单选题 In the people's Republic of China the odd prequake behavior of horses and other animals (1) successfully to warn people that earthquakes (2) . Recently, a group of American geologists and geographers visited China and listened with great interest (3) the scientists there (4) explained how they have been able to predict many earthquakes in the past three years. The American scientists compared the (5) of the unique Chinese program (6) the impact of Chinese acupuncture (7) Western medicine.
The Chinese scientists use (8) but they also monitor strange (9) such as various ground noises, the fluctuation of well-water levels, and the strange behavior of animals. The results are quite interesting, Chinese seismologists, for example, (10) predicted two magnitude 6.9 quakes near the China-Burma (11) on May 9,1976. The seismologists say that their predictions have been (12) precise that they were able to evacuate many of their people (13) an earthquake occurred, (14) saving thousands of lives. (15) , the Chinese experts also admit that there have been some false alarms.
American scientists have (16) stories of unusual prequake animal behavior before, but they (17) them too seriously until their recent visit to China. "Maybe there's (18) in it", said Jack Everndon, a California scientist. We need some kind of short-term warning. We need something.
He didn't mention the kind of research he may be considering, "Some of us are thinking it's (19) enough to give it a serious look," he commented. "Two years ago we (20) that./

单选题 A. have, used B. have been used C. has been used D. will be used
【正确答案】 C
【答案解析】has been used successfully to warn people已经被成功地用来预警，此处需要用现在完成时的被动语态，B．have been used单复数不对，句中主语为behavior，故为第三人称单数；其他答案不合题意。
单选题 A. is about to occur B. are about to occur C. have occurred D. has occurred
【正确答案】 B
【答案解析】are about to occur就要发生，注意此处的结构：to be about to do；其余选项存在单复数或时态问题。
单选题 A. with B. at C. to D. in
【正确答案】 C
【答案解析】listened to sb.为固定搭配：其余选项介词搭配不当。
单选题 A. they B. are C. were D. who
【正确答案】 D
【答案解析】the scientists there who explained为定语从句：指讲解的科学家。
单选题 A. impact B. affect C. result D. fact
【正确答案】 A
【答案解析】compared the impact of the unique Chinese program将独特的中国方案的影响与……相比，根据上下文6题后的the impact，我们便不难知道比较的对象。
单选题 A. to B. with C. of D. by
【正确答案】 B
【答案解析】compare…with固定搭配，“把……与……相比”。
单选题 A. of B. on C. with D. from
【正确答案】 B
【答案解析】the impact of Chinese acupuncture on Western medicine(中国针灸对西医的影响)，impact on为固定搭配。
单选题 A. a modern electronic equipment B. modern electronic equipments
C. the modern electronic equipments D. modern electronic equipment
【正确答案】 D
【答案解析】modern electronic equipment(现代电子设备)；注意equipment为不可数名词。
单选题 A. signals B. things C. animals D. matters
【正确答案】 A
【答案解析】monitor strange signals监测一些奇怪的信号；根据后面提到的such as ground noises，the fluctuation of well-water levels，便不难做出判断应当选择A．signals(信号)。
单选题 A. succeed B. success C. successful D. successfully
【正确答案】 D
【答案解析】predict successfully成功地预报，此处需要一个副词，其余选项A．succeed， B．success，C．successful词性不对。
单选题 A. border B. line C. boundary D. edge
【正确答案】 A
【答案解析】near the China-Burm a border靠近中缅边境地带，其余选项C．boundary分界线，界限，D．edge边沿，均不恰当。
单选题 A. how B. very C. so D. such
【正确答案】 C
【答案解析】so precise that如此地准确以至于……，其余选项搭配不当。
单选题 A. until B. unless C. before D. after
【正确答案】 C
【答案解析】to evacuate many of their people before an earthquake occurred(在地震产生之前疏散很多人)。其余选项不合情理与常识。
单选题 A. thus B. then C. so D. for
【正确答案】 A
【答案解析】thus saving thousands of lives(这样，拯救了成千上万的性命)。其余选项均不符合习惯用法。
单选题 A. In one word B. On the other hand
C. Generally speaking D. In another word
【正确答案】 B
【答案解析】On the other hand另一方面，此处表示转折关系，根据后面的the Chinese experts also admit that there have been some false alarms可知，这里与前面的成功形成对照关系。
单选题 A. listened B. said C. told D. heard
【正确答案】 D
【答案解析】heard stones of(听说了一些关于……的故事)；其余选项搭配不当。
单选题 A. never took B. did take C. took D. are taking
【正确答案】 A
【答案解析】never took them too seriously(以前从来都没有认真对待它们)。其余选项意思与原文相反。
单选题 A. something B. anything C. nothing D. everything
【正确答案】 A
【答案解析】Maybe there's something in it(或许这里面真还有道理)，something(值得重视的东西)；其他选项意思不对。
单选题 A. worth B. worthy C. worth while D. worthy of
【正确答案】 B
【答案解析】worthy enough to give it a serious look(很值得严肃思考)。其他选项则搭配不当。
单选题 A. had said B. would have said C. wouldn't have said D. hadn't said
【正确答案】 C
【答案解析】Two years ago we wouldn't have that said(要是在两年前，我们一定不会这样说)。注意此处的虚拟语气。