高中英语 Unit 20 New Frontiers Section Ⅷ Grammar学案（含解析）北师大版选修7-北师大版高二选修7英语学案VIP专享

Section Ⅷ Grammar单元语法项目(一)——将来完成时和将来进行时 语法图解探究发现①By the year 2030, development in biochemistry and medical science will have made it theoretically possible for us to live for at least 150 years.②At nine o'clock on Saturday morning, I'll be sitting in the front row and listening to the great Professor Willard talking about the future of my brain.③By the year 2015, the clothing industry will have produced new types of material that will remain stainless no matter what you spill on them. ④We will be linking our brains to these computers and a huge database.[我的发现](1)句①和句③为将来完成时，其基本结构为：will/shall_have ＋过去分词 ，表示将来某个特定时间之前完成的动作。(2)句②和句④为将来进行时，其基本结构为：will/shall_be ＋现在分词 ，表示将来某个特定时间正在进行的动作。一、将来完成时1．构成形式：shall/will have done sth.2．用法：将来完成时表示未来的某个日期或某个动作之前将要完成的动作，也可用来表示一种假设。常与“before＋将来时间”或“by＋将来时间”连用，也可与 before, by the time 或 when 引导的从句(从句用一般现在时)连用。I shall have finished this composition before 9 o'clock.九点之前我将已经完成这篇作文了。When we get to the railway station, the train will probably have left.当我们到达火车站时，火车可能已经开走了。3．类型(1)系表型：shall/will have been＋表语表示某事继续到将来某一时间为止一直存在的状态。The old couple will have been married for 40 years by the end of the month.到这个月末这对老夫妇结婚就有 40 年了。 (2)动词型：shall/will have＋过去分词表示到将来某一时刻已经完成的动作。By the end of this month, we shall have completed the project.我们将在本月月底前完成这项工程。(3)被动结构：shall/will have been＋过去分词表示到将来某一时刻已经被完成的动作。The bridge will have been finished by the end of 2018.到 2018 年末这座桥就竣工了。[名师点津] by the time...