1、Unit 5 Revealing natureUsing language语法精讲深化学习过去完成时(Past perfect)【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 lear
2、ned【要义详析】一、过去完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:*(2020全国卷)She had split up with her husband the week before.一周前她和丈夫分手了。*(2020新高考全国卷)Never had he earned so much money before in his life.他一生中从未赚
3、过这么多钱。*When he was in Beijing,he visited places where he had played as a child.他在北京的时候游览了他儿时曾玩过的地方。*By the time Jack returned home from England,his son had already graduatedfrom college.杰克从英国回到家时,他的儿子已经大学毕业了。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1.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:*(202
4、0新高考全国卷)A flood had hit the area earlier that year and the damage itcaused had driven away a number of birds.那年早些时候,一场洪水袭击了这个地区,洪水造成的损失赶走了一些鸟类。*I was sent to the village last month to see how the development plan had beencarried out in the past two years.上个月我被派到那个村子去看看过去两年的发展计划是如何执行的。*After Darwin h
5、ad spent some time in South America,his room on the ship wascrowded with samples of the plants and animals he had collected.达尔文在南美洲待了一段时间后,船上他的房间里摆满了他收集的动植物标本。2.过去完成时还经常用于主句为过去时的宾语从句中。如:*(2020江苏高考)He said that he had heard the calls to preserve the boxes and hadseen how some of them were listed as h
6、istoric buildings.他说,他听到了保护这些箱子的呼声,也看到其中一些被列为历史建筑。*Darwin suspected that the finches had evolved from a common ancestor,whichhad arrived on the islands a long time before.达尔文怀疑,这些雀类是由一个共同的祖先进化而来的,他们很久以前就来到了这个岛上。3.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:*(2020全国卷)It didnt turn out
7、as I had wished.结果并不如我所愿。*We had expected that you would be able to win the match.我们原来预料你们能够赢比赛。4.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:*I had hardly opened the door when he hit me.我刚打开门,他就打了我。*He had no sooner bought the car than he sold it.他刚买了这辆车,转眼又卖了。5.It was the first/secon
8、d.time that.这是第一/第二次*It was the third time that the boy had been late.这是那个男孩第三次迟到了。【即学活用】语法填空。1.(2020浙江高考)By about 6000 BC,people _(discover)the bestcrops to grow and animals to raise.2.(2020新高考全国卷)One morning she told her children about a family she_(visit)the day before.3.(2020江苏高考)Instead of gett
9、ing down to a new task as I _(expect),he examined the previous work again.had discoveredhad visitedhad expected4.The professor was very unhappy when she sold her house.After all,she _(live)in it for a long time.5.It was the first time that he _(speak)to me in such a tune.had livedhad spoken【语法主题应用】使
10、用本单元所学语法知识,完成下列短文1.2020年初,新型冠状病毒肺炎突袭中国,全国人民积极响应国家的号召待在家里来抗击病毒。(answer the call)2.这是一种以前从未见过的病毒。科学家们积极采集病毒样本(collect virussamples)进行研究。3.正是在大家的共同努力下,新型冠状病毒肺炎得以控制。(It is.that.)4.很明显我们的努力获得了成功,创造了奇迹。(It is evident that.,generatewonder)In early 2020,COVID-19 made a surprise attack on China,and people ac
11、rossthe country positively answered the countrys call to stay at home to fight thevirus.This was a virus that had never been seen before.Scientists hadcollected virus samples actively for research.It was thanks to our collectiveefforts that COVID-19 had been brought under control.It was evident that
12、our efforts had succeeded and generated wonders.主题活动话题实践Revealing nature.话题词汇1.environment-friendly products 环保产品2.take effective measures to protect rare animals采取有效措施保护珍稀动物3.go against nature违背自然规律4.protect the endangered animals from being killed保护濒临灭绝的动物不被杀害5.(be)in danger of extinction/becoming
13、 extinct/dying out处于濒临灭绝的危险之中6.keep/damage the balance of nature保持/破坏生态平衡7.create a pleasant ecological environment创造良好的生态环境8.live in harmony with animals和动物和谐相处9.devote to protecting wildlife致力于保护野生动物10.arouse peoples awareness of wildlife protection唤醒人们保护野生动植物的意识.话题情境根据情境和提示完成对话。1.A:With more and
14、more trees cut down,_(自然平衡)hasbeen damaged,which has caused many wild animals and plants _(处于濒临灭绝的危险中).B:I cant agree more.Its high time that we _(唤起人们保护野生动物的意识).the balance of naturein danger ofextinctionaroused/should arouse peoplesawareness of wildlife protection2.A:Our government should _(致力于保护野
15、生动物),_(防止濒临灭绝的动物被杀害).B:I think so.Whats more,in my opinion,_(应该采取有效的措施)to protect rare wildlife,including punishing thehunters severely.devote to protecting wildlifepreventing the endangered animals from being killedeffective measures should betaken.情境句式1.Everyone should take the responsibility to p
16、rotect the environment./Itseveryones duty to protect the environment.保护环境,人人有责。2.In spite of all this,the government called on the whole nation to support theplaces hit by the worst disaster.尽管如此,政府还是号召全国支援被这次大灾难袭击的地区。3.The city government took effective measures to protect rare animals.市政府采取有效措施保护珍
17、稀动物。4.The aim is to arouse public awareness of the seriousness of water shortage.目的是唤醒公众对水资源缺乏的严重性的意识。5.In this activity,students have raised their awareness of environmental protection.在这次活动中,学生已经提高了他们的环保意识。.情境交流老师正在和同学们讨论最近刚看到的一篇关于濒危动物保护的文章Teacher:From the passage we know that 1._(成千上万的濒危动物正面临着在互联
18、网上被买卖的威胁).Student A:Traders make a great profit from it,which is illegal.Teacher:Therefore,2._(现在是我们迅速采取行动保护他们的时候了).What can we do?thousands of endangered animals arefacing the threat of being bought and sold on the Internetit is high time for us to take quick action to protectthemStudent B:The government should pass some laws to forbid any hunting of rareanimals.Student C:If I were one of the endangered animals,3._(我希望人类能成为我的好朋友而不是我的敌人).I would hope that mancould be a good friend of mine rather than my enemy
