. I thought maybe she was saying to herself, "Yeah, this is why I don't have any pets! I hate walking dogs." Later that day I saw Mary and said, "I saw you out there walking a dog this morning. Are you unhappy because you had to walk it on such a cold day?" To my surprise, she said that she enjoyed getting out there and walking the dog and that she got good exercise because of the dog. She also said she had talked to her brother, the dog's owner, who was on holiday in Orlando, Florida with his family. He said his children were enjoying Disney World and the resorts . His four-year-old son had breakfast with Mickey Mouse and said it was the best day in his life. Mary said, "If I can help my brother and his family have a wonderful time relaxing for a week, knowing that their pet is being loved and cared for, what more could I ask for?" She added, "It's worth it for me to make the sacrifice so that they can go and have fun." I learned a lesson from Mary. Question: What lesson did the author learn from Mary? Options: A: Traveling is fun, and walking dogs is also fun. B: Walking dogs will make you feel warm. C: Helping others is also a kind of enjoyment. D: Walking dogs is also a kind of exercise.
(A).
C