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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_______child_______photo________diary______day________foot________book_______dress________tooth_______sheep______box________strawberry_____thief_______fish______peach______sandwich______man______woman_______paper_______juice___________water________milk________rice__________tea__________二．动词第三人称单数变化规则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一、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________do_________teach________三．动词现在分词加ing的变化规则1．一般情况下，直接加ing，如：cook-cooking2．以不发音的e结尾，去e加ing，如：make-making,taste-tasting3．如果末尾是一个元音字母和一个辅音字母，双写末尾的辅音字母，再加ing，如：run-running,stop-stopping现在进行时专项练习：一、写出下列动词的现在分词：play________run__________swim_________make__________go_________like________write_________ski___________read________have_________sing________dance_________put_________see________buy_________love____________live_______take_________come________get_________stop_________sit________begin________shop___________四．动词过去式变化规则：1．一般在动词末尾加-ed，如：pull-pulled,cook-cooked2．结尾是e加d，如：taste-tasted3．末尾只有一个元音字母和一个辅音字母的重读闭音节，应双写末尾的辅音字母，再加-ed，如：stop-stopped4．以“辅音字母+y”结尾的，变y为i，再加-ed，如：study-studied5．不规则动词过去式：am,is-was,are-were,do-did,see-saw,say-said,give-gave,get-got,go-went,come-came,have-had,eat-ate,take-took,run-ran,sing-sang,put-put,fly-flew,make-made,read-read,write-wrote,draw-drew,drink-drank,ride-rode,speak-spoke,sweep-swept,swim-swam,sit-sat过去时练习一、写出下列动词的过去式is\am_________fly_______plant________are________drink_________play_______go________make_____does_________dance________worry________ask_____taste_________eat__________draw________put______throw________kick_________pass_______do________五．形容词比较级和最高级的变化规则：1.一般在词尾加er/est；2.以字母e结尾，加r/st；3.以一个元音字母和一个辅音字母结尾，应双写末尾的辅音字母，再加er/st；4.以“辅音字母+y”结尾，先把y变i，再加er/st5.部分双音节词和多音节词，在单词前面加more或mostimportantmoreimportantmostimportantdifficultmoredifficultmostdifficultinterestingmoreinterestingmostinterestingusefulmoreusefulmostusefulbeautifulmorebeautifulmostbeautiful6．不规则形容词比较级：①good/well-better-best②bad/ill-worse-worst③many/much-more-most④little-less-least⑤far-farther-farthest或further-furthest⑥old-older-oldest或elder-eldest⑦late-later-latest或latter-latest写出下列形容词的比较级和最高级old__________young________tall_______long________short________strong________big________small_______fat_________thin__________heavy______light________nice________good_________beautiful____________________high_________slow_______fast________low______late__________early_________far_________well_______