高中英语Unit 5 Working the Land教学课件ppt

这是一份高中英语Unit 5 Working the Land教学课件ppt，共53页。PPT课件主要包含了doing  ，no ，to do，of  ，about　，that   ，into，易混辨析，情景助记  ，of   等内容，欢迎下载使用。

　　Indeed, his slim but strng bdy was just like that f millins f Chinese farmers, t whm he had devted his life.确实,他瘦削但结实的身躯看起来和他为之奉献了一生的千千万万的 中国农民的身躯一样。  (教材P50)情景导学It is high time that we devted urselves t prtecting the cean.是我们致力于保护海洋的时候 了。（写作·海洋保护 ）My English teacher is a nice persn, wh devtes all her energy t imprving her teaching skills. 我的英语老师是一个很好的人,她把全部精力用于提升自己的教学技能。（写作·人物介绍 ） 
用法归纳①devte neself t (　　　    ) sth.献身于(做)某事;致力于(做)某事;专心于(做)某事②devte ne's life/time/energy/mney t (ding)sth.把某人的生命/时间/精力/金钱用于(做)某事上
词汇拓展①devted adj.挚爱的;忠诚的;全心全意的be devted t...深爱……;对……忠诚•Thrughut the whle f their marriage life, he was devted t her.在整个婚姻生活中,他都深 爱着她。②devtin n.奉献;忠诚;挚爱;关爱ne's devtin t...某人对……的关爱/奉献•His devtin t wrk left him with little free time.他全身心投入工作,几乎没有空闲时间。
  　　Hwever, what cncerned him mst was that farmers ften had pr harvests and smetimes even had a serius shrtage f fd t eat.然而,最让他担忧的是农民经常歉收,有时甚至出现 严重的食物短缺。 (教材P50)情景导学There is a shrtage f teachers in Western China, and I think it will fall n ur pst-80s and pst- 90s generatins t take n this respnsibility.中国西部地区师资短缺,我认为承担这一责任将 落在我们80后和90后身上。There being n shrtage f gamers, China’s e-sprts industry desperately needs peple t fill psi- tins such as management, caches and rebradcasters.中国的电子竞技产业并不缺乏电脑游戏 玩家,因此迫切需要人来充任管理人员、教练和转播员等岗位。 (Glbal Times)The lss f big trees was greatest in areas where trees had suffered the greatest water shrtage.在 树木缺水最严重的地区,大树的损失最大。  (2019浙江)
用法归纳①a shrtage　　　    ...缺乏……②there be 　　　　    shrtage f...不缺少……;……很充裕③(a/an) fd/water/labr/energy shrtage 食物/用水/劳动力/能源短缺
词汇拓展①be shrt f water缺水②be shrt fr...是……的简称•On the website Wrd Spy, fappy which is shrt fr fat and happy, is defined as verweight and happy with ne's life.在Wrd Spy网站上,fappy是肥胖和快乐的简称,被定义为超重和对自己 的生活感到快乐。③fr shrt简称;缩写•Maximilian is called Max fr shrt. Maximilian被简称为Max。④in shrt总之;简而言之⑤shrtly adv.立刻;不久 •Shrtly after we were seated, a waiter came ver t ur table with a smile.我们就座后不久,一位服务员微笑着走到我们的桌子旁。 （读后续写·动作、神态描写   ） 
　　Yuan was cnvinced that the answer culd be fund in the creatin f hybrid rice.袁(隆平) 坚信答案能够在杂交水稻的培育中找到。 (教材P50)情景导学Yu'll need t cnvince them f yur ability t d the jb.你要使他们相信你有做这份工作的能 力。 （写作·建议信）  He says it's nt easy t cnvince peple that nutria fur is green...他说要让人们相信海狸鼠的毛 皮是环保的并不容易……  (2020全国Ⅱ)He cnvinced the plice department t allw him t set up a cuple f “chat benches” in tw f their lcal parks.他说服警察局允许他在当地的两个公园里设立几个“聊天长椅”。 (2020天津)
用法归纳①cnvince sb.　　　    sth.说服某人去做某事②cnvince sb.　　    sth.使某人确信某事③cnvince sb. that...使某人确信……(被动形式为sb. be cnvinced that...)
