Unit5RevealingnatureUsingLanguage课件高中英语选择性

Unit5Revealingnature

Usinglanguage1.declaredeclare...(tobe...) declarewaron... declarethat... declaresth.illegal declareindependencefromdeclareoneselftobe... Itisdeclaredthat... 练习：Theworkersdeclared_______theofferofincreasedpayandholidays.Vocabulary

for宣布/宣称……(为……)向……宣战宣布/宣称……宣布……非法宣布摆脱……独立宣称自己……据宣布……2.blameblamesb./sth.forsth. Blamesb.for(doing)sth. take/accepttheblame(forsth.)put/lay/placetheblameonsb. theblamelieswithsb.

练习：Mariestillblamesherself_______Patrick'sdeath.Vocabulary

for把某事归咎于某人/某物因(做)某事而责备某人承担(某事的)责任把责任归于某人责任在于某人3.declinedeclineby... declineto... declinein... declinetodosth.

练习：Carsaleshavedeclined_________aquarter.Vocabulary

by减少了……减少到……在……方面降低拒绝做某事4.beharmfultodoharmtosb./sth.=dosb./sth.harmcausesb./sth.harm sufferharm domoreharmthangood thereisnoharmindoingsth. meannoharm/notmeananyharm

练习：Trytoreducetheuseofchemicalsthatare_________(harm)totheenvironment.Vocabulary

harmful对某人/某物有害对某人/某物造成伤害受到损害弊大于利不妨做某事，做某事没有坏处无意伤害没有恶意5.behometomakesb.feelathome befeelathome makeyourselfathome findahomeforsth. hit/strikehome (both)athomeandabroadmakeoneshome 练习：Warwickishome_________some550internationalstudents.Vocabulary

使某人感到宾至如归舒适自在，不拘束别拘束找地方安置某物(言语等)正中要害；使人接受(或认清)现实在国内外定居，居住to1PARTONELeading-inDoActivity1onPage70.Lookatthesentencesfromthereadingpassageandanswerthequestions.Insentence(a),whichactionhappenedfirst,"suspected"or"evolvedfromacommonancestor"Insentence(b),whichactionhappenedfirst,"refusedtobelieve"or"evolvedfromlowerformsoflife"?Whatdoesthestructurehaddoneindicate?Suggestedanswers:Insentence(a),"evolvedfromacommonancestor"happenedfirst.Insentence(b),"evolvedfromlowerformsoflife"happenedfirst.Itindicatestheactionhappenedbeforeacertainpastaction.2PARTtwoPresentationShehadworkedfortwelvehoursby8:00p.m.ShehadlearnedEnglishbeforeshecametoBritain.Bytheendoflastmonth,wehadfinishedhalfoftheproject.Lookatthefollowingsentences.Whatcanyoufind?构成：had+过去分词标志性时间状语Pastperfect——过去完成时构成：过去完成时由“助动词had(通用于各种人称和数)+过去分词”构成。用法：①表示在过去某一时间或某一动作之前已经完成的动作或存在的状态②过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去③与过去事实相反的虚拟条件从句④固定句型⑤未曾实现的希望、打算、意图、诺言、想法等区分：①与现在完成时的区别②与一般过去时的区别过去完成时表示在过去某一时间或某一动作之前已经完成的动作或存在的状态。Ihadfinishedmyhomeworkbeforesupper.我在晚饭前就把作业做完了。还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或还要持续下去，常用的时间状语有bythen，bytheendof等。Bytheendoflastweek,shehadlearned10Englishsongs到上周为止，她已经学习了10首英文歌曲。用法用于表示与过去事实相反的虚拟条件从句中。Ifhehadseenyouyesterday,hewouldhaveaskedyouaboutit.假如他昨天看到你，他就会问你这件事了。过去完成时也用于hardly...when...，nosooner…than...，Itwasthefirsttime+that(从)等一些固定句型中。Hehadnosoonerlefttheroomthantheybegantotalkabouthim.他刚离开房间，他们就议论起他来。用法表示未曾实现的希望、打算、意图、诺言、想法等，常用过去完成时。Ihadhopedtoseeheragain.我本希望再见她一面。(没能如愿)用法过去完成时与现在完成时的区别现在完成时表示的动作发生在过去，以现在的时间为基点，但侧重对现在产生的结果或造成的影响，与现在有关，其结构为“助动词have(has)+过去分词”；过去完成时则是一个相对的时态，以过去时间为基点，它所表示的动作不仅发生在过去，更强调“过去的过去”，只有和过去某时或某动作相比较时，才用到它。Ihavelearned1,000Englishwordssofar.到目前为止我已经学会了1000个英语单词。Ihadlearned1,000Englishwordstillthen.到那时为止我已经学会了1000个英语单词。区分过去完成时与一般过去时的区别(1) 时间状语不同:过去完成时在时间上强调“过去的过去”，而一般过去时只强调过去某一特定的时间。比较：Theyhadarrivedatthestationbytenyesterday.他们昨天十点之前就已经到达车站了。Theyarrivedatthestationattenyesterday.他们昨天十点到达车站。区分过去完成时与一般过去时的区别(2) 在没有明确的过去时间状语作标志时，谓语动词动作发生的时间先后须依据上下文来判断：先发生的用过去完成时，后发生的则用一般过去时。Shehadjustwonthefirstprizeinthecompositioncompetition.Shewasveryhappy.Herwholefamilywerepleasedwithher,too.她刚刚在作文竞赛中获得了一等奖。她很高兴，她的所有家人也对她感到满意。区分3PARTthreePractice完成练习，及时巩固Exercise:We____________(paint)thehousebeforewe_______(move)in.Paul_______(go)outwithJaneafterhe__________(make)aphonecall.3)Tom_______(say)he__________(read)thebooktwice.hadpaintedmovedwenthadmadesaidhadreadExercise:4)他说自从1989年以来他就在那家工厂工作。Hesaid____________________________since1989.5)我认为我一星期前就把信寄出去了。Ithought_____________________aweekbefore昨晚九点之前我已看完这本小说了。______________________________bynineo'clocklastnight.hehadworkedinthatfactoryIhadsenttheletterIhadfinishedreadingthenovelDoActivity2onPage70.Completetheparagraphswiththeinformationfromthegivensentences.Thesentencesareintheorderinwhichtheyhappened.Theycanhelpyoutodecidetheuseoftenses.beganhadledto

