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Directions: After reading the passage below, fill in the blanks to make the passages coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.

“The dangerous thing about lying is people don’t understand how the act changes us,” says Dan Ariely, behavioural psychologist at Duke University. Psychologists have documented children lying as early as the age of two. Lying is even considered 1． developmental milestone, like crawling and walking, with sophisticated planning and attention 2． (require). But, for most people, lying gets increasingly limited as we develop a sense of morality and the ability to self-regulate.

According to Ariely, lying takes work. In studies, he have subjects a chance to deceive for monetary gains while examining their brains in a functional MRI machine. Some people told the truth instantly. But others opted to lie, and they showed increased activity in their frontal parietal(颅腔壁的)control network, which is involved in complex thinking. It suggested that they were deciding between truth and dishonesty, and after thinking about it, 3． (choose) the latter. For a follow-up analysis, he found that people whose neural(神经的)reward centers were 4． (active) when they won money were less likely to be among the group of liars, and the opposite was seen among those so-called habitual liars, suggesting that lying 5． have to do with the inability to resist temptation.

External conditions also matter in terms of when and how often we lie. We are more likely to lie, research shows, when we see others being dishonest. And we are less likely to lie when we think others are watching. “We 6． a society need to understand that, when we don’t punish lying, we increase the probability of 7． happening again, influencing all of us,” Ariely said.

In a 2016 study, Ariely and colleagues showed how dishonesty alters people’s brains, making it easier to tell lies in the future. When people told a lie, the scientists noticed a burst of activity in their amygdala, a crucial part of the brain that produces fear and guilt. But when scientists had their subjects 8． (play) a game in which they won money by deceiving their partner, they noticed the negative signals from the amygdala began to decrease. “Not only that,” said Ariely in an interview with National Science Channel, “ 9． people tended to lie more when they faced no consequences for dishonesty. This means that if you give people multiple opportunities to lie for their own benefit, they start with little lies, 10． get bigger over time.”