2018-2019版英语新导学笔记人教版选修六讲义：Unit 4 Period Two
PeriodTwo LearningaboutLanguage&UsingLanguageⅠ.重点单词1．average adj.平均的2．existence n．生存；存在exist v i.存在3．advocate v t.拥护；提倡；主张4．commitment n．承诺；交托；信奉commit v t.犯(罪/错)；承诺，保证；交托5．pollution n．污染；弄脏pollute v t.污染6．growth n．增长；生长grow v．种植；生长7．electrical adj.电的；与电有关的electric adj.电的，用电操作的electronic adj.电子的electricity n．电8．circumstance n．环境；情况9．refresh v t.使恢复；使振作10．contribution n．贡献contribute v t.贡献；捐献Ⅱ.重点短语1．onthewhole大体上；基本上2．onbehalfof代表……一方；作为……的代言人3．makeadifference有影响；起(重要)作用4．putupwith忍受；容忍5．solongas只要6．andsoon等等Ⅲ.重点句式1．特殊疑问词＋todoAsI’mnotsurewheretostart(start) withmyproject，Iwouldappreciateanysuggestionsyoumayhave. 因为我还不清楚我该从哪里着手开始我的研究，所以我会感激你们的任何建议。
2．ifnot如果不是这样ItisOKtoleaveanelectricalapplianceonsolongasyouareusingit—ifnot，turnitoff!只要你在使用电器设备，你便可以把它开着，如果不用就把它关掉！3．Ittakes...todosth.花费……做某事。
Ittakesalotofenergytomake(make) thingsfromnewmaterials，so，ifyoucan，buythingsmadefromrecycledmaterials.用新材料来制作物品要花费大量的能源，因此，只要有可能，就买那些用回收材料制成的物品吧。
Ⅰ.判断正(T)误(F)1．Theauthor (OuyangGuang) thinksthatindividualshavelittleeffectonenvironmentalproblems.(F) 2．Infact，everyone’scontributionmakesadifferenceinprotectingourearth.(T) 3．ItisOKtoleaveanelectricalapplianceonifyouaren’tusingit.(F)Ⅱ.课文阅读理解1．Whatcanwedoaboutglobalwarminginourhouseaccordingto EarthCare? A．Donotuseanyelectricalappliance.B．NeverwatchTV.C．Trytosaveasmuchelectricityaspossible.D．Rideabikeinsteadofusingacar.答案 C2．Accordingto EarthCare，afterdrinkingacola，weshould.A．throwthecanawayB．buyanotheroneC．ignoreitandgoonworkingD．keepthecanforrecycling答案 D3．WhichofthefollowingCAN’Twedotoprotecttheenvironment? A．Persuadeourparentstobuyenergy-savingproducts. B．Informtheknowledgeofglobalwarmingtoothersaroundus. C．Plantasmanytreesaswecanandsaveasmuchwateraspossible. D．Keepthecomputeronallthetimeevenifwedon’tuseit.答案 D 4．FromthefirstletterwecaninferthatOuyangGuangismostprobablya.A．schoolteacher B．schoolboyC．youngparent D．newspaperboy答案 B重点词汇1．Thegreenhouseeffectgivestheearth’ssurfacetheaveragetemperatureof15℃.温室效应使地球表面的平均温度保持在15℃。
(1)Freddywasan average student，butnotan average person.(2017·全国Ⅱ)弗雷德是一个普通的学生，但不是个普通人。
(2)Heisworkinghardandhisgradeisabove(the)averageinhisclass.他学习刻苦，成绩在班里高于平均水平。
(3)On(the/an)average，mensmokemorecigarettesthanwomen.一般来说，男士比女士吸烟多。
2．Iamdoingaprojectonbehalfofmyschoolaboutglobalwarming.我正代表我的学校做一项关于全球变暖的课题研究。
[易混辨析]onbehalfof，represent，standfor※onbehalfof是介词短语。
※represent v．用来表示“代表某人/某个团体(政府等)”“某种标志代表什么”“某物表现的是什么”和“把某人(物)描绘成什么”。
※standfor动词短语，往往用来表示“(字母、数字、符号等)代表什么”。
(1)Iwilltakepartinthesportsmeeting onbehalfof ourschool.＝Iwillrepresentourschooltotakepartinthesportsmeeting.我将代表我们学校参加运动会。
(2)Whatdothelettersontheflagstandfor?这面旗上的字母代表什么？3．Together，individualscanmakeadifference.众人拾柴火焰高。
(1)Hannahisoneofmanyexamplesofyoungpeoplewhoare makingadifference intheworld.汉娜是很多对世界有影响的年轻人榜样中的一个例子。
(2017·北京)(2)Agemakesnodifferencetowhetheryougetthejobornot.你能否得到这个工作与年龄无关。
4．Wedonothavetoputupwithpollution.我们不必去忍受污染。
(1)Thewomanistryingto putaside somemoneyforherson’seducationeverymonth.这个女人每月尽量为儿子的教育攒些钱。
(2)You’dbetteraskyourchildrentoputawayallthetoys.你最好让你的孩子们把玩具全部收起来放好。
