第12题: [单项选择]The main idea of this passage is that ______. A. laziness is a moral sin B. there are advantages and disadvantages in being lazy C. laziness is the sin off deep-seated emotional problems D. lazy people do more careful work 参考答案:B 答案解析:此题考查归纳能力。通读全文,不难得出短文第一段侧重于懒惰可能带来的坏处,而第二段则转而说明懒惰也可以是有益的,并举了几个例子证明这一点。选项B概括得最全面、最贴切。