单词词形变化规则.ppt
《单词词形变化规则.ppt》由会员分享,可在线阅读,更多相关《单词词形变化规则.ppt(11页珍藏版)》请在三一文库上搜索。
1、单词词形变化规则,一、复数(名词):,1一般情况下,直接加-s, 如:book-books, bag-bags, cat-cats, bed-beds 2以s. x. sh. ch结尾,加-es,如:bus-buses, box-boxes, brush-brushes, watch-watches 3.以“辅音字母+y”结尾,变y为i, 再加-es,如:family-families, strawberry-strawberries 4以“f或fe”结尾,变f或fe为v, 再加-es,如:knife-knives 5不规则名词复数: man-men, woman-women, policem
2、an-policemen, policewoman-policewomen, mouse-mice child-children foot-feet,. tooth-teeth fish-fish, people-people, Chinese-Chinese, Japanese-Japanese,二第三人称单数(动词):,1一般情况下,直接加-s, 如:cook-cooks, milk-milks 2以s. x. sh. ch. o结尾,加-es, 如:guess-guesses, wash-washes, watch-watches, go-goes 3以“辅音字母+y”结尾,变y为i,
3、再加-es,如:study-studies,三现在分词(动词):,1一般情况下,直接加ing, 如:cook-cooking 2以不发音的e结尾,去e加ing,如:make-making, taste-tasting 3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,四过去式和过去分词(动词):,1一般在动词末尾加-ed,如:pull-pulled, cook-cooked 2结尾是e加d,如:taste-tasted 3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
4、-stopped,4以“辅音字母+y”结尾的,变y为i, 再加-ed,如:study-studied 5不规则动词过去式和过去分词: (1)awake-awoke-awoken (2)be(am,is,are)-was/were-been (3)bear-bore-born (4)begin-began-begun (5)blow-blew-blown (6)break-broke-broken (7)choose-chose-chosen (8)do-did-done (9)draw-drew-drawn (10)drink-drank-drunk (11)drive-drove-drive
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 单词 词形 变化 规则
链接地址:https://www.31doc.com/p-2092028.html