高三英语一轮复习---完形填空冲刺练习

1    For millions of people, the mere thought of climbing a ladder or looking over a cliff is enough to set the heart racing. But now scientists have come to the  1  with a pill to treat the fear of  2 . The medicine — which contains the stress hormone cortisol (压力荷尔蒙皮质醇) —  3  with traditional treatment to help people  4  what makes them frightened.  Fear of high places, or acrophobia, is one of the most common phobias (恐惧症).  5 , it is treated by exposing people to heights.  6 , the old way is rarely fully successful. The  7  method combines this “exposure treatment” with an amount of cortisol, the hormone released by the body in times of  8 . The international team of scientists tested the  9  of a cortisol pill on 40 people  10  acrophobia. The participants were either given cortisol or a placebo  11  they were exposed to heights. Placebos look like 12 , but they have no medical effect and are safe for humans. At the end of the  13 , the participants were asked to describe how  1