电大英语(语法与练习)详解.ppt

规则动词过去式的构成 1、一般情况下，加 -ed。 ask -- asked help -- helped watch -- watched 2、结尾是“e”的词，加 -d。 dance -- danced love -- loved live -- lived 3、重读闭音节词，且末尾只有一个辅音字母的，先双写 这个辅音字母，再加 -ed。 stop -- stopped drop -- dropped beg -- begged 4、以辅音字母加 y 结尾的词，改 y 为 i，再加 -ed。 carry -- carried study -- studied hurry -- hurried Grammar * 过去式加 -ed 的读音 1、在清辅音后，读清辅音 / t / 。 worked / kt / helped / pt / passed / st / washed / ?t / watched / t ?t / 2、在浊辅音和元音后，读浊辅音 / d / 。 played / eid / carried / id / answered / ?d / lived / vd / used / zd / called / ld / 3、在 / t, d / 音后面, 读 / id / 。 wanted / tid / needed / did / Grammar * grow -- grew know -- knew throw -- threw blow -- blew write -- wrote drive -- drove ride -- rode get -- got forget -- forgot lend -- lent send -- sent spend -- spent say -- said */sed/ pay -- paid stand -- stood understand -- understood let -- let put -- put cut -- cut read -- read* am, is -- was are -- were do -- did go -- went have -- had see -- saw can -- could may -- might dig -- dug eat -- ate find -- found make -- made hear -- heard run -- ran take -- took hold -- held speak -- spoke leave -- left keep -- kept sleep -- slept sweep -- swept tell -- told sell -- sold begin -- began sing -- sang sit -- sat swim -- swam ring -- rang give -- gave bring -- brought buy -- bought think -- thought teach -- taught catch -- caught come -- came become -- became 不规则动词的过去式 Grammar * 写出下列动词的过去式： run borrow grow watch write smile open begin swim carry study finish use live wake keep say clean buy play learn see read stop go think be happen give become get rain tour stay pass answer 语法练习 * 用括号里动词的适当形式填空。 1. He __________ (read) that book last week. 2. Last night he ___________