【正文】 6． How did Ma Shwe manage to save her calf from the fast flowing water? A． By putting it on a safe spot. B． By pressing it against her body. C． By taking it away with her. D． By carrying it on her back. 答案： A 解析： 細節(jié)判斷題。 discussion B． to invite an answer to his question C． to explain the natural state of Mars D． to show his agreement on going to Mars 答案： B 解析： 歸納概括題。 work C． agree。 experienced 答案： D 解析： experience 可數(shù)名詞 “ 經(jīng)歷 ” ；而作為不可數(shù)名詞時意思為 “ 經(jīng)驗 ” ；根據(jù)題意在此考查 experience 作為可數(shù)名詞的用法，排除 A、 C。s still some________(可能性 )for him to recover. 9． Parents spend an________(平均 )of $ 220 a year on toys for their children. 10． Be careful and don39。 was experienced B． experiences。 / 答案： D 解析： the beauty of nature“ 大自然之美 ” ； beauty本為抽象名詞 “ 美 ” ，但此處后面 有限定成分，故為特指； nature 前習慣上不用冠詞。t be safe. Can anybody explain to me just why people would go to Mars, never to return? Steve Minear, UK Here are the things you can think of: the desire to explore a foreign and unique environment, the excitement of being the first humans to open up a new world, the expectation of fame and glory...For scientists there is another reason. Their observations and research will probably lead to great scientific achievements. Donal Trollop, Canada There are already too many people on the Earth. I think that sometime before the end of the century, there will be a human colony(殖民地 )on Mars. It will happen when people finally realize that two way trips to the red pla Mars are unnecessary. Most of the danger of space flight is in the launches(發(fā)射 ) and landings. Cutting the trip home would therefore reduce the danger of accidents, save a lot of money, and open the way to building an everlasting human settlement on another world. Enough supplies can be sent on ahead. And every two years more supplies and more people will be sent to the new colony. Mars has all