词汇拓展①cnvincing adj.有说服力的;令人信服的•But Darwin's scientific studies were s cnvincing that mre and mre peple started t believe his thery.然而达尔文的科学研究很有说服力,越来越多的人开始相信他的理论。②cnvinced adj.深信的;确信的be cnvinced f sth.确信/深信/坚信某事be cnvinced that...确信/深信/坚信……•I‘m firmly cnvinced f the significance f hnesty, which will cntribute t building a warm and harmnius sciety.我坚信诚实的重要性,它将有助于建立一个温暖、和谐的社会。（读后续写·主旨升华）   
　　The cmmn assumptin then was that it culd nt be dne.当时人们普遍认为这是不可能 做到的。 (教材P50)情景导学The cmpany made sme assumptins abut the ptential market.公司对潜在市场做了一些假设。We make an assumptin that everyne invited will turn up at the party and is making prepara- tins.我们假定所有被邀请的人都将会出席聚会,并且正在做准备。On the assumptin that I am chsen t be chairman f the student unin,I will rganize mre cl- rful after-class activities t enrich ur schl life.假如我被选为学生会主席,我将组织更多丰 富多彩的课外活动以丰富我们的学校生活。（写作·演讲稿 ）  
用法归纳①　　　　 the assumptin that...假定……②make assumptins/an assumptin (　　    ...)(关于……)做出假设③make assumptins/an assumptin 　　    ...假设……
词汇拓展①assume v.假定;认为;承担(责任);取得(权力);呈现(样子);显露(特征)It's (generally) assumed that...人们(普遍)认为…… be...认为……是……•Many peple assume that regular exercise des wnders fr the bdy and mind—but what ex- actly are its health benefits? 许多人认为定期锻炼对身心有奇效,但它对健康究竟有什么好处呢?•It's (generally) assumed that nt nly can drinking Chinese tea refresh us but als it can strengthen ur memry.人们(普遍)认为,喝中国茶不仅可以提神,还可以增强我们的记忆力。 （写作·传统茶文化）  ②assuming (that) cnj.假如;假设……为真•Assuming (that) he's still alive, hw ld wuld he be nw? 假定他还活着,现在有多大年纪了?
　　This hybrid enabled farmers t expand their utput greatly.这种杂交水稻使农民能够大大 增加产量。 (教材P50)情景导学Let me expand n my idea.让我来进一步阐述一下我的观点。As grizzly bears expand their range int places where they haven't been seen in a century r mre, they're increasingly being sighted by humans.随着灰熊的活动范围扩大到一个世纪或更长时 间以来从未出现过的地方,人类正在越来越多地看到它们。 (2023全国甲)
用法归纳①expand 　　    详述,详细阐明②expand(...) 　　    ...(把……)扩大/扩展/发展到……③expand the business扩展业务④expand ne's hrizns 开阔某人的眼界
词汇拓展①expansin n.扩张;扩展;扩大•Chengdu has fcused n imprving the surrunding cuntryside, rather than encuraging large- scale city expansin.成都一直致力于改善周边农村,而不是鼓励大规模的城市扩张。 (Glbal Times)②expansive adj.广阔的;扩张性的
　　Tday, it is estimated that abut 60 percent f dmestic rice cnsumptin in China is cm- prised f crps generated frm Yuan's hybrid strains...据估算,现在中国国内消费的稻米有大约 60%来自袁隆平的杂交水稻品种形成的作物…… (教材P50)情景导学Ding husewrk n weekends is estimated t cst him half f the day.周末做家务估计要花费 他半天的时间。It is estimated that the number f turists wh travel abrad has dubled in the past decade.据估 计,在过去十年中,出国旅游的游客人数翻了一番。Plice estimated the damage at $30 millin.警方估计损失有三千万美元。
用法归纳 ①estimate sth. 　　　    sth.估计……(人数/钱数等)为…… ②be estimated t cst/be wrth+钱数　估计要花费多少钱/值多少钱 ③　　　     is estimated that...据估计…… ④an estimate f...对……的估算 ⑤an accurate estimate准确的估计 ⑥a rugh estimate粗略的估计
