单选题 Do you wake up every day feeling too tired, or even upset? If so, then a new alarm clock could be just for you.
The clock, called SleepSmart, measures your sleep cycle, and waits (1) you to be in your lightest phase of sleep (2) rousing you. Its makers say that should (3) you wake up feeling refreshed every morning.
As you sleep you pass (4) a sequence of sleep states—light sleep, deep sleep and REM(rapid eye movement) sleep—that (5)f approximately every 90 minutes. The point in that cycle at which you wake can (6) how you feel later, and may (7) have a greater impact than how much or little you have slept. Being roused during a light phase (8) you are more likely to wake up energetic.
SleepSmart (9) the distinct pattern of brain waves (10) during each phase of sleep, via a headband equipped (11) electrodes (电极)and a microprocessor. This measures the electrical activity of the wearer's brain, in much the (12) way as some machines used for medical and research (13) , and communicates wirelessly with a clock unit near the bed. You (14) the clock with the latest time at (15) you want to be wakened, and it (16) duly(适时地)wakes you during the last light sleep phase before that.
The (17) was invented by a group of students at Brown University in Rhode Island (18) a friend complained of waking up tired and performing poorly on a test. " (19) sleep-deprived people ourselves, we started thinking of (20) to do about it," says Eric Shashoua, a recent college graduate and now chief executive officer of Axon Sleep Research Laboratories, a company created by the students to develop their idea.

单选题 A. beside B. near C. for D. around
【正确答案】 C
【答案解析】[解析] 固定搭配。wait为不及物动词,wait for是固定搭配,意为“等待”,wait for sb.to do sth.意为“等待某人做某事”。
单选题 A. upon B. before C. towards D. till
【正确答案】 B
【答案解析】[解析] 上下文逻辑。空格前提到,SleepSmart等到人们进入最浅睡眠阶段,而空格后提到SleepSmart将人们唤醒。根据逻辑可以推断,闹钟应该是等到人们进入最浅睡眠阶段后才唤醒人,故B项before为正确答案。
单选题 A. ensure B. assure C. require D. request
【正确答案】 A
【答案解析】[解析] 动词辨析。本句的意思是“制造商承诺它会让你每天早晨醒来都会感觉精神振作”。ensure“保证,确保”,强调使某一行为或结果得以确保,符合语境,故A项为正确答案。assure意为“使确信;向……保证”,着重指信心;require意为“需要,要求”,request意为“请求,要求”。
单选题 A. through B. into C. about D. on
【正确答案】 A
【答案解析】[解析] 固定搭配。pass through为固定搭配,意为“经历”。本句是说“人们睡觉时经历几个睡眠阶段”。pass不能与about和into构成搭配;pass on意为“传授,传递”,不符合题意。
单选题 A. reveals B. reverses C. resumes D. repeats
【正确答案】 D
【答案解析】[解析] 动词辨析。只有repeat能够更好地贴合句意,“这些睡眠阶段每90分钟重复一次”,而且后面一句in that cycle也暗示前面提及的现象是一个循环过程,故D项为正确答案。reveal意为“揭示,显示”,reverse意为“反转,颠倒”,resume意为“(中断后)重新开始,恢复”。
单选题 A. effect B. affect C. reflect D. perfect
【正确答案】 B
