Unit2Howoftendoyouexercise?SectionA1.exercisev/n(1)v锻炼Heexerciseseveryday.(2)n可数名词练习操domorningexercises做早操doeyeexercises做眼保健操不可数名词锻炼Weoftendo/takeexerciseonweekends.Doingmorningexercisesisgoodforourhealth.做早操对我们的健康有益。2.onweekends=ontheweekend在周末美国英语atweekends=attheweekend在周末英国英语3helpwithsth=helpsb(to)do.sth帮助做某事Theyhelpwiththisproblem.Theyhelpyourelax.他们帮助你放松4.What’syourfavorite......?=What......doyoulikebest？你最喜欢的......是什么？5.(1)sometimes有时advSometimeshecomesbybikeandsometimesbybus.sometimeadv在某个时候可用于一般过去时与将来时。YoucanhandinyourhomeworksometimebeforeFriday.你可以在周五前某个时候交作业。(3)sometime名词短语一段时间I'llbeawayforsometime.我将离开一段时间。(4)sometimes名词短语几次time可数名词次数IhavebeentotheGreatWallsometimes.我去过长城几次。(5)记忆口诀：分开“一段时间”，相聚“某个时候”；S连住是“有时”，分开“几次”、“几倍”行。some和time分开写表示“一段时间”，连着写表示“某个时候”；有S连着写表示“有时”，分开写表示“几次”、“几倍”6.hardlyadv.刚刚,仅仅hardlyever几乎从不几乎没有;几乎不一般位于动词前(1)hardadj.硬的困难的、艰难的adv.努力地刻苦地猛烈地位于动词之后Thegroundisashardasstoneafterthedrought.长期乾旱之后土地硬得就像石头一样。Don'tbetoohardonhershe'sveryyoung.别对她太严了--她还小呢。Theyworkveryhard.他们工作非常努力。behardonsb严格对待或严厉批评某人behardforsbtodosth难做的;难懂的;难答的;困难的7.No,Inevergoshopping.不，我从不购物。(1)goshopping去购物go+v.Ing形式表示进行某项活动goswimming/shopping/skating/skiing/fishing/climbing/hiking去游泳/购物/滑冰/滑雪/钓鱼/爬山/徒步旅行。(2)频率副词always,usually,often,sometimes,hardlyever,never频率副词词义频率英文释义always总是100%allthetimeusually通常90%often,generallyoften经常80%(at)manytimessometimes有时50%attimes,nowandthenhardlyever几乎不10%almostnot,notatallnever从不0%notever,notatanytimehowoften多久一次，提问动作频率可用频率副词回答,也可用频率短语回答onceaday，twiceaweek，fourtimesamonth，everyday等。twiceaweek一周两次表示频率的短语，表示频率的短语由次数＋a＋时间名词构成；一次或两次用once和twice表示，而三次或三次以上，用数词＋times结构。onceamonthtwiceadaythreetimesaweek，fivetimesayear等。(3)疑问词how用法A.怎样，用什么手段，方法/交通工具Howdidhedoit?/Idon’tknowhowtoswim.Howdoyoucometoschool?B.情况如何（指身体健康状况）Howareyou?C.howmany，howmuch表示“多少”howmany后接可数名词复数，howmuch接不可数名词。Howmanytimesdoyougotothepark?Howmucharethosepants?D.howmanytimes询问多少次，其答语表示次数。oncetwice，threetimesHowmanytimesdoyougotothemoviesa