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1、Unit4Exploringplants目标认知重点词汇：scale,appeal,postpono,evolve,confliet,attach,restrietion,fluency,datebackto，giveout重点句型：not...until句型语法：宾语精讲巧练重点词汇scale【原句回放】However,itwasnotuntiltheeighteenthandnineteenthccnturiesthatthoexplorationofthebotanicalworldbeganonalargescale.(P32)【点拨】scalen.thesizeofsth.,esp
2、eciallywhenitisbig意为"大小，规模〃，onalargescale表示〃规模宏大的〃，还表示〃等级；比例，尺度〃如］:Anypublicdemonstrations(游彳亍)onalargescalewithoutthepermissionofthecityauthoritiesisantisocial•Thescaleofthismapisonecontimetertothokilometer.Amachineforweighingpeoplehasascalefromonepoundto300poundsonit.【拓展】scales表示"称，天平"；scale也用作动词
3、，表示"攀越，爬越"，短语：scaleup/down按比例逐步增加/减少，女口：Studentsscaledan8-footfencetoenterthetheatre.Suchabigordermeanssealingupourproductioncapacity.［随时练］Withtheopportunitytosurvivebecomingsmall,thesearchoperationhasbeenscaleddownslowlyotpresent.A.hasbeenscaleddownB.isbeingscaleddownC.scaledupD.isscalingupKey:Bco
4、nflict【原句回放】Braveyoungmontooktheopportunityofgoingonbotanicalexpeditions,oftenfacingmanydangersincludingdisease,•••andconf1ictswiththelocalpeople.(P32)【点拨】conflictn.angrydisagreementbetweenpeopleorgroups表不"冲突/争端"，常与介词between/over连用,beinconf1ictwithsb.表示〃与某人处于争执中〃oconflict也用作动词，表示〃冲突；争执"如：Thereisaco
5、nflietbetweenthetwosidesofhispersonality.Sheisinconflictwithheremployeroversicknesspay.Thetwostoriesconflicted,soIdidnotknowwhattobelieve.【拓展】区别conflict,fight,struggle都含〃战斗"、"斗争"的意思。①conflict指"由于严重不一致，而弓
6、起抵触或中突〃，如：Theiraccountofthecausesofthewarconflictswithours.他们对于战争起因的报告与我彳门的报告相反。②fight原义是"打仗"、"
7、战斗"，指〃任何形式的斗争〃，特别强调〃短兵相接"，如：Thetwoboysfought.两个孩子动手打起来了。③struggle本义是〃挣扎"，指〃克服某种障碍或困难，以达到某种目的",意味着"处境难〃，如:Theywerestrugglingforpeace.他们为和平而斗争。［随时练］Indealingwithpublicrelations,weshouldmakeeveryefforttopreventtheinpersormlity.A.contractB.contrastB.connoctionD.conflietKey:D.析：conflict争论，摩擦，冲突；contact接
8、触，联系，交往；contrast对比；对照；connection联系，关系。restrietion【原句回放】Atthattime,therewererestrictionsonthemovementofEuropcansandso,...(P33)【点拨】restrietionn.theactoflimitingorcontrollingsomeoneorsth.表示"限制,约束"，短语lift/remov
