必修3第五单元语法

Unit5TheTrueNorthGrammar前缀：通常只改变词义，不改变词性（1）表示否定：1.un-:2.dis-:3.in/im-(用于以p开头的单词）

il-(用于以l开头的单词）

ir-(用于以r开头的单词）4.mis-:5.non-:unable,uncover,unknowndisappear,disagreeimpossibleillegalirregularmisunderstandnon-stop,non-smoker2.re-:表示重复，“又，重”：3.inter-:表示“相互的”：4.multi-:表示“多”：4.en-:构成动词，表示“使”。5.a-:构成表语形容词，表示“的”。retell,recycle,reusemultinationalinternationalenjoy,encourage,enableasleep,alike,awake,alive后缀：后缀通常会改变词义，构成意思相近的其他词性的词。少数后缀同时会改变词义，多是变为词义相反、词性转化的新词。（1）形容词后缀：

（2）动词后缀：（3）名词后缀：（4）副词后缀：-al,-able,-ful,-ic/ical,-ly,-ous,-en,-ive,-lesspurify,widen,sharpen-fy,-en:-ment,-ness,-tion,-er/or/ist/ess-ly,-wardsUnit5TheTrueNorthLanguagepointstheAtlanticcoaston…onatriptoCanadatovisittheircousin

ontheAtlanticcoast.(1)Taiwan&Fujian(2)Fujian&China(3)Guangdong&Guangxitoinoneastward(s)adv.

eastward向东goeastwardgotoeastwardX

Asubwaystation

is/lies

totheeastof

theschool.Thedininghall

is/lies

intheeastof

theschool.

Toronto

faces

theAtlantic

on

theeast.adj.

eastern

东方的，东部的

Thedininghall

is/lies

intheeasternpartof

theschool.

英语复合方向：先南北，后东西西南东北

southwestnortheast一些具方位含意的地区不用the华南华东中东远东

2.Ratherthantaketheaeroplanealltheway,they…eg.他宁愿做作业也不愿打游戏。a.wouldratherdoAthandoBb.doAratherthandoBc.prefertodoAratherthandoB3.You’llsee…andwideriversaswellascities.Shesingsaswellasplayingthepiano.ShespeaksChinese,EnglishaswellasFrench.Theywould______thewholecontinentacrosscrossthroughcross4.…becausepeoplefromtherestofCanadaand…(P2.L9)Therestoftheapple_____yellownow.(be)Therestofthestudents____playingagame.Therestoftheinformation______unsuitableforchildren.5.Thatafternooninthecousinssettleddownintheirseats.(P3.)isareis6.…thepopulationofCanadaisonlyslightlyover30million.1)表示人口、群众、居民、数量等意思时为，谓语常用单数。ThepopulationofChinaisthelargestintheworld.2）表示部分的具体的人，当前面带有分数或百分数作主语时，谓语用复数。1/3ofthepopulationareworkers.3)表示人口的多与少时用large/big/great,small不用many,few,much,little.提问人口多少时用What或howlarge，不用howmany/much.U7.Theywentthroughawheat-growingprovince…1)Annawentthroughalotinthewar.2)Ican’tgothroughthetextin5minutes.3)Motherwentthroughtheroomforherglasses.8.Canadahasone-thirdoftheworld’sfreshwater.分数的表达：1/4，3/5，1/2分数的表达是分子用基数词，分母用序数词当分子超过一时，分母的序数词用复数。分子与分母之间的连字符可有可无。9.ThereismorefreshwaterinCanadathaninanyothercountryinthe