高中英语外研版 (2019)选择性必修 第二册Unit 5 A delicate world授课课件ppt
展开这是一份高中英语外研版 (2019)选择性必修 第二册Unit 5 A delicate world授课课件ppt,共39页。PPT课件主要包含了重点短语,重点句式,重点语法,it作形式宾语 ,it ,重点词汇,随堂练习,图解记忆 ,What,providing 等内容,欢迎下载使用。
Ⅰ.知识体系图解重点词汇
1. v.(使)溶解 2. n.养分,营养物 3. n.蠕虫;(昆虫的)幼虫 4. n.物种 5. n.问题 6.shelter n. 7.enclsed adj. 8.release v. 9.prey v. 10.decmpser n.
disslve nutrient wrmspecies issue
避难所 围住的,封闭的 释放 捕食,掠夺 分解者
1. 由于 2. 依靠;依赖 3. 也;和 4. (机器等)出故障;破裂 5. 吸收;领会 6. 对……负责 7. 有助于,捐献
due t rely n as well asbreak dwn take in be respnsible frcntribute t
9.keep a pet 10.feed n 11.prey n 12.the fd chain 13.in existence 14.live n
把……从……解脱出来 养宠物 以……为食 捕食;掠夺 食物链 存在 以……为生
Withut bees,humans wuld die ut.
Ⅱ.用适当的词填空1. is reprted that he gt seven gld medals. 2.I find difficult t d the jb well. 3.I think best that yu shuld stay here. 4.We think n use cmplaining.
Ⅲ.翻译句子1.他们认为在这么短的时间内完成这项工作是困难的。2.她觉得帮助我们是她的责任。3.我认为被邀请在这发言是我的荣幸。4.他发现和他辩论没有用。5.我负责使一切都及时准备好。答案:1.They felt it difficult t finish the wrk in such a shrt thinks it her duty t help us.3.I think it my hnur t be invited t speak fund it useless (n use) arguing with him.5.I’ll see t it that everything is ready in time.
1.Prducers absrb water and disslved nutrients frm the sil.生产者从土壤中吸收水分和溶解的营养物质。(p.54)【词汇精讲】absrb为动词,意为“吸收;理解;吸引”。Plants absrb carbn dixide.植物吸收二氧化碳。It’s difficult t absrb s much infrmatin at nce.一下子理解这么多信息很困难。This jb had absrbed him fr several years befre he acquired it.在他获得这个工作前,他已经被这个工作吸引好多年了。
【词汇拓展】absrbing adj.引人入胜的,十分吸引人的be absrbed in全神贯注于……This is an absrbing bk.这是一本引人入胜的书。Time passes quickly when yu are absrbed in reading.当你专心阅读时时间过得很快。
2.Primary cnsumers rely n vegetatin t prvide energy.初级消费者依靠植物提供能量。(p.54)【词汇精讲】rely是动词,意为“依靠;依赖;指望”。He can rely n my supprt when he meets difficulties.当他遇到困难时,他可以依靠我的支持。He can’t be relied n t tell the truth.不能指望他说真话。
【词汇拓展】rely n sb.t d sth.指望/相信某人会做某事rely n (ding) sth.依赖/信任/指望(做)某事rely n it that...相信……;指望……reliable adj.可信赖的;可靠的I knw I can rely n yu t srt it ut.我相信你会把它整理好的。Many peple nw wuld rely n surfing the Internet rather than read newspapers fr news.现在很多人宁愿依靠上网浏览新闻也不愿读报纸。Yu may rely n it that she wn’t be late.你尽管放心,她不会迟到的。
3.Decmpsers break dwn dead animal and vegetable matter int nutrients.分解者分解死去的动物和植物,形成营养成分。(p.54)【词汇精讲】break dwn(机器)出故障;(计划、希望、谈判等)失败;身体垮掉;分解
He said his cmputer had brken dwn,s he culdn’t hand in his hmewrk.他说他的电脑出故障了,所以他无法上交作业。She was nt herself.She brke dwn.她身体不舒服,身体垮掉了。The plastic bags break dwn int pisnus materials.塑料袋分解成了有害物质。
【词汇拓展】break away frm脱离(政党)break in打断(谈话);插嘴;破门而入break int强行闯入;撬开(汽车等)break ut (战争、火灾等)爆发break thrugh突破;穿透break up分散;拆散;结束;(关系等)破裂They have escaped t America shrtly befre the war brke ut in 1939.1939年战争爆发前不久他们逃到了美国。Scientists think they are beginning t break thrugh in the fight against cancer.科学家认为他们在对抗癌症的战争中开始有所突破。
【微写作】The war brke ut.The plice used tear gas t try t break up the victims,but they brke away frm the plice and even sme f them brke int the city gvernment.