词汇拓展①estimatin n.判断;评价;看法;(对水平、数量等的)估计in ne's estimatin根据某人的判断/看法•Wh is the best candidate in yur estimatin? 你认为谁是最合适的人选?②verestimate vt.高估n.过高的评估underestimate vt.低估;轻视
　　Tday, it is estimated that abut 60 percent f dmestic rice cnsumptin in China is cm- prised f crps generated frm Yuan's hybrid strains...据估算,现在中国国内消费的稻米有大约 60%来自袁隆平的杂交水稻品种形成的作物…… (教材P50)情景导学The team which cmprises/is cmprised f dctrs and nurses was immediately sent t the disas- ter area.由医生和护士组成的团队被立刻派往灾区。
用法归纳cmprise和be cmprised　　　    都表示“由……组成”。
词汇拓展表示“由……组成”的短语还有cnsist f、be made up f、be cmpsed f。
　　They may lk beautiful n the utside, but inside there is usually mre water than essential minerals, and they ften have less flavur as well.它们外表可能看起来很美,但里面的水通常比 必需的矿物质多,味道也往往不那么鲜美。 (教材P55)情景导学Generally speaking, students' inner mtivatin and high expectatins frm thers are essential t/ fr their develpment.一般来说,学生的内在动力和来自他人的高期望对他们的发展至关重要。It is essential t enlarge yur vcabulary t vercme yur reading difficulties.为了克服你的阅 读困难,扩大你的词汇量是极其重要的。(写作·学习建议)  It is essential that students (shuld)nt be limited t their classrm but apply their knwledge t scial life.至关重要的是,学生不要局限于课堂,而是将知识应用到社会生活中。
用法归纳①be essential 　　    ...对……至关重要/必不可少②It is essential　　    ...做……是极其重要的。③It is essential that sb. (　　    ) d sth.某人做某事是至关重要的。(that从句需用虚拟语气)
词汇拓展essentially adv.基本上;本质上;根本上•This is the capacity fr a system t create essentially endless cmplexity, t be a srt f “nv- elty generatr”.这是一种让系统创造本质上无尽复杂的能力,是一种“新奇发生器”。 (2023北京)
As an alternative, sme farmers have switched t rganic farming...作为一种替代选择,一些农 民已经转向有机农业……  (教材P55)情景导学We have n alternative but t face failure bravely and learn frm it.我们别无选择,只能勇敢地直 面失败并从中吸取教训。(读后续写·主旨升华)  It helps t prvide healthy alternatives t sugary drinks.它有助于提供含糖饮料的健康替代品。 (2022北京)
用法归纳①have n alternative　　　　     t d sth.除了做某事别无选择;只好去做某事②an alternative/alternatives　　　    sth.某物的替代品
词汇拓展alternatively adv.(引出第二种选择或可能的建议)要不,或者•I culd g t yur huse, r alternatively, we culd meet in the park.我可以去你家,或者我们 可以在公园里见面。
 Organic farmers als plant diverse crps that use different depths f sil t help keep it rich.有机 耕作的农民还种植多种农作物,利用不同深度的土壤来帮助保持土壤肥沃。 (教材P56)情景导学Water was fund at a depth f 30 metres. 在30米深处找到了水。Snw fell t a depth f three feet.雪下三英尺深。Perhaps the Internet has taken us frm knwing a few things in depth t knwing very little abut a lt!也许互联网已经把我们从对少数事情的深入了解变成了对很多事情的知之甚少!The twins are in the depths f despair, and they lk arund in disappintment.这对双胞胎陷入 了绝望的深渊,他们失望地环顾四周。 读后续写·动作、心理描写  
用法归纳①　　     a depth f在……的深度②　　     a depth f到达……的深度③　　     depth 全面;深入;详细地④in the 　　    f...在……的最深处⑤be ut f ne's depth在水深没顶(或够不着底)的地方;非某人所能理解;为某人力所不及
词汇拓展①deep adv.深深地;在深处;至深处 adj.深的;厚的;有……深的②deeply adv.很;非常;极其;强烈地,深沉地breathe deeply深呼吸③deepen v.(使)变深;(使情感、感觉等)加强;(使)变糟
