单选题
下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。
Jetlag

Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more prone {{U}}(51) {{/U}} making mistakes. It is actually caused by {{U}}(52) {{/U}} of your "body clock" -a small cluster of brain cells that controls the timing of biological {{U}}(53) {{/U}}. The body clock is designed for a regular rhythm of daylight and darkness-ness, so that it is thrown out of balance when it {{U}}(54) {{/U}} daylight and darkness at the "wrong" times in a new time zone. The symptoms of jetlag often persist for days {{U}}(55) {{/U}} the internal body clock slowly adjusts to the new time zone.
Now a new anti-jetlag system is {{U}}(56) {{/U}} that is based on proven tentative pioneering scientific research. Dr. Martin Moore Ede has {{U}}(57) {{/U}} a practical strategy to adjust the body clock much sooner to the new time zone {{U}}(58) {{/U}} controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates most of the discomfort of jetlag. A successful time zone shift depends on knowing the exact times to either {{U}}(59) {{/U}} or avoid bright light. Exposure sure to light at the wrong time can actually make jetlag worse. The proper schedule {{U}}(60) {{/U}} light exposure depends a great deal on {{U}}(61) {{/U}} travel plans. Data on a specific flight itinerary (旅行路线) and the individual's sleep {{U}}(62) {{/U}} are used to produce a Trip Guide with instructions on exactly when to be exposed to bright light. When the Trip Guide calls {{U}}(63) {{/U}} bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad, {{U}}(64) {{/U}} you are on an aero plane, you can use a special light device to provide the necessary light {{U}}(65) {{/U}} for a range of activities such as reading, watching TV or working.
【正确答案】 C
【答案解析】[解析] prone to是固定搭配,表示“倾向于……的”。
【正确答案】 D
【答案解析】[解析] A.rupture:破裂;B.corruption:腐败、腐化;C.eruption:火山爆发;D.disruption:混乱。句中是说生物钟的混乱是导致making mistake的实际原因。
【正确答案】 B
【答案解析】[解析] A.action:行动;B.function:机能、功能;C.reflection:思考、倒影;D.behavior:行为、举止。句子意思是说生理时钟是指一些控制生理上定时反射的脑细胞。
【正确答案】 B
【答案解析】[解析] A.retain:保留、保持;B.encounter:遇到,C.possess:拥有,D.experience:经历。句中意思是当生物钟在新的时区里,在“错误”的时间里碰上白天和黑夜会导致失去平衡。因为该句采用的是一般现在时,而主语“it”意为单数,因此A、B、C、D四项应用第三人称单数形式。
【正确答案】 A
【答案解析】[解析] 通过上下文,选while“当……的时候”。
【正确答案】 C
【答案解析】[解析] A.adaptable:可适应的、可改变的;B.approachable:可接近的、可到达的;C.available:可获得的;D.agreeable:惬意的、令人愉快的。
【正确答案】 A
【答案解析】[解析] 设计出一种方法用devise“设计”。B.recognize:认出;C.scrutinize:详查;D.visualize:想象,设想。
【正确答案】 B
【答案解析】[解析] 本题考察介词用法。through表“通过……方式”。
【正确答案】 D
【答案解析】[解析] D.seek:寻找,与后面的avoid相对应。A.attain:达到、获得;B.shed:流出;C.retrieve“重新得到、恢复”。
【正确答案】 C
【答案解析】[解析] 习惯用法schedule后跟介词for,句意是“用于光照的时间表”。
【正确答案】 B
【答案解析】[解析] specific“设定的”,应根据特定的路线定制时间表。A.unique:独一无二的;C.complicated:复杂的;D.peculiar;古怪的。
【正确答案】 C
【答案解析】[解析] pattern是指某事发生或发展的“方式,模式”,句意是“根据个人的睡眠方式和特定的旅游路线”。A.norm:标准,规范;B.mode:方式,方法;D.style:风格。
【正确答案】 C
【答案解析】[解析] call off:取消;call on:号召;call for:要求;call up:召唤。句意为当“Trip Guide”要求亮光时,你就应尽可能从事室外活动。
【正确答案】 A
【答案解析】[解析] 根据上下文,空格中应填入表并列关系的连词,or表“或者你在飞机上”。
【正确答案】 D
【答案解析】[解析] stimulus“刺激”,其他词语不合句意。A.agitation:激动、搅拌;B.spur:刺激;C.acceleration:加速。