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导语：以下英语网为大家整理了全面的职称英语考试历年真题及答案解析，《职称英语考试试题汇总：历年真题及答案解析》供大家参考学习。更多职称英语考试试题敬请关注英语网！ 【推荐】关注英语网微信：yingyuwang2013，更快获取真题答案及成绩查询信息。 第3部分：概括大意与完成句子（第23～30题，每题1分，共8分） 下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项中为第1～4段每段1选择个最佳标题；（2）第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项。 Understanding Autism 1 Autism （孤独症） is a life-long developmental disability that prevents individuals from properly understanding what they see， hear， and otherwise sense. This results in severe problems of social relationships， communication， and behavior. Individuals with autism have to painstakingly （费力地） learn normal patterns of speech and communication， and appropriate ways to relate to people， objects， and events， in a similar manner to those who have had a stroke. 2 The cause of autism is still unknown. Some research suggests a physical problem affecting those parts of the brain that process language and information coming in from the senses. There may be some imbalance of certain chemicals in the brain. Genetic （遗传的） factors may sometimes be involved. Autism may indeed result from a combination of several causes。 | 
