,,经常、,,have/-ed,,主语之后didn’,,,were,,were向前跑,::螈如:hit---hit hurt---hurt蒄let---let cost---cost肄read---read cut---cut薁put---put蒇记忆方法:击中,受伤,让,花费,读,砍,,就可变为过去时蒅如:sit---sat swim---swam芃give---gave drink---drank薀ring---rang begin---began蚄sing----a(o)ught结尾蚀如:catch---caught teach---taught芈bring---brought buy---bought螄fight---fought think---thought肂buy---bought蒂记忆方法:有a则a,-eep结尾的动词过去时把-eep改为-ept膈如:keep---kept sweep---swept蒃sleep----ow结尾的动词的过去时是把-ow改为-ew肀如:grow—grew blow—blew膈know—knew throw—-end结尾的动词的过去时是把-end改为-ent薂如:lend---lent spend---spent衿send---se
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