三单规则 三单形式变化规则？
\u4e09\u5355\u5f62\u5f0f\u53d8\u5316\u89c4\u5219\u662f\u4ec0\u4e48\uff1f1\u3001\u5927\u591a\u6570\u52a8\u8bcd\u5728\u8bcd\u5c3e\u52a0\u201cs\u201d\u3002\u5982\uff1astop-stop\uff0csmake-makes\uff0cread-reads\uff0cplay-plays\u3002
2\u3001\u4ee5\u8f85\u97f3\u5b57\u6bcd\u52a0\u201cy\u201d\u7ed3\u5c3e\u7684\uff0c\u8981\u5148\u5c06\u201cy\u201d\u53d8\u4e3a\u201ci\u201d\uff0c\u7136\u540e\u518d\u52a0\u201ces\u201d\u3002\u5982\uff1afly-flies\uff0ccarry-carries\uff0cstudy-studies\uff0cworry-worries\u3002
3\u3001\u4ee5\u201cs\uff0cx\uff0cch\uff0csh\u201d\u7ed3\u5c3e\u7684\uff0c\u5728\u8bcd\u5c3e\u52a0\u201ces\u201d\u3002\u5982\uff1ateach-teaches\uff0cwatch-watches\u3002
4\u3001\u4ee5\u201co\u201d\u7ed3\u5c3e\u7684\u52a8\u8bcd\uff0c\u52a0\u201ces\u201d\u3002\u5982\uff1ago-goes\uff0cdo-does\u3002
\u6269\u5c55\u8d44\u6599
\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u7684\u7528\u6cd5\uff1a
\u4e00\u3001\u4eba\u79f0\u4ee3\u8bcdhe\uff0cshe\uff0cit\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u4e8c\u3001\u5355\u4e2a\u4eba\u540d\u3001\u5730\u540d\u6216\u79f0\u547c\u4f5c\u4e3b\u8bed\uff0c\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u4e09\u3001\u5355\u6570\u53ef\u6570\u540d\u8bcd\u6216\u201cthis/that/the+\u5355\u6570\u53ef\u6570\u540d\u8bcd\u201d\u4f5c\u4e3b\u8bed\u65f6\uff0c\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u56db\u3001\u4e0d\u5b9a\u4ee3\u8bcdsomeone\uff0csomebody\uff0cnobody\uff0ceverything\uff0csomething\u7b49\u53ca\u6307\u793a\u4ee3\u8bcdthis\uff0cthat\u4f5c\u4e3b\u8bed\u65f6\uff0c\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u4e94\u3001\u4e0d\u53ef\u6570\u540d\u8bcd\u4f5c\u4e3b\u8bed\u65f6\u4e3a\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u516d\u3001\u5f53\u6570\u5b57\u6216\u5b57\u6bcd\u4f5c\u4e3b\u8bed\u65f6\uff0c\u770b\u4f5c\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u4e09\u5355\u5f62\u5f0f\u53d8\u5316\u89c4\u5219\u5982\u4e0b\uff1a
\u7b2c\u4e00\u4eba\u79f0\u5c31\u662f\u201c\u6211\u201d\u548c\u201c\u6211\u4eec\u201d\u3002
\u7b2c\u4e8c\u4eba\u79f0\u662f\u201c\u4f60\u201d\u548c\u201c\u4f60\u4eec\u201d\u3002
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\u4e2d\u6587\u4e2d\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u7684\u4e09\u4e2a\u201c\u4ed6\u201d\u5199\u6cd5\u4e0d\u4e00\u6837\uff0c\u8bfb\u97f3\u5374\u76f8\u540c\u3002\u4f46\u5728\u82f1\u8bed\u4e2d\uff0c\u4e09\u4e2a\u201c\u4ed6\u201d\u65e2\u6709\u4e0d\u540c\u7684\u8bfb\u97f3\uff0c\u4e5f\u6709\u4e0d\u540c\u7684\u5199\u6cd5\uff0c\u5206\u522b\u662fhe, she, it\u3002\u5728\u7b2c\u4e09\u4eba\u79f0\u540e\u4e0d\u80fd\u4f7f\u7528\u52a8\u8bcd\u7684\u539f\u5f62\uff0c\u800c\u8981\u5728\u76f8\u5e94\u7684\u52a8\u8bcd\u540e\u52a0s\u6216es\u3002
