4、行为动词

  就是我们平时上课时说的动词,表示某一动作或行为。如:sweep、live等。

行为动词我们已学过它们的四种形式:原形、第三人称单数+s/es、现在分词(也叫动名词)+ing、过去式+ed。

   (1)动词第三人称单数变化规则:

A、一般直接加“s”,如:play – plays, visit – visits, speak – speaks ;B、以“s”,“x”,“sh”,“ch”结尾时,加“es”,如:catch – catches, watch – watches ;C、以“辅音字母+y”结尾时,变“y”为“i”再加“es”,如:carry – carries, study – studies 。

(2)现在分词(动名词)构成规则:

A、一般直接加“ing”,如:go – going, do – doing, look – looking ;B、以不发音的“e”结尾的单词,去“e” 加“ing”,如:take – taking, make – making, have – having ;C、以重读闭音节结尾的词,如末尾只有一个辅音字母,需要双写这个字母再加“ing”,如:put – putting, stop – stopping, run – running, get – getting, swim – swimming, sit – sitting, begin – beginning, jog – jogging, forget – forgetting 。

(3)过去式构成规则:

A、一般直接加“ed”,如:plant – planted, visit – visited, pick – picked ;B、以不发音字母“e”结尾,直接加“ed”,如:like – liked, hope – hoped, taste – tasted ;C、以“辅音字母+y”结尾时,变“y”为“i”再加“ed”,如:try – tried, carry – carried, study – studied ;D、有些动词要双写最后一个字母,再加“ed”,如:stop – stopped ;E、还有很多动词的过去式是不规则的,请记忆:是-am(be)-was-being;是-are(be)-were-being;是-be-was, were-being;成为-become-became-becoming;开始-begin-began-beginning;弯曲-bend-bent-bending;吹-blow-blew-blowing;买-buy-bought-buying;能-can-could-----;捕捉-catch-caught-catching;选择-choose-chose-choosing;来-come-came-coming;切-cut-cut-cutting;做-do, does-did-doing;画-draw-drew-drawing;饮-drink-drank-drinking;吃-eat-ate-eating;感觉-feel-felt-feeling;发现-find-found-finding;飞-fly-flew-flying;忘记-forget-forgot-forgetting;得到-get-got-getting;给-give-gave-giving;走-go-went-going;成长-grow-grew-growing;有-have, has-had-having;听-hear-heard-hearing;受伤-hurt-hurt-hurting;保持-keep-kept-keeping;知道-know-knew-knowing;学习-learn-learned, learnt-learning;允许,让-let-let-letting;躺-lie-lay-lying;制造-make-made-making;可以-may-might----;意味-mean-meant-meaning;会见 -meet-met-meeting;必须-must-must----;放置-put-put-putting;读-read-read-reading;骑、乘-ride-rode-riding;响、鸣-ring-rang-ringing;跑-run-ran-running;说-say-said-saying;看见-see-saw-seeing;将-shall-should----;唱歌-sing-sang-singing;坐下-sit-sat-sitting;睡觉-sleep-slept-sleeping;说-speak-spoke-speaking;度过-spend-spent-spending 。

练一练:

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