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　　第一部分：大學英語四級機考介紹

　　第二部分：詞匯基礎

　　一、單詞記憶方法

　　1.遺忘發生的規律：艾賓浩斯遺忘曲線圖

　　2.及時復習記憶單詞

　　3.遺忘的原因：干擾(interference)還是消退(decay)?

　　前攝抑制與倒攝抑制

　　4.黑白記憶法

　　5.利用構詞法提高記憶效率

　　6.少食多餐

　　7.聯想記憶

　　8.集中強化學習英語的作用

　　Give a man a fish and he eats for a day.

　　Teach him how to fish and he eats for a lifetime.

　　二、單詞的輻射作用

　　一)單詞在寫作中的作用

　　Limiting the Use of Disposable Plastic Bags

　　1) 一次性塑料袋曾廣為使用

　　2) 由此帶來的問題

　　3) 限制使用一次性塑料袋的意義

　　A serious problem our country has been faced with is the widespread use of disposable plastic bags in the past. These bags could be seen everywhere, from restaurants to department stores, and from university campuses to school children’s playgrounds.

　　It goes without saying that these bags have brought about a wide variety of problems. In the first place, they pollute our environment because, as everyone knows, it takes the bags hundreds of years to disintegrate. Meanwhile, they emit dangerous gases when burned. In the second place, it is a huge waste if we do not use these bags again. This goes against the grains of “sustainable development”. Last but not least, these bags make our cities dirty, which is the reason why they are called “white pollution”.