动词第三人称单数词尾变化有三种形式。(1)一般动词在词尾加-s,-s在清辅音后读/s/,在浊辅音或元音后读/z/,ds读/dz/,ts读/ts/。如:help→helps,know→knows,get→gets,read→reads(2)以字母s,x,ch,sh或有些以o结尾的动词加-es,-es读/iz/。如:guess→guesses,fix→fixes,teach→teaches,wash→washesgo→goes,do→does(3)以辅音字母+y结尾的动词,先变y为i,再加-es,-ies读/iz/。如:carry→carries,fly→flies注:在play→plays,say→says中,字母y前为元音字母,第三人称单数形式直接在动词后面加-s。(4)特殊词例外。如:be→is,have→has写出下列动词的第三人称单数形式1.eat_________2.get_________3.like_________4.make_________5.drink_________6.play_________7.love_________8.read_________9.listen_________10.do_________11.go_________12.watch________13.wash________14.finish________15.have_________eatsgetslikesmakesdrinksplayslovesreadslistensdoesgoeswatcheswashesfinisheshas本模块出现了大量的表示不确定时间的副词,按顺序从大到小:always(总是),often(经常),usually(通常),sometimes(有时),seldom(很少),never(从不)等,这些副词表频度,表示经常性或习惯性的行为。在句中位置:在be(am,is,are)动词,情态动词(can)或助动词(do,does)之后,行为动词之前。1.Damingalwaysgetsbirthdaypresents!2.Sheoftengoestothecinema.3.WhatdoyouusuallydoataChinesebirthdayparty?4.Wesometimesgivebirthdaycards.6.Mymothernevermakesabirthdaycake.Ioftengetupatfivepastsix.HeusuallyplaysbasketballonSaturdaymorning.Theyalwayshelpothers.Youmustnevertellhim.SheisoftenathomeonSundays.WhatdoyouusuallydoonSundays?