(3)HespokesofastthatIcouldn’tputdownwhathesaid.他说得那么快，我根本记不下来他说的话。
(4)Ittookthevillagersabouttwohourstoputoutthebigfire.这些村民花了大约两小时才扑灭大火。
5．Recyclecans，bottles，plasticbagsandnewspapersifcircumstancesallowyouto.如果情况允许的话，把罐头盒、瓶子、塑料袋和报纸回收利用起来。
(1)Underthecircumstances shecoulddonothingbutwait.在这种情况下,她除了等待别无选择。
(2)Undernocircumstancesshouldyoulendhimanymoney.你无论如何都不该把钱借给他。
6．Remember—yourcontributioncounts!记住：你的贡献是很有价值的！(1)Everyoneshould makeacontributiontoprotecting theenvironment.每个人都应为保护环境作出贡献。
(2)Regularexercisewillcontributetoyourhealth.有规律的锻炼会有助于你的健康。
(3)Hehascontributedanumberofarticlestothemagazine.他给这家杂志社撰写了许多文章。
[单句改错](4)ReadingEnglisheverymorningwillcontributetoimproveimproving youroralEnglish.经典句式ItisOKtoleaveanelectricalapplianceonsolongasyouareusingit—ifnot，turnitoff！只要你在使用电器设备，你便可以把它开着，如果不用就把它关掉！(1)Areyouready？Ifso，let’ssetoffatonce.你准备好了吗？如果准备好了，我们立刻出发。
(2)Thegirlseldom，ifever，turnedtoherbrotherforprotection.这个女孩，如果有过，也不经常向她哥哥寻求保护。
(3)Washitinwater，pickoutthesmallparticles，ifany.用清水冲洗它，如果有的话，把小颗粒拣出来。
(4)Shewantstogowithus，ifpossible.可能的话，她想跟我们一起去。
Ⅰ.单句语法填空1．Thisistheoldestbridgeinexistence(exist)．2．Ican’tputupwithsuchhotweatheranylonger.3．Thepresentation(present) ofprizesbeganafterthespeeches.4．Wehaven’tdecidedwhethertogo(go) campingnextweek.5．John’ssuccesshasnothingtodowithgoodluck.Itisyearsofhardworkthathasmadehimwhatheistod ay.6．Heisill，soIwillattendtheceremonyonbehalfofhim.7．Airpollution(pollute) hasreacheddangerouslevelsinsomecities. 8．Ourcountrymadeacommitment(commit) topaying50,000totheRedCross. 9．Youngpeoplehavemadeagreatcontribution(contribute) toChina’seconomicdevelopment. 10．Therainwasheavyyesterdayandconsequently(consequent) theroadswereflooded.Ⅱ.完成句子11．只要你坚持练习，你就不会觉得剪纸难了。
2018-2019版英语新导学笔记译林版选修六讲义：Unit 4 Period Four
Period Four ProjectⅠ.重点单词1．commitment n．承诺，保证；奉献，投入；不得不做的事2．colleague n．同事3．assistant n．助理，助手；adj.助理的，副的assist v．帮助；援助4．vacant adj.空着的，未被占用的；(职位)空缺的5．muddy adj.多泥的，泥泞的mud n．泥土6．shelter n．住所；藏身之处7．crowd n．人群；v i.&v t.挤满，使拥挤，塞满crowded adj.拥挤的8．staff n．全体员工9．barrier n．障碍，隔阂；屏障，障碍物10．interpreter n．口译译员，口译工作者interpret v．口译；解释Ⅱ.重点短语1．inchaos处于混乱状态2．fleeto逃向3．getholdof得到；抓住4．remindsomebodyof让某人想起……，提醒某人……5．belimitedto局限于，仅限于6．thinkbackto回想7．makeadifference有作用(关系、影响)Ⅲ.重点句式1．不定式作结果状语Arrivedheretofindeverythingwasinchaos.来到这里后发现一切都是乱糟糟的。
2．make＋宾语＋宾语补足语Insteadofsandblowingeverywhere，thereismudandwatereverywhere，makingitdifficulttotravelfromplacetoplace.这里没有随处飞扬的沙尘，但到处都是泥浆和水，因此从一个地方转移到另一个地方非常艰难。
Ⅰ.课文阅读理解1．Theauthorarrivedattheislandtofindeverythingwas.A．inorder B．inchaosC．indanger D．ingoodcondition答案 B2．WhileinSudan，theauthorandtheothermembersofthemedicalteamhadacampaignin. A．cities B．villagesC．schools D．hospitals答案 B 3．Howdotheycommunicatewiththelocalpeoplewhenhelpingthem? A．Byspeakingthelocalpeople’slanguage.B．Bysingingordancing. C．ByspeakingEnglishorFrenchorusingactingskills. D．Justbybodylanguage.答案 CⅡ.课文阅读填空Ⅲ.课文阅读简答1．WhydidDoctorswithoutBorders’nursegototheisland? Becauseoftheflood. 2．Writedownthemajorproblemshappeninginthefloodedareas. Lackofmedication，shelter，andfood. 3．Howdoesthenursecommunicatewiththosewhocan’tspeakEnglishorFrench? Throughbodylanguage. 4．InwhatwaysdoesDoctorswithoutBorders’nursehelppeople? Bybeinganurseandbeingapersonlisteningtoandcomfortingothers.重点词汇1．Changingtheworld—mycommitment改变世界——我的义务(1)Onehundredpercent commitment toyourstudieswillleavepreciousmarksonyouryouth.百分百的致力于你的学习会在你的少年时期留下珍贵的印记。
