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频率副词adverbsoffrequency频率副词•一般用来表示动作发生的频率，次数•往往放在句子中间，实义动词之前，非实义动词之后;•非实义动词分为:•1系动词be.•2助动词帮助动词构成时态(do,does,will,shall,have,had,has).•3情态动词(must,can,may)。•除此之外，都叫做实义动词usually(80%)经常often(60%)通常always(100%)总是sometimes(40%)有时seldom(20%)很少hardlyever/rarely(10%)几乎不never（0%）从不日常频率副词howoften用于提问once,twice,threetimesaweek,everyday用于回答次数询问次数例：--Howoftendoyougoswimming?你通常多久去一次游泳？--Igoswimmingtwiceaweek.我每周去游泳两次。•1.频率副词用在be动词后。•Heisalwayslateforclass.他经常迟到。•2.频率副词用在主要动词前。•Myfatherusuallywalkshome.我的父亲经常步行回家。•3.频率副词用在助动词与实义动词之间。•Iwillalwaysloveyou.我将永远爱你。•4.在答句中,频率副词必须放在助动词前。•Doyouoftengothere?你常去那里？•(误)Yes,Idooften.是的,我常去。(正)Yes,Ioftendo.是的,我常去.用法•1.Whatdoyouusuallydoonweekends?•Isometimesgotothebeach.•2.Howoftendoyoueatvegetables?•Everyday.•3.Moststudentsdohomeworkeveryday.总结句型