一、语法基础知识巩固
1. 句子结构
在考研英语中，句子的结构是基础中的基础。我们需要掌握五种基本句子结构：简单句、并列句、复合句、并列复合句和并列简单句。
例子：
- 简单句：She studied hard.
- 并列句：She studied hard, and she also played sports well.
- 复合句：Although she studied hard, she failed the exam.
- 并列复合句：She studied hard; however, she didn’t have enough time for the preparation.
- 并列简单句：She studied hard, and she also played sports well.
2. 时态和语态
时态和语态是英语语法的重要组成部分。在考研英语中，我们需要熟练掌握12种时态和三种语态。
例子：
- 现在时：I am studying.
- 过去时：I studied.
- 将来时：I will study.
- 现在完成时：I have studied.
- 过去完成时：I had studied.
- 将来完成时：I will have studied.
- 被动语态：The book was written by him.
二、语法难点解析
1. 非谓语动词
非谓语动词包括动名词、分词和不定式。在考研英语中，我们需要熟练掌握这三种非谓语动词的用法。
例子：
- 动名词： Studying is important.
- 分词：The sleeping cat looks very cute.
- 不定式：To study is the most important thing in life.
2. 介词和连词
介词和连词是连接句子成分的桥梁。在考研英语中，我们需要掌握各种介词和连词的用法。
例子：
- 介词：The cat is in the box.
- 连词：She went to the park because of the sunny weather.
3. 情态动词
情态动词用于表示推测、许可、命令等语气。在考研英语中，我们需要掌握各种情态动词的用法。
例子：
- Can: Can you help me?
- May: May I come in?
- Must: You must finish your homework before going out.
三、关键技巧
1. 善于总结
在学习语法时，我们需要善于总结各种语法知识，形成自己的语法体系。
2. 多做练习
语法知识的掌握需要通过大量的练习来实现。在考研英语中，我们需要通过做题来提高自己的语法水平。
3. 熟练运用
在复习语法时，我们需要将语法知识应用到实际的语言环境中，提高自己的实际应用能力。
通过以上全解析，相信大家对考研英语语法难点有了更深入的了解。只要掌握关键技巧，并持之以恒地学习和练习，轻松掌握关键技巧不是问题。祝大家考研顺利！