新人教版高中英语必修2Unit 3 The Internet-Discovering Useful Structure教案二（精选版）

二：现在完成时态的意义。1．现在完成时的被动语态强调一个发生在过去的被动性的动作，动作已完成并强调对现在造成的影响或结果，主语和谓语之间为被动关系。The door has already been locked.门早已经被锁上了。I have been employed at the job since 2015.自从2015年，我就做这份工作。2．基本构成现在完成时的被动语态的结构为has/have been done。A lot of money has been spent to protect the old temple by now.到目前为止已投入了大笔钱来保护这座古庙。These trees have been watered lately.那些树最近已浇水。2)带有双宾语的动词，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。We have given him the book.→He has been given the book.→The book has been given to him.现在完成时的被动语态的用法1．现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，通常与already, yet, just, never, recently等副词连用。