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1. And last year, Judy Kirby, a 31-year-old Indianapolis mother allegedly suffering from postpartum psychosis, sped into oncoming traffic and plowed into a minivan, killing seven youngsters, including three of her own.
【结构分析】句子主干为：Judy Kirby sped into oncoming traffic and plowed into a minivan；“a 31-year-old Indianapolis mother”为“Judy Kirby”的同位语，其中“suffering from postpartum psychosis”为分词短语充当“mother”的后置定语；“killing seven youngsters, including three of her own”为分词短语充当结果状语。
2. It is through classical conditioning that a child learns to associate his mother's face and voice with happiness and love, for he learns that this person provides food and comfort.
【结构分析】句子为it is…that…的强调句型，其中“through classical conditioning”为被强调的部分；“for he learns that this person provides food and comfort”为介词for引导的原因状语，其中that引导从句充当“learns”的宾语。
【结构分析】句子主干为：Judy Kirby sped into oncoming traffic and plowed into a minivan；“a 31-year-old Indianapolis mother”为“Judy Kirby”的同位语，其中“suffering from postpartum psychosis”为分词短语充当“mother”的后置定语；“killing seven youngsters, including three of her own”为分词短语充当结果状语。
2. It is through classical conditioning that a child learns to associate his mother's face and voice with happiness and love, for he learns that this person provides food and comfort.
【结构分析】句子为it is…that…的强调句型，其中“through classical conditioning”为被强调的部分；“for he learns that this person provides food and comfort”为介词for引导的原因状语，其中that引导从句充当“learns”的宾语。
