(Question)
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 refers to Venus primarily in order to _ . Options: A: show that the greenhouse effect works on other planets but not on Earth B: show the degree to which Earth's atmosphere differs from that of Venus C: support the opinion that as water vapor increases, the amount of CO2increases D: support the argument that the CO2level in the atmosphere has a significant effect on climate
(Answer)
D

(Question)
Read the article and select the best answer. Article: Writer and power chair adventurer Mary Laver has not walked for twenty years. Yet the cheerful and positive 60 year old is not only refusing to let her disability get her down ---- she is also planning to cross the length of Britain in a power wheelchair. Getting ready for the trip is not easy. She has already run into many problems - not least officials and organizations who view her as a health and safety risk. One police officer wrote to Mary requesting: 1. The proposed route through our area with road numbers. 2. The dates and times each day that this will be taking place. 3. The location details of the proposed overnight stops. 4. The names and mobile phone contact details of the Support Crew. Another police officer asked her to travel off road! As Mary told me, this was unacceptable - as a power wheelchair user with limited movement _ ". There are other problems in her way though - she is, after all, in her 60's and has severe rheumatoid arthritis . However, unlike many other people with arthritis, she is no longer in pain. "When you are in a power chair and it is going at eight miles an hour, believe me it feels fast ... to me it is the Formula One chair of electric wheelchairs." At the end of the interview, I asked Mary if she had a message for any other power chair users who wanted to do a challenge, and her reply was simple:"Just do it!" Question: When Mary said "Just do it !" at the end of the interview, she meant " _ " Options: A: Be brave though disabled. B: Fear no challenges at all. C: Take action right away. D: Make it whoever you are.
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C

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Read the article and select the best answer. Article: Tu Youyou, an 84-year-old female scientist, became the first Chinese to win a Nobel Prize in science on Oct 5. Before that, she ever won the 2011 Lasker Award for finding out artemisinin (Qinghaosu), which saved millions of lives. She was grateful for the Lasker prize, but said, "It is just a scientist' duty. I will go on fighting for the health of all humans." Tu kept her work in the 1960s and 1970s. In that age, Malaria could took away people's health. Scientists all over the world had already tried over 240, 000 times but failed. Tu Youyou, a member of the Academy of Traditional Chinese Medicine, Beijing, began to study Chinese herbs. Before 2011, people didn't know Tu very much. Many friends played jokes with her "the Professor of Three None's" : no degree , no study experience abroad, not a member of any Chinese national colleges. But she is hard-working. She read a lot of traditional Chinese medicine books and did a lot of researches on the disease. In February, 2012, Tu was named National Outstanding Females (One of the Ten) Tu is now a model of Chinese medical workers. Question: From Tu Youyou's story, we know that she is a _ woman. Options: A: friendly B: kind C: clever D: hard-working
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D