buy的过去式(break的过去式)

导读 你们好,我是九旅网的小编小九,buy的过去式,break的过去式很多人还不知道,现在让我们一起来看看吧!1、名词复数的规则变化 ___________

你们好,我是九旅网的小编小九,buy的过去式,break的过去式很多人还不知道,现在让我们一起来看看吧!

1、名词复数的规则变化 ___________________________________________________ 情况 构成方法 读音 例词 __________________________________________________ 一般情况 加 -s 1.清辅音后读/s/; map-maps 2.浊辅音和元音后 bag-bags 读/z/; car-cars ___________________________________________________ 以s,sh,ch, x等结尾的词 加 -es 读 /iz/ bus-buses watch-watches ___________________________________________________ 以ce,se,ze, (d)ge等结尾 的词 加 -s 读 /iz/ license-licenses ___________________________________________________ 以辅音字母+y 变y 为i 结尾的词 再加es 读 /z/ baby---babies ___________________________________________________ 动词过去式和过去分词有规则变化和不规则变化两种。

2、 1) 规则变化 一般在动词原形后加-ed look call open need looked called opened needed called opened needed ③但fix的过去式和过去 分词x不双写,为fixed. 以-e结尾的动词加-d move phone hope agree moved phoned hoped agreed hoped 以辅音字母加y结尾的动词,变y为i, 再加-ed study carry try studied studied carried studied [5stQdid] carried [5kArid] tried [traid] 以原音字母加y结尾的词,直接加-ed play enjoy stay played enjoyed stayed played [pleid] enjoyed [in5dVCid] stayed [steid] 末尾只有一个辅音字母的重读闭音节词,双写该辅音字母,再加-ed stop plan fit stopped planned fitted 以-r音节结尾的词,双写r字母, 再加-ed prefer refer preferred referred preferred 2) 不规则变化 英语中有些动词的过去式和过去分词形式变化不规则,可分为五种情况。

3、 1.动词原形、过去式和过去分词完全同形。

4、 例: 原形 过去式 过去分词 cut(切) hit(打) cast(扔) hurt(伤害) put(放) let(让) shut(关) cost(花费) set(放) rid(清除) cut hit cast hurt put let shut cost set rid cut hit cast hurt put let shut cost set rid 2.过去式与过去分词完全同形。

5、 例: 原形 过去式 过去分词 find(找到) pay(支付) leave(离开) lend(借出) meet(遇见) keep(保持) lose(丢失) teach(教) sit(坐) lead(引导) win(赢)除) found paid left lent met kept lost taught sat led won found paid left lent met kept lost taught sat led won 3.动词原形与过去分词同形 例: 原形 过去式 过去分词 come(来) run(跑) become(成为) came ran became come run become 4.动词原形、过去式、过去分词形式完全不同。

6、 例: 原形 过去式 过去分词 give(给) fly(飞) drink(喝) see(看见) go(去) know(知道) wear(穿) speak(说) gave flew drank saw went knew wore spoke given flown drunk seen gone known worn spoken 5.过去式和过去分词有两种形式 例: 原形 过去式 过去分词 burn(燃烧) burned burnt burned burnt learn(学习) learned learnt learned learnt smell(闻) smelled smelt smelled smelt spell (拼写) spelled spelt spelled spelt shine (照射) shined shone shined shone leap (跳) leaped leapt leaped leapt 提示 a. beat的过去式与原形同形: 比:beat(打击) beat(过去式) beaten(过去分词) b. lie有规则变化和不规则变化两种,含义不同 比:lie lied, lied(说谎) lay, lain(躺,位于) c. hang 有规则变化和不规则变化两种,含义不同 比:hang hanged, hanged(处绞刑) hung, hung(挂,吊) d. welcome(欢迎)一词是规则动词,不可误用为不规则动词 比:welcome welcomed, welcomed(正) welcome, welcome(误) e.不要将不规则动词误用为规则动词 比:hit(打) hit, hit(正) hitted, hitted(误)。

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