16.Don'tfallbehindnow,justwhenyou'redoingsowell.你干得很出色，这个时候可别后退。17.Prejudicesometimeshampersapersonfromdoingtherightthing.有时候，偏见会妨碍人正确行事。18.Everything...

Iamlisteningtotheradio.（我正在听无线电。）Mybrotheriswriting.（我兄弟正在写字。）Wearepreparingourlesson.（我们正在准备功课。）Ourteachersarehavingameeting.（我们的老师正在开会。）Thedog...

Itiseasiertobesaidthantobedone:itiseasiertosaysth.Thantodosth.说来容易做起来难。Thegovernmentnotonlyhastodosomething,itmustbeseentobedoingsomething(=peoplemus...

1、现在进行时；进行时；现在进行；表将来；正在做某事。例句：IhavestartedplanningoutwhatIshallbedoingnextweek.我已开始详细安排下周要干的事儿了。2、“情态动词+be doing”表示推测或评论某动作...

IamwatchingTV.sheisdoingherhomework.heisplayingtheviolin.mydogisplayingwithaball.wearesinginganddancinghappily.theyarehavinganenglishlesson.mymotheriscookingfood.liutao...

用bedoing造句I'mgoingtobed.我要去睡觉。Healsotoldmethathewasgoingtoagooduniversitynextyear.他说他明年将要去一所不错的大学上。

主语+be+doing+其他:这是正在进行时，例如:I'mdoinghomeworknow.我正在做家庭作业。

Iamgoingtoswimintheholiday.Sheisgoingtoplaybasketballinholiday.Heisgoingtohaveatourinholiday.Wearegoingtogettogetherthisholiday.

Lookatmyfamily.Myfatherisreadingnewspaper.Mymotheriscookinginthekitchen.Iamdoingmyhomework.Weareahappyfamily.翻译：看我们一家人！爸爸在看报纸。妈妈在厨房做饭。我在写作业。我们...

当be变化为现在分词时（is，am，are），bedoing是现在进行时时态。当be变化为过去分词时（was，were），bedoing是过去进行时时态。现在进行时表示动作发生的时间是“现在”，动作目前的状态是“正在进行中”。如：...