英语新导学笔记人教版选修六讲义：Unit+4+Period+One.doc
TheArcticwillsoonbefreefromice，expertssay.Thechangeissuretotakeplace，butglobalwarmingandclimatechangearechangingtheearth’slandscape(地形) rapidly，causinganxietyworldwide.ExpertssaythattheArcticseaiceismeltingquitefasterthanexpectedanditcanaffectnotjusttheregion ，butEarthingeneral.Ascientistevensaysthatnextyear，ormaybetheyearafterthat，theArcticwillbefreeofice.PeterWadhams，directoroftheScottPolarInstituteinCambridge，said，“MostpeopleexpectthisyearwillseearecordlowintheArctic’ssummerseaicecover.Nextyearortheye arafterthat，IthinkitwillbefreeoficeinsummerandbythatImeanthecentralArcticwillbeice-free.”“YouwillbeabletocrossovertheNorthPolebyship，”headded.Wadhams’studysaysthatmeltingseaicewillhaveagreatinfluenceontheplanetsincetheseaiceism orecapableofreflecting(反射) sunlightcomparedtowaterthatcanonlyreflect10%ofthesunlight.Oncetheseaicemelts，thewatercanonlyreflectasmallamountofsunlight.ThismeansthattheEarthwillreceiveandabsorbmores unlight，makingtheplanetevenhotter.Theyear2016hadalreadybrokenrecordsofthehottesttemperatureeverrecordedandthetrenddoesn ’tseemtoshowanydecreaseinglobalwarming.“Itdoesn’tlookliketheiceishealingandgrowingback，”TomWagner，NASA’smanagersaidinareport.LikeWadhams，scientistsandresearchersallovertheworldarelecturingaroundtoeducatepeopletohelplightenglobalwar mingthathasalreadychangedtheplanet’slandscape.判断正(T)误(F) 1．ThespeedoftheArcticseaicebeingmeltedisbeyondexpectation.(T) 2．TheArcticwon’tbefreefromicesoonbecauseofglobalwarmingandclimatechange.(F)PeriodOne WarmingUp，Pre-reading&ReadingⅠ.重点单词1．consume v t.消费；消耗；耗尽；吃完consumer n．消费者，用户；消耗者2．phenomenon n．现象phenomena n．现象(复数)3．subscribe v i.同意；捐赠；订阅；v t.(签署)文件；捐助4．quantity n．量；数量5．tend v i.趋向；易于；照顾；v t.照顾；护理6．trend n．趋势；倾向；走向7．mild adj.温和的；温柔的；淡的8．consequence n．结果；后果；影响9．state v t.陈述；说明statement n．陈述；声明10．range n．种类；范围11．glance v i.看一下；扫视；n.一瞥12．steady adj.平稳的；持续的；稳固的steadily ad v.平稳地；持续地Ⅱ.重点短语1．comeabout发生；造成2．subscribeto同意；赞成；订购3．quantitiesof大量的4．goup上升；增长；升起5．resultin导致6．beopposedto反对……7．keepon继续Ⅲ.重点句式1．状语从句的省略Thatprobablydoesnotseemmuchtoyouorme，butitisarapidincreasewhencompared(compare) toothernaturalchanges.那或许对你我来说好像不多，但是同其他的自然变化相比较时，就是快速的增长了。
人教版高中英语选修六Unit4 Using Language词汇速记
漫画助记
In normal circumstances,high-speed trains are much faster than regular trains. 正常情况下，高速列车要比普通列车快很多。
allow
allow vt. 准许；容许 allow sb. to do sth. 允许某人做某事 sb. is allowed to do sth. 某人被允许做ow me to drink to your health. 请允许我为你的健康干杯。
contribution n. 贡献
contribution
make contributions to 捐款；做贡献 contribute v. 捐献；造成；投稿
contribute to 有助于；导致；投稿
漫画助记
She has been working on this painting for days. 这张画她已画了好些天了。
You can go out to play as long as you stay in the backyard. 你可以出去玩，只要不出后院。
漫画助记
So long as you don't give up, your dreams will come true. 只要你不放弃，梦想会实现的。
