重点句型 考点九 -----which was to make the earth’s atmosphere. [基础过关] be +to do The line is to be opened to traffic on National Day. 这条铁路线将于国庆节开通 [拓展延伸] 这一结构还有如下的用法: (1) 表示命令.意思为:必须.不得不 You are to do your homwork before dark. (2) 表示可能性.相当于 .多用于否定句和疑问句 How am I to know what become of him? (3) 表示假设 Certain skills must be learned if one is to use English well. (4) 表示目的 The gouse is to be let or sold. (5) 表示命中注定 The discovery is to have a major effect on the treatment of the heart disease. [典型例题] The flower will grow better if they regularly. A. are to be watered B will be watered C.will water D. will be water [答案]A 考查此句型的语态 [点拨]条件状语从句要用一般时代替将来时.所以.后面的三项都不用考虑 考点十 Walking does a bit of practice now that gravity has changed. [基础过关] now that 既然.由于.引导原因状语从句.that可以省略 Now that you have mentioned it ,I will keep it in mind. Now you aregrown up,you should have your own stand. [拓展延伸] seeing that 鉴于.引导原因状语从句 Seeing that you have a lot of money, you lend some. 既然你有很多钱.借给我些. since.既然.引导原因状语从句.放句首 Since everyone is here ,we will begain the meeting.既然大家都来了.我们开始开会 [典型例题] your fathet has bought a new bike for you, it is no use going to the shop to buy another one. A. Although B. Now that C.After all D.Bcause [答案]B 考查原因状语从句结构 [点拨]now that 引导原因状语从句 [实战演练] 【查看更多】
