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频度副词1.定义usually/sometimes/always/often等词在英文中被称为“频度副词”，是用来表示动作频率的，但程度上有别。常见频度副词按频率大小排列如下：always（100%）usually（80%）often（60%）sometimes（40%）seldom（20%）never（0%）2.频度副词的位置◆频度副词在句中习惯上位于be动词、助动词等之后，行为动词之前。1.在be动词之后。如：Sheissometimesverybusy.她有时很忙。2.在第一个助动词或情态动词之后。如：Iwillneverforgetthislesson.我将永远忘不了这一课。3.在实义动词之前。如：Weoftengothere.我们常去那儿。◆sometimes也可放在句首、句中或句末，often也可放在句末（一般不放在句首）。如：Sometimesshewritestome.=Shewritestomesometimes.她有时候给我写信。Shewritestomeoften.她经常给我写信。一、将频率副词填入适当得位置。1.Lisahelpshermomathome.（usually）__________________________________________________2.Jackislateforclass.（never）__________________________________________________3.Hegoestoschoolat7:00everymorning.（always）__________________________________________________4.Onweekends,myfathertakesustothemovies.（sometimes）__________________________________________________5.Mybrothergetsgoodgradesatschool.Iamproudofhim.（often）__________________________________________________6.ThereisgoodnewsonTV.(seldom)__________________________________________________7.IsMr.Wangontime?(always)__________________________________________________8.DoesTomplaybasketballafterschool?(often)__________________________________________________9.Benplaysbaseballwithhisfriendsonweekends.(sometimes)__________________________________________________10.Mysisterishappyatschool.(always)__________________________________________________11.She__________inherbed,butitisnotgoodtohereyes.(A)alwayssleeps(B)neverstudies(C)oftenstudies(D)seldomsleeps12.He__________hungryafterschool,soheeatsasnackbeforehegoeshome.(A)isnever(B)alwaysis(C)neveris(D)isalways13.A:Whatdoyouusuallydoonweekends?B:______________________________.(A)Iusuallyvisitmygrandmother.(B)IneverwatchTVonweekends.(C)Iseldomvisitmygrandfather.(D)Iusuallydon’tgotothezoo.