2018年考研英语一试题与答案解析（完整版）.pdf

2018年考研英语一试题与答案解析 （完整版） ——跨考教育英语教研室 SectionI UseofEnglish Directions： Read the following text. Choose the best word (s) for each numbered blank and markA,B,CorD ontheANSWER SHEET.(10points) Trust is a tricky business. On the one hand, its a necessary condition _____(1) many worthwhile things: child care, friendships, etc. On the other hand, putting your _____(2)inthewrongplaceoften carriesahigh_____(3). _____(4), why do we trust at all? Well, because it feels good. _____(5) people place their trust in an individual or an institution, their brains release oxytocin, a hormonethat_____(6)pleasurable feelingsandtriggerstheherding instruct that leads sheep to flock together for safety and prompts humans to _____(7) with one another. Swiss Scientistshave found that exposure_____(8) thishormoneputsus in a trusting _____(9):In a study,researchers sprayed oxytocin into the noses of half the subjects; those subjects were ready to lend significantly higher amounts of money to strangers thanweretheir_____(10)whoinhaled somethingelse. _____(11) for us, we also have a sixth sense for dishonesty that may _____(12) us. A Canadian study found that children as young as 14 months can differentiate _____(13) a credibleperson and a dishonest one. Sixty toddlerswere each _____(14) to an adult tester holding a plastic container.The tester would ask, “Whats in here?” before looking into the container, smiling, and exclaiming, “Wow!” Each subject was _____ then invited to look _____ (15). Half of them found a toy; the other half (16)thecontainerwasempty-andrealizedthetesterhad_____(17)them. Among the children who had not been tricked, the majority were _____ (18) to cooperate with the tester in learning a new skill, demonstrating that they trusted his