13. 形式宾语 Many people find it important to keep a good living habit. 很多人认为保持一个良好的生活习惯非常重要。

　　14. 宾语补足语 The new electronic techniques make possible the effect that has never been created before. 新的电子技术使得一种从未有过的音响效果成为可能。

　　15. 倒装句 Not until recently did we realize that language was closely related to culture. 直到最近我们才意识到语言与文化密切相关。

　　16. Under no circumstances should you hesitate to offer your opinion as it is. 在任何情况下你都应毫不犹豫地说出你真实的想法。

　　17. 比较状语such … as … Such people as you described can hardly succeed in nowadays. 像你描述的那种人在当今社会很难取得成功。

　　18. 原因状语be different/ similar … in that…Robots are different from automatic machines in that they can be reprogrammed to do another job.

　　机器人和自动化机器的不同之处在于它能被重新编程完成其它的任务。

　　19. 宾语从句people hold different attitudes as to… 人们对于是否应该用动物做实验持不同的态度。people hold different attitudes as to whether animals should be used in experiments.

　　20. 并列句 …not only…but also… Sports can not only benefit our body,but also contribute immensely to mental health. 运动不仅对我们的身体有益，而且还极大地有助于精神健康。