小题1:D
小题1:B
小题1:C
小题1:A
小题1:推理题;从第一段的句子:A new study has found that the best way to make yourself feel happier 可知这是一篇简报。选D
小题1:细节题:从第二段的句子:Volunteers who were asked to remember a pleasant event from past 24 hours began to feel happier right away.可知回忆过去高兴的事会让人更愉快。选B
小题1:细节题:从第三段的句子:Professor Richard Wiseman of Hertfordshire University planned the study.可知是个教授。选C
小题1:主旨题:从开头句和最后一句:The result showed that thinking about one good thing that had happened the day before worked the best for making people happier.可知选A,为了今天的快乐想想以前的快乐。