Unit5PeriodUnderstandingideas课件外研版初中英语七年级上册()

UnderstandingideasWhatcanyouknowabouttheplantsfromthevideo?Theplantsalsohavelives(生命).Plants,justlikehumans,alsohavebodyparts.muscle肌肉[ˈmʌs(ə)l]fat脂肪bones骨骼[bəʊn]organ器官[ˈɔːɡən]Whataretheseparts?root根[ruːt]stem茎[stem]leaf叶1Lookatthepictureofaplantandmatchthewordstoit.sugarsunlightleafwatersunlightsugarwaterleaf/ˈkɑ:bəndaɪˈɔksaɪd/[ˈɒksɪdʒən][ˌfəʊtəʊˈsɪnθəsɪs]光合作用光能/ˈkɑ:bəndaɪˈɔksaɪd/二氧化碳['mɪnərəlz]矿物质糖水光合作用，通常是指绿色植物（包括藻类）吸收光能，把二氧化碳和水合成富能有机物，同时释放氧气的过程。光合作用组成

其主要包括光反应、暗反应两个阶段，涉及光吸收、电子传递、光合磷酸化、碳同化等重要反应步骤，对实现自然界的能量转换、维持大气的碳-氧平衡具有重要意义。2Readthepassage.1It'squarterpastseven.Here'sWorkerNo.55inhisgreenuniform.He'sgoingtostartworkintheplant.2HeworksinWorkshop1001intheLeaf.Thereare20to100workersineachworkshop.TheycollectsunlightandCO2,duringtheday.NowworkersfromtheRootsendupwater.ThewaterwillriseuptotheLeafthroughtheStem.ThenworkersintheLeafwillmixwater,CO2,andsunlight.3Whataretheygoingtoproduce?Mostimportantly(forthem),therewillbesugar!It'susefulforthegrowthoftheplant.Anotherproductwillbeoxygen,buttheplantdoesn'tneedmuchofit.Itmeansalottoanimalsandhumans,though-theyneedittobreathe!4Theworkersworkhard.Soonit'sgoingtogetdark.Theywilltakearest.5Therearemillionsofplantsonearth.Theygivemorethanfoodandoxygen.Withoutplants,thenaturalworldwouldbeverydifferent!3Chooseanothersuitabletitleandgiveyourreasons.A.Howtomakesugar

B.Howplantswork

C.Whyplantsaregreat

D.Goingtothegreenworkshop1.howtodosth.怎么做某事2.gotosp.去某地Thinkandshare1.Whatdoes“plant”meaninthetitle?

Inthetitle,“plant”hastwomeanings.Oneisaboutalivingthinglikeatreeorflower.Theotherreferstoa“factory”where“workers”makefoodfortheplantandoxygenforus.2.Inwhatotherwaysdoplantshelp

theworld?

Forclimate:

reducetheeffectofclimate

change...Foranimals:

providefoodandhomesfor

animals...Forpeople:

providefood,

cleantheairandhelp

stopthefloods...教学提示：双关双关（pun）是一种语言现象，指用一个词或一句话，创造出多重理解，增添语言的趣味性和表达的丰富性，使语言更富有感染力。英语中最常见的双关是同音双关和多义双关。（1）同音双关：利用读音相同或相近但意义不同的词语表达不同语意。（2）多义双关：利用一个词的多重含义表达不同语意。例如：Brokenpencilsarepointless.(pointless有“无用的”和“没有尖头的”双重含义)Matchthemainideawitheachparagraph.Paragraph1Paragraph2Paragraph3Paragraph4Paragraph5A.Plantsproducesubstances(物质).B.Howplantswork.C.IntroducetheWorkerNo.55.D.Theimportanceofplants.E.Workersinplantswillhavearest.Whatisthestructureofthispassage?ABC①②③④⑤①②③④⑤①②③④⑤ReadPara.1anddothefollowingtasks.1It'squarterpastseven.Here'sWorkerNo.55inhisgreenuniform.He'sgoingtostartworkintheplant.()1.

It'squarterpastseven.Here'sWorkerNo.55_____hisgreenuniform.A.onB.inC.atD.Of2.改错：Heisgoingtostartingworkintheplant._______3.翻译:

"He’sgoingtostartworkintheplant.”

他即将在工厂开始工作。4.Whattimeisit?