make a difference
make a decision 作决定 make for 向……移动；促成 make a living 谋生；维持生活 make an appointment 预约 make a mistake 犯错误 make no difference 没有关系；没有影响 make a big/a lot of difference 有很大关系 make full use of 充分利用 make up for 补偿；弥补 make good use of 充分利用；很好地使用
2018-2019学年人教版高中英语选修六课件：Unit 4
n.图表；坐标图；曲 线图 n.现象 n.燃料 prep.每；每一
outer
advocate pollution growth
adj.外部的；外面的
vt.拥护；提倡；主张 n.污染；弄脏 n.增长；生长
句型
1.There is no doubt that...“毫无疑问……”：There is no doubt that the earth is becoming warmer... 2．“介词＋关系代词”引导的非限制性定语从句：...the most important one of which is carbon dioxide. 3．even if引导让步状语从句：Even if we start reducing the amount of carbon dioxide... 4．if not“如果不”省略结构：It is OK to leave an electrical appliance on so long as you are using it—if not, turn if off! 5．get...to do...“让……做……”：Get your parents to buy things that are economical with energy...
同意；赞成；订购
大量的 上升；增长；升起 导致 反对…… 即使
on the whole
on behalf of put up with so long as and so on
大体上；基本上
代表……一方；作 为……的代言人 忍受；容忍 只要 等等
温习巩固 global warming depend on run out keep...from compared to 全球气候变暖 依赖；相信；取决 于；由……决定 用完；用尽 阻止……做…… 和……相比 on the one hand...on 一方面……另一 the other hand 方面…… build up make a difference if not get...to do... 增加；增强；建 立 有作用；有影 响；有关系 如果不 让……做……
2018-2019学年高二英语人教版选修6学案：Unit 4 单元小结 Word版含解析
姓名，年级：时间：Refresh Our EnvironmentAs the director stated on behalf of his researchinggroup， the data of this graph makes a clear presentationof the future environmental tendency. On one hand， thequantity of fuel keeps on decreasing by 9% per year while the growth of a wide range of pollution has been a global trend。
On the other hand, the mild but steady going up of the average temperature is resulting in catastrophes like widespread floods。
Without disagreement，they subscribe to the view that it is humans' existence and their random energy consuming that result in this phenomenon。
Many people have a commitment that developing nuclear power or energy from outer space will stop bad consequences coming about。
However, scientists and educators are opposed to this view even if our needs may be met on the whole. They tend to advocate refreshing our circumstances by saving energy and recycling waste. It is suggested that we use energy.saving appliances such as electrical motors， microwaves and so on and not be casual about little things like recycling a can. So please glance around and see what you can do。
2019-2018年人教版高中英语选修六课件：unit4 Workbook(共33张PPT)-文档资料
Answer key for exercise 3: Methods of saving energy:
buy energy-saving goods turn off appliances when not using them
Projects that Millennium Kids have done:
Suggested answers to exercise 1:
1. I think our conference was very successful on the whole. Professor Brown’s presentation was warmly received.
2. There is a wide range of energy sources: coal, oil, natural gas, water power, nuclear power and so on.
8. In recent years, the winter temperature in this region tends to go up, and one of the main reasons which
9. His main contribution to our country is that he suggested on controlling population growth.
11.The existence of life in outer space is still a mystery.
