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1、动词过去分词和过去式区别,过去分词是非谓语动词的一种形式，规则动词的过去分词由动词原形加上-ed构成,不规则过去分词需要个别加以记忆,过去分词作定语时一般表示被动的意思，可以作表语或宾语补足语表示状态,还有完成的意思,可以用来构成现在完成时和过去完成时。例如： Wewere(excited)tohearit. 听了这事我们很激动。Iheardthedoor(opened). 我听见门给谁打开了。,动词的过去式和过去分词的区别： 动词的过去式作一般过去时态中的谓语： He worked at the factory one year ago. 一年前他在那家厂工作。 动词的过去分词用法： 1)作
2、完成时态中的谓语成分： I have finished my homework.我已经把作业完成了。 2)帮助构成被动语态： The cake has been eaten up. 蛋糕已经被吃完了。(完成、被动),3)作非谓语，在句子中作定语、状语等成分： Heated, water changes into steam. (时间状语) Given more attention, the flower could have grown better. (条件状语) Isthereanythingplannedfortomorrow? (后置定语),动词的过去式可分为规则动词和不规则动词。 规
3、则动词的过去式变化如下： 1）一般情况下，动词词尾加 -ed ，如： worked played wanted acted 2）以不发音的 -e 结尾动词，动词词尾加 -d， 如： lived moved decided declined hoped judged raised wiped 3）以辅音字母 + y结尾的动词，把-y变为-i 再加-ed，如： studied tried copied justified cried carried embodied emptied,4）以一个辅音字母结尾的重读闭音节动词， 双写词尾辅音字母，再加 -ed，如： stopped begged fre
4、tted dragged dropped planned dotted dripped 5）注：不规则动词的过去式变化规律性不强，须多加记忆。 go - went，make - made， get - got ，buy - bought ，come - came ，fly-flew ，is/am-was， are-were ，see-saw ，bring-brought，do-did，teach-taught, think-thought, are-were, say-said,sit-sat. read-read, spend-spent.（部分）,规则动词的过去分词的构成规则与规则动词的
5、过去式的构成规则相同。四点变化规则： (1)一般动词，在词尾直接加“ ed ”。 work-worked-worked ,visit-visited-visited (2)以“ e ”结尾的动词，只在词尾加“ d ”。 live-lived-lived , (3)以“辅音字母 + y ”结尾的动词，将 y 变为 i ，再加“ ed ”。 study-studied-studied ,cry-cried-cried ,(4)重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加“ ed ”。 stop-stopped-stopped , drop-dropped-dropped,draw
6、 drew- drawn drink -drank -drank/drunk eat -ate -eaten fall -fell -fallen feed-fed -fed stand stood- stood sing- sang -sung give gave- given tell told- told know- knew -known,不规则动词,-“I _ his telephone number.” - “I have his number, but I _ to bring my phone book.” A. forget, forgetB. forgot, forgot
7、C. forget, forgotD. forgot, forget,forget的时态用法,【分析】此题容易误选A，认为“忘记”是现在的事。仔细体会一下对话的语境：第一个人说“我忘记他的电话号码了”，这个“忘记”应该是现在的事，即现在忘记了，要不然就没有必要同对方说此话了，故第一空应填 forget； 第二个人说“我有他的号码，但我忘记带电话本了”，这个“忘记”应该是过去的事，即过去忘记带电话本，所以现在电话本不在身上(注意句中的转折连词 but)，故第二空应填 forgot。, Oh, I _ where he lives. Dont you carry you address book?
8、 - No, I _ to bring it. A. forget, forgetB. forgot, forgot C. forget, forgotD. forgot, forget,答案选C，理由同上。,(1) If he _ my advice, he wouldnt have lost his job. A. followedB. should follow C. had followedD. would follow (2) If we _ the other road, we might have arrived here in time for the meeting. A. takeB. had taken C. tookD. have taken,C,B,(3) John went to the hospital alone. If he _ me about it, I would have gone with him. A. should tellB. tells C. toldD. had told,D,