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\u6269\u5c55\u8d44\u6599\uff1a
\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u7684\u7528\u6cd5\uff1a
\u4e00\u3001\u4eba\u79f0\u4ee3\u8bcdhe, she, it\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u5982\uff1aHe likes watching TV. \u4ed6\u559c\u6b22\u770b\u7535\u89c6\u3002
She has lunch at twelve. \u5979\u5341\u4e8c\u70b9\u5403\u5348\u9910\u3002
It looks like a cat. \u5b83\u770b\u8d77\u6765\u50cf\u53ea\u732b\u3002 \u3000
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\u5982\uff1a\u2460Han Mei looks like her mother. \u97e9\u6885\u770b\u8d77\u6765\u50cf\u5979\u7684\u6bcd\u4eb2\u3002 \u3000
\u2461Beijing is in China. \u5317\u4eac\u5728\u4e2d\u56fd\u3002 \u3000
\u2462Uncle Wang often makes cakes. \u738b\u53d4\u53d4\u7ecf\u5e38\u505a\u86cb\u7cd5\u3002 \u3000
\u4e09\u3001\u5355\u6570\u53ef\u6570\u540d\u8bcd\u6216"this/that/the+\u5355\u6570\u53ef\u6570\u540d\u8bcd"\u4f5c\u4e3b\u8bed\u65f6\uff0c\u662f\u7b2c\u4e09\u4eba\u79f0\u5355\u6570\u3002
\u5982\uff1a\u2460A horse is a useful animal. \u9a6c\u662f\u6709\u7528\u7684\u52a8\u7269\u3002 \u3000
\u2461This book is yours. \u8fd9\u672c\u4e66\u662f\u4f60\u7684\u3002 \u3000
\u2462That car is red. \u90a3\u8f86\u5c0f\u6c7d\u8f66\u662f\u7ea2\u8272\u7684\u3002 \u3000
\u2463The cat is Lucy's. \u8fd9\u53ea\u732b\u662f\u9732\u831c\u7684\u3002 \u3000
现在分词变化规则
1．在一般情况下，动词可直接加-ing，如：do→doing。
2．以重读闭音节结尾的动词，一般要双写尾字母加-ing，规则是：在重读闭音节里，末尾只有一个辅音字母，辅音字母前只有一个元音字母时，要双写这个辅音字母如：sit→sitting。Swim-swimming,put-putting,get-getting,begin-beginning,run-running ,stop-stopping,
travel-travelling，let-letting,get-getting,cut-cutting,hit-hitting, plan- planning
网游虾的这个：辅－元－辅好像更好记
3．去掉词尾的哑e再加-ing，如：take→taking,love-loving ,make-making like-liking live-living,use-using,move-moving,。
动词第三人称单数变化规则如下：
1) 一般情况下，动词后面直接加 -s. 例如： works gets says reads
2) 以ch,sh,s,x 或 o 结尾的动词,在后面加 -es。
例如： go- goes teach-,teaches,wash-washes ,brush-brushes ,catch-catches,do-does ,fix -fixes
3) 以辅音字母 + y结尾的动词，把 y变为 i 再加 -es. 例如：study- studies try-tries carry-carries,fly-flies
动词过去式变化规则:
1．规则动词过去式的变化规则
1）一般在动词词尾加ed。
work—worked,rain—rained,watch—watched
2）如果动词以字母e结尾，变过去式时直接在词尾加d。
love—loved,live—lived,change—changed
3）如果动词是以一个元音字母加上一个辅音字母结尾的重读闭音节单词，变过去式时，要双写这个辅音字母，再加ed。
stop—stopped,plan—planned,drop—dropped， ，fit， prefer， travel
4）如果动词是以辅音字母加y结尾，变过去式时要变y为i再加ed。
study—studied,carry—carried,try—tried play除外
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