--It’squarterpastseven.(7:30)5.连词成句:uniform/green/He/a/is/wearing

Heiswearingagreenuniform.Astart1It'squarterpastseven.Here'sWorkerNo.55inhisgreenuniform.He'sgoingtostartworkintheplant.1.quarterpastseven七点过15分（7：15）前30分钟用past,表示“几点过几分”

后30分钟用to,表示“差几分到几点”2.in+颜色穿着…颜色的衣服3.begoingtodosth.将要做某事（一般将来时）4.startwork开始工作start+名词/startdoingsth./starttodosth.开始做某事()1.Wheredoeshework?A.IntheRoot.B.InWorkshop1001intheLeaf.C.IntheStem.D.IntheSun.()2.WhatdotheworkersintheLeafcollect?A.Waterandsunlight.B.SunlightandCO₂.C.WaterandCO₂.D.Water,CO₂,andsunlight.3.WhatthreethingsdotheworkersintheLeafmixtogether?--Water,CO₂andsunlight.4.选词填空

1.Please__________yourhomeworktotheteacher'sdesk.2.We__________stampsasahobby.3.Thetraingoes__________alongtunnel.4.They__________theingredients(材料)tomakeacake.5.Shereads__________thenight.ReadPara.2anddothefollowingtasks.throughduringmixcollectsendupBBsendupcollectthroughmixduring4.用括号内单词的适当形式填空：1.He__________(work)inabigfactory.2.They__________(collect)sunlighteveryday.3.Thewater__________(rise)upthroughthestem.5.连词成句1.up/water/The/will/rise/.

--Thewaterwillriseup.2.workers/in/There/many/are/theworkshop/.--Therearemanyworkersintheworkshop.ReadPara.2anddothefollowingtasks.workscollectrises2HeworksinWorkshop1001intheLeaf.Thereare20to100workersineachworkshop.TheycollectsunlightandCO₂,duringtheday.NowworkersfromtheRootsendupwater.ThewaterwillriseuptotheLeafthroughtheStem.ThenworkersintheLeafwillmixwater,CO₂,andsunlight.1.Thereis+单数名词/Thereare+复数名词有…2.duringtheday白天期间3.sendup发送

NowworkersfromtheRootsendupwater.现在，根部的工人正在供水。

sendsth.tosb.=sendsb.sth.送某人某物4.riseup升起…/上升5.ThewaterwillriseuptotheLeafthroughtheStem.水将通过茎上升到叶子。6.each+单数名词每个…

eachof+复数名词…中的每一个ReadPara.3anddothefollowingtasks.()1.Whatisthemostimportantproductfortheplant?A.Oxygen.B.Water.C.Sugar.D.Sunlight.()2.Whoneedsoxygentobreathe?A.Theplant.B.Animalsandhumans.C.Onlyplants.D.Onlyhumans.3.Whyissugarimportantfortheplant?

Becauseit’susefulforthegrowthoftheplant.4.用方框中单词的适当形式填空

1.Factories__________carsandtoys.2.Waterandsunlightareimportantforthe__________ofatree.3.Thenew__________fromthatcompanyisverypopular.4.Fish__________underwaterusingtheirgills(鳃).5.I__________apentowritethisdown.CBgrowthproduceproductneedbreatheproducegrowthproductbreatheneedReadPara.3anddothefollowingtasks.5.用括号内单词的（begoingto+动词原形）形式填空1.They____________________(produce)alotofsugar.2.I____________________(visit)mygrandmothertomorrow.3.What_____you____________________(do)thisweekend?6.连词成句1.alot/means/It/tohumans/.Itmeansalottohumans.2.doesn't/Theplant/oxygen/need/much/.

Theplantdoesn’tneedmuchoxygen.aregoingtoproduceamgoingtovisitaregoingtodo3Whataretheygoingtoproduce?Mostimportantly(forthem),therewillbesugar!It'susefulforthegrowthoftheplant.Anotherproductwillbeoxygen,buttheplantdoesn'tneedmuchofit.Itmeansalottoanimalsandhumans,though-theyneedittobreathe!ReadPara.3anddothefollowingtasks.1.mostimportantly最重要的是…2.Therewillbe….将有…3.It’susefulforsb.todosth.对某人来说做某事有用beusefulfor…对…有用处4.thegrowthoftheplant植物的生长5.needsth.需要某物needtodosth.需要做某事4Theworkersworkhard.Soonit'sgoingtogetdark.Theywilltakearest.ReadPara.4anddothefollowingtasks.()1.Thesungoesdown,anditbecomes__________atnight.A.workB.soonC.darkD.take()2.Themeninthefactory__________everyday.A.workingB.worksC.workD.worked()3.Lookattheclouds!It__________rain.A.willB.goingtoC.isgoingtoD.aregoingto4.连词成句1.hard/The/workers/work/.

Theworkersworkhard.2.will/they/home/go/soon/.

Theywillgohomesoon./Soontheywillgohome.CCC4Theworkersworkhard.Soonit'sgoingtogetdark.Theywilltakearest.ReadPara.4anddothefollowingtasks.1.workhard努力工作2.getdark变黑3.takearest休息ReadPara.5anddothefollowingtasks.()1.HowmanyplantsarethereonEarth?A.Hundreds.B.Thousands.C.Millions.D.Billions.()2.Whatarethetwothingsmentionedthatplantsgiveus?A.Foodandwater.B.Oxygenandwater.C.Foodandoxygen.D.Foodandhomes.3.Whatwouldtheworldbelikewithoutplants?

