八年级英语下册unit-6.ppt

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1、Unit6Howlonghaveyoubeencollectingshells?firstperiodleadinDidyousleepwelllastnight?Didhesleepwelllastnight?Hewenttobedat2a.mHegotupat6a.mHowlongdidhesleeplastnight?Hesleptfor4hours.Ishesleepingnow?Howlongdidyousleeplastnight?Isleptfor…Areyousleepingnow?Hewenttobedat2a.mItis6

2、a.mnow.Howlonghashebeensleeping?Hehasbeensleepingfor4hours.Ishesleepingnow?What’sthedifferencebetweenthem?Heisnotsleepingnow.Heissleepingnow.Howlonghashebeensleeping?Hehasbeensleepingfor4hours.Howlongdidhesleeplastnight?Hesleptfor4hours.比较：1.IwatchedTVforthreehours.我看了三小时的电

3、视.2.IhavebeenwatchingTVforthreehours.我看了三小时的电视.（I’mnotwatchingTVnow.我现在没有看电视了）（I’mstillwatchingTVnow.我现在仍然在看电视）一般过去时：动作发生在过去，现在已经结束.现在完成进行时(PresentPerfectProgressiveTense=3PTense)：表示从过去开始一直持续到现在的动作，并有可能持续下去．3PTense现在完成进行时shellsIlikecollectingshells.ashellHowlonghasshebeenco

4、llectingshells?Shehasbeencollectingshellsfor8years.Sheisstillcollectingshellsnow.collectshells:from2005~nowWhatisshedoing?askateapairofskatesHeisskating.Heisaskater.Hestartedskatingin2003whenhewas8yearsold.Howlonghashebeenskating?Hehasbeenskatingfor10years.Ishestillskatingn

5、ow?since自从…以来；从…到现在Howlonghashebeensleeping?(4hours)Hehasbeensleepingfor4hours.since4hoursago.Howlongdidhesleeplastnight?(4hours)Hesleptfor4hours.Hesleptsince4hoursago.TFHowlonghasshebeencollectingshells?Shehasbeencollectingshellswasborn:1995collectshells:from2005~nowfor8ye

6、ars.since8yearsago.since2005…………………sinceshewas10yearsold.Hestartedskatingin2003whenhewas8yearsold.Howlonghashebeenskating?Hehasbeenskatingfor10years.since10yearsago.since2003.sincehewas8yearsold.Howlonghashebeenplayingbaseball?Hehasbeenplayingbaseballsince23yearsago.Hestart

7、edplayingbaseballin1990whenhewas10yearsold.for23years.since1990.sincehewas10yearsold.Howlonghasshebeenrunning?(3hours)Shehasbeenrunningfor3hours.since3hoursago.Howlonghashebeenridingabike?(tenhours)He’sbeenridingitfortenhours.sincetenhoursago.HehasbeenA:Howlonghaveyoubeenpl

8、ayingsoccer?B:I’vebeenplayingsoccerIhavebeenNow:3:00pmStart:1:00pmYoustartedplayin