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He slipped and broke his leg _____ he would have to away from school for two weeks.

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Passage Three Questions 31 to 35 are based on the following passage. One of the most exciting races ever run is now in progress between doctors fighting malaria(疟疾)and mosquitoes. According to the most recent counts 225 million people a year suffer attacks of malaria and more than two million die. Public health workers around the world are doing all t11ev can to destroy malaria before the mosquitoes that pass on the disease become resistant to the poisons now used against them. It’s a race against time and against difficulties，with millions of lives in danger and the chances of winning not in man’s favour. Malaria，it is true，has been practically wiped out in thirteen countries. including the United States，and is under attack in many others. But it is equally true that in some parts of the world certain types of malaria-carrying mosquitoes have already learned to resist some of the sprays that formerly killed them. Other types of mosquitoes are not killed as quickly by present sprays as they once were. The World Health Organization is helping national governments to get rid of malaria before resistance among the mosquito population becomes so great that new poisons will have to be found to replace those in use at present. Most of the countries in the world have started，or are planning，campaigns against mosquitoes. If the race against resistance is won by man，it is possible that ten years from now dais old evil will have disappeared completely from the America，perhaps from the world. Malaria has been successfully got rid of in______.

A. all countries
B. some countries
C. no countries
D. most countries

46～50题基于以下题干：一个部队有4个师，编号依次为一、二、三和四。每个师中恰好配备一个装甲旅和一个导弹旅。这8个旅中的每一个都是在1967年、1968年和1969年这3年中的某一年组建的，且满足以下条件： (1)每一个师中的装甲旅不是比导弹旅组建得早就是和导弹旅在同一年组建； (2)二师中的装甲旅和一师中的导弹旅是在同一年组建的； (3)三师中的装甲旅和四师中的导弹旅是在同一年组建的； (4)二师中的装甲旅和三师中的装甲旅不是在同一年组建的； (5)一师中的装甲旅和三师中的导弹旅是在1968年组建的。若三师中的装甲旅比导弹旅组建得早，则下面哪一句话可能正确

A. 二师中的装甲旅是在1967年组建的。
B. 二师中的装甲旅是在1968年组建的。
C. 四师中的装甲旅是在1968年组建的。
D. 四师中的导弹旅是在1968年组建的。

46～50题基于以下题干：一个部队有4个师，编号依次为一、二、三和四。每个师中恰好配备一个装甲旅和一个导弹旅。这8个旅中的每一个都是在1967年、1968年和1969年这3年中的某一年组建的，且满足以下条件： (1)每一个师中的装甲旅不是比导弹旅组建得早就是和导弹旅在同一年组建； (2)二师中的装甲旅和一师中的导弹旅是在同一年组建的； (3)三师中的装甲旅和四师中的导弹旅是在同一年组建的； (4)二师中的装甲旅和三师中的装甲旅不是在同一年组建的； (5)一师中的装甲旅和三师中的导弹旅是在1968年组建的。下面哪一句话可能正确

A. 一师中的导弹旅是在1967年组建的。
B. 二师中的装甲旅是在1967年组建的。
C. 三师中的装甲旅是在1969年组建的。
D. 四师中的导弹旅是在1968年组建的。

Dreams are a product of the sleeper’s mind. They include events and feelings that he has experienced. Most dreams are related to events of the day before the dream and strong wishes of the dreamer. Many minor incidents of the hours before sleep appear in dreams. Few events more than two days old turn up. ______ Events in the sleeper’s surrounding-a loud noise, for example, may become part of a dream, but they do not cause dreams.A. Psychiatrists (精神病医生) often use material from a patient’s dreams to help the person understand himself better.B. Deep wishes or fears-especially those held since childhood-often appear in dreams, and many dreams fulfill such wishes.C. Most dreams occur in color but persons who have been blind since birth do not see at all in dreams.D. Dreaming may help maintain good learning ability, memory, and emotional adjustment.E. In most dreams, the dreamer cannot control what happens to him.F. Dream events are imaginary, but they are related to real experiences and needs in the dreamer’s lif