1. 强调句 It was lightening that caused the forest fire last year.正是闪电引起了去年的那场火灾。

　　2. 虚拟语气 We hurried back to school lest/ for fear that it （should） rain. 我们匆匆忙忙地赶回去，生怕天会下雨。

　　3. 比较级the more…the more The more time a person spends on his work， the less time he has to play. 一个人花在工作上的时间越多，花在玩耍上的时间就越少。

　　4. This subject is far more difficult than everybody has previously expected. 这门课程比每个人以前预料的还要难得多。

　　5. more than…/rather than… A political figure‘s success depends more on external factors than his own characteristics. 一个政治人物的成功与其取决于他个人的特点，不如说取决于外部因素。

　　6. 让步状语 Whether you believe him or not， you have to make the decision. 无论你是否相信他，你都必须做出决定。

　　7. no matter what/ who/when/how…， No matter how hard he tried， he couldn‘t persuade his friends to give up the adventure. 无论他怎么努力，都不能说服他的朋友们放弃冒险。

　　8. despite/in spite of …， He decided to carry out the plan in spite of the protest from his parents. 他决定不顾父母的反对执行他的计划。