规则动词过去式的变化规则
1.一般情况在词尾加ed
2.以不发音的e结尾的动词,直接加ed
like___ liked dance___ danced
末尾只有一个辅音字母的重读闭音节动词，先双写这个辅音字母，再加ed Stop__ stopped plan__ planned
以“元音字母＋y”结尾的动词，直接加ed
play__ played stay__ stayed
5.以辅音字母＋y结尾的动词，变y为i,再加ed
study__studied carry__carried
练习巩固
look —visit —clean—wash—watch—
listen—
laugh—
live—hope—use—like—
stop—plan—
study—carry—worry—play—stay—
不规则动词的变化规则（死记硬背）
have—sleep—read —hurt—see—drink—
go—ride—eat—take—buy—fall—
feel—think—wake—am/is—are—do—
can—
形容词比较级的变化规则
一般在原级词尾加er
以不发音的字母e结尾的词加r
末尾只有一个辅音字母的重读闭音节词，应先双写这个辅音字母再加er
以辅音字母加y结尾的双音节词变y为i再加er
练习巩固
young—old—tall—short—long—smart—
low—well/good—
small—strong—
fine—late—
big—thin—fat—heavy—easy—lucky—early—。