PAGEPAGE2unit2語法專項(xiàng)頻率副詞等(含習(xí)題)頻率副詞概念：是表示某事發(fā)生頻率的副詞，即用來表示某事在一段時(shí)間內(nèi)所發(fā)生的次數(shù)。always，usually，often，sometimes，hardly，never，是英語中最常見的幾個(gè)頻率副詞。位置：一般放在行為動(dòng)詞之前，be動(dòng)詞、助動(dòng)詞及情態(tài)動(dòng)詞之后。辨析：含義和程度的區(qū)別always的頻率是100％，意為“總是;永遠(yuǎn)地”。usually的頻率是70％左右，意為“通常;平?！?。often的頻率是50％左右，意為“常常”。sometimes的頻率是20％左右，意為“有時(shí)”。hardly的頻率是5％左右，意為“幾乎不;簡直不”。never的頻率為0，意為“從來不;永不”。always>usually>often>sometimes>hardly>never其他：一些表示頻率的詞組，如onceaweek，twiceamonth，threetimesayear，fourtimesayear等，它們準(zhǔn)確地表達(dá)出事情發(fā)生的頻率。我每天喝牛奶，吃蔬菜。Idrinkmilkandeatvegetableseveryday.我每周鍛煉一次。Iexerciseonceaweek.我一年去看望我奶奶四次。Ivisitmygrandmotherfourtimesayear.拓展：辨析：howoften/howsoon/howlong/howfar的區(qū)別howoften表示“多長時(shí)間一次或每隔多久”，就做某事的頻率提問。對howoften的回答一般是“twiceayear”,“threetimesaweek”等你多長時(shí)間看你媽媽一次?--Howoftendoyouvisityourmother?一周一次。Onceaweekhowsoon表示“多久之后”，側(cè)重某人/某事能多長時(shí)間完成。對howsoon的回答一般為:“in+時(shí)間段”。如intwodays,infiveyears他要多久回來?Howsoonwillhebeback?一小時(shí)以后。Inanhour.howlong表示“時(shí)間多久或物體多長”，表示時(shí)間時(shí)，側(cè)重指“一段時(shí)間”?；卮鹨话闶菚r(shí)間段，如forthreedays，threeyears他在這兒待了多久?Howlongdidhestayhere?大約兩個(gè)星期。Abouttwoweeks.howfar表示“多遠(yuǎn)” ,對距離進(jìn)行提問這兒離動(dòng)物園有多遠(yuǎn)?Howfarisitfromheretothezoo?6千米It's6kilometres.辨析：sometimes，sometime，sometimes，sometime的區(qū)別sometimes頻度副詞。意為“有時(shí)”，多用于一般現(xiàn)在時(shí)，對它進(jìn)行提問常用howoftensometime:副詞，意為“在某時(shí)（過去或?qū)恚保硎镜氖遣淮_切或尚末確定的時(shí)間。對它提問用when。sometimes:名詞短語。意為＂幾次，幾倍”。time此處是可數(shù)名詞，對它提問用howmanytimessometime：名詞短語。意為“一段時(shí)間”。time是不可數(shù)名詞，對它提問用howlong綜合練習(xí)：_______domostChinesepeoplehavemeals?Threetimesaday.AHowlongBHowmanyCHowoftenDHowmuchMr.Brown_______exercises,soheisveryfat.AoftenBsometimesCalwaysDneverLiMingiskindandhelpful，butheisalsoalittlecareless_______.AsometimeBsometimesCsometimesDsometime4.I_____playfootballonFridayafternoon.AsometimeBsometimesCsometimeDsometimes5.Designateddrivers(代駕司機(jī))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