[解析]
(1)D.推理判断题.根据文章第一段,I grew up in a family that was middle class in terms of finances.Dad worked hard to support the family and mom tried to save a little bit of money while making sure we had enough food to eat and clothes to wear.我在一个经济上属于中产阶级的家庭中长大.爸爸努力工作以支持这个家庭,妈妈试图节省一点钱,同时确保我们有足够的食物和衣服穿.可知,作者的童年生活不贫穷也不算富有.结合选项,故选D.
(2)A.推理判断题.根据文章第四段,However,one day he came home,ate his dinner and informed mom and dad that he was retiring to bed.That evening,my "healthy" brother died suddenly of cardiac arrest.但是,有一天他回到家,吃了晚饭,并通知爸爸妈妈他要退休了.那天晚上,我"健康"的兄弟因心脏骤停突然去世.可知,杰纳出人意料地去世了.结合选项,故选A.
(3)B.细节理解题.根据文章第四段,At the funeral,along with the sadness,my parents and brother felt so much pride.There were so many people that came.Strangers to my parents,each were relating a story of how they were touched by Gener.在葬礼上,伴随着悲伤,我的父母和兄弟感到非常自豪.来的人太多了.每个陌生人对我的父母讲述着一个个关于Gener感动他们的故事.可知,作者的父母感到骄傲是因为吉纳帮助别人生活得更好.结合选项,故选B.
(4)D.主旨大意题.根据文章内容可知,本文写了作者的弟弟在短暂的一生中,因为无私地帮助他人,而活出了一种有意义的生活.说明了生命的意义在于它的奉献,而不是它的长度.D."一个真诚的帮助者."符合文意,结合选项,故选D.