12.Experts said that the global temperature would
Suggested answers ห้องสมุดไป่ตู้o exercise 2:
2018-2019版英语新导学笔记人教版选修六名师公开课精品讲义：Unit 3 Period Three Word版含答案
PeriodThree Grammar—Theuseof“it”(1)课文原句感知1．ItisabeautifuldayhereandIamsittingunderthebigtreeattheendofthegarden. 2．ItseemsamazingthatatmyageIamstillfitenoughtocycle20kilometresinanafternoon. 3．Itismybirthdayintwoweeks’timeandI’llbe82yearsold! 4．Yourmothertellsmethatyoustartedsmokingsometimeagoandnowyouarefindingitdifficulttogiveit up.5．Believeme，Iknowhoweasyitistobeginsmokingandhowtoughitistostop. 6．Thismeansthatafterawhileyourbodybecomesaccustomedtohavingnicotineinit. 7．Asyouknow，ifyoudothesamethingoverandoveragain，youbegintodoitautomatically. 8．Ididn’tknow，forexample，thatitcoulddoterribledamagetoyourheartandlungsorthatitwasmoredifficultforsmokingcouplestobeco mepregnant.一、it作人称代词1．it的最基本用法是作代词，主要指上文提到的事物，以避免重复：Xi’anisabeautifulcity，isn’t it?西安是个美丽的城市，不是吗？2．也可以指动物、婴儿(未知性别的婴儿或孩子)或不明身份的人：—Isthisyourdog?—No，it isn’t.——这是你的狗吗？——不是。
选修六 unit 4单词记忆笔记
选修六unit 4（每日词汇）指人的名词educator[ˈedju:keitə]n.教育工作者；教育家记“意”笔记1：联想背过的单词education教育。
记“意”笔记2：e-向外，出现。
duc引导。
参考introduce介绍；conduct指挥，指导；product产品。
-ate动词后缀。
educate =（把内心的东西）向外引导出来= 教书育人= 教育。
educat-or 做教育的人。
environmentalist[inˌvaiərən'mentlist]n.环境保护论者记“意”笔记1: 联想背过的单词environment环境。
记“意”笔记2：en-进入。
viron-环绕。
-ment,-al,-ist都是后缀。
individual[ˌindiˈvidʒuəl]n.个人；个体记“意”笔记：in-进入；处于……状态。
divid-分开；分离。
-ual 形容词后缀。
in-divid-u-al = 处于分隔开的状态= 个体；个人。
指物的名词appliance[əˈplaiəns]n.用具；工具；器具记“意”笔记：联系单词apply 申请；应用。
变y为i, ance为名词后缀。
appliance = 应用的东西= 工具；用具；器具。
其他相关单词application 申请；应用。
applicant 申请人。
byproduct['baiˌprɔdʌkt]n.副产品记“意”笔记：by-随着；在……一边。
product 产品。
byproduct = 随着主产品出现的= 副产品。
其他相关单词passer-by 过路人。
can[kæn]n.容器；罐头记“意”笔记：can you can a can ? 你能装一个罐子吗？data[ˈdeitə]n.资料；数据记“意”笔记1：联想熟悉的组合big data 大数据。
database 数据库。
记“意”笔记2：比较date日期flood[flʌd]n.洪水；水灾记“意”笔记：fl-指水。
2018-2019版英语新导学笔记译林版选修六讲义：Unit 4 Period One
Allaroundtheworld，anincreasingnumberofpeoplearespendingtheirtimetakingpartinonlinevolunteeringprojects.Whatenc ouragesthemtohelpstrangerswithoutexpectationofmoneyoreventhanks?RadhaTaralekarhelpedteachImeldahowtoprotectherselffromHIV，thoughthetwohavenevermet，andneitherknowstheother’sname.Taralekarreceivednopaymentforthejob.ForTaralekar，theprojectgaveherthechancetouseherprofessionalexperience.“Iwanttoservepeoplewithmymedicalknowledge，”shesaid.Forsome，theinspirationtovolunteeronlinewasfarmorepersonal.Afterlosinghiswifetocancer，TonySelmanspentmanyhoursonlinehelpingCancerResearchtocollectinformationontheillness.