2020暑假预习：初中英语8年级上册unit2-语法专项-频率副词-(含习题)

PAGEPAGE2unit2语法专项频率副词等(含习题)频率副词概念：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。always，usually，often，sometimes，hardly，never，是英语中最常见的几个频率副词。位置：一般放在行为动词之前，be动词、助动词及情态动词之后。辨析：含义和程度的区别always的频率是100％，意为“总是;永远地”。usually的频率是70％左右，意为“通常;平常”。often的频率是50％左右，意为“常常”。sometimes的频率是20％左右，意为“有时”。hardly的频率是5％左右，意为“几乎不;简直不”。never的频率为0，意为“从来不;永不”。always>usually>often>sometimes>hardly>never其他：一些表示频率的词组，如onceaweek，twiceamonth，threetimesayear，fourtimesayear等，它们准确地表达出事情发生的频率。我每天喝牛奶，吃蔬菜。Idrinkmilkandeatvegetableseveryday.我每周锻炼一次。Iexerciseonceaweek.我一年去看望我奶奶四次。Ivisitmygrandmotherfourtimesayear.拓展：辨析：howoften/howsoon/howlong/howfar的区别howoften表示“多长时间一次或每隔多久”，就做某事的频率提问。对howoften的回答一般是“twiceayear”,“threetimesaweek”等你多长时间看你妈妈一次?--Howoftendoyouvisityourmother?一周一次。Onceaweekhowsoon表示“多久之后”，侧重某人/某事能多长时间完成。对howsoon的回答一般为:“in+时间段”。如intwodays,infiveyears他要多久回来?Howsoonwillhebeback?一小时以后。Inanhour.howlong表示“时间多久或物体多长”，表示时间时，侧重指“一段时间”。回答一般是时间段，如forthreedays，threeyears他在这儿待了多久?Howlongdidhestayhere?大约两个星期。Abouttwoweeks.howfar表示“多远” ,对距离进行提问这儿离动物园有多远?Howfarisitfromheretothezoo?6千米It's6kilometres.辨析：sometimes，sometime，sometimes，sometime的区别sometimes频度副词。意为“有时”，多用于一般现在时，对它进行提问常用howoftensometime:副词，意为“在某时（过去或将来）”，表示的是不确切或尚末确定的时间。对它提问用when。sometimes:名词短语。意为＂几次，几倍”。time此处是可数名词，对它提问用howmanytimessometime：名词短语。意为“一段时间”。time是不可数名词，对它提问用howlong综合练习：_______domostChinesepeoplehavemeals?Threetimesaday.AHowlongBHowmanyCHowoftenDHowmuchMr.Brown_______exercises,soheisveryfat.AoftenBsometimesCalwaysDneverLiMingiskindandhelpful，butheisalsoalittlecareless_______.AsometimeBsometimesCsometimesDsometime4.I_____playfootballonFridayafternoon.AsometimeBsometimesCsometimeDsometimes5.Designateddrivers(代驾司机)are_______seeninourcitybecausedrunkdrivingisnotallowed.AseldomBhardlyCalways6.Anna_______getsupat6:40a.m.,butshegetsupat7:30a.m.today.AneverBusuallCalsoDreally7.Youplaythepianosowell.______doyoutakepianolessons?Igotopianolessonstwiceaweek.AHowlongBHowmanyCHowoftenDHowmuch8.Booksareourfriends._________doyoureadbooks?Ireadbookseveryday.AHowoftenBHowsoonCHowlong9.Doyouusually______thebustoworkeveryday?No,______Igotherebycar.Aby,sometimesBtake,sometimeCby,sometimeDtake,sometimes10.______doyouplaytheguitar?Threetimesaweek.AHowmuchBHowoldCHowlongDHowoftenHowoftendoyoudoexercise?_________.ASometimesBThreehoursCAtthreeo'clockDIntwohours______doesyourgrandpadoexercise?Everyday.AHowsoonBHowlongCHowoftenDHowfar_______willyoucomebackhome,Danie?Intwentyminutes.I'llhurry.AHowsoonBHowoftenCHowlong14.Excuseme，_______isitfromthenearestpostoffice?Onlytenminutes’walk.AhowlongBhowmuchChowmanyDhowfar15._____doyougobacktoyourhometown.Twiceayear.AHowlongBHowsoonCHowfarDHowoften16.______doyouplaybasketball?Onceaweek.AHowmuchBHowlongCHowoftenDHowfar17.______h