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现在完成进行时Ihavebeencolectingshellsforfiveyears.Istartedtocollectshellsfiveyearsago.Hebegantocollectcoinstwoyearsago.Hehasbeencollectingcoinsfortwoyears.Shestartedtocollectstampslastyear.Shehasbeencollectingstampsforayear.现在完成进行时一、用法：表示从过去某时开始，一直延续到现在的一个动作；该动作有可能继续延续下去。如：我收集邮票已经五年了。（collect这个动作从五年前开始，并延续到现在。）他看书已经三小时了。（read这个动作从三个小时前开始，并延续到现在。）二、句型结构主语+have/hasbeen+v.ing+其他.has用于第三人称单数，have用于除第三人称单数外的人称。与主语可缩写为’s,’ve.如：Ihavebeencollectingstampsfor5years.I’veHehasbeenreadingbooksfor3hours.He’s分清我是谁！HeisorHehas看图，根据提示词，用现在完成进行时表达句子heskatethreehoursHehasbeenskatingforthreehours.TheboystudytwohoursTheboyhasbeenstudyingfortwohours.看图，根据提示词，用现在完成进行时表达句子theyplaybasketballoneandahalfhoursTheyhavebeenplayingbasketballforoneandahalfhours.看图，根据提示词，用现在完成进行时表达句子三、连用的时间(判断该时态的标志词)for+时间段；（fortwoweeks,两个星期)since+时间/点从句(sincelastMonday,自从上星期一以来；sinceIwas7yearsold.自从我七岁以来)二者可以改写同义句。fortwoyears=sincetwoyearsagoeg：Hehasbeenplayingforonehour.Hehasbeenplaying_________________.sinceonehourago常用句型：(1)肯定句：主语+have/hasbeen+动词的现在分词+其他eg:Hehasbeencollectingallkindsofkindsofstampssincehewastenyearsold.自10岁起他就开始收集各种各样的邮票(2)否定句：主语+have/hasnotbeen+动词的现在分词+其他eg：Hehasn’tbeenteachingheretheseyears?这些年他并没有一直在这教书。常用句型：(3)一般疑问句：Have(Has)+主语+been+动词的现在分词+其他？肯定回答：Yes，主语+have/has;否定回答：No,主语+haven’t(hasn’t)---HasDanielbeenskatingfortwoyears?丹尼尔滑冰已经有两年了吗？---Yes,hehas./No,hehasn’t是的，他有/不，他没有。用所给动词的适当形式填空。1.Jim_________________(teach)Englishfor5years.2.We_______________(work)heresincetwoyearsago.3.He________________(play)footballsincehewas9yearsold.4.Hisbrother_______________(write)thisstorysincelastyear.hasbeenteachinghavebeenwalkinghasbeenplayinghasbeenwriting句型转换。按要求改写下列句子。1.Hehasbeenwaitingforhismotherforanhour.(一般疑问句,并做肯否定回答)2.Theboystartedtoplaytheguitartwoyearsago.（用for,since短语改写）______he______________forhismotherforanhour?Yes,_______.No,___________.Theboy________________for________.Theboy_______________since____________.Hasbeenwaitinghehashehasn’thasbeenplayingtwoyearshasbeenplayingtwoyearsago3.Thestudentshavebeenskatingforfivehours.（否定句）Thestudents___________________forfivehours.4.Shehasbeenreadingbooksforthreehours.（同义句）Shehasbeenreading____________________.haven’tbeenskatingsincethreehoursago5.Thevisitorshavebeenclimbingthemountainsforsevenhours.(划线提问)____________thevisitors____climbingthemountains?Howlonghavebeen