Unit 5 Revealing Nature Using language 运用·提升语言能力（课件PPT）-【新课程学案】新教材2023-2024学年高中英语选择性必修第一册（外研版2019）

Using language—运用·提升语言能力 课时目标 1.观察并掌握过去完成时的构成及用法，能够在真实语境中灵活运用。 2.听懂与生物多样性、自然界相关的话题内容，并能够恰当地运用功能表达询问信息、补充信息。 3.运用多种方法查找信息，了解更多生物多样性的相关知识，提高信息搜索能力。 语法项目——过去完成时　　　　　　　　　　　　　　　　 初识语法——在美文运用中体悟 　　Pulitzer quickly became a successful journalist and by the age of 25, he ①had become a publisher. In 1878, he founded the newspaper the St Louis Post­Dispatch. Pulitzer worked tirelessly, from early morning until midnight. His paper published articles about politics and social issues. Sales of the newspaper shot up. In 1883, Pulitzer bought the New York World. He used the same business strategy he ②had employed at the St Louis Post­Dispatch and sales of the newspaper mounted up until it was the best­selling newspaper in the country.   ①句中的过去完成时表示“已完成”：句中用by引导的时间状语，表示become这一动作在过去时间the age of 25之前已经完成。 ②句中的过去完成时表示“已完成” ：he had employed at the St Louis Post­Dispatch是the same business strategy的定语从句，employ的动作发生在use的动作之前，表示“过去的过去”。 续表 慧学语法——在归纳演绎中学通 [自主感知] ①By the 1920s, he had become an explorer, searching for the tombs of the Egyptian kings. ②I returned the book that I had borrowed. ③Upon their entering the tomb, Carter's lucky pet bird, which he had left in Cairo, was swallowed by a snake. ④Then, a few months after Carter had opened the tomb, Lord Carnarvon, who was also present when the tomb was opened, fell ill with a fever and died in Egypt. ⑤He said he had worked in that factory since 1949. ⑥I had been at school for half an hour when Li Lei came. [会发现] 1．过去完成时的构成：________________。 2．过去完成时表示在过去某一时刻或动作以前已经完成了的动作，即“过去的过去”如句_____________。 3．过去完成时可以指过去的动作延续到_______的某个时刻，如句_______。 had＋过去分词 ①②③④ 过去 ⑤⑥ [语法规则] 一、过去完成时的概念、构成与用法 (一)概念 过去完成时表示在过去某一时刻或某一动作之前已经发生或完成了的动作或存在的状态，它强调对过去的某一点造成的某种影响或结果。 The film had begun before we got to the cinema. 我们到达电影院之前，电影已经开始了。 (二)构成 肯定式 had＋过去分词 否定式 had not/never/hardly＋过去分词 疑问式 had (not)＋主语＋过去分词 被动式 had been＋过去分词 The class had begun when I got to school. 我到学校时，课已经开始了。 She had never tried to put this feeling into words. 她从未试图把这种感情说出来。 Had he