八年级英语上册Unit2Howoftendoyourcise课件（新版）人教新目标版.ppt

Unit2Howoftendoyouexercise?,SectionA,SectionB,1.hardlyever(教材P9)几乎从不解读hardlyever是一个表示频率的副词短语,意为“几乎从不”。其中hardly仅用作副词,意为“几乎不;几乎没有”,表示否定意义,在句中常与can,could,any连用。Ihardlyeverplaycomputergames.我几乎从不玩电脑游戏。ImsotiredthatIcanhardlywalkanyfarther.我太累了,简直不能再走下去了。注意hardly不是hard的副词形式。,SectionA,SectionB,SectionA,SectionB,2.HowoftendoyouwatchTV?(教材P10)你多久看一次电视?解读howoften意为“多久一次”,是疑问副词短语,用来询问在某一段时间内进行某个动作的频率,经常与一般现在时连用。答句通常用always,usually,often,sometimes,hardlyever,never,onceaday,threetimesaweek,everyday等表示频度的词或短语来回答。Howoftendoyougoskateboarding?你多久玩一次滑板?Twiceaweek.一周两次。,SectionA,SectionB,归纳,SectionA,SectionB,Howmanytimesdoyouusuallyplayfootballinaweek?你一周踢几次足球?Seventimes.七次。Howlongdidyoustaythere?你在那里待了多长时间?Fortwoweeks.两周。HowsoonwillyourfriendTomcometovisityou?多久之后你的朋友汤姆会来拜访你?Intwoweeks.在两周后。,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,3.onceaweek(教材P10)一周一次解读once做副词,意为“一次”。HowmanytimesdidyougotoFrance?你去过法国几次了?Onlyonce.仅仅一次。拓展在英语中“一次”用once,“两次”用twice,“三次或三次以上”用“基数词+times”来表示。Wehavemealsthreetimesaday.我们一天吃三顿饭。,SectionA,SectionB,SectionA,SectionB,4.nextweekisquitefullforme,Jack.(教材P10)杰克,对我来说下周相当忙。解读full为形容词,在此句中意为“忙的”。Hewastoofulltofindtimeforhobbies.他太忙了,找不出时间培养业余爱好。拓展,SectionA,SectionB,Theroomwasfullofpeople.室内挤满了人。Icanteatanymore;Imfull.我不能再吃了,我饱了。Shelookedhimfullinthefaceasshespoke.她说话的时候直盯着他的脸。,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,5.Igotothemoviesmaybeonceamonth.(教材P11)或许我一个月去看一次电影。解读maybe为副词,意为“或许;大概”,相当于perhaps,在句中做状语。Maybeheknowsthewaytothepark.也许他知道去公园的路。,SectionA,SectionB,易混辨析,SectionA,SectionB,巧学妙记:合并做状语,分开做谓语。舍maybe仍有意,丢maybe可不成。,SectionA,SectionB,6.Heplaysatleasttwiceaweek.(教材P11)他至少一周踢两次(足球)。解读atleast意为“至少;不少于;起码”,常用来修饰时间、距离、长度等,以加强语气,反义词组为atmost.Schoolsshouldallowstudentsatleastonehouradayforsports.学校应该允许学生一天至少有一小时的运动时间。Weshouldbrushourteethatleasttwiceaday.我们每天应该至少刷两次牙。,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,1.Forty-fivepercentexercisefourtosixtimesaweek.(教材P13)百分之四十五(的学生)一周锻炼四到六次。解读1percent为名词,意为“百分之”,其符号为%。常用于“数词+percentof+名词”结构中,意为“当中的百分之”,做主语时,谓语动词的单复数形式要与of后的名词保持一致。Aboutfiftypercentofthestudentsaregirlsinmyclass.在我的班里大约百分之五十的学生是女孩。,SectionA,SectionB,解读2fourtosixtimes意为“四到六次”。表示一个不确定的数时,如两个数不相邻时用结构“基数词+to+基数词+名词”,如两个数相邻时用结构“基数词+or+基数词+名词”。Theyoftenworkseventoninehoursaday.他们经常每天工作七到九个小时。Therearetwoorthreestudentsintheclassroom.教室里有两三个学生。拓展“一两个”的两种表达方式一两个小时:anhourortwo或oneortwohours一两个学生:astudentortwo或oneortwostudents,SectionA,SectionB,2.Althoughmanystudentsliketowatchsports,gameshowsarethemostpopular.