句子结构及成分及物动词与不及物动词实义动词后面跟宾语时,这个动词就是及物动词。实义动词后面不跟宾语时,此时这个动词就是不及物动词。Thedooropened、Heopenedthedoor、Themeetingbeganatsix、<vi、>Webeganthemeetingatsix、<vt、>指出下列句中斜体动词就是及物动词还就是不及物动词,及物动词填vt、,不及物填vi、。Mostbirdscanfly、()Thechildrenareflyingkitesinthepark、()Ithappenedyesterday、()Mywatchstopped、()Thebabystoppedcryingwhenhesawhismother、()Shespokeatthemeetingthismorning、()ShallIbeginatonce?()Shebeganworkingasateacheraftersheleftschool、()()WhendidtheyleaveBeijing?()Theyleftlastweek、()实义动词、助动词与情态动词实义动词与助动词就是根据动词在句子中得含义与作用来划分得。实义动词也叫行为动词。实义动词指得就是那些意义完全且能够独立作谓语得动词。如:Helivesquitenear、(live“住”,有明确得意义,单独作谓语,为实义动词。)Ilikereading、(like“喜欢”,意思明确,单独作谓语,为实义动词。)Iboughtapenyesterday、(bought“买”,意义明确,单独作谓语,为实义动词。)助动词助动词得“助”就是“帮助”之意。因此,助动词就是指那些用来帮助构成时态、语态、虚拟语气、疑问句、否定句、倒装句与帮助强调得词。这些词本身无词汇意义或意义不完全,不能单独作谓语。帮助构成时态得:Theboyiscrying、Hehasarrived、Ihavebeenpaintingallday、DoeshelikeEnglish?Hedoesn’thavelunchathome、Treesareplantedinspring、Thehousehasbeenpulleddown、Ifhehadeyesterday,Iwouldn’thavemadesuchamistake、Sodidhelovehismotherthatheboughthermanypresentsonherbirthday、帮助构成强调意义得Hedideyesterday、(她昨天确实来过。did起强调作用,没有具体意义,就是助动词。)因此可以瞧出,常见得助动词为do,be,have,它们为基本助动词。一个词既可以作实义动词也可以作助动词,具体就是哪一种,主要瞧它们在句中得功能。Hedidhishomeworkatseveno’clock、Didhedohishomeworkyesterday?Hehashadbreakfast、指出下列斜体单词就是实义动词还就是助动词。Does()helike()swimming?Hedoes()like()swimming、Wheredoes()helive()?Hedoes()somewashingafterwork、Hehas()had()supperalready、Thebridgehas()been()built()now、Ihave()been()waiting()foryouallday、Hewas()struck()byastone、情态动词情态动词同助动词一样,不能单独作谓语,要与实义动词一起作谓语。因此,情态动词也称为情态助动词。情态动词同基本助动词得区别在于,基本助动词本身无意义,而情态动词有自己得意义。如:Hecanswimacrosstheriver、Youmuststayathome、Imightleavetomorrow、谓语与非谓语在英语中,一个主谓结构中只能有一个谓语,再出现动词时,要变成非谓语形式,即:在前面加to构成动词不定式,或在后面加-ing构成动名词或现在分词,或在后面加-ed构成过去分词。也就就是说,非谓语就是指:动词不定式、动名词、现在分词与过去分词。先找出句中得谓语,然后改正句中得错误,并说明原因。Getupearlyisgoodforourhealth、Iwantgohomenow、Myfavoritesportisplayfootball、Thereisabirdsingsinthetree、Theboysitsovertherelikessinging、Thehousewasbuiltlastyearhasbee