高中英语 Unit 4 Global warming Section Ⅲ Grammar教学案 新人教版选修6-新人教版高二选修6英语教学案

Section Ⅲ Grammar——it 的用法(二)课前语法感知Ⅰ.教材语法感知教材原句①There is no doubt that the earth is becoming warmer and that it is human activity that has caused this global warming rather than a random but natural phenomenon.②It was a scientist called Charles Keeling who made accurate measurements of the amount of carbon dioxide in the atmosphere from 1957 to 1997.③They also agree that it is the burning of more and more fossil fuels that has resulted in this increase in carbon dioxide.探究发现(1)强调句型的结构是：It_is/was＋被强调部分＋that＋句子的其他成分，如例句①、③。(2)当被强调部分是人时，也可用 who，如例句②。Ⅱ.真题语法感知1．(2018·天津高考)It was only when the car pulled up in front of our house ________ we saw Lily in the passenger seat.答案：that2．(2018·浙江高考)It was then ________ my mind raced.答案：that3．(2017·天津高考)It was when I got back to my apartment ________I first came across my new neighbors.答案：that4 ． (2016· 天 津 高 考 )You are waiting at a wrong place. It is at the hotel ________ the coach picks up tourists.答案：that5．(2015·湖北高考 )It was in this lake________ they found the longlost sword of the Ming Dynasty.答案：that课堂合作探究一、it 构成的强调句式it 可用来构成强调句式“It is/was＋被强调部分＋that/who ...”，用以强调句子的主语、宾语、状语等成分。名师点津强调句型的几个注意事项：(1)强调句式中的 it 与 that 都没有意义，若把强调句式部分去掉，剩下的部分在句子结构与意义上仍然完整。(2)强调句型的特殊疑问句形式用于主从复合句中的名词性从句时，其语序应用陈述句语序。(3)强调句型与定语从句相结合，若强调句型中的被强调部分含有定语从句，注意对定语从句引导词及强调句型中的 that 要做出正确的判断。①Do you know what it is that they will talk about at the party?你知道他们在聚会上将要谈论些什么吗？②It was in the school where they had their school...