Read the following text.Choose the best word(s)for each numbered blank and mark A,B,C or D on the ANSWER SHEET.(10points）
①Trust is a tricky business.②On the one hand,it's a necessary condition 1 many worthwhile things:child care,friendships,etc.③On the other hand,putting your 2 in the wrong place often carries a high 3.
①4,why do we trust at all?②Well,because it feels good.③5 people place their trust in an individual or an institution,their brains release oxytocin,a hormone that 6 pleasurable feelings and triggers the herding instinct that prompts humans to 7 with one another.④Scientists have found that exposure 8 this hormone puts us in a trusting 9:⑤In 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.
①11 for us,we also have a sixth sense for dishonesty that may 12 us.②A Canadian study found that children as young as 14 months can differentiate 13 a credible person and a dishonest one.③Sixty toddlers were each 14 to an adult tester holding a plastic container.④The tester would ask,"What’s in here?"before looking into the container,smiling,and exclaiming,"Wow!"⑤Each subject was then invited to look 15.⑥Half of them found a toy;the other half 16 the container was empty—and realized the tester had 17 them.
①Among 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.②19,only five of the 30 children paired with the"20"tester participated in a follow-up activity.
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