Fr example, peanuts grw n the grund's surface, but many ther vegetables put dwn deep rts.例如,花生长在土壤表层,但是许多其他蔬菜则扎根在(土地)深处。 (教材P56)情景导学Rck has its rts in the blues.摇滚乐起源于蓝调音乐。We need t get t the rt f the prblem befre we can slve it.我们需要先找到问题的根源, 然后才能解决它。　　The thught tk rt in Eurpe lng befre peple realized hw diverse language culd be. 早在人们意识到语言的多样性之前,欧洲就有这种根深蒂固的思想了。Embarrassment rted her t the spt.她尴尬得呆住了。(读后续写·动作描写 )  
用法归纳 ①the rt　　     ... ……的根源 ②have sth.'s rts　　     ... 某物起源于…… ③　　     rt植根;深入人心;生根 ④put dwn rts生根;定居 ⑤rt sb. t the spt使某人呆住不动
词汇拓展rted adj.根源于……的;稳固的be rted in...根源在于……•Many character prblems are rted in childhd experiences.很多性格问题的根源在于童年 的经历。
Given that Yuan's hybrids made him quite wealthy, ne might think he wuld have retired t a life f leisure.考虑到袁隆平(研发)的杂交水稻让他变得相当富有,有人可能认为他会退休去 过悠闲的生活。 (教材P51)情景导学Given that yu are keen n the traditinal Chinese festival,the Lantern Festival,I am writing t intrduce it t yu.鉴于你对中国的传统节日——元宵节非常感兴趣,我写信向你介绍这一节日。 （写作·传统文化  ）
用法归纳　　given that意为“考虑到/鉴于……”,在句中用作连词,引导从句(注意given后的that不能 省略)。
结构拓展①given prep.考虑到;鉴于•Given the present cnditins, I think she's dne rather well.考虑到目前的情况,我认为她已经 做得相当不错了。②cnsidering (that)...考虑到……;鉴于……•She's very active, cnsidering her age.就她的年龄来说,她是十分活跃的。•Cnsidering (that)he's nly just started, he knws quite a lt abut it.鉴于他才刚刚开始,他懂 得的已经不少了。
译文　确实,他瘦削但结实的身躯看起来和他为之奉献了一生的千千万万中国农民的身躯 一样。
译文　然而,最让他担忧的是农民经常歉收,有时甚至出现严重的食物短缺。
译文　据估算,现在中国国内消费的稻米大约60%来自袁隆平的杂交水稻品种形成的作物, 他的(水稻)品种使中国农民每年能够生产出大约两亿吨稻米。
译文　即使在他的晚年,袁隆平的内心依然年轻并且充满愿景,每个人都很兴奋,想看看接 下来他会想出来什么。
Sentence 5　　
译文　因此,要找到一个合适的解决方案,使餐桌上有足够的食物,同时保持人们和环境尽可能健康仍然有很长的路要走。
主语从句在句子中起名词作用的从句叫名词性从句。名词性从句的作用相当于名词词组,在复合句中 充当主语、宾语、表语、同位语等。复合句中用作主语的从句叫作主语从句。一、主语从句的引导词主语从句的引导词有三类,即从属连词(that,whether,if)、连接代词(what,wh,whm,whse, which,whatever,whever,whichever)和连接副词(when,where,hw,why)。1.从属连词(1)that引导的主语从句
情景导学That he is still alive is a wnder.他还活着,真是奇迹。That he said nthing at the meeting made me puzzled.他在会上一言不发使我迷惑不解。用法归纳　　that引导主语从句时无实际词义,且在从句中不充当成分,只起连接作用, 但①　　    省略。(2)whether/if引导的主语从句情景导学Whether we can arrive there n time depends n the traffic.我们能否按时到达那里要由交通状 况决定。It is uncertain whether/if he will leave fr Beijing tmrrw.明天他是否去北京还不确定。
用法归纳whether和if引导主语从句时表示“②　　    ”, 只起连接作用, 在从句中不充当成分。特别提醒if不可以引导位于句首的主语从句,若用it作形式主语,而把主语从句后置,则可以用if 引导; whether可与r nt直接连用,if不可以。2.连接代词(1)what引导的主语从句情景导学What clr the dr will be painted has nt been decided yet.门被漆成什么颜色还没有决定。What the situatin will be puzzles me.情况会怎样令我困惑。What caused the leak remains unanswered.导致泄漏的原因仍未得到解答。What he said was brief but significant.他的讲话虽然简短但是意义重大。
用法归纳　　what引导主语从句时起连接作用,在其引导的从句中充当定语、表语、③　　    和④    　    , 表示“……的事物”。(2)wh, whm, whse, which引导的主语从句情景导学It is still uncertain wh will cme/which he will chse/whm he went with/whse bk it is.还 不确定谁会来/他会选择哪一个/他和谁一起去的/这是谁的书。
