Directions:

　　Read the following text. Choose the best word(s) for each numbered blank and mark [A], [B], [C] or [D] on ANSWER SHEET 1. (10 points)

　　Ancient Greek philosopher Aristotle viewed laughter as “a bodily exercise precious to health.” But ___1____some claims to the contrary, laughing probably has little influence on physical fitness Laughter does ___2___short-term changes in the function of the heart and its blood vessels, ____3___ heart rate and oxygen consumption But because hard laughter is difficult to ___4___, a good laugh is unlikely to have ___5___benefits the way, say, walking or jogging does.

　　___6____, instead of straining muscles to build them, as exercise does, laughter apparently accomplishes the ___7___, studies dating back to the 1930’s indicate that laughter___8___ muscles, decreasing muscle tone for up to 45 minutes after the laugh dies down.

　　Such bodily reaction might conceivably help ___9___the effects of psychological stress. Anyway, the act of laughing probably does produce other types of ___10___ feedback, that improve an individual’s emotional state. ___11___one classical theory of emotion, our feelings are partially rooted ___12___ physical reactions. It was argued at the end of the 19th century that humans do not cry ___13___they are sad but they become sad when the tears begin to flow.

　　Although sadness also ___14___ tears, evidence suggests that emotions can flow ______15_________ muscular responses. In an experiment published in 1988,social psychologist Fritz Strack of the University of würzburg in Germany asked volunteers to ____16____ a pen either with their teeth-thereby creating an artificial smile – or with their lips, which would produce a(n) ____17____ expression. Those forced to exercise their smiling muscles ___18___ more exuberantly to funny cartons than did those whose mouths were contracted in a frown, ___19___ that expressions may influence emotions rather than just the other way around ___20___ , the physical act of laughter could improve mood.

　　1.[A]among [B]except [C]despite [D]like

　　2.[A]reflect [B]demand [C]indicate [D]produce

　　3.[A]stabilizing [B]boosting [C]impairing [D]determining

　　4.[A]transmit [B]sustain [C]evaluate [D]observe

　　5.[A]measurable [B]manageable [C]affordable [D]renewable

　　6.[A]In turn [B]In fact [C]In addition [D]In brief

　　7.[A]opposite [B]impossible [C]average [D]expected

　　8.[A]hardens [B]weakens [C]tightens [D]relaxes

　　9.[A]aggravate [B]generate [C]moderate [D]enhance

　　10.[A]physical [B]mental [C]subconscious [D]internal

　　11.[A]Except for [B] According to [C] Due to [D] As for

　　12.[A]with [B]on [C]in [D]at

　　13.[A]unless [B]until [C]if [D]because

　　14.[A]exhausts [B]follows [C]precedes [D]suppresses

　　15.[A]into [B]from [C]towards [D]beyond

　　16.[A]fetch [B]bite [C]pick [D]hold

　　17.[A]disappointed [B]excited [C]joyful [D]indifferent

　　18.[A]adapted [B]catered [C]turned [D]reacted

　　19.[A]suggesting [B]requiring [C]mentioning [D]supposing

　　20.[A]Eventually [B]Consequently [C]Similarly [D]Conversely

　 热点推荐：

　　公共英语等级考试PETS1-PETS5模拟试题汇总（680套）

　　备考有问题？加入公共英语考试群535346739 有专业的老师提供备考指导，助你通关拿证，还可以和考友一起交流！

　　取证热点：：2020年公共英语不用盲目备考，网校教研团队精心打造高通关套餐班，密训锁分，保障快捷通关!2020年公共英语锁分套餐班强势推出，精锐老师分题型专项辅导，听说读写稳步质变>>课程试听！