Unit 7What’s the highest mountain in the world?Section A 1a-2dGrammar Focus形容词的比较级和最高级 comparatives and superlatives with adj. and adv.late later - latestearly earlier – earliestbigbigger- biggestfluently/difficultmore～, most～重读闭音节、末尾只有一个辅音字母双写加 –er 或 –est单音节词在词尾比较级加- er或最高级加- est以e结尾的词，只需加－r 或－st以辅音字母加 y 结尾双音节词变 y 为 i 加 –er 或 –est部分双音节和多音节词在原级前加 more 或 mosttalltaller- tallest cheap, cold, small, warm, young, highfine, nice, safehappy, busy, dirty, easy, lazy, prettyfat, hot, red, thin, wet, sad quickly, heavily, useful, interesting, popular,tired, 形容词和副词比较级和最高级构成 (规则变化) 不规则变化 good / well – better - best much / many – more - most bad / badly / ill – worse – worst little – less – least far – farther/ further– farthest – furthest old – older/ elder – oldest / eldest形容词和副词比较级的用法 1.Who runs faster, he or she?2.He runs faster than she.3.He runs much faster than she.4.He becomes healthier and healthier.5.The more you exercise, the healthier you will be.6.She is less healthy than he.1.表示两者之间的选择, 可用“Which/Who … + 比较，…or…?”.2.表示两者之间的比较，通用连词 than 引导， 表示“更······一些”．3.much/far/a lot |
