問題詳情

IV. Discourse Structure: Choose the best answer from the box below for each blank in thepassage.Questions 26-30Obsessive Compulsive Disorder (OCD) is a disorder of the brain and behavior. Here is one wayto think about what having OCD is like: Imagine that your mind got stuck on a certain thought orimage. Then this thought or image got replayed in your mind over and over again. You don’t wantthese thoughts but it feels like an avalanche. Along with the thoughts come intense feelings ofanxiety. Anxiety is your brain’s warning system. 26 On the one hand, you might recognizethat the fear doesn’t make sense; yet it still feels very real, intense, and true. When scientistscompare pictures of the brains of groups of people with OCD, they can see that some areas of thebrain are different from the brains of people who don’t have OCD.27 However, research suggests that differences in the brain and genes of those affectedmay play a role. OCD involves problems in communication between the front part of the brain and28 Pictures of the brain at work also show that in some people, the braincircuits involved in OCD become more normal with either serotonin medicines or cognitivebehavior therapy.Some research shows that OCD does run in families. 29 No one really knows what otherfactors might be involved. Perhaps an illness or even ordinary life stresses may induce the activityof genes associated with the symptoms of OCD. Some experts think that OCD that begins inchildhood may be different from the OCD that begins in adults. 30
(A) These brain structures use a chemical messenger called serotonin.
(B) Unfortunately we still do not know the exact cause or causes of OCD.
(C) It is an emotion that tells you to respond, react, protect yourself, and do something.
(D) Other studies note that genes seem to be only partly responsible for causing the disorder.
(E) Studies have shown that genes play a larger role when OCD starts in childhood comparedto when it starts in adulthood.
26

參考答案

答案：C
難度：適中0.6
統計：A(1),B(0),C(3),D(1),E(0)

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