49. On no account can we + V ~~~ (我们绝对不能...) 例句：On no account can we ignore the value of knowledge. 我们绝对不能忽略知识的价值。

　　50. It is time + S + 过去式 (该是...的时候了) 例句： It is time the authorities concerned took proper steps to solve the traffic problems. 该是有关当局采取适当的措施来解决交通问题的时候了。

　　51. Those who ~~~ (...的人...) 例句：Those who violate traffic regulations should be punished. 违反交通规定的人应该受处罚。

　　52. There is no one but ~~~ (没有人不...) 例句：There is no one but longs to go to college. 没有人不渴望上大学。

　　53. be + forced/compelled/obliged + to + V (不得不...) 例句： Since the examination is around the corner, I am compelled to give up doing sports. 既然考试迫在眉睫，我不得不放弃做运动。

　　54. It is conceivable that + 句子 (可想而知的) It is obvious that + 句子 (明显的) It is apparent that + 句子 (显然的) 例句：It is conceivable that knowledge plays an important role in our life. 可想而知，知识在我们的一生中扮演一个重要的角色。

　　55. That is the reason why ~~~ (那就是...的原因) 例句：Summer is sultry. That is the reason why I don‘t like it. 夏天很燠热。那就是我不喜欢它的原因。

　　56. For the past + 时间，S + 现在完成式...(过去...年来，...一直...) 例句： 6 For the past two years, I have been busy preparing for the examination. 过去两年来，我一直忙着准备考试。

　　57. Since + S + 过去式，S + 现在完成式。 例句：Since he went to senior high school, he has worked very hard. 自从他上高中，他一直很用功。

　　58. It pays to + V ~~~ (...是值得的。) 例句：It pays to help others. 帮助别人是值得的。

　　59. be based on (以...为基础) 例句：The progress of thee society is based on harmony. 社会的进步是以和谐为基础的。

　　60. Spare no effort to + V (不遗余力的) 例句：We should spare no effort to beautify our environment. 我们应该不遗余力的美化我们的环境。

　　61. bring home to + 人 + 事 (让...明白...事) 例句：We should bring home to people the value of working hard. 我们应该让人们明白努力的价值。

　　62. be closely related to ~~ (与...息息相关) 例句：Taking exercise is closely related to health. 做运动与健康息息相关。

　　63. Get into the habit of + Ving = make it a rule to + V (养成...的习惯) We should get into the habit of keeping good hours. 我们应该养成早睡早起的习惯。

　　64. Due to/Owing to/Thanks to + N/Ving, ~~~ (因为...) 例句：Thanks to his encouragement, I finally realized my dream. 因为他的鼓励，我终于实现我的梦想。

　　65. What a + Adj + N + S + V!= How + Adj + a + N + V!(多么...!) 例句：What an important thing it is to keep our promise! How important a thing it is to keep our promise!