马年春晚一曲《时间都去哪儿了》，一时激起无数人内心的共鸣，引起人们对生命、生活的思考。对待生命，我们不应有的态度是（）

如图所示，三个相同的容器内水面高度相同，甲容器内只有水，乙容器内有木块漂浮在水面上，丙容器中悬浮着一个小球，则下列四种说法正确的是（　　）

根据短文理解选择正确答案。

      A good way to pass an exam is to work hard every day in a year. You may fail （不及格）in the exam if you are lazy for most of the year and then work hard only a few days before the exam. If you are taking an English exam, do not only learn rules of grammar. Try to read stories in English. Speak in English whenever（无论何时）you can. A few days before the exam you should go to bed early. Do not stay up late at night studying. Before you start the exam, read carefully over the question paper（试卷）, try to understand the exact(确切的) meaning of each question. When you have finished your exam, read over your answers. Correct(改正) the mistakes if there are any, and be sure that you have not missed anything out.