2018考研英语(一)真题及答案(完整版).docx

2018考研英语（一）真题及参考答案（完整版）Section I Use of English　　Directions:　　Read the following text. Choose the best word (s) for each numbered blank and mark A, B, C or D on the ANSWER SHEET. (10 points)　　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 , in the wrong place often carries a high 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 hormone that 6 pleasurable feelings and triggers the herding instruct that prompts humans to 7 with one another. Scientists have found that exposure 8 this hormone puts us in a trusting 9: In a Swiss study, researchers sprayed oxytocin into the noses of half the subjects; those subjects were ready to lend significantly higher amounts of money to strangers than were their 10 who inhaled something else.　　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 credible person and a dishonest one. Sixty toddlers were each 14 to an adult tester holding a plastic container. The tester would ask, “What’s 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 the container was empty-and realized the tester had 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 leadership. 19, only five of the 30 children paired with the “20”tester participated in a follow-up activity.Section II Reading Comprehension　　Part A　　Directions:　　Read the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on the ANSWER SHEET. (40 points)　　Text 1　　Among the annoying challenges facing the middle cl