1、【重点词汇】 1. wrap rp v. 包,裹(礼物等);用包裹(或包扎、覆盖等);用缠绕(或围紧)(1)v.(用)包,裹【例1】Imagine mountains wrapped in silver water, shining in the spring sun. 想象一下:春日,群山被银白色的水田包裹,在阳光下熠熠发光。【例2】Id like to wrap (up) Christmas presents in pretty paper. 想象一下,群山被银色的水包裹着,在春天的阳光下闪闪发光。【例3】Zongzi are wrapped in bamboo leaves. 粽子用竹叶
2、包着。(2)v.(用)缠绕,围住【例】He wrapped a scarf around his neck. 他用围巾围住脖子。【扩展】wrapping n. C & U 用于包装的材料2. prevent prvent v. 防止,阻止,阻碍,阻挠(1)vt. 阻止,预防, 防止【例】In this way we prevented the spread of this disease. 通过这种方式,我们防止了这种疾病的传播。【词组扩展】prevent sb / sth (from) doing sth【例1】The flat terraces catch the rainwater an
3、d prevent the soil from being washed away. 平坦的梯田可以收集雨水,防止土壤被冲走。【例2】Pollution prevents people from seeing objects in the sky that they could see quite easily in the past. 污染使人们无法看到过去很容易看到的天空中的物体。【词汇扩展】prevention n U 防止,预防【例】Prevention is better than cure. 预防总比治疗好。 3. principle prnspl n. 原理,原则;道德准则,行为
4、准则;(机器等的)工作原理,(自然界的)定律,法则 (1)n. C 原理,原则【例】Excellent customer service should be our guiding principle. 优秀的客户服务应该是我们的指导原则。(2)n. 道德准则,行为准则(a moral rule or belief about what is right and wrong, that influences how you behave)【例1】I refuse to lie about it; its against my principles. 我拒绝就此撒谎;这违反了我的原则。【例2】S
5、hed never ask to borrow money, on principle. 原则上,她从不要求借钱。(3)n.(机器等的)工作原理,(自然界的)定律;法则【例1】the working principle of the Longji Rice Terraces 龙脊水稻梯田的工作原理【例2】Archimedes principle 阿基米德定律它是流体静力学的一个重要原理,它指出,浸入静止流体中的物体受到一个浮力,其大小等于该物体所排开的流体重量,方向竖直向上并通过所排开流体的形心。这结论是阿基米德首先提出的,故称阿基米德定律。【知识扩展】我们读到的“定律”、“原理(原则)”和“效应”the Murphys law 墨菲定律Newtons third law 牛顿第三定律Archimedes principle 阿基米德定律Paretos principle 帕累托法则(二八定律)Butterfly Effect 蝴蝶效应 catfish effect 鲶鱼效应