【正文】 then he passed the virus on to he children‘s results were negative. Within three years, Bill was dead.―I don‘t know how to express what it is like to watch the once handsome man you love and intend to live with forever dying slowly. I cried many nights. He died three months short of ten years of our marriage,‖ says a doctor told Karen that she would soon follow her husband into death,she is still infection has progressed to the early stages of AIDS. Karen is but one of about 30 million people now living with HIV/AIDS,a figure larger than the bined populations of Australia. Ireland and Paraguay. According to one UN report, Africa has 21 million of these victims. By the turn of the century that number could reach 40 million and the disease will bring on the greatest disaster in human history. Of the wold‘s sexually active adults aged 15 to 49,1 in 100 has already been infected with HIV. Of these,only 1 in 10 realizes that he or she is infected. In some parts of Africa,25 percent of the adults are infected. Since the beginning of the spread of AIDS in 1981,about million people have died of is roughly calculated that in 1997 alone, about 2,3 million people died of ,there are fresh reasons for optimism in the battle against the past few years, there has been a drop in new AIDS cases in wealthy addition,promising drugs hold out hope of better health and longer life. telling the story of Karen,the author intends to . people against high risk behaviors the importance of medical tests sympathy for AIDS victims the consequences of AIDS underlined part in Paragraph 1 most probably means ― ‖. lucky in having asked to adopt having birth to was suspected of being infected with HIV after . got married to Karen family members were tested persuaded him to see the doctor 7 found something wrong with his tongue can be concluded from the passage that . drugs will soon stop AIDS spread of AIDS could be controlled is hopeless to win the battle against AIDS death rate of AIDS patients has been reduced B How can a creature weighing over 5 tons and normally taking 150 kilograms of food and 120 liters of water per day survive in a desert environment? In the southwest African country of Namibia, and the Sahara lands of Mali further north, the desert elephant does just that. Although not regarded as a separate species from the African elephant, the desert cousin differs in many ways. Their bodies are smaller, to absorb less heat, and their feet are larger for easier walking across sandy surfaces. They are taller, to reach higher branches. They have shorter tusks （ 象牙 ）， and most importantly, longer trunks to dig for water in riverbeds. Desert elephants can travel over 70 kilometers in search for feeding grounds and waterholes, and have a larger group of families, They drink only every 34 days, and can store water in a ―bag‖ at the back of their throat, which is only used when badly needed. Desert elephants are careful feedersthey seldom root up trees and break fewer branches, and thus maintain what little food sources are available. Yong elephants may even eat the dung （ 糞便 ） of the female leader of a group when facing food shortage. During drought they are unlikely to give birth to their young but with good rains the birthrate will increase greatly. Desert elephants have sand baths, sometimes adding their own urine (尿液 ) to make them muddy! As we continue to overheat our weak pla, it can only be hoped that other animal species will adapt as extraordinarily well to change as the desert elephant. 65. The underlined part in Paragraph 2 means― ‖. A. remains in the African countries B. drinks 120 liters of water a day C. manages to live in desert areas D. eats 150 kilograms of food daily elephants are called careful feeders because they . A. tarely ruin trees B. drink only every 34 days C. search for food in large groups D. protect food sources for their young author answers the question raised in the first paragraph with . A. stories and explanation B. facts and descriptions C. examples and co