【#文档大全网# 导语】以下是®文档大全网的小编为您整理的《动词三单的变化规则》,欢迎阅读!
动词三单的变化规则
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, 再加-es,如:study-studies be动词的过去式为was, were;行为动词的过去式有规则变化和不规则变化两种,规则变化有以下几种情况: 1)直接在动词原形末尾加-ed. . work-----worked; ask------asked; 2)以e结尾的动词只加-d. . arrive-----arrived; like-----liked.
3)末尾只有一个辅音字母的重读闭音节,应先双写这个辅音字母,再加-ed. . shop-----shopped;
。
4)以"辅音字母+y"结尾的动词,先把y变成i,再加-ed. . carry----carried; study------studied. 有些动词变过去式是不规则的,.
fly------flew; break-----broke; teach-----taught. 这些需要像生单词一样记住.
现在分词的构成:
例词
现在分词构成规则
原形 现在分词
%
work working
一般动词+ ing visit visiting study studying
以e结尾的动词,去come 掉e+ ing
"
live coming leave living
leaving
以重读闭音节或rstop stopping 音节结尾的动词,末尾只有一个辅音字
begin beginning
》
母的词,要双写这个swim 辅音字母+ing
get
swimming
refer getting
referring
以ie结尾的重读开die 音节动词改ie为y+ing
tie
tying dying
本文来源:https://www.wddqxz.cn/a58c327d3386bceb19e8b8f67c1cfad6195fe9a4.html