Unit 5 Education 语法知识点课件- 高中英语北师大版（2019）选择性必修第二册

语法课件 Unit5 Education This was because she couldn't see or hear.这是因为她看不见,也听不见。  情景导学 He got injured in the accident. That's because he was careless.他在事故中受伤了。那是因为他 粗心。 He did not see the film last night. That was because he had to help his sister with her homework. 昨天晚上他没有看电影。那是因为他得帮他妹妹做家庭作业。 用法归纳 This/That is/was because...这/那是因为……,because引导的从句表示　　    。 结构 1 This is/was because...这是因为…… 原因 结构拓展 ①This/That is/was why...这/那就是……的原因(why引导表语从句,表示结果) •I didn't catch the early bus. That's why I came late for school.我没有赶上早班车,那就是为什 么我上学迟到了。 ②The reason why...is/was that...……的原因是……(why引导定语从句并在从句中作状语;that 引导表语从句,表示原因) • The reason why he hurt his leg was that he fell from a very tall tree.他弄伤腿的原因是他从 一棵很高的树上摔了下来。 It was the first time Helen had understood such a complex word—a word for something she couldn't touch.这是海伦第一次理解这么复杂的一个词——一个表示她无法触摸的东西的 词。  情景导学 It is the first time that I have felt really relaxed for months.这是我几个月以来第一次感到非常 放松。 This is the second time that in ten years the same fate has befallen us.这是十年间同样的命运第 二次降临在我们头上。 All in all, it is high time that we devoted ourselves to protecting ocean.总而言之,是我们致力于 保护海洋的时候了。  结构 2 It was the first time...这是第一次…… He had been missing his parents and the dog since that was the first time that he had been away from home for such a long time.他一直都很思念他的父母和那只狗,因为那是他第一次离开家 这么长时间。  用法归纳 ①“It/This/That is/was the first/second/last/... time that...”为固定句型, 主句为一般现在时, that从句用　　　　　　　　    ;主句为一般过去时,that从句用　　　　　　　    ,that有时可 省略。 ②“It is high time that...”为固定句型,that从句的谓语动词用　　　　　　    或“should+动 词原形”。 结构拓展 ①the first/second/... time为名词性短语,在句中常用来作连词,引导时间状语从句。 现在完成时 过去完成时　 一般过去时 • The first time I went there, they were living in a small house.我第一次去那里时,他们住在一 个小房子里。 ②for the first/second/... time在句中单独作状语,意为“第几次”。 • For the first time in years, she felt in command of her life.多年来第一次,她觉得生活掌握在 自己的手里。 ③There was a time when...意为“一度/曾经……”,when为关系副词,引导定语从句。 • There was a time when I had some difficulties in my life.有一段时间,我的生活中有一些困 难。