高三英语一轮复习 话题14航天科技

1,1.harmful:adj.有害的；可致损伤的,吸烟有害健康。,Smokingisharmfultoourhealth.,Thedrugisharmfultoourbrain.,harm:harmless:harmlessness,n.损害/伤害,adj.无害的,n.无害,2,harm常见短语：,dosb.harm/doharmtosb.domoreharmthangoodThereisnoharmin(sb.s)doingsth.Itdoesnoharm(forsb.)todosth.,对某人有害。,弊大于利,做没有害处,3,2.bylayingeggs.lay-laid-laid-laying放,把放在；产卵Helaidhisbooksonthedesk.注意:lie(lay;lain;lying)躺；位于lie(lied;lied;lying)说谎Thenaughtyboy_tomethatthehenthat_therejustnowhad_twoeggsthedaybefore.A.laid;laid;laidB.laid;lay;lainC.lied;laid;lainD.lied;lay;laid,D,4,3.puzzle:n.谜,难题vt一次atnotime绝不；永不atonetime曾经；一度onceuponatime从前ontime按时;准时fromtimetotime不时地takeonestime不着急,8,6.Itwasnotimmediatelyobviousthatwaterwastobefundamentaltothedevelopmentoflife.水会对于生命的发展起关键作用,这一点在当时并不太明显.本句体现的是名词性从句在句中作主语的作用,It是形式主语,真正的主语是thatwaterwastobefundamentaltothedevelopmentoflife.如:Itisnowonderthathehaspassedtheexam.,7.(sth)dependon(sthelse):1)取决于,Oursuccessdependsonwhethereveryoneworkshardornot.2)依赖，依靠Childrendependontheirparentsforalloftheirmaterialneeds.相信，信赖YoucandependonJane;shealwayskeepsherpromises.4）dependon/upon的宾语补足语可以是不定式或分词Theoldmandependedonhisdaughtertokeephouse.Hedoesntwork,butdependsonhisparentsgivinghimmoney.,我们的成败取决于是否每个人都努力工作。,10,8.ButwhenItriedtostepforward,IfoundIwascarriedtwiceasfarasontheearthandfellover.1）A+倍数+as+adj/adv原级+as+B表示A正好是B的多少倍2)A+倍数+adj/adv比较级+than+B表示“A比B大（长，宽，高)几倍”3）A+倍数+thesize/weight/height/length/width+of+B表示A正好是B的多少倍,11,1)“A+be+倍数+as+形容词原级+as+B”.Thistreeisthreetimesastallasthatone.Hisfatheristwiceasoldashe.2)“A+be+倍数+形容词比较级+than+B”长江差不多比珠江长两倍。我们学校的学生数量比他们学校的多三倍。TheYangtzeRiverisalmosttwicelongerthanthePearlRiver.Thenumberofstudentsinourschoolisthreetimeslargerthanthatintheirs.,12,3)“A+be+倍数+the+名词(size,length,width)+of+B”Thenewlybroadenedsquareisfourtimesthesizeofthepreviousone.新扩建的广场是以前的四倍大。Doyouregret_(pay)100dollarsforthepainting?No,Iwouldgladlyhavepaid_(两倍那么多了)forit.,paying,twiceasmuch,13,这条街是那条街的四倍长Thisstreetisthreetimeslongerthanthatone.Thisstreetisfourtimesaslongasthatone.Thisstreetisfourtimesthelengthofthatone.我们教室的大小是你们教室的三倍Ourclassroomistwi