【答案解析】[解析] 动词辨析。本句中,______how you feel later 和have a greater impact是并列的谓语成分,因此所选的动词应该和impact具有相近的意思,B项affect:意为“影响”,符合语境,为正确答案。effect作动词时表示“实现,使生效”,reflect意为“反映,反射”,perfect作动词时表示“使完美”,均不符合题意。
单选题 A. already B. ever C. never D. even
【正确答案】 D
【答案解析】[解析] 上下文逻辑。经过对______ how you feel later和and may ______have a greater impact than...的综合分析,尤其是have a greater impact than...可知,后者程度进一步递增,D项even“甚至”表示递进,符合语境,为正确答案。
单选题 A. means B. marks C. says D. dictates
【正确答案】 A
【答案解析】[解析] 动词辨析。本句的意思是“浅睡状态下被叫醒更有可能意味着醒来后精力充沛”。A项mean意为“意味着”,符合语境,为正确答案。mark意为“作记号于,标明”,say意为“说”,dictate意为“口授,口述”,均不符合题意。
单选题 A. removes B. relieves C. records D. recalls
【正确答案】 C
【答案解析】[解析] 动词辨析。所填词应该和pattern构成搭配,四个选项中只有C项records“记录”能与pattern构成搭配,故为正确答案。remove意为“移开;除去”,relieve意为“减轻,缓解”,recall意为“回忆起;召回”,均不符合题意。
单选题 A. proceeded B. produced C. pronounced D. progressed
【正确答案】 B
【答案解析】[解析] 动词辨析。______during each phase of sleep作后置定语修饰brain waves, brain waves作所填词的逻辑宾语。故首先可以排除不及物动词proceed“继续进行”和progress“进步,前进”,pronuouce“发音;宣布”虽可作及物动词,但是不能用brain waves作宾语。只有produce“生产,产生”能与brain waves构成搭配,故B项为正确答案。
单选题 A. by B. of C. with D. over
【正确答案】 C
【答案解析】[解析] 固定搭配。equip...with为固定搭配,意为“用……装备;使具备”,其他三项均不能与equip构成搭配,故C项为正确答案。
单选题 A. familiar B. similar C. identical D. same
【正确答案】 D
【答案解析】[解析] 固定搭配。the same...as为固定搭配,意为“和……一样”,其他三项均不能与as构成搭配,故D项为正确答案。familiar意为“熟悉的”,similar意为“相似的”,identical意为“相同的,相等的”。
单选题 A. findings B. prospects C. proposals D. purposes
【正确答案】 D
【答案解析】[解析] 固定搭配。for...purpose为固定搭配,意为“为了……的目的”,故D项为正确答案。finding意为“发现;(调查、研究的)结果”,prospect意为“前景,前途”,proposal意为“建议”。
单选题 A. prompt B. program C. plug D. plan
【正确答案】 B
【答案解析】[解析] 动词辨析。本句句意是“你把闹钟调到你想要被叫醒的最近的时间”。program... with为习惯表达,意为“为……编制/设定(程序等)”,故B项为正确答案。prompt意为“促使,推动”;plug意为“塞住;接通电源”;plan意为“计划”,一般不能和with连用。
单选题 A. where B. this C. which D. that
【正确答案】 C
【答案解析】[解析] 语法结构。分析句子结构可知,at ______you want to be wakened是一个定语从句,修饰前面的the latest time。句中需要填一个关系代词作at的宾语,介词之后只能用which而不能用that,所以C项为正确答案。
单选题 A. then B. also C. almost D. yet
【正确答案】 A
【答案解析】[解析] 副词辨析。根据位于句首用来承上启下的连词and和空格后的副词duly可以推断,所填词应表示顺承关系的副词,故正确答案为A项then“然后,于是”。
单选题 A. claim B. conclusion C. concept D. explanation
【正确答案】 C
【答案解析】[解析] 名词辨析。所填词作invented的宾语,是对前面内容的概括,前面说明了SleepSmart的设计原理和作用,C项concept“概念”最符合语境,故为正确答案。claim意为“要求;声称”,conclusion意为“结论”,explanation意为“解释”,均不能作invented的宾语。
单选题 A. once B. after C. since D. while
【正确答案】 B
【答案解析】[解析] 上下文逻辑。空格前讲一群学生首创了这一概念,空格后讲一个朋友抱怨醒来时感到疲惫,并且考试的表现很差,因此所填词应为表示时间先后的连词,故B项正确。since表示“自从……以来”,引导时间状语时主句要用完成时。
单选题 A. Besides B. Despite C. To D. As
【正确答案】 D
【答案解析】[解析] 介词辨析。根据句中的ourselves和下旬中的we可以推断选as,as作介词时意为“作为”。本句的意思是“我们这些睡眠不足的人,开始考虑对它该做点什么了。”
单选题 A. what B. how C. whether D. when
【正确答案】 A
【答案解析】[解析] 语法结构。______to do about it作thinking of的宾语,并且所填词作do的宾语,只有what符合要求,故A项为正确答案。