高中英语 Unit2《Robots》学案4 新人教版选修7.rar

74用心爱心专心第二单元Unit2《Robots》appear(1)意为“出现，呈现”，不及物动词，无被动态，其反义词为disappear不及物动词，无被动态Itappearstobe/that/asif…和appear+介词短语Arainbowappearedintheskyaftertherain.Weexpectedhimtocomeatsevenbuthedidn’tappearuntileight.Hernewbookwillappearinthebookshopsverysoon.HesaidIwouldneverappearontheair.Heappearedill.Heappeared(tobe)willingtogowithme.Heappearedtohaveseenthefilm.Itappearedtomethatyouareright.(2)意为“似乎，好像，显得”不用于进行时。Youdon’tappeartocaremuchformusic.Sheappears(tobe)anhonestgirl.ItappearsasiftheyhavelostinterestinEnglish.appear,look,与seem的异同：(1)appear指根据事物的表面现象而作出的判断，暗含事实上并非如此之意。(2)look指凭视觉印象而作出的判断，实际上也可能如此。Helookedasifhewasworryingaboutsomething.(正)(3)seem是指暗含有一定根据的，往往接近事实的判断，强调内心的感受。Hishealthseemstobebetter.它们之后都可以接名词、形容词、tobe不定式等结构，通常可以互换，但下列情况下不可互换。①look,seem之后可接like短语，而appear不能。look可用于进行时态而appear,seem不能，look,seem之后可接asif(though)引导的从句，而appear不能。②appear,seem之后可接that从句，而look不能。Itseemed(appeared)that/asifhewasill.appear,seem之后可接实义动词的不定式，而look不能。appear,seem可用于therebe结构中而look不能。Thegreenleavesappeared/looked/seemed(tobe)morebeautifulaftertherain.Itseems/lookslikeyearssinceIlastmetyou.Sheislookingquiteadifferentpersonnow.Itseems/looksasifheknewnothingabouthisnewfriend.Itappears/seemsthatwehavemissedourchance.Sheappears/seemstohavemissedthethirdactoftheplay.Thereappears/seemstobeamistakeinthesefigures.Doletyourmotherknowthetruth.Sheappears_everything.AtotellBtobetoldCtobetellingDtohavebeentold2certain(1)作前置定语，意为“某个，某些”Therearecertainreasonswhythisinformationcan’tbemadepublic.Drinkingisforbiddenincertaincountries.AcertainMsJonesphonedyoutoday.ImetMr.Zhangatacertainplace.(2)意为“确定的，有把握的”用法相当于sure一般可互换。但在Itiscertainthat句型中只能用certainbesureofsthI’msureofthevictory.surebesuretodosthWearesuretowinthematch.besurethatI’msurethathecancomeontime.3experiment(1)n“试验，实验”常用词组：make/perform/carryout/conductanexperiment进行试验/实验Ithasbeenprovedbyexperimentthattheatomcanbedividedagain.Welearnedthetruthbyexperiment.(2)viexperimentwith测试，尝试Theteacherexperimentedwithanewteachingmethod.Theyexperimentedwithnew