高中英语人教版Unit4Exploringplants 学案设计

Unit4UsingLanguageFlowersandtheiranimalpollinatorsLearningObjectives:Attheendofthisclass,studentswillbeabletoknowsomethingaboutflowersandtheiranimalpollinatorsbyskimmingandansweringthequestions.knowsomethingaboutnatureandlovenature.前置测评：Words:.＆vi.发展；进展；进化→________________n.演变；进化.缚上；系上；附加.芬芳的；香的.典型的，有代表性的→________________adv..精巧的；脆弱的；微妙的.气味；香味；臭味→________________adj.没有气味的；无嗅的.不鲜明的；阴暗的.发霉的；有霉味的.果味的；（酒）有葡萄味的.对……授粉→________________n.虫媒Phrases:贴上；附上发出(气味、热等);分发课内探究：Part=1\*ROMANISkimming1.BeforeyoureadthetextonPage38,haveaquickglanceatit.Whatisthetextabout?________________________________________________________________________________2.Findthemainideaofeachpart:Threeparagraphs:_________________________________________________________________Pictures:________________________________________________________________________Chart:___________________________________________________________________________Part=2\*ROMANIIScanningParas1-3:AnswerthequestionsQ1:Whatistheadvantageforanimalsofvisitingflowers?________________________________________________________________________________Q2:Whydosomeplantsneedanimals?________________________________________________________________________________doesananimalpollinateaflower?________________________________________________________________________________Q4.Whatkindsofanimalsaremostflowerspollinatedby?________________________________________________________________________________featuresofaflowerareimportantinattractinganimalpollinators?________________________________________________________________________________word“evolve”means_______.A.developB.relyonCinfluenceD.affectChart:TrueorFalse1.Beesfollowcoloredlinestothenectarinsidetheflower.()2.Flowersthatarewhiteorpalecanbeseenbynightpollinators.()3.Butterfliesareattractedtosweet-smellingflowers.()4.Batspollinateflowersatnight.()5.Flowercolorisnotimportanttohummingbirds.()6.Allpollinatorsneedtolandonthefloweriftheyaretofindthenectar.()Part=3\*ROMANIII.Longanddifficultsentences:1).Sopollinationtakesplace,thereforeincreasingthechancesofthesurvivaloftheplantspecies.therefore/thusdoingsth现在分词作结果状语Hisparentsdied,leavinghimanorphan.他父母死了，他成了孤儿。________________________________________________________________________________2).Pollenbecomesattachedtotheanimalduringitsvisittoaflowerandisthenpassedontoanotherplant’sblossomonitsnextvisit.attachto把……附加、系上或缚在……上Heattachedalabeltoeachpieceofluggage.他把每件行李都贴上标签。________________________________________________________________________________3).Throughevolution,mostflowershaveadaptedtoattractspecifictypesofpollinators.adaptto使适应，改编Thespokesmanadaptshisspeechtosuittheinterestsofhisaudience.这个发言人把讲演修改了一下，以适应听众的趣味。Hehasadaptedtotheclimatethere.他已经习惯于那里的气候了。________________________________________________________________________________Part=4\*ROMANIVPost-readingFindothernounsinthechartthatmeanthesameas“smell”.Listadjectivesfromthechartthatareusedtodescribedifferentkindsofsmells.Nounsthatmean“smell”:_________________________.Adjectivesthatdescribesmells:______________________________________________________.Part=4\*ROMANVDiscussion:Ingroups,lookatthepicturesanddecidewhatkindsofpollinatorstheseplantsmighthave.Givereasonsforyouranswers.Part=6\*ROMANVIHomeworkWriteashortpassageaboutflowersandtheiranimalpollinatorsaccordingtowhatwehavelearnedinthisclass.______________________________________________________________________________________________________________________________________________________________________________________________________________________