Unit 5 The power of plants Period 3 Grammar教学课件外研版英语七年级上册

Unit5ThePowerofPlants外研版(七年级上册)GrammarUsekeyexpressionsandthesimplefuturetensecorrectlytomakeaplanforPlantingDay;Realiseandspreadtheimportanceofplants;Plantodosomethingusefulforourmothernature.学习目标010203新课讲授Tellmeyourproblem____chasethemaway____beyourlighthouse____makeitokayWhenIseeyourmonsters____standtheresobraveandchasethemallawayWatchandfillintheblanks.I’llI’llI’llI’llReadthesentencesfromthereadingpassageandsummarisethegrammarrules.1(a)He’sgoingtostartworkintheplant.(b)Theywilltakearest.begoingto+动词原形will+动词原形Pleasefindmoresentenceswiththesestructuresinthereadingpassage.Simplefuturetense一般将来时begoingto+动词原形1.Whataretheygoingtoproduce?2.Soonit’sgoingtogetdark.will+动词原形1.ThewaterwillriseuptotheLeafthroughtheStem.2.ThenworkersintheLeafwillmixwater,CO2andsunlight.3.Mostimportantly(forthem),therewillbesugar!4.Anotherproductwillbeoxygen,buttheplantdoesn’tneedmuchofit.Moresentenceswiththestructures概念一般将来时表示将来某个时间要发生的动作或状态，或将来经常发生的动作或状态。一般将来时句式结构1.Iwilltakeaphototomorrow.2.Iamgoingtotakeaphototomorrow.结构：主语+begoingto+动词原形+其他

主语+will+动词原形+其他

否定句：1.主语+be+not+goingto+动词原形+其他

2.主语+will+not+动词原形+其他

1.Iamgoingtoplayfootball.→Iamnotgoingtoplayfootball.2.Shewillplaythepiano.→Shewillnotgoingtoplaythepiano.

疑问句：Be+主语+goingto+动词原形+其他?Yes,主语+be./No,主语+be+not.Iamgoingtoplayfootball.→Areyougoingtoplayfootball?肯定回答：Yes,I’m./否定回答：No,I’mnot.疑问句：Will+主语+动词原形+其他?Yes,主语+will./No,主语+will+not.Shewillplaythepiano.

→Willsheplaythepiano?肯定回答：Yes,shewill./否定回答：No,shewon’t.特殊疑问句：特殊疑问词+一般疑问句?Iamgoingtotheparknextweek.(划线提问）→When

areyou

goingtothepark?Iwillgototheparknextweek.(划线提问）→What

willyoudonextweek?1.begoingto的用法(1)表示事先经过考虑、安排好打算、计划要做某事。DadandIaregoingtowatchanoperathisafternoon.今天下午我和爸爸打算去看歌剧。(2)表示根据目前某种迹象判断，某事非常有可能发生，表示推测。Look!Therecomethedarkclouds.Itisgoingtorain.瞧！乌云密集。天要下雨了。will+动词原形与am/is/aregoingto+动词原形的用法虽然都表示将来发生动作或情况，一般情况下能互换。但它们的用法是有区别的。用法区别2.will的用法(1)表示主观意愿的将来。Theywillgotovisitthefactorytomorrow.明天他们将去参观工厂。(2)表示不以人的意志为转移的客观的将来。TodayisSaturday.TomorrowwillbeSunday.今天是星期六。明天是星期日。(3)表示临时决定，通常用于对话中。—Maryhasbeenillforaweek.玛丽病了一周了。—Oh,Ididn’ttknow.Iwillgoandseeher.噢，我不知道。我去看看她。标志词1.tonight今晚，soon不久，inthefuture在未来2.tomorrow系列：tomorrowmorning,tomorrowafternoon,tomorrowevening,thedayaftertomorrow等。3.next系列：nextweek,nextmonth,nextyear等。4.in+段时间（对其提问用howsoon,“多久以后”）inafewdays,inthefuture,inamonth等。现在进行时可表示计划或准备要做的事。如：Mybrotherisswimmingtomorrow.Jennyisonholidaynow.Iwanttoknowwhensheiscomingback.现在进行时表示将来2Completethesentenceswiththesimplefuturetense.1.Theseeds

growintotallplants.2.We

learndifferentpartsofplantstomorrow.3.Theleaves

changeintodifferentcoloursinautumn.willaregoingtowillCompletetheguide’swordsusingthecorrectformofthewordsintheboxes.3givemakerainseewalkWelcometotheGreatBearRainforestinCanada!We1____________________throughtheforesttoday.It’ssunnynow,butpleasetakearaincoat.I’msureit2___________later.Thetreesinarainforestcanmaketheirownrain.

How?Well,lookup-way,way,up-andyou3________cloudsatthetopofthesetrees.Watercomesintotheairfromtheleaves,andbecomesclouds.Itthenrainsontheforest.This4________otherplantsveryhappy.

Thesetreescanliveforthousandsofyears.They5________animalssomewheretoliveandfoodtoeat...

Nowwecanseeplantsaresoimportant.Theymeansomuchtous.willrainwillseemakesgivearegoingto/willwalk4Workinpairs.DiscussyourplanforPlantingDay.UsethewordsandexpressionsfromthereadingpassageandtheUsefulexpressionstohelpyou.Withoutplants,…will/won’t……meanalotto……isusefulfor……need…to……canmake……givemorethan…MyplanforPlantingDayTheimportanceofplantsMoreplantswillmake:theanimals:_________________________________________________thepeople:_________________________________________________Thingstodo

Iamgoingto______________________________________________________________________________________________________________________________________________________________________A:PlantingDayiscoming.Let’sdosomething.B:Yes,plantsmeanalottous.Withoutthem,animalswilllosetheir

homes.Wewon’thavefoodorcleanair.A:Plantscanalsoinfluencetheclimate.B:SowhatareyourplansforPlantingDay?A:Iamgoingtoplantthreetrees.Let’salsomakea“GreenCorner”for

ourclassroom.B:Soundsgreat!Sample当堂检测用所给单词的正确形式填空。1.Don’tworry.I___________(help)youwithyourscienceproject.2.Lookatthedarkclouds!It______________(rain)soon.3.Thestudents_______________(do)anexperimentinthelabnextMonday.4.Sheissotired.She__________________(take)ashortbreak.5.Ithinkit__________(be)rainylater.Takeyourumbrell