“Seeinghowpainfulshewaswhenmywifewasdying，Idecidedtohelpscientistsfindawaytotreatcancer，”hesaid.Interestsandhobbiesarealsooneofthereasons.SamLukjoinedotheronlinevolunteerstotrytohelpth epolicesolvemurdercases.Thepolicepostedthemonline，callingforvolunteerstohelpthemtomakesenseofthemessages.“IaminterestedinthisandIloveSherlockHolmes，”saidLuk.ForwriterClayShirky，somelargeonlinevolunteeringprojectshelpmillionsofpeople，givinghimasenseofachievement.HehelpswriteWikipedia，theworld’sbiggestencyclopedia(百科全书)，whichiswrittenbypeoplewillingtousetheirprofessionalknowledge.阅读短文，判断正(T)误(F)1．WecanknowthatRadhaTaralekarmaybeadoctor.(T) 2．TonySelmandecidedtohelpCancerResearchbecausehiswifewasdeadbecauseofcancer.(T) 3．SamLukvolunteeredtohelpthepolicebecauseofhisdutyofwork.(F) 4．Therearefourreasonswhypeoplehelpstrangersonlinementionedinthetext.(T)Period One Welcome to the unit & ReadingⅠ.重点单词1．lack n．&v t.缺乏2．description n．描写(文字)，形容，说明describe v t.描写3．political adj.政治的；政府的4．worthy adj.令人敬重的；值得的，相称的；有价值的worth adj.有……价值；值得的；n.价值……的东西；意义；作用worthwhile adj.重要的；令人愉快的；值得花时间(或花钱、努力等)5．victim n．受害者6．equal adj.平等的；同等的；n.同等的人；相等物；v t.与……相同或相等7．voluntary adj.志愿的；自愿的；主动的volunteer n．志愿者8．contribute v t.&v i.贡献；捐赠，捐助；促成，导致contribution n．贡献，捐献9．acquire v t.购得；获得，得到10．expand v i.&v t.扩展，发展(业务)；扩大，增强expansion n．扩大，扩张，扩展；膨胀11．urgent adj.紧急的，紧迫的urgency n．紧急，急迫urge v t.敦促，力劝；竭力主张；n.强烈的欲望，迫切的要求12．starvation n．饥饿；挨饿；饿死starve v．饿死，挨饿13．boil v t.&v i.沸腾，煮沸；烹煮14．fetch v t.售得，卖得(某价)；取来，去拿来15．export n．出口产品，输出品；出口，输出；v t.&v i.出口，输出Ⅱ.重点短语1．referto与……相关，涉及；谈及；查阅，参考2．inaddition此外，除……以外(还)3．drawsomeone’sattentionto使(某人)察觉到4．undertheumbrellaof在……的保护下，在……的管理下5．apartfrom(表示除……以外别无)除此之外；(表示除……以外尚有)撇开……来说6．asaresult结果，因此7．bedecoratedwith用……装饰8．providesth. forsb. 给某人提供某物Ⅲ.重点句式1．be＋adj.＋todo... Thislandwasdifficulttofarmbutnowwaterhasbeenpumpedintothefields.这块地曾经很难耕种，但现在可以抽水灌溉了。
英语新导学笔记人教版选修六讲义：Unit+4+Period+Three.doc
PeriodThree Grammar—Theuseof“it”(2)课文原句感知1．Thereisnodoubtthattheearthisbecomingwarmer(seeGraph1) andthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomeno n. 2．ItwasascientistcalledCharlesKeelingwhomadeaccuratemeasurementsoftheamountofcarbondiox ideintheatmospherefrom1957to1997. 3．Theyalsoagreethatitistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbo ndioxide.强调句型中的it：1．肯定句Itis (was)＋被强调部分＋that(who)＋其他部分：Itwas inBeijing that Isawthefilm WolfWarriors.我是在北京看了电影《战狼》。
2．否定句Itis(was) not＋被强调部分＋that(who)＋其他部分Itis(was) notuntil...＋that＋其他部分：Itwasnot forseveralyears that Ihadanopportunityofseeinghimagain.＝Ididnothaveanopportunityofseeinghimagainforseveralyears.我有好几年没有机会再见到他了。
Itwasnotuntil twelveo’clocklastnight that hewenttobed.＝Hedidn’tgotobeduntiltwelveo’clocklastnight.昨晚他12点才去睡觉。