答案：

　　41.A 全文第一段可知本文重点是假日后是否开心。

　　42.C 全文最后一段可知，建议人们一年度几次短假，而不是一次长假。

　　43.A 全文第一段第一行 Vacations are a chance to take a break from work，排除 D，第二段第三行 The study showed that the largest lift in happiness comes from the simple act of planning a vacation，排除 C，第三段第一行 After the vacation， happiness quickly dropped back to baseline levels for most people.排除 B。

　　44.C 全文第五段第三行可知，disagreements with a travel partner or being ill，不同行人的丌同意见或者生病，排除 A，B，第五段第二行 And for some travelers，the holiday itself was stressful，排除 D。

　　45.B 全文第二段第二行，第三行可知 They studied happiness levels among 1， 530 Dutch adults， 974 of whom took a vacation during the 32-week study period，1530 中人 974 人度假了，约占比例的三分之二。