Unit 3 The world meets China Using language （ppt课件）-2022新外研版（2019）《高中英语》选择性必修第四册.pptx

1、Unit 3 The world meets China MENULeading-inWhile-classAfter-classPart.1 Leading-inPart.1 Leading-inLeading in新知导引诵读下列例句并感知画线部分的共性1He was nine when his father died.2She left before I could have a word with her.3It is five days since he came here.4He waited until she had finished speaking.5Stay where

2、you are.6Wherever there is a will,there is a way.7Because he had been in prison,employers were unwilling to offer him a job.8As shes been ill,perhaps shell need some help.9The first time we met,we were at a party.10Seeing(that)he refused to help us,theres no reason why we should now help him.Leading

3、 in11You must speak louder so that/in order that I can have time for a cup of tea.12He is so cute a boy that everyone likes him.13Given that she is interested in children,I am sure teaching is the right career for her.14Id like to arrive 20 minutes early so that I can have time for a cup of tea.15It

4、 is such fine weather that we all want to go for a picnic.16As long as there have been codes,people have tried to break them.17Try as she might,Sue couldnt get the car started.18If you come here,I will leave.19Whatever reason he came up with,his words cant be trusted.Leading in共性呈现1画线部分均为状语从句。2句1、2、

5、3、4、9均为时间状语从句。3句5、6均为地点状语从句。4句7、8、10、13均为原因状语从句。5句12、15均为结果状语从句。6句14均为目的状语从句。7句16、18均为条件状语从句。8句17、19均为让步状语从句。Part.2 While-classPart.2 While-classWhile-class1account n.C账户；账目；报道；叙述；说明v解释on account of 由于；因为on no account 决不(置于句首时，句子用部分倒装)take sth.into accounttake account of sth.考虑到某事；把某事考虑进去be of littl

6、e/no account(to sb.)对(某人)无足轻重/不重要account for 解释；是的原因；占(一定数量或比例)accountant n.会计While-classMy salary is paid into my bank account.我的工资直接存入我的银行账户。.this book also gives an account of the lives of lesserknown individuals including the explorer Mungo Park and sculptor Gutzon Borglum.这本书也介绍了像探险家蒙戈帕克和雕塑家格曾鲍

7、格勒姆等鲜为人知的人物的生平。The professor warned the students that on no account should they use mobile phones in his class.教授警告学生们，在他的课堂上绝对不能使用手机。When judging his performance,dont take his age into account.评定他的表现时，不要考虑他的年龄。Did you choose this company on account of high pay?你是因为薪水高才选择这家公司的吗？While-class2promote v

8、t.促进，推动；促销；推销；提升，晋升；将(运动队)晋级promote sth.as sth.把某物推广为某物promotion n.提升；晋升；促销；促进；提倡，倡导promotional adj.推销的；广告宣传的；推广的The purpose of the campaign is to promote our awareness of environmental issues.这项运动的目的是提高我们的环保意识。The band has gone on tour to promote their new album.这个乐队已开始巡回宣传他们的新唱片。He was promoted to

9、 editor and then editorial director.他晋升为编辑，之后又晋升为编辑部主任。The area is being promoted as a tourist destination.这个地区正被推广为旅游点。While-class复习状语从句功能：状语从句起副词作用，用来修饰句中谓语动词、非谓语动词、定语、状语或整个句子。引导词：一般由从属连词引导，也可由连词词组引导。位于句首或句中时常用逗号与主句隔开，位于句尾时可以不用逗号。类别：根据其作用可分为时间、地点、原因、条件、让步、结果、方式、目的和比较等从句。While-class1时间状语从句(1)when,w

10、hile和aswhen从句谓语动词为延续性或非延续性动词，主从句动作可以同时发生，也可以先后发生while 从句谓语动词为延续性动词，强调主从句动作同时发生as从句谓语动词一般为延续性动词。主从句动作同时发生或交替进行，意为“一边，一边；随着”While-classIt was raining when we arrived.我们到达时，天正在下雨。While I was watching TV,the bell rang.我在看电视时，铃响了。As she grew older,she gained in confidence.随着年龄的增长，她的自信心增强了。While-class【误区警