take in nutrients frm the sil...它们……吸收了土壤中的营养物质……(p.54)【词汇精讲】take in意为“包括;领会;理解;欺骗;收留;收养;吸收”。Althugh absrbed in the lessn,he still culdn’t take it in.虽然专注听讲,他依然不能理解。He was hmeless,s we tk him in.他无家可归,我们便收留了他。Fish take in xygen thrugh their gills.鱼通过鳃摄取氧。
【词汇拓展】take apart拆开;拆散take care f照料;保管take dwn拿下;取下;拆卸;记下take ver继承;接收;接管take ff脱下(衣服等);起飞;大获成功take n承担;呈现take up开始从事;占用(时间或空间);着手处理;接受;继续With technlgy’s develpment,the car tk ver frm the hrse.随着技术的发展,汽车代替了马。We eventually tk ff at 10:00 and attended the meeting in time.我们终于于十点起飞,及时地参加了会议。
Withut bees,humans wuld die ut.没有蜜蜂的话,人类会灭绝。(p.55)【句型分析】该句子中withut引导了隐性的虚拟语气。Withut war in the wrld,peple wuld live a mre happy life.如果世界上没有战争,人们会生活得更幸福。
【拓展延伸】(1)通过句子的逻辑关系或一些词、短语等暗示出来的虚拟语气常见的还有:but fr。But fr yur help,I wuldn’t have passed the driving test.要不是你的帮助,我就不会通过驾驶考试。(2)省略if的虚拟语气:有were,had,shuld等词时,可以省略if,将were/had/shuld等移至句首。Were he here,he wuldn’t let yu leave.如果他在这儿,他就不会让你离开。Had yu studied harder last term,yu culd have passed the exam.如果上学期你更加努力学习,你考试就会及格了。
it作形式宾语的用法一、基本用法当不定式、动词-ing形式、从句等复杂成分用作宾语且其后跟有宾语补足语时,通常会在宾语补足语前使用形式宾语it,而将真正的宾语移至句末,其基本结构为“动词+it+宾语补足语+不定式(动词-ing形式或从句)”:1.it代替不定式短语。think/find/feel/cnsider/make/regard...+it+形容词/名词+不定式短语I find it pleasant t wrk with him.我发现和他一起工作很令人愉悦。
2.it代替动词-ing短语。这只限于少数句型,在多数情况下用不定式更多一些。The prfessr cnsiders it n gd reading withut understanding.这位教授认为阅读而不理解没有益处。3.it代替宾语从句We all thught it a pity that the cnference shuld have been cancelled.会议取消了我们都感到很遗憾。
二、几种特殊的形式宾语通常意义的形式宾语主要见于真正宾语为不定式、动词-ing形式、从句等且其后跟有宾语补足语时的情形,即用于“动词+it+宾语补足语+真正的宾语”这样的结构,但以下几类形式宾语却比较特殊,其后没有宾语补足语。1.动词+it+that-从句I like it that yu came.你来了,我很高兴。I take it (that) he will cme n time.我认为他会准时来的。Yu can put it that it was arranged befre.你可以说这是以前安排的。Rumr has it that the defense minister will sn resign.据传闻,国防部部长不久就要辞职。【温馨提示】能用于此结构的动词常见的有: have,take,put,like等。
2.动词+it+when (if)-从句I dislike it when yu whistle.我不爱听你吹口哨。We really appreciate it when she ffered t help.她来帮忙了,我们十分感激。I’d prefer it if I didn’t have t d s much wrk.要是我不必做那么多工作,那就太好了。【温馨提示】能用于此结构的动词常见的有:enjy,hate,lve,like,dislike,appreciate,prefer 等。
