Psychology is the study of the mind and mental activities. For example, psychologists are interested in why some things make you sad, but others make you happy. They want to know why some people are shy, but others are quite talkative. They also want to know why people do the things that they do. They test intelligence.
    Psychologists deal with the minds and behavior of people. Your mind consists of all your feelings, thoughts, and ideas. It is the result of one part of the brain called the cerebrum. Your behavior is the way you act or conduct yourself. Examples of behavior include shouting, crying, laughing, and sleeping.
    Several people have been instrumental in the field of psychology. Wilhelm Width set up the first psychological laboratory in Leipzig, Germany, in 1879. Ivan Pavlov, a Russian, is noted for his experiments with dogs in which he studied their reflexes and reactions. Around 1900, Sigmund Freud stated his theory that people try to hold back any memories or thoughts that they believed were not good.
    Psychologists should not be confused with psychiatrists. Psychiatrists deal only with mental illness. They are medical doctors who treat people.
单选题     A good title for this selection is ______.
 
【正确答案】 A
【答案解析】 根据第一段第一句“心理学研究心与心理活动”以及全文都在讲心理学家有关心的研究，所以据此可推断，选项A更贴切。
单选题     The sentence 'Some people are shy.' means ______.
 
【正确答案】 B
【答案解析】 第一段第三句说到“They want to know why some people are shy, but others are quite talkative.”两个分句用“but”连接，可推断这里的“shy”与“talkative”是相对的，“talkative”意为“喜欢说话的，健谈的”。“quiet”意为“安静的”。
单选题     We may conclude that psychologists ______.
 
【正确答案】 C
【答案解析】 本题可用排除法。文中最后一段指出，精神病学家利用药物治疗心理疾病。第一段第一句指出，心理学家研究人们思想与行为的关系，而不研究生理疾病，故可排除A项。第三段第三句提到Ivan Pavlov用狗做实验，但这并不代表心理学家们研究动物比人多，故排除B项。第一段第二句提到“psychologists are interested in why some things make you sad, but others make you happy.“说明心理学家不知只是对人难过的事感兴趣，对让人高兴的事同样也敢兴趣，故排除D项。
单选题     Pavlov worked with ______.
 
【正确答案】 B
【答案解析】 第三段第三句提到“Ivan Pavlov, a Russian, is noted for his experiments with dogs in which he studied their reflexes and reactions.” Pavlov用狗做实验，来研究其反射条件。可据此得出Pavlov利用狗来进行研究工作。
单选题     The cerebrum controls ______.
 
【正确答案】 A
【答案解析】 第一段第二句提到“Your mind consists of all your feelings, thoughts, and ideas. It is the result of one part of the brain called the cerebrum.”可知，我们的心是由我们的感觉，和思维组成的，这都是由脑的一个部分——cerebrum(大脑)来控制的。