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Module 3 Now and then Unit 3 Language in use 你能总结比较级和最高级的变化规则吗？ long— longer—longest healthy—healthier—healthiest large—larger—largest good—better—best important—more important—most important Lead in 词 尾 变 化 原级 比较级 最高级 单音节词在词尾加-er(比较级)或-est(最高级) tall hard taller harder tallest hardest 以不发音的e结尾的词加-r或-st large wide larger wider largest widest 以重读闭音节结尾的词,应双写辅音字母再加-er或-est big hot bigger hotter biggest hottest 以辅音字母加y结尾的词变为i再加-er,或-est happy dry happier drier happiest driest 多音节词和多数双音节词在其前面加more 和most difficult popular more difficult more popular most difficult most popular 比较级和最高级的变化规则 Activity 3 Environment Personal health Study nature pollution traffic weather diet fitness illness medicine composition education homework revision Presentation Activity 4 1.be interested in doing sth. 对做某事感兴趣 2.hear about/of 听说 3.grow up 成长 4.thousands of 成千上万的 5.half the population of the country | 