developedchosetohad

madeDoActivity3&4onPage71.①Completetheonlineencyclopaediaentrywiththecorrectformofthewordsinthebox.arrivedhadlivedeatenhadintroducedcompeteddeclinedDoActivity3&4onPage71.②WorkinpairsActoutarole-playusingtheinformationinActivity3.OneofyouwilllaythekeeperofLonesomeGeorge,andtheotherwillplaythereporteraskingaboutGeorge.Usethepastperfecttensewhereappropriate.4PARTfourProduction完成练习DoActivity5onPage71.Listentothepodcastandchoosethestatementsthataremade.①Biodiversityisimportant.②Bacteriaarealwaysharmfultohumans.③Somespeciesofbacteriaareusedinfoodproduction.④Manyspeciesofbacteriarecycledeadorganicmatter.⑤Ourimmunesystemsareabletofightoffallgerms.Suggestedanswers:③④DoActivity6onPage71.Listenagainandcompletethefactsheet.Suggestedanswers:madeupofcells Bricksthatareusedtobuildhousesthirtytrillion Thirty-ninetrillionhelpwithdigestion BreakdownDoActivity7onPage72.Completetheboxeswiththeexpressionsfromthepodcast.Doyouknowabout…?Haveyouheardof…?Bytheway,…Actually,…Infact,…Speakingofwhich,…DoActivity8onPage72.Readthepassageandanswerthequestions.①Whatspeciesarementionedandwhatisspecialaboutthem?②Whatotherunusuallifeformsdoyouknowof?Suggestedanswers:①Twospeciesarementioned:thebluewhaleandthewaterbear.ThebluewhaleisthelargestanimalspeciesonEarth，whichcangrowuptoalmost30metresinlengthandweighover130,000kilos.Thewaterbearisprobablythetoughestspecies，whichcansurvivetemperaturesfrom150Ctoabelowfreezing-272℃.DoActivities9&10onPage73.①Completetheparagraphswiththecorrectformofthewordsandexpressionsinthebox.Suggestedanswers:1.ishometo2.Arenativeto3.scientific4.Habitats5.Ecosystem6.Appearance7.primitive8.AncestorDoActivities