历史记录已经证明人的脑子可以发挥巨大的功能;人脑对社会和科学的发展做出了不可估量的贡献。但是,点点滴滴的贡献都是人通过脑子去学习、理解、思考和创造才能做到的。今天我们要讲的第一个习惯用语就是和动脑筋有关的: to beat one's brains out. To beat就是打人的"打"。那么,to beat one's brains out 是不是要把某人的脑子打出来呢?那不是太可怕了吗? To beat one's brains out实际上和打人毫无关系。作为一个习惯用语,to beat one's brains out就是绞尽脑汁的意思。也就是说,一个人尽很大的努力去动脑筋弄懂某个很难的课题,或想办法完成一项需要用很多脑筋才能完成的任务。下面我们举的例子就是一个中学生在求他的同学给他一点帮助。他说:
例句-1: Please, could you give me a little help on these algebra problems? I've been beating my brains out all weekend trying to figure them out, but I'm still not sure I understand them.
例句-2: This VCR is too complicated for me! Okay, you've tried to teach me twice how to run it, but I beat my brains out again yesterday trying to tape a show and I still couldn't make it work.
例句-3: Kids all over America watch cartoons on TV every Saturday morning. Almost every day I hear parents complain that the commercials they see over and over again brainwash the kids into buying stuff they don't really need.
例句-4: Several of her friends brainwashed my sister Mary into believing that her best friend Carol was saying nasty things about her behind her back. Mary was as sorry as she could be when she found out it wasn't true.