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语法及练习3名词复数和动词三单一、名词复数规则1．一般情况下，直接加-s，如：book-books，bag-bags，cat-cats，bed-beds2．以s。x。sh。ch结尾，加-es，如：bus-buses，box-boxes，brush-brushes，watch-watches3．以“辅音字母+y”结尾，变y为i，再加-es，如：family-families，strawberry-strawberries4．以“f或fe”结尾，变f或fe为v，再加-es，如：knife-knives5．不规则名词复数：man-men，woman-women，policeman-policemen，policewoman-policewomen，mouse-micechild-childrenfoot-feet，。tooth-teethfish-fish，people-people，Chinese-Chinese，Japanese-Japanese练习：写出下列各词的复数。I_________him_________this_______her______watch_______book_______child_______photo________diary______day________foot________dress________tooth_______sheep______box_______strawberry_____thief_______yo-yo______peach______sandwich______man______woman_______paper_______people________二．动词三单的变化规则1．一般情况下，直接加-s，如：cook-cooks，milk-milks2．以s。x。sh。ch。o结尾，加-es，如：guess-guesses，wash-washes，watch-watches，go-goes3．以“辅音字母+y”结尾，变y为i，再加-es，如：study-studies练习：写出下列动词的第三人称单数。drink________go_______stay________make________look_________have_______pass_______carry____come________watch______plant_______fly________study_______brush________teach_______
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