One's first inclination might be to argue that there must be some sort of built-in animal aggression instinct that was activated by the experiment, and that Milgram's teacher-subjects were just following a genetic need to discharge this pent-up primal urge onto the pupil by administering the electrical shock.(剑5, Test 1 passage 2)

　　● 分析：

　　本句的主句为“One's first inclination might be to…”; “to argue that there must be some sort of built-in animal aggression instinct that was activated by the experiment, and that Milgram's teacher-subjects were just following a genetic need to discharge this pent-up primal urge onto the pupil by administering the electrical shock.”为不定式做表语，做be的表语;在此表语中“that there must be some sort of built-in animal aggression instinct”和“that Milgram's teacher-subjects were just following a genetic need to discharge this pent-up primal urge onto the pupil by administering the electrical shock”并列，皆为that引导的宾语从句，做argue的宾语;“that was activated by the experiment”为定语从句，做instinct的定语，关系词为that。