(
课件网) 课型 《 高 中 英 语 》 ( 上 外 版 ) 必 修 第 三 册 第 四 单 元 主 讲 人 ： //课 时 授课内容 1 Getting Started/ Reading A/Vocabulary Focus 2 Reading A/ /Grammar in Use 3 Listening and Viewing 4 Moving Forward (Writing) 5 Moving Forward (Speaking) 6 Reading B/ Critical Thinking 7 Further Exploration/ Self-assessment 《 高 中 英 语 》 ( 上 外 版 ) 必修第三册第四单元 学习目标 Learning Objectives： At the end of the lesson, you will be able to ... 1. 能通过阅读有关科学研发的报道，理解情态动词完成式的形式与语义功能; understand the different meanings of perfect modals in the context after reading the report; 2. 能准确理解语境并运用情态动词完成式进行表达; understand the exact meaning of the context and learn to express the meaning correctly using perfect modals; 3. 能对不同现象做出正确的判断，并会运用情态动词完成式表达观点。 form a right attitude towards what is mentioned in context and knowhow to express viewpoints on these things using perfect modals. PERFECT MODALS Perfect Modals Reading Time …where the virus might have originated in a wet market. … must have contributed to ending the outbreak … …China must have initially covered up the outbreak … …couldn’t have been truthful about … …China could have stopped the coronavirus … …China should have informed the WHO about … amounts of time … …its simple operation might have brought great convenience to transport. … … its high sensitivity should have saved huge To express that sth actually happened but was not supposed to happen To express that the speaker feels sure that sth was true in the past can’t/couldn’t have done To express sth was desirable but it didn’ttake place To express sth was not possible in the past To express that sth was possible in the past To express sth was possible in the past but it didn’t happen must have done may/might have done Perfect Modals To express that sth actually happened but was not supposed to happen To express that the speaker feels sure that sth was true in the past shouldn’t have done To express sth was desirable but it didn’ttake place To express sth was not possible in the past To express that sth was possible in the past To express sth was possible in the past but it didn’t happen should have done could have done Perfect Modals I didn’t bring my laptop, and I can’t work now. I should have brou ht y apto . I can’t work now. It is impossible that he forgot to shutdown the engine last night. _____ Olivia was wrong to read the e-mail Max sent me. Olivia shouldn’t have read the e-mail Max sent me. . Rewrite each sentence using a perfect modal. You may need to use the negative. He couldn’t have forgotten to shut down the engine last night. 2 1 3 —You know that you were driving 100 kman hour, don't you —No officer, I couldn't have been (be). This car doesn't do more than 80. —Did you visit the famous museum —No, we could have visited (visit) it, but we spent too much time sho ... ...