Thenaturalworldwouldbeverydifferent.4.用方框中的单词填空

1.Weneedtoprotectthe__________environment(环境).2.__________airandwater,wecannotlive.3.Thereare__________ofstarsinthesky.4.Treesandflowersaretypesof__________.5.Peoplefromalloverthe__________cometovisit.millionsnaturalwithoutworldplantsCCnaturalWithoutmillionsplantsworldReadPara.5anddothefollowingtasks.5.用Thereis或Thereare填空1.__________abookonthetable.2.__________manystudentsintheclassroom.6.连词成句1.would/Without/different/water,/be/theworld/.

Withoutwater,theworldwouldbedifferent.2.are/There/on/plants/Earth/millionsof/.

TherearemillionsofplantsonEarth.ThereisThereare5Therearemillionsofplantsonearth.Theygivemorethanfoodandoxygen.Withoutplants,thenaturalworldwouldbeverydifferent!ReadPara.5anddothefollowingtasks.1.millionsof…数百万的….hundredsof…成百上千的thousandsof成千上万的2.onearth在地球上3.morethan超过，多于，不仅仅4.withoutsth.没有某物withoutdoingsth.没有做某事5.bedifferent不同bedifferentfrom…与…不同Completethetextswiththewordsandexpressionsfromthepassage.SunlightandCO2

comeintothe1.________.3._________,CO2andsunlightwillturn

into4._______and

oxygen.Oxygenis

importanttohumans—theyneeditto5._______.Waterfromtherootwill2.________totheleafthroughthestem.leafWaterriseupsugarbreathe4Readthesentencesfromthereadingpassageandsummarizethegrammarrules.(a)He'sgoingtostartworkintheplant.(b)Theywilltakearest.Nowfindmoresentenceswiththesestructuresinthereadingpassage.时态：

一般将来时

结构：begoingto+动词原形

（表达自己打算做某事、计划做某事或者有意做某事）will+动词原形

（描述未来的事情或表达对将来的预测等。will不随人称和主语的单复数变化而变化。）51.Theseeds________growintotallplants.2.We_____________learndifferentpartsofplantstomorrow.3.Theleaves__________changeintodifferentcoloursinautumn.Completethesentenceswiththesimplefuturetense（一般将来时）.willaregoingtowill【注意：一般将来时表示将来某一时刻的动作或状态，或将来某一时间内经常性的动作或状态。】61.differentpartsof…不同的部分2.changeinto变为…Completetheguide’swordsusingthecorrectformofthewordsintheboxes.7背景提示：雨林雨林是一种位于热带和亚热带地区的森林生态系统，以高降雨量和丰富的生物多样性为特点。它们拥有茂密的植被和多层次的树冠结构，栖息着大量的动植物。雨林在调节气候、维护生态平衡和生物多样性方面起着重要作用。大熊雨林（GreatBearRainforest）是世界上最大的温带雨林之一，位于加拿大不列颠哥伦比亚省海岸地区。大熊雨林拥有丰富的植物群落，也是许多动物的家园，如稀有的白色黑熊（灵熊）、灰熊、狼和各种鸟类。Completetheguide’swordsusingthecorrectformofthewordsintheboxes.WelcometotheGreatBearRainforestinCanada!We

.throughtheforesttoday.It'ssunnynow,butpleasetakearaincoat.I'msureit

______later.Thetreesinarainforestcanmaketheirownrain.

How?Well,lookup-way,way,up-andyou

cloudsatthetopofthesetrees.Watercomesintotheairfromtheleaves,andbecomesclouds.Itthenrainsontheforest.This

otherplantsveryhappy.Thesetreescanliveforthousandsofyears.They

animalssomewheretoliveandfoodtoeat...Nowwecanseeplantsaresoimportant.Theymeansomuchtous.givemakerainseewalkaregoingtowalkwillrainwillseemakesgive77()1.WhereistheGreatBearRainforest?A.InChina.B.InCanada.C.InBrazil.D.InAmerica.()2.Whyshouldyoutakearaincoatevenonasunnyday?A.Becauseitisalwayscold.B.Becausethetreeswillmakerain.C.Becauseyoumightgoswimming.D.Becauseitissnowinglater.3.Whattwothingsdothetreesgivetoanimals?

Somewheretoliveandfoodtoeat.4.选择适当的单词填空

1.Inautumn,the__________ofthetreesturnyellowandred.2.Thereare__________ofbooksinthelibrary.3.Itis__________todrinkenoughwatereveryday.4.Wewentforawalkinthe__________andsawmanybirds.5.Takeyour__________;itlookslikeit'sgoingtorain.

thousandsimportantraincoatleavesforestBBleavest