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accustomed“習(xí)慣于的”,只有C項是符合題意的。11.B。casual“隨便的”;uniform“一致的,同樣的”;humorous“幽默的”;formal“正式的”。12.B。beneficial (to)“對……有益”;fashionable“時髦的”;changeable“可變的”;suitable“適合的”。13.C。句意:除了對電腦進(jìn)行系統(tǒng)的介紹,這門課程還提供實踐操練。in addition to“除了……之外(還有)”;in exchange for“以……交換”;except for“除了……之外(常表示所除去的和整體是非同類事物)”;due to“由于”。14.C。本題考查連接詞的用法。句意:科學(xué)家們說,可能要過五、六年后才有可能在病人身上試驗這種藥。當(dāng)表達(dá)“多久后才……”時,我們常用句式It will be/may be/was...before...。而It is/has been...since...意為“自從……以來已有多久?!痹诖瞬缓项}意。15.BⅢ.閱讀理解AToday about 70 countries use Daylight Saving Time (DST). Daylight Saving was first introduced during World War I in Australia. During the world wars, DST was used for the late summers beginning January 1917 and 1942, and the full summers beginning September 1942 and 1943.In 1967, Tasmania experienced a drought (干旱). The State Government introduced one hour of daylight saving that summer as a way of saving power and water. Tasmanians liked the idea of daylight saving and the Tasmanian Government has declared daylight saving each summer since 1968. Persuaded by the Tasmanian Government, all states except two passed a law in 1971, for a test use of daylight saving. In 1972, New South Wales, South Australia and Victoria joined Tasmania for regular daylight saving, but Queensland did not do so until 1989.Tasmania, Queensland and South Australia have had irregular plans, often changing their dates due to politics or festivals (節(jié)日). For example, in 1992, Tasmania extended (延長) daylight saving by an extra month while South Australia began extending daylight saving by two weeks for the Adelaide Festival. Special daylight saving plans were made during the Sydney 2000 Olympic Games.The differences in daylight saving in Australia continue to cause serious problems in transport and many other social activities. It also reduces the number of hours in the working day that are mon to all centers in the country. In particular, time differences along the east coast cause major difficulties, especially for the broadcasters of national radio and television.1.Daylight Saving Time was introduced in Tasmania ______.A. to stop the drought in 1967B. to support government officialsC. to pass a special law in the stateD. to save water and electricity2.According to the text, which state was the last to use DST?A. Victoria.B. Queensland.C. South Australia.D. New South Wales.3.What can we learn about