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实意动词一般过去时的变化规则：,重读闭音节,三要素 1）一个元音字母，必须是重读音节; （2）元音字母发短元音。 （3）以一个辅音音素结尾； 改变时态或形容词变比较级和最高级时， 重读闭音节需要双写末尾辅音字母. 如: runrunning swim-swimming jogjogging sit-sitting begin-beginning (重读在gin这个音节上，相当于把gin改成双写的) .,forbid - (重读闭音节，双写). prohibit - (重读在第二音节，非重读闭音节，不双写). prefer - （重读闭音节，双写） offer - （重读第一音节，非重读闭音节，不双写）,forbidding forbade forbidden,prohibiting prohibited,preferring preferred,offering offered,knock- pick- walk- push- like- finish- stop- notice- answer-,enter- hurry- live- count- decide- close- look- shop- open-,knocked,picked,walked,pushed,liked,finished,stopped,noticed,answered,entered,hurried,lived,counted,decided,closed,looked,shopped,opened,特殊变法 P 274,动词的不规则形式 A-A-A型 put-put- put read-read-read set-set-set let-let-let cut-cut-cut shut-shut-shut hit-hit-hit cost-cost-cost burst-burst-burst forecast-forecast-forecast broadcast-broadcast quit-quit-quit,找出不属于A-A-A型的动词： put，give, hit， cut， set， let， cost， shut， buy, read， see, burst，forecast，broadcast, beat give-gave-given buy-bought-bought see-saw-seen beat-beat-beaten,A-B-B型 bring- buy- bleed- bend- burn- build- catch- deal- dig- fight- feed- find- get- hold- hear- have-,brought-brought,bought-bought,bled-bled,bent-bent,burnt-burnt,built-built,caught-caught,dealt-dealt,dug-dug,fought-fought,fed-fed,found-found,got-got,held-held,heard-heard,had-had,hang- keep- lay- light- lead- leave- lend- send- spend- lose- learn- mean- meet- make- pay- shoot-,hung-hung,kept-kept,laid-laid,lit-lit,led-led,left-left,lent-lent,sent-sent,spent-spent,lost-lost,learnt-learnt,meant-meant,met-met,made-made,paid-paid,shot-shot,sleep- sweep- sell- smell- spell- spoil- say- sit- spit- shine- stand- think- teach- tell- win- understand-,slept-slept,swept-swept,sold-sold,spelt-spelt,spoilt-spoilt,said-said,sat-sat,spat-spat,shone-shone,stood-stood,thought-thought,smelt-smelt,taught-taught,told-told,won-won,understood-understood,A-B-C go- see- come- become- drink- run- begin- sing- ring- swim- sink- give- blow- know- break- choose- draw- drive- eat- fall- fly-,went-gone,saw-seen,came-come,drank-drunk,ran-run,rang-rung,sang-sung,sank-sunk,gave-given,blew-blown,knew-known,became-become,broke-broken,chose-chosen,ate-eaten,flew-flown,began-begun,swam-swum,drew-drawn,drove-driven,fell-fallen,take- mistake- speak- freeze- forbid- forget- forgive- steal- write- rise- grow- throw- wake- wear- show- hide- lie-,took-taken,mistook-mistaken,spoke-spoken,forbade-forbidden,forgot-forgotten,forgave-forgiven,wrote-written,rose-risen,grew-grown,threw-thrown,froze-frozen,woke-woken,wore-worn,showed-shown,lay-lain,stole-stolen,hid-hidden,
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