答案解析：

36. 答案：burdens
解析：根据并列结构中句子最后的joys可知此处需要名词复数形式。
37. 答案：primary
解析：根据后面的名词可知此处需要定语。primary responsibility意为“主要责任”。
38. 答案：extended
解析：根据后面的名词可知此处需要定语，听到extend时应该反应出是过去分词作定语，注意不要漏掉-ed。
39. 答案：cousins
解析：根据上下文可知此处需要表示亲戚关系的复数名词。
40. 答案：determining
解析：根据并列结构中and前的selecting可知此处是个-ing分词，即使听不清，也要补上-ing。
41. 答案：purchases
解析：根据并列结构中and前的moves可知此处需要复数名词。
42. 答案：Particularly
解析：根据上下文，此处需要表示递进关系的副词，句首字母要大写。
43. 答案：consequently
解析：根据并列结构，此处仍然需要副词。consequently ad. 从而，因此。
44. 标准答案：this larger group provides better protection in times of economic crises or other emergencies
听音关键：large group, better protection, in crises/emergencies
答案重构：(1) this large group provides better protection in (case of) economic crises or other emergencies
(2) the extended group provides better protection when facing economic crises or other emergencies
画龙点睛：此句注意两处比较级、主谓一致、crisis的复数形式crises；emergencies不要漏掉i。此处的larger group就是前文提到的extended group。
45. 标准答案：This term refers to a husband and wife united through marriage and their dependent children, whether natural or adopted
听音关键：term, husband, wife, their dependent children, natural or adopted
答案重构：A nuclear family involves a husband and wife and their natural or adopted children, who depend on them
画龙点睛：这句话是在解释前面的术语，注意下定义的常用短语refer to。若照原文听写，united为过去分词作后置定语，不可漏掉d；whether natural or adopted补充说明孩子的身份。改写的目的往往是为了避免照搬复杂原文时出错，如果能够保证不出错，其实不一定非要改写。
46. 标准答案：The small family, with one or perhaps two incomes, is better able to adapt to rapid change and to move when jobs move
听音关键：small family, two incomes, better, adapt to rapid change, move
答案重构：With one or two incomes, it's easier for the small family to adapt to rapid change and job transfer
画龙点睛：先抓主系表，再补充with短语表达的信息。注意比较结构、be able to后面两个并列动词adapt, move。掌握with短语作定语，对于听力和写作都有帮助。