(教材P13)虽然许多学生喜欢观看体育节目,但是游戏类节目却是最受很欢迎的。解读although为连词,意为“即使;纵然;虽然”,引导让步状语从句,相当于though,两者在大多数情况下可以通用。Though/Althoughsheisinpoorhealth,sheworkshard.=Sheisinpoorhealth,butsheworkshard.尽管她身体不好,但她还是努力工作。注意在同一个句子中,although/though不能与but,however连用,但可以与yet,still连用。,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,3.wethinkthebestwaytorelaxisthroughexercise.(教材P13)我们认为放松最好的方式是通过锻炼。解读through为介词,意为“穿过;通过”。Theriverrunsthroughtheforest.那条河奔涌着穿过了森林。,SectionA,SectionB,易混辨析,SectionA,SectionB,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,SectionA,SectionB,4.Exercisesuchasplayingsportsisfun,andyoucanspendtimewithyourfriendsandfamilyasyouplaytogether.(教材P13)像做运动这样的锻炼是有趣的,并且你能花时间和你的朋友和家人一起做运动。解读1suchas意为“例如;像一样”。Hehasseveralpetssuchascatsanddogs.他有几个像猫和狗这样的宠物。,SectionA,SectionB,SectionA,SectionB,解读2together做副词,意为“一起;共同”。Theysattogether,chatting.他们坐在一起聊天。,SectionA,SectionB,SectionA,SectionB,5.Janeisa16-year-oldhighschoolstudentintheUnitedStates.(教材P15)简是一位十六岁的美国高中生。解读16-year-old意为“16岁的”。Sheisan18-year-oldgirl.她是个十八岁的女孩。拓展“数词+名词”或“数词+名词+形容词”组成的复合形容词只做前置定语,而不能做表语,中间用连字符相连,此时的名词一定用单数形式。Thisisatwenty-floorbuilding.这是一座二十层的大楼。Thefestivaliscoming.Wewillhavean8-dayholiday.节日要来了,我们即将度过八天的假期。,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,6.However,shehassomebadhabits,too.(教材P15)不过,她也有一些坏习惯。解读however在此句中做副词,意为“然而;不过”。Shewasill.However,shewenttoworkasusual.她病了,然而她照旧去上班。注意however在句子中可以位于句首、句中和句末,使用时通常用逗号与句子其他部分隔开。,SectionA,SectionB,易混辨析,SectionA,SectionB,SectionA,SectionB,名师解题,SectionA,SectionB,SectionA,SectionB,7.SheusuallywatchesTVformorethantwohoursaday,.(教材P15)她通常看两个多小时的电视,解读morethan意为“多于”,其同义词为over,反义短语为lessthan,意为“少于”。Morethanonepersonmadethissuggestion.不止一人提过这个建议。Hisgrandfatherismorethaneightyyearsold.他的爷爷八十多岁了。,SectionA,SectionB,SectionA,SectionB,8.Almosteveryday.(教材P16)几乎每一天。解读almost为副词,意为“几乎;差不多”,强调差一点。Heslippedandalmostfell.他脚下一滑,险些跌倒。拓展almost可用于修饰动词、形容词、副词、名词、代词、数词或介词等,有时还可用来代替全句,常常紧接在它所修饰词之前。Myteacherisalmostlikeafathertome.我的老师对我几乎就像父亲一样。Itsalmosttenoclock.差不多10点了。,频度副词知多少本单元语法为频度副词及其用法,现归纳如下。1.含义频度副词是表示某事发生频率的副词,即用来表示某事在一段时间内所发生的次数。2.用法(1)英语中常见的频度副词:always,usually,often,sometimes,hardlyever,never。它们的含义和所表示的频率高低是不同的,如下图所示。,Heisalwaysthinkingofothers.他总是为他人着想。Iusuallygotoschoolbybike.我通常骑自行车去上学。Weoftengothere.我们常去那儿。Sheissometimesverybusy.她有时很忙。Ithardlyeversnowshere.这儿几乎从不下雪。IwillneverforgetthefirsttimeImetyou.我永远忘不了和你的第一次见面。,(2)频度副词在句中的位置频度副词一般位于实义动词之前,系动词、助动词或情态动词之后。Hedoesntoftengoshopping.他并不经常去购物。巧学妙记:行前系后情助