Unit2知识点复习课件人教版英语八年级上册

人教版八年级上册Unit2HowOftenDoYouExercise?01语法Howoftendoyouexercise?多久一次Hardlyever.几乎从不回答2.Onceaweek.一周一次1.定义：频度副词表示事情发生的频率，可用来回答howoften引导的问句2.常见频率副词：always＞usually＞often＞sometimes＞hardlyever(seldom)＞never3.位置：实义动词前面，be动词/助动词/情态动词后面e.g.TheyhardlyeverwatchTV.Theyarealwayslateforschool.频率副词sometimes横看成岭侧成峰sometimes频度副词有时表示动作发生的不经常性，多与一般现在时连用，对它提问用howoftensometimes名词短语几次；几倍其中time是可数名词，意为“次，倍”，对它提问用howmanytimessometime副词某个时候表示某个不确切或不具体的时间，常用于过去式或将来时，对它提问用whensometime名词短语一段时间句中谓语动词常为延续性动词，对它提问用howlongSometimesIgetuplate.Ihavereadthestorysometimes.Idecidedtotryparaglidingwithmysistersometimenextweek.TheywillliveinBeijingforsometime.口诀分开“一段时间”

（sometime）相聚在“某时”

（sometime）“有时”相聚加-s （sometimes）“几次”分开带-s （sometimes）hardly/hard乱花渐欲迷人眼hardly副词意为“几乎不”Hehardlyworks.hard副词意为“努力地；困难地；猛烈地”Heworkshard.Itrainedhard.形容词意为“努力的；困难的；硬的”Therearesomehardquestionsontheexampaper.Thisisahardbed.次数aweek/month/year.Once

a

week次数：once一次twice两次threetimes三次….Iexerciseonceaweek.Howoftendoyouexercise?Howmanytimesdoyouexerciseaweek?1.Heisthefirsttogettoschooleveryday.Heis______lateforschool.alwaysB.often C.sometimes D.never2.--Ms.Linisverypopularwiththestudents.--Yes.Herclassesare____________livelyandinteresting.alwaysB.sometimes C.hardly D.never3.We_____playsportsonschooldays.Youknow,wedon’thaveenoughtime.oftenB.usually C.hardly D.ever4.Canyouspeakalittlelouder?Ican______hearyou.A.hard B.really C.hardly D.clearlyPractice02动词exerciseexercise

exercise动词锻炼Hehardlyexercises.名词[不可数]锻炼takeexercise[可数]体操；练习题domorningexercisesdoeyeexercisesdogrammarexercises花费花费spend花费（时间、金钱）；度过主语是人spendonsth.spend(in)doingpay支付（金钱）主语是人pay钱for物take花费（时间）it作形式主语，真正的主语是动词不定式Ittakes/tooksb.sometimetodosth.cost花费（金钱）主语是物Sth.costssb.somemoneyask询问asksb.aboutsth.询问某人关于某事Weaskedstudentsabouttheirfreetimeactivities.2.请求，要求asksb.todosth.让某人做某事asksb.nottodosth.让某人不要做某事Theteacherasksustolistentohercarefully.Theteacherasksusnottotalkinclass.3.寻求askforhelp寻求帮助asksb.forsth.向某人寻求某物Weasktheteacherforhelp.helpv.帮助helpsb.withsth.＝helpsb.（to）dosth.帮助某人做某事IoftenhelphimwithhisEnglish.

＝Ioftenhelphim(to)learnEnglish.n.帮助withone’shelp=withthehelpofsb.在某人的帮助下Withourteacher’shelp=Withthehelpofourteacherhaveto/musthaveto/must

haveto

不得不

侧重客观需要有人称、数和时态的变化

must

必须侧重主观上自己认为有必要没有人称和数的变化03名词&代词意为“百分之……”，常用于“基数词＋percent”结构

10percent百分之十无复数形式，与名词连用时后需＋of10percentofthestudents百分之十的学生percentof后接名词或代词做主语时，谓语动词的单复数形式要根据of后的名词或代词而定

10percentofthestudentslikereadingbooks.八分之十的学生喜欢读书

percent

none/noone/nothingnone（没有一个；毫无）既可指人，也可指物可单独用，或和of连用，后跟不可数名词或可数名词复数谓语动词用单数或复数（看名词）noone（没有人）只能指人一般单独使用，不和of连用谓语动词用单数nothing（没有什么）只能指物单独使用谓语动词用单数Noneofuswenttothepark.Noonewantstoleave.Nothingisimpossible.04连词&介词

although连词意为“虽然；尽管；即使”，相当于though，引导让步状语从句。同一句子中although与but不能连用。Shekeptonworkingalthoughshewastired.①介词，意为“通过，靠”，表示方法、手段，其后接名词、代词或动词-ing形式。Mr.Greenmakesalivingbyteaching.②by＋交通工具，意为“乘/驾/坐……”IwenttoBeijingbyplane.③by＋时间，意为“到……时为止；在……以前”Imustbeinbedbyten.④by＋地点，意为“在……旁边”Welivebythesea.

by意为“例如；像……一样”多用于来列举同类人或事物中的几个。Hehasmanyhobbies,suchasswimmingandreading.

such

as05形容词&副词How疑问词荟萃How疑问词荟萃howoften多久一次提问频率Howoftendoyouexercise?howmuch多少；多少钱提问数量或价格Howmuchisthesweater?howmany多少提问数量Howmanyarethesebirds?howlong多长；多久提问长度或时间长短HowlongdoesittaketogettoShanghai?howfar多远提问距离Howfarisitfromheretothepark?howsoon多久以后提问将来的时间Howsoonwilltheycomeback?howold多大年纪提问年龄Howoldareyou?--________doyougotothezoo?--Onceamonth.--________monkeysarethereinthezoo?--________isitfromBeijingtoTianjin?--It’s92km.--________aretheapples?--Theyare10yuan.Practicefree/full②full意为“忙的”，还可以表示“满的；饱的”。Herlifeissofullthatshedoesn’thavetimeforhobbies.Thebottleisfullofwater.Ican’teatanymore,I’mquietfull.free/fullmaybe&maybe辨析maybe或许；大概；可能副词，作状语，常位于句首maybe可能是情态动词＋动词原形结构，在句中作谓语Maybeyouareright＝Youmayberight.almost,nearly都是副词，意为“几乎，差不多”，almost之前不可用very，not等词修饰，但在no,none,never,nothing等否定词前可用almost。Thereisalmostnothingintheroom.Thecarisprettynearlynew.nearly&almost

begoodfor/at/with/tobegoodfor对…有好处Doingmorningexercisesisgoodforyou.begoodat擅长I’mgoodatplayingbasketball.begoodwith善于应对…Heisgoodwithchildren.begoodto对…友好Sheisalwaysgoodtome.Doingeyeexercises________youreyes.I________playingbasketball.He________hisclassmates.Practicetoo/either/alsotoo也常用于肯定句位于句末，其前常加逗号either也（不）常用于否定句位于句末，其前常加逗号also也常用于肯定句位于句中，助动词/be/情态动词之后，实意动词之前Lucylikesred.Ilikered,too.Ifhedoesn’tgo,Iwon’t,either.Theyalsoagreewithme.06句式根本不;一点也不。atall可位于句末，也可跟在否定词后。Itwasn’tdifficultatall.这一点也不难。Heisn’ttiredatall.He’snotatalltired.他一点也不累。

notatall

口语中单独说notatall,可用来回答感