单选题
What determines the kind of person you are? What factors make you more or less 42 , intelligent, or able to read a map? All of these are influenced by the interaction of your genes and the environment in which you were 43 The study of how genes and environment interact to influence 44 activity is known as behavioral genetics. Behavioral genetics has made important 45 to the biological revolution, providing information about the extent to which biology influences mind, brain and behavior. Any research that suggests that 46 to perform certain behaviors are based in biology is controversial. Who wants to be told that there are limitations to what you can 47 based on something that is beyond your control, such as your genes? It is easy to accept that genes control physical characteristics such as sex, race and eye color. But can genes also determine whether people will get divorced, how 48 they are, or what career they are likely to choose? A concern of psychological scientists is the 49 to which all of these characteristics are influenced by nature and nurture, by genetic makeup and the environment. Increasingly, science indicates that genes lay the groundwork for many human traits. From this perspective, people are born 50 like undeveloped photographs: The image is already captured, but the way it 51 appears can vary based on the development process. However, the basic picture is there from the beginning. is conclusion might be somewhat disappointing, for no matter how hard we try, we may not be able to change ourselves much. A. abilities B. achieve C. extent D. ease E. contributions F. raised G. essentially H. basically I. smart J. psychological K. grown L. bold M. level N. gain O. eventually
问答题
【正确答案】L．bold
【答案解析】词义辨析题。根据make sb. +adj.的句式可判断，此处空格应当填入形容词，同时根据下文的并列词汇“intelligent, or able to read a map”可见此处应当填入形容词表示人的一个性格特征。在可选范围中，smart与intelligent重复，故选择bold。
【答案解析】上下文题。且根据词性，此处应当填入形容词，剩余可选范围为“smart, psychological, grown, level”，此处指基因与环境相结合影响人的行为，同时根据下文“providing information about the extent to which biology influences mind, brain and behavior”，可见此处讨论的是生理与心理的互相影响，故选psychological。
问答题
【正确答案】E．contributions
【答案解析】习惯搭配题。根据词性，此处应当填入名词，可选范围为“abilities, extent, ease, contributions, level, gain”，能与空格前的make搭配的仅有contributions, make contributions to意为“捐献给……，贡献给……”。
问答题
【正确答案】A．abilities
【答案解析】语法及上下文题。根据语法，此处包含两个that从句，(suggest)that引导的宾语从句中缺少主语，故此处应当填入名词，而此名词的定语为to perform certain behaviors，故可选范围内的名词中只有abilities的语义吻合。
问答题
【正确答案】B．achieve
【答案解析】词义辨析题。根据词性，此处应当填入动词。根据下文“But can genes also determine whether people will get divorced, how ______ they are, or what career they are likely to choose?”可见基因不仅决定人的性别、种族等生理特点，而且决定婚姻、职业发展，故空格处应当填入表示所取得成就的词。选项中gain强调“获益，赢得”，侧重有所收获；achieve表示所获成就，可高可低，语义更加客观中立，故选achieve。