过去式与过去分词构成方法.docVIP

过去式和过去分词的构成方法 分规则变化和不规则变化两种。不规则变化需逐个记忆，规则变化遵循以下原则： (1) 一般情况下，在动词后加ed构成：work / worked, stay / stayed, shout / shouted等。 (2) 在以-e结尾动词后只加d：close / closed, like / liked, live / lived, smile / smiled等。 (3) 以辅音字母加y结尾的动词，应将y改为i 再加-ed：study / studied, carry / carried等。 (4) 以重读闭音节或r音节结尾且末尾只有一个辅音字母动词，要双写末尾的辅音字母再加-ed：stop / stopped, admit / admitted, refer / referred, prefer / preferred等。 【注】(1) 以字母l结尾的动词，若末尾一个音节为重读音节，则必须双写l再加-ed，如control / controlled，但若末尾一个音节为非重读音节，则可双写l(英国英语)或不双写l(美国英语)，如travel / travel(l)ed。 (2) 动词picnic(野餐)的过去式和过去分词是picnicked，不是picniced。 (3) 词尾-ed 读音规则是：在清辅音后读作[t]，元音和浊辅音后读作[d]，在辅音[t]或[d]后读作[id]。 动词过去式的练习题 一 写出下列动词的过去式 is\am_________ fly_______ plant________ are ________ drink_________ play_______ go________ make ________ does_________ dance________ worry________ ask _____ taste_________ eat__________ draw________ put ______ throw________ kick_________ pass_______ do??________ Be动词的过去时练习（1） 二 1.? ?? ???I _______ at school just now. 2.? ?? ???He ________ at the camp last week. 3.? ?? ???We ________ students two years ago. 4.? ?? ???They ________ on the farm a moment ago. 5.? ?? ???Yang Ling ________ eleven years old last year. 6.? ?? ???There ________ an apple on the plate yesterday. 7.? ?? ???There ________ some milk in the fridge on Sunday. 8.? ?? ???The mobile phone _______ on the sofa yesterday evening. 三?句型转换 1.????? It was exciting. ??否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：__________________________________________ 2. All the students were very excited. ??否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：__________________________________________ 3. They were in his pocket. ??否定句：________________________________________________ 一般疑问句：____________________________________________ 肯、否定回答：__________________________________________ ? 一、用be动词的适当形式填空 1.? ?? ???I ______ an English teacher now. 2.? ?? ???She _______ h