用法归纳　　wh, whm, whse, which引导主语从句时在从句中充当一定的句子成分,表示一定的词 汇意义,含有疑问意味,一般在从句中作主语、宾语、表语或定语。(3)whatever, whever, whichever引导的主语从句情景导学Whever says that is a liar.=Anyne wh says that is a liar.任何说那话的人都是骗子。Whatever he des frm nw n has nthing t d with me. =Anything that he des frm nw n has nthing t d with me.从现在起他做的任何事都与我无关。
用法归纳1)引导主语从句时whever相当于“⑤　　　     +wh”或the persn/peple wh, 意为“任 何……的人”。2)引导主语从句时whatever相当于“anything+that”, 意为“任何……的事”。what与what- ever有时可互换,二者区别是whatever语气更强烈。3)whichever用来表示选择,通常前文会提供选择范围。3.连接副词情景导学Why they didn't cme remained unclear.他们为什么不来一直不清楚。When he will arrive desn't matter.他什么时候到无关紧要。Hw it was dne is a mystery.这是怎样做的是一个谜。Where I spend my summer hliday is nne f yur business.我在哪里过暑假不关你的事。
用法归纳　　连接副词引导主语从句时,保留了其疑问词的意思,即why, when, hw, where分别意为 “为什么”“什么时候”“怎样”“在哪里”,在从句中作⑥　　    。二、注意事项情景导学What he has accmplished is admirable.他的成就令人钦佩。What we badly need are dctrs.我们急需的是医生。Whever made this cake is a real artist.制作了这个蛋糕的人是一位真正的艺术大师。That she was chsen caused a tremendus stir in her village.她被挑选上在她的村子里引起很大 轰动。
用法归纳1)当主语是从句时,谓语动词通常用⑦　　    数;what引导的主语从句有时意义上表示复数, 这时谓语动词用⑧　　     数。2)主语从句的语序必须是⑨　　    句语序。三、使用形式主语 it的情况情景导学1It is likely that there will be a snwstrm tmrrw.明天很可能会有一场暴风雪。It is n wnder that he has achieved s much.他取得如此大的成就不足为奇。It is reprted that n passengers were injured in the accident.据报道,在那场事故中没有乘客受 伤。
用法归纳1　　为避免头重脚轻,可以用it作形式主语,而把真正的主语即主语从句移到后面,构成以下 句式:1)It+be+形容词+that从句.(It be necessary/clear/true/strange/imprtant/pssible/likely/...+that从 句.)2)It+be+⑩　　　    +that从句.(It+be+a fact/a gd idea/a pity/a shame/n wnder/ften the case /...+that从句.)3)It+be+过去分词+that从句.(It+be+reprted/hped/thught/expected/said/believed/suggested/... +that从句.)4)It+特殊动词+that从句.(It+desn't matter/makes n difference/...+that从句.)
特别提醒“It+be+形容词/过去分词+that...”句型中,当形容词是imprtant、necessary、strange等时, 主 语从句用虚拟语气,即谓语用“shuld+动词原形”形式,shuld可以省略;当过去分词是表示 建议、命令、要求等的词(如advised、suggested、rdered、required、demanded等)时,主语 从句用虚拟语气,即谓语用“shuld+动词原形”形式,shuld可以省略。情景导学2It is uncertain when he came back. 说不准他是何时回来的。It was clear that my father already had a plan.很明显我父亲已经有了计划。It is nt clear what they want us t d. 我们不清楚他们想要我们做什么。It remained unclear when the market wuld recver fully.仍不清楚市场何时会完全复苏。
用法归纳2　　当主句表示“……是不确定/不清楚的”时,主语从句常用when、why、where、what、 which、wh、whse、hw等引导词来引导;当主句表示“……是确定无疑的”时,主语从句 常用 　　    来引导。
即时巩固讲单句语法填空1. (2022浙江)It suddenly became very clear t me 　　　　    lucky I was t be fluent in tw languages.2.(2021全国甲)It's said 　　　　    histry is written by the victrs, and thse victrs set the standards fr admissin t the genius club. 3.(2021新高考Ⅰ)　　　　     is s breathtaking abut the experience is the ut-f-this-wrld scenes.4.　　　　    she culd cme t help us made us very happy.5.　　　　    started as a traditinal Chinese treatment has becme a majr health trend tday.6.　　　　     is knwn t us all that the ld scientist, fr whm life was hard in the past, still