高考目前对词汇的要求是掌握3500词左右。考试大纲对词汇只进行了基本罗列，只有单词的拼写形式和词性。那么词汇掌握到什么程度，对于字典中那么多词条到底怎么学习，这就需要老师通过学习理解课程标准、考试大纲要求，研究高考试题和教材来进行把握。所以可以说3500词的要求给了我们高考的宽度，但是高考的深度就是我们老师给词汇背后深层知识的挖掘。建议老师讲解词汇要到位，可以分级分次进行讲解，但是高考前必须掌握该单词所有的知识点（大于教材后的注解，小于高阶字典）。

cover n. 1.封面on the front/ back cover

              2.被子 the covers (pl.)

He pulled the covers up and turned out the light.

         v. 1.遮盖 Dan covered his face with his hands.

2.走完 She covered 1,0000 meters in less than 4 minutes.

              3.够支付 The award should be enough to cover her tuition fees.

              4.采访，报道 Our best reporters will be sent to covert this event.

              5.涉及 His research covers many aspects of this problem.

6.面积 This city covers 25 square miles.

7.翻唱They’ve covered several hits from 1980s.