青少版新概念英语2A-Unit5

Unit5Allaboutants!Discussion•Doyouknowants?•Whatdoyouthinkofthem?Guess“T”or“F”•Antsusuallyliveinwetplaces.TorF•Antsmaybreatheunderwater.•Antsalwaysstretchtheirlegsinthemorning.TorF•Antsusuallyyawnintheevening.TorFantwebpagebreathestretchyawninsectNewwordsandexpressions:antsinsectwebpagewebsitelookupyawn蚂蚁昆虫网页网站查阅打哈欠Newwordsandexpressions:breathestretchsurviveusealsofunnilyenough呼吸伸展肢体幸存，生存下来用，使用也，并且十分有趣地昆虫使用蚂蚁幸存网页网站呼吸打哈欠生存5’伸展5’晚上1’腿2’用2’呼吸4’网站3’昆虫3’WordsMemory•Robert:Lookatthis______,Mum.It’sabout____.•Karen:Ants?Whyareyou______ants?webpageantslookingup•Robert:Whynot?•Antsarereally______.Theydoreallyinterestingthings.•Karen:Whatkindofthing?interesting•Robert:Well,they_____livein___places.Buttheycan_____underwaterfor___weeks.•Karen:Really?usuallydrysurvivetwo•Karen:Dothey_____underwater?•Robert:Itdoesn’tsay.breathe•Robert:Oh,Mum,howaboutthis?Antsalways____theirlegsinthe_____.•Karen:You’rejoking!•Robert:No,_____!stretchmorningreally•Karen:Dotheyusually____inthemorning,too?•Robert:Well,_______,theydo!yawnfunnilyenoughGrammarPoints1•Lookatthiswebpage.•Practice•Lookat_____.(I)•Lookat_____.(she)•Lookat_____.(he)•Lookat_____.(they)•Lookat_____.(us)看GrammarPoint2•It’saboutants.•Translation（翻译）•What’sthisabout?•Thissongisaboutfriendship(友谊).•--Whattimeisitnow?--About3:30.关于GrammarPoint3•Whyareyoulookingupants?•Whynot?Antsarereallyinteresting.“为什么不呢”，我们可以用“whynot”来回答“why”引导的特殊疑问句GrammarPoint4•Theyusuallyliveindryplaces.•Theydon’tusuallyliveinwetplaces.频率副词频度比较(约等于)备注always100％总是，一直usually80％通常often70％经常sometimes30％有时hardly1%很少，几乎不never0从不，决不GrammarPoint5•Theycansurviveunderwaterfortwoweeks.Practice：她每天看两小时电视。他每天睡觉八小时。我爸爸每天早上跑步两小时。表示某一动作持续一段时间。GrammarPoint6•Howaboutthis?（这个呢？）•Makeupyourowndialoguewith“howabout”.Forexample:•Howoldisyourmother?•Mymotheris35yearsold.•Howaboutyourfather?•Heis36yearsold.GrammarPoint7•Karen:Dotheyusuallyyawninthemorning,too?•Robert:Well,funnilyenough,theydo!表示theyyawn;do在这里指代前面出现过的动词，避免重复出现。gotoschoolarriveshomelistentothenewsgoestoworkgoestoshoppingpreparesamealcomehomewatchTVWhattimeisit?It’s12o’clock.Whattimeisit?It’stenpastone.Whattimeisit?It’saquarterpasttwo.Whattimeisit?It’shalfpastfive.Whattimeisit?It’stwentytoeight.Whattimeisit?It’saquartertonine.Attention!分在前，时在后；过用past，差用to；一刻quarter；半halffiveo`clocktenpasttentwenty-fivepasttenhalfpasttwoaquartertotwelvetwentytoelevenpasto`clockhalfpast一般现在时（TheSimplePresentTense）一般现在时表示经常发生的、习惯性的动作或存在的状态。其时间状语为often、usually、always、sometimes等频率副词，onSaturdays、inthemorning(afternoon/evening)、everyday（week/year）等.二．只有主语在第三人称单数时用动词的“三单形式”，其他人称用动词原形。动词三单形式的变化规则：（1）多数直接在动词词尾加-splay—playslike—likesask---askswork---worksget---getscall---calls（2）以字母s,x,ch,sh或o结尾的动词，在词尾直接加-es.watch---watcheswish---wishesdo---doesgo---goes（3）以“辅音字母加-y”结尾的动词，要先变y为i再加-estry---triesstudy---studiescry---criesfly---flies不规则变化：be---ishave----has三、一般现在时的句子转换：（1）变一般疑问句：当句子中有be动词或情态动词时，则把be动词或情态动词(can,could等)提到主语的前面，（口诀：一调二变三问号）（2）变否定句：在be动词或情态动词后面直接加not变成否定句(be）后not莫忘记)例：①陈述句：Sheismysister.否定句→Sheisnotmysister.疑问句→Issheyoursister?②陈述句：Icanplaysoccer.否定句→Icannot/can’tplaysoccer疑问句→Canyouplaysoccer?Yes,Ican./No,Ican’t.改写句子1)Nancyisagirl.（改一般疑问句→肯定回答）2)Aretheygoodfriends?（肯定回答）3)Theyalwaysmakecaketogether.（改否定句）4)Hedoesn'tgotoschoolbybus.（改肯定句）5)Iwantahamburger.（改一般疑问句→否定回答）