Unit 4《Exploring plants》课件.ppt

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1、Unit4《Exploringplants》课件A.Themissionariescollectedlargenumbersofspecimens.B.ManyplantcollectorsweresentoncollectingtripstoChina.C.EHWilsoncollectedalargequantityofseedsoftheDoveTree.D.ManyEuropeanplantcollectorscollectednewplantstoWesterngardens.1.Whatisthemainideaoftheninthparagraph?A.in1

2、751,someTreeofHeavenseedsarrivedinEnglandB.in1769,SirJosephBankscollectedvastquantitiesofplantsinthelandnowknownasOceaniaC.in1784,theTreeofHeavenwasintroducedintoNorthAmericaD.between1843and1859,aBritishplantcollector,RobertFortune,madeseveraltripstoChina2.Allofthefollowingstatementsaretru

3、eEXCEPTthat____.3.Whatimprovedthesurvivalratesofplantstransportedlongdistances?A.Plantexploration.B.Botanicalknowledge.C.Seawater.D.TheinventionoftheWardiancase.4.Inthesentence“EuropeanbotanistswereveryexcitedwiththeknowledgethatChinahadavastvarietyofplants.”,whatdoestheunderlinedwordmean?

4、A.领导人B.传教士C.植物学家D.探险家A.braveyoungmengoingonbotanicalexpeditionsfacedmanydangersincludingdisease,near-starvationandsoonB.RobertFortunewastheearliestplantcollectorC.peoplecanfindDoveTreesinEuropeangardensD.manyplantswereintroducedintoothercountriesbeforethe18thcentury5.Fromthepassage,wecanre

5、ferthat__.回答下列问题,然后以约30词概括本单元的第一篇课文的主要内容。1.Whendidtheplantexplorationbeginonalargescale?Itwasnotuntiltheeighteenthandnineteenthcenturiesthattheplantexplorationbeganonalargescale.2.Whoplayedanimportantroleinplantexploration?2.Somemissionariesandplantcollectors.3.Whatwastheresultofplantexplo

6、ration?3.Manyexoticplantsareintroducedintodifferentcountries.4.Whatwasinventedinordertotransporttheplantssafely?4.TheWardiancase.Theplantexplorationbeganonalargescalebetweentheeighteenthandnineteenthcenturies.Somemissionariesandplantcollectorsintroducedmanyexoticplantsintodifferentcountrie

7、swiththehelpoftheWardiancase.Summary:读本单元第一篇课文后,以约120个词简单介绍Rafflesiaarnoldii这种植物。Rafflesiaarnoldiiistheworld’slargestsingleflower.ItgrowslargelyinSoutheastAsia,ontheMalayPeninsula,Borneo,Sumatra,Kalimantan,andthePhilippines.Theseflowershavenoleavesandhardlyany