11、示】when作并列连词，意为“这时”，相当于and at this/that time，用于以下句式：be about to do sth.when.正要做某事，这时be on the point of doing sth.when.正要做某事，这时be doing sth.when.正在做某事，这时had done sth.when.刚做完某事，这时While-classI was going upstairs to take my umbrella when suddenly the house opposite to my house collapsed.我正要上楼拿伞，这时我家对面的那

12、所房子倒塌了。(2)表示“一就”的连词as soon as，the moment，the minute，the instant，immediately，directlyThe moment she saw him,she blushed and hurriedly left the room.她一看见他，脸就红了，并慌忙地离开了房间。hardly/barely/scarcely.when.,no sooner.than.，主句用过去完成时，when或than所在从句用一般过去时。The votes had scarcely been counted,when the telephone ran

13、g.选票一统计好，电话就响了。(3)before和sinceIt may be many years before the situation improves.这种状况或许要过很多年才能得到改善。How long is it since we last went to the theatre?我们多久没去看戏了？While-classbeforeIt will be/was一段时间before.过了多长时间才It wont be/wasnt一段时间before.没过多长时间就sinceIt is/has been一段时间since从句，(常用一般过去时)自从以来已经多长时间了。While-c

14、lass(4)until/tillShe didnt start the lesson until the students settled down.等学生们安静下来之后，她才开始上课。【误区警示】until/till用于肯定句，表示“直到为止”，主句谓语动词应用延续性动词；not.until/till.表示“直到才”，not所在主句谓语动词为非延续性动词，until可置于句首。(5)every time，each time，next time，the first time，by the time引导时间状语从句By the time you have finished the task,t

15、he guests will get back.当你完成任务时，客人就回来。While-class2地点状语从句where和whereverWherever she goes,there are crowds of people waiting to see her.无论她去哪里，都有成群的人等着见她。3原因状语从句because，since，as，seeing that(鉴于，由于)，now that，in that(由于)，considering that(考虑到，就而论)，in as much as(既然，由于)，given that(鉴于，考虑到)Now that both of my

16、 grandparents have retired from their jobs in the city,how they are going to spend their retirement is an important decision for them.既然我的祖父母都已经从城市的岗位退休了，如何度过他们的退休生活对他们来说是一个重要的决定。It can be concluded that restaurant keepers need not“be overly concerned about bad tables”given that theyre profitable.结论

17、是餐厅老板不需要“过分担心差的餐位”，因为它们是可获利的。While-class4条件状语从句if，unless，as/so long as(只要)，providing/provided that(如果)，suppose that(假如)，in case that(万一)，on condition that(如果)Nothing will change as long as the workers continue to accept these appalling conditions.只要工人们继续接受这些恶劣的劳动条件，情况将不会有任何改变。I will agree to go prov

18、iding that my expenses are paid.如果帮我支付费用，我就同意去。While-class5让步状语从句though，although，even if/though，as，while，no matter疑问词，疑问词ever，whether.or.(无论还是)Even if/though museums have begged to borrow her collection,she could never split it up.尽管博物馆已恳求过借用她的收藏品，但她永远都不会把收藏品分开。Two people in love are at home whereve

19、r they are,no matter how often they move.无论在哪里，不管多么经常搬家，两个相爱的人都会过得舒舒服服。While-class【误区警示】as，though引导让步状语从句时采用倒装的两种特殊情况若是单数名词或形容词最高级作表语，省略冠词。Youngest as/though he is in our class,he speaks English best.他虽然是我们班年龄最小的，但英语说得最好。行为动词前置时，从句主语后面要用may，might，can，could，will，would；若没有，需加上do(does或did)。Search as th

20、ey would here and there,they could find nothing in the room.他们尽管到处寻找，但在房间里找不到任何东西。Change your mind as/though you do,you will get no help from us.你即使改变主意，也得不到我们的帮助。While-class6结果状语从句so that，so/such.that.(如此以至于)，to the extent that(达到某种程度以至于)，to such a degree that(到如此程度以至于)Hed throw himself into such a

21、 state that Dr.Craven said he couldnt be responsible for forcing her.他让自己陷入这样一种状态，以至于克雷文博士说自己不可能对强迫她负责。We started for the peak early,so that we saw the sunrise.我们很早就动身去山顶，结果我们看到了日出。While-class7方式状语从句as,as if/thoughHe had a thick moustache and long white hair,which sometimes white hair stood on end a