3.动词+prep+it+that-从句See t it that yu’re nt late again.注意千万不要再迟到。Lk t it that this desn’t happen again.注意不要再发生这种事。I can’t answer fr it that he will cme.我不能保证他会来。Yu may rely n it that he’ll cme t meet yu.你放心,他会来见你的。【温馨提示】能用于此结构的动词(短语)常见的有:see t,lk t,insist n,stick t,depend n,answer fr 等。
4.动词+it+介词短语+that-从句I we it t yu that I am still alive.多亏有你我才仍然活着。I tk it fr granted that he wuld help us.我理所当然地认为他会帮助我们。【温馨提示】能用于此结构的动词常见的有:take it fr granted,bring it t sb.’s attentin,we it t sb.等。
Ⅰ.单词拼写1.Many s are in danger f dying ut because f ur destructin f their natural habitat. 答案:species2.I think the nly way t e fear is t g straight frward. 答案:escape3.Nwadays,mre and mre waste gas is r int the air. 答案:released4.T write a gd essay,yu shuld chse a wrds and expressins. 答案:apprpriate
5.Once the rivers are plluted,it takes many years fr the e in them t recver. 答案:ecsystem 6.Frm time t time peple suggest that e animals shuld be brught back t life thrugh clning. 答案:extinct7.It’s rude t make a remark n the a f thers. 答案:appearance
Ⅱ.翻译句子1.人们把在母亲节给母亲买礼物当成了一个规矩。答案:Peple make it a rule t buy presents fr their mthers n Mther’s Day.2.我认为不记单词掌握一门外语是不可能的。答案:I dn’t think it pssible t master a freign language withut remembering wrds.3.你负责把行李带回来。答案:Yu see t it that the luggage is brught back.4.我认为你没有告诉他这个坏消息是正确的。答案:I think it right that yu didn’t tell him the bad news.5.他感觉为人类的权利和进步而奋斗是他的责任。答案:He felt it his duty t fight fr human rights and prgress.
Ⅲ.语法填空 Dubai was a 6,000-persn fishing village half a century ag.Since 1966,when il was discvered there,the ppulatin f Dubai has grwn 1. 2.6 millin.Over the years,it has becme a well-knwn turist destinatin. 2. attracts turists t Dubai are tax-free shpping,dry weather,excellent accmmdatins,delicius fd and beaches that g n fr miles.In fact,sme freigners cme here nly 3._____________ (experience) the shpping.There are dzens f shpping malls,4. (prvide) every famus brand yu can name.Thse utdr markets sell everything frm spices (香料) t gld at fair prices.
t experience
相关课件
这是一份外研版 (2019)选择性必修 第二册Unit 2 Improving yourself教学演示课件ppt,共44页。PPT课件主要包含了重点短语,重点句式,重点语法,重点词汇,随堂练习等内容,欢迎下载使用。
这是一份英语选择性必修 第二册Unit 3 Times change!备课ppt课件,共28页。PPT课件主要包含了重点短语,重点句式,重点语法,重点词汇,随堂练习等内容,欢迎下载使用。
这是一份高中英语Unit 4 Breaking boundaries图文ppt课件,共25页。PPT课件主要包含了重点短语,重点句式,it作形式主语 ,to teach,that,重点词汇,重点语法,随堂练习等内容,欢迎下载使用。