第一部分：大学英语四级机考介绍
听力理解 大意、重要细节 多项选择 25% 70% 单词、词组 听写 10% 听力综合 语法结构 填空、选择 10% 句子跟读 口语 10% 写总结或评论 段落写作 15% 快速阅读 仔细阅读 20% 30%
第二部分：词汇基础
一、单词记忆方法
1.遗忘发生的规律：艾宾浩斯遗忘曲线图
2.及时复习记忆单词
3.遗忘的原因：干扰（interference）还是消退（decay）？
前摄抑制与倒摄抑制
4.黑白记忆法
5.利用构词法提高记忆效率
6.少食多餐
7.联想记忆
8.集中强化学习英语的作用
Give a man a fish and he eats for a day.
Teach him how to fish and he eats for a lifetime.
二、单词的辐射作用
一）单词在写作中的作用
Limiting the Use of Disposable Plastic Bags
1） 一次性塑料袋曾广为使用
2） 由此带来的问题
3） 限制使用一次性塑料袋的意义
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”。
We can benefit a lot from limiting the use of these bags. First of all， a lot of natural resources will be saved if fewer plastic bags are used. Furthermore， our environment will be made much more beautiful， which can help us to build a “harmonious society”。
The Digital Age
1） 如今数字化产品得到越来越广泛的使用，例如……
2） 数字化产品的使用对人们工作、学习和生活产生的影响。
Nowadays， digital products are enjoying growing popularity among people. Take my own daily routine as an example. The first thing I do right after waking up is turn on my cell phone to see if there’s any new message. Then I turn on my