22、s though he had just received an electric shock.他留着浓密的胡子和长长的白发，有时白发挺立，就好像刚遭了电击。【误区警示】as if/though引导方式状语从句与事实相反时，通常用虚拟语气：与现在的情况相反时，用一般过去时；与过去情况相反时，用过去完成时；与将来情况相反时，用“would/could/should/might动词原形”。While-class8目的状语从句so that，in order that，lest(唯恐，以免)，in case，for fear that(唯恐)，to the end that(为起见)I had my

23、 camera ready,in case I saw something that would make a good picture.我把照相机准备好，万一看到什么值得拍的就可以拍下来。Sometimes we are not satisfied with what our friend do,but we will not point it out for fear that we might lose that friend.有时我们对朋友的所作所为并不满意，但我们不会指出来，唯恐可能失去那个朋友。【对比】目的状语从句中常有can，could，may，might，will，would，

24、should等情态动词。而结果状语从句表示客观事实，谓语动词用陈述语气，从句中常无情态动词。While-class9比较状语从句as.as.，than，the比较级.，not as/so.as.Apparently,many people believe that the longer time a person spends at work,the more he accomplishes.很明显，许多人相信一个人工作的时间越长，他(取得)的成就越大。Part.3 After-classPart.3 After-classAfter-class1._ something unexpected

25、 happens,Ill see you tomorrow.2._ the average age of the population increases,there are more and more old people to care for.3._ the average age of the population increases,there are more and more old people to care for.4.He acted _ he hadnt heard any of it.5._ difficulties you are facing,you should

26、 not lose faith in yourself.6.Tom is so independent _ he never asks for money from his parents.After-class7.I never worried about my son _ I was away because my mother would keep an eye on him.8._ the new technology can indeed reduce costs,the company will be willing to bring it in.9.One can always

27、manage to do more things,_ full his schedule is in life.10.There are some seemingly insignificant matters that,when _(deal)with in time,can become bigger ones later on.After-class1.答案：Unless解析：句意:如果没有意外事情发生,我明天去看你。结合句意并分析句子结构可知,空处应用 Unless 引导条件状语从句,意为“如果不,若非”。2.答案：As解析：句意:随着人口平均年龄的增长,有越来越多的老人需要照顾。结合

28、句意并分析句子结构可知,空处应用 As 引导时间状语从句,表示“随着”。3.答案：As解析：句意:随着人口平均年龄的增长,有越来越多的老人需要照顾。结合句意并分析句子结构可知,空处应用 As 引导时间状语从句,表示“随着”。4.答案：as if/as though解析：句意:他表现得好像一点都没有听过这件事一样。结合句意并分析句子结构可知,空处应用 as if/as though 引导方式状语从句,意为“好像”。After-class5.答案：Whatever/No matter what解析：句意:不管你正面临着什么困难,你都不应该对自己失去信心。结合语境并分析句子结构可知,空处应用 Wha

29、tever 引导让步状语从句,意为“不管什么,无论什么”。Whatever 引导让步状语从句时,可以用 No matter what 替换。6.答案：that解析：句意:Tom是如此独立,以至于他从来不向父母要钱。结合句意并分析句子结构可知,空处应填 that,构成 so.that.结构,引导结果状语从句,意为“如此以至于”。7.答案：while解析：句意:我不在的时候也从不担心我的儿子,因为我母亲会照看他。结合句意并分析句子结构可知,空处应用 while 引导时间状语从句,表示“在期间,当的时候”。After-class8.答案：If解析：句意:如果这项新技术确实可以降低成本,这家公司将愿意引进它。结合句意并分析句子结构可知,空处应用 If引导条件状语从句,意为“如果”。9.答案：however解析：考查让步状语从句。句意:一个人总能设法做更多的事情,不管他的生活日程安排得多么满。根据空后形容词full可知,本空应用however“无论多么”引导让步状语从句。10.答案：not dealt解析：考查时间状语从句的省略用法。句意:有一些看似微不足道的问题,若没有及时处理,以后可能会成为更大的问题。when not dealt with 省略了主语和系动词they are。从句补充完整为:when they are not dealt with in time。Thank you!