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英文中的词形转换. 名词的复数. 1. 直接加 s, e.g.: books, trees 2. 以“ s, x, ch, sh” 结尾,加 es, e.g.: buses, boxes, benches, dishes 3. 以“ f, fe” 结尾,变成 ves, e.g.: leaves, knives 4. 以“ o” 结尾,元音字母 +o 结尾,加 s, 辅音字母 +o 结尾,加 es, e.g.: radios, potatoes 5. 以辅音字母 +y 结尾,变 y 为 i, 再加 es, e.g.: cities
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名词的复数 • 1.直接加s, e.g.: books, trees • 2.以“s, x, ch, sh”结尾,加es, e.g.: buses, boxes, benches, dishes • 3.以“f, fe”结尾,变成ves, e.g.: leaves, knives • 4.以“o”结尾,元音字母+o结尾,加s, 辅音字母+o结尾,加es, e.g.: radios, potatoes • 5.以辅音字母+y结尾,变y为i, 再加es, e.g.: cities • 6.单复同形, e.g.: sheep, Chinese
动词的第三人称单数 • 1.直接加s, e.g.: writes, enjoys • 2.以“o”结尾,加es, e.g.: does, goes • 3.以辅音字母+y结尾,变y为i, 再加es, e.g.: studies, beautifies • 4. 以“s, x, ch, sh”结尾,加es, e.g.: misses, relaxes, teaches, finishes
动词的现在分词 • 1.一般:直接加ing, e.g.: opening, telling • 2.以不发音的e结尾,去e加ing, e.g.: writing, closing • 3.重读闭音节,以一个辅音字母结尾,双写结尾的辅音字母,再加ing, e.g.:beginning, stopping
规则动词的过去式和过去分词 • 1.一般:直接加ed, e.g.: opened, listened • 2.以不发音的e结尾,去e加ed, e.g.: waved, closed • 3.重读闭音节,以一个辅音字母结尾,双写结尾的辅音字母,再加ed, e.g.:canned, stopped • 4.以辅音字母+y结尾,变y为i, 再加ed, e.g.: studied
单音节和少数双音节形容词的 比较级和最高级 • 1.一般:直接加er, est, e.g.: smaller, smallest • 2.以不发音的e结尾,去e加er, est, e.g.: nicer, nicest • 3.重读闭音节,以一个辅音字母结尾,双写结尾的辅音字母,再加er, est, e.g.:bigger, biggest • 4.以辅音字母+y结尾,变y为i, 再加er, est, e.g.: happier, happiest