Section C

　　Mountain climbing is becoming a popular sport, but it is also a potentially dangerous one. People can fall. They may also become ill. One of the most common dangers to climbers is altitude sickness, which can affect even very experienced climbers. Altitude sickness usually begins when a climber goes above 8,000 to 9,000 feet. The higher one climbs, the less oxygen there is in the air. When people don’t get enough oxygen, they often begin to gasp for air. They may also feel dizzy and light-headed. Besides these symptoms of altitude sickness, others such as headache and fatigue may also occur. At heights of over 18,000 feet, people may be climbing in a constant daze. Their state of mind can have adverse affect on their judgment. A few precautions can help most climbers avoid altitude sickness. The first is not to go too high, too fast. If you climb to 10,000 feet, stay at that height for a day or two. Your body needs to get used to a high altitude before you climb to a even higher one. Or if you do climb higher sooner, come back down to a lower height when you sleep. Also, drink plenty of liquids and avoid tobacco and alcohol. When you reach your top height, do like activities rather than sleep too much. You breathe less when you sleep, so you get less oxygen. The most important warning is this: if you have severe symptoms, then don’t go away, go down. Don’t risk injury or death because of over-confidence or lack of knowledge.

　　36. potentially

　　37. experienced

　　38. gasp

　　39. dizzy

　　40. fatigue

　　41. constant

　　42. adverse

　　43. precautions

　　44. Your body needs to get used to a high altitude before you climb to a even higher one.

　　45. When you reach your top height, do like activities rather than sleep too much.

　　46. Don’t risk injury or death because of over-confidence or lack of knowledge.

　　【點評】

　　本文是有關(guān)高原病的，主要講述了高原病的癥狀以及預(yù)防措施。文章本身長難句不多，但出現(xiàn)了較多偏難單詞，考驗學(xué)生的臨場心態(tài)。

　　需填單詞難度較大，如dizzy，fatigue，adverse，altitude等，對學(xué)生的詞匯量要求頗高。

　　空格整體分布較為均勻，填寫時間比較充足。所填詞語格式比較重要，如-s等是不可漏過的細(xì)節(jié)。需填寫的句子均較短，難度不是特別大。