单选题
阅读下面的短文,文中有15处空白,每处空自给出4个选项,请根据短文的内容从4个选项中选择1个最佳答案。
In the 1950's accumulating scientific evidence linking cigarette smoking and lung cancer made a{{U}} (51) {{/U}}impact{{U}} (52) {{/U}}the smoking public. During this period many health agencies declared smoking to be a{{U}} (53) {{/U}}Hazard. US Surgeon General Leroy E. Brunei said in 1957: "The weigh of the evidence is increasingly pointing to one direction: that{{U}} (54) {{/U}}smoking is one of the causative factors in lung cancer." The initial reports had the heaviest impact, so{{U}} (55) {{/U}}total cigarette production dropped in 1953 and again in 1954.{{U}} (56) {{/U}}reports appeared to have less{{U}} (57) {{/U}}on smoking habits, and by 1957 cigarette production had{{U}} (58) {{/U}}above the 1952 level.
{{U}} (59) {{/U}}four voluntary health organizations urgued president John F. Kennedy to{{U}} (60) {{/U}}a commission to study the widespread implications of the tobacco problem, the Surgeon General's Advisory Committee on Smoking and Health was{{U}} (61) {{/U}}in 1962 to review and evaluate all{{U}} (62) {{/U}}scientific data. When its report, Smoking and Health, was released in early 1964, cigarette consumption again declined{{U}} (63) {{/U}}. Pipe and cigar smoking increased. More than 350, 000 copies of the report were contributed and sold.{{U}} (64) {{/U}}abstracts and pamphlets were prepared by the Public Health Service and other organizations{{U}} (65) {{/U}}a massive educational campaign on the hazards of cigarette smoking.
【正确答案】 B
【答案解析】co-ordinate“同等的”;distinct“明显的”;miraculous“超自然的”; principle“主要的”。
【正确答案】 D
【答案解析】an impact on sth.“对于……的影响”。
【正确答案】 A
【答案解析】health hazard表示“健康危机”。
【正确答案】 B
【答案解析】collective“集体的、共同的”;excessive“过度的”;poisonous“有毒的”;statistical“统计的”,故选B。
【正确答案】 D
【答案解析】易看出A、B、C错,故选D。
【正确答案】 D
【答案解析】subsequent reports与上句中的initial reports相比较。
【正确答案】 A
【答案解析】易知此空应填名词,effort不符题意,故选A。
【正确答案】 D
【答案解析】下文中有above,因此A、B错。而raise是及物动词,故选 risen。
【正确答案】 A
【答案解析】分析上下文,after引导时间状语从句。
【正确答案】 B
【答案解析】maintain“维持”;establish“建设、建立”;order“命令”;supervise“监督”。
【正确答案】 B
【答案解析】tame“驯服”;appoint“委任”;rule“治理、统治”;made“做”。
【正确答案】 C
【答案解析】available“可得到的”,符合本句意思。
【正确答案】 A
【答案解析】temporarily“暂时地”;permanently“永久地”;seriously“严肃地”;economically“经济地”。
【正确答案】 B
【答案解析】这四个选项为相形词。numeral意为“数字、数字的”;numerous意为“极多的,甚多的”;numerable意为“可计算的”;numerate意为“对数学或科学具有良好基本能力的”,根据文中的意思,numerous符合题意。
【正确答案】 C
【答案解析】through在此句中解释为“通过……”。