教材文本 unit 4 reading and discussing的练习

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1、Unit4Exploringplants2Nowreadthetextandanswerthequestions.1Whatistheadvantageforanimalsofvisitingflowers?2Whydosomeplantsneedanimals?3Howdoesananimalpollinateaflower?4Whatfeaturesofaflowerareimportantinattractinganimalpollinators?5Whatisnectar?6Whatkindsofanimals

2、arcmostflowerspollinatedby?3Arethesestatementstrueorfalse?TrueFalselBeesfollowcolouredlinestothenectarinsidetheflower.□□2Flowersthatarewhiteorpalecanbeseenbynightpollinators.□□3Butterfliesareattractedtosweet—smellingflowers.□□4Batspollinateflowersatnight.□□5Flow

3、ercolourisnotimportanttohummingbirds.□□6Allpollinatorsneedtolandonthefloweriftheyaretofindthenectar.□□4Findothernounsinthechartthatmeanthesameas“smell”.Listadjectivesfromthechartthatareusedtodescribedifferentkindsofsmells.Nounsthatmean“smell”:___________________

4、______________Adjectivesthatdescribesmells:_____________________________5Ingroups,lookatthepicturesanddecidewhatkindsofpollinatorstheseplantsmighthave.Givereasonsforyouranswers.AnswerkeyforExercise1：Thetextisaboutflowersandtheiranimalpollinators.Thepicturesshowd

5、ifferentkindsofanimalpollinatorsandtheirflowers.Thechartlistsanimalpollinatorsandthecharacteristicsoftheflowerstheypollinate.SuggestedanswerstoExercise2：1Animalsgetfoodcallednectarfromtheflowers.2Someplantsneedanimalstopollinatethem.3Ananimalpollinatesaflowerbyc

6、ollectingpollenfromaflowerandpassingitontoanotherflower.4Thefeaturesofaflowerthatareimportantinattractinganimalpollinatorsareitscolour,shape,sizeandsmell.5Nectarisasweetliquidproducedbyflowersandcollectedbybees.6Mostflowersarepollinatedbybees,mothsandbutterflies

7、.AnswerkeyforExercise3：1T2T3F4T5F6FAnswerkeyforExercise4：Nounsthatmean“smell”：odourperfumeAdjectivesthatdescribesmells：delicate,fragrant,odourless,strong,sweet,musty,fruitySuggestedanswerstoExercise5：Note：Studentsdonotneedtoknowthenamesoftheflowersthatarefeature

8、donpage39butforyourinformation,theirEnglishnamesare：AcactusflowersBfuchsiasCPeruvianliliesDunidentifiedpurpleflowersEchrysanthemumsFhibiscusGwildgingerflowerHJohnnyju