2020年高考英语完形填空专项练习（十）

　　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 14 they were using a questionnaire. Those taking cortisol were 15 less frightened.

　　The effects were also 16 , with the participants still feeling less frightened a month after taking the pill. The scientists 17 that cortisol works by making people forget what they 18 . It is thought to cut blood flow to areas of the brain that bring back memories, leaving people unable to recall (忆起) their phobia of heights. It also 19 the creation of new memories — allowing patients to 20 their new-found bravery.

　　The drug’s effects have been reported in the Proceedings of the National Academy of Sciences.

　　1. A. rescue B. scene

　　C. ground D. agreement

　　2. A. heights B. competition

　　C. stages D. weight

　　3. A. battles B. works

　　C. compares D. plays

　　4. A. admit B. deny

　　C. forget D. recognize

　　5. A. Successfully B. Surprisingly

　　C. Occasionally D. Traditionally

　　6. A. Instead B. Besides

　　C. Therefore D. However

　　7. A. excellent B. fast

　　C. new D. usual

　　8. A. stress B. trouble

　　C. peace D. failure

　　9. A. effects B. qualities

　　C. importance D. safety

　　10. A. studying B. having

　　C. discussing D. knowing

　　11. A. though B. if

　　C. before D. after

　　12. A. snacks B. fruits

　　C. medicine D. food

　　13. A. experiment B. game

　　C. presentation D. report

　　14. A. proud B. scared

　　C. depressed D. confused

　　15. A. strangely B. noticeably

　　C. hopefully D. temporarily

　　16. A. immediate B. indirect

　　C. lasting D. possible

　　17. A. answer B. question

　　C. refuse D. believe

　　18. A. doubt B. promise

　　C. value D. fear

　　19. A. prevents B. encourages

　　C. involves D. proves

　　20. A. predict B. imagine

　　C. describe D. remember

　　【答案】

　　1-10 AABCD DCAAB

　　11-20 CCABB CDDBD