（新教材）2020-2021学年高中外研版（2019）英语选择性必修第一册课件：UNIT 5　REVEALING NATURE　USING LANGUAGE .ppt

1、Unit 5Revealing natureUsing language语法精讲素养提升过去完成时【情境探究】观察上面对话,并根据提示完成句子。1.当我到达车站时,火车已经走了。When I arrived at the station,the train _.2.我原以为他会告诉我实情。I _ he could tell me the truth.3.到上学期结束的时候,我们已经学习了3 500个英语单词了。By the end of the last term,we _3,500 English words.had lefthad thoughthad learned【要义详析】一、过去完

2、成时的定义过去完成时既可表示过去某个时间或动作之前所发生的事情(常用时间状语有already,before,ever,just,never,still,yet),也可表示过去某个时间或动作之前所发生的动作一直持续到过去某个时间(常接时间状语:since+时间点,for+时间段)。如:We had learnt fifteen lessons by last week.到上周为止,我们学完了十五篇课文。He had stayed here for two days before he left.他走之前在这儿待了两天。He said that he had lived there since h

3、e was ten.他说他十岁起就住在那里了。二、过去完成时的结构过去完成时由“had+过去分词”构成。三、过去完成时的应用与过去完成时连用的时间状语可以多种多样,使用它的主要依据是看其是否发生在“过去的过去”。如:He had learned some English before I went here.在我来这儿之前他已经学过一些英语。He had written three stories by last year.到去年他已经写了三篇故事。He went there after he read the letter.他看了那封信后就去那里了。过去完成时还经常用于主句为过去时的宾语从句

4、中。如:He said he had been a soldier.他说他当过兵。They said they had seen the film.他们说这部电影他们看过。在hardly/scarcely.when.,no sooner.than.两个结构中的主句通常要用过去完成时。如:Hardly had I told her the news when she began to cry out.我一告诉她这一消息她就大哭了起来。Scarcely had he finished his supper when he went out.他一吃完晚饭就出去了。No sooner had he f

5、allen asleep than he lay down on the bed.他一躺到床上就睡着了。动词expect,hope,suppose,think,want等的过去完成时可用来表示未实现的计划、打算或希望。如:I had hoped to see you.我本希望来看你。He had wanted to buy a house in Beijing.他本想在北京买栋房子。课时检测素养达标.单句语法填空1.The Prime Minister refused to comment on the rumor that he _(plan)to resign his post.2.Its

6、 said that the novelist J.K.Rowling _(devote)so many years to getting published last week.3.Finally,the thief handed over everything that he _(steal)to the police.4.I _(plan)to help you,but it was not within my power.5.I knew I _(do)a good job and was looking forward to getting a positive comment.ha

7、d plannedhad devotedhad stolenhad plannedhad done.翻译句子(汉译英)1.那是他第一次参加抗击新型冠状病毒肺炎。_ 2.他突然想起他把钥匙忘在办公室了。_ 3.当我们到达学校时,丁丁已经读完了两篇课文。_4.这位母亲在上班之前喂过孩子了。_ It was the first time that he had taken part in the fight against the COVID-19.It suddenly occurred to him that he had left his keys in the office.When we got to the school,Ding Ding had finished two lessons.This mother had already fed her kid before she went to work.5.在2012年,我刚从一场大病中恢复过来,这时我收到一个作家会议的邀请。_ In 2012,I had just recovered from a serious illness when I received aninvitation to a writers conference.