2017新目标人教版八年级英语上册形容词比较级最高级规则

一 形容词 副词的比较级和最高级的构成规则 1 一般单音节词和少数以 er ow 结尾的双音节词 比较级在后面 加 er 最高级在后面加 est 1 单音节词 如 small smaller smallest short shorter shortest tall taller tallest great greater greatest 2 双音节词 如 clever cleverer cleverest narrow narrower narrowest 2 以不发音 e 结尾的单音节词 比较在原级后加 r 最高级在原级 后加 st 如 large larger largest nice nicer nicest brave braver bravest 3 在重读闭音节 即 辅音 元音 辅音 中 先双写末尾的辅音字母 比较级加 er 最高级加 est 如 big bigger biggest hot hotter hottest fat fatter fattest wet wetter wettest 4 以 辅音字母 y 结尾的双音节词 把 y 改为 i 比较级加 er 最高级加 est 如 easy easier easiest heavy heavier heaviest busy busier busiest happy happier happiest 5 其他双音节词和多音节词 比较级在前面加 more 最高级在前 面加 most 如 beautiful more beautiful most beautiful different more different most different easily more easily most easily 6 有少数形容词 副词的比较级和最高级是不规则的 必须熟记 如 good better best well better best bad worse worst ill worse worst old older elder oldest eldest many much more most little less least far further farther furthest farthest 注意 1 形容词最高级前通常必须用定冠词 the 副词最高级前可不用 例句 The Sahara is the biggest desert in the world 2 形容词 most 前面没有 the 不表示最高级的含义 只表示 非常 It is a most important problem It is a very important problem 二 形容词 副词的比较级和最高级的用法 1 A be 形容词比较级 than B 意思为 A 比 B 更 如 This tree is taller than that one 这棵树比那棵树高 注意 在含有连词 than 的比较级中 前后的比较对象必须是同一范畴 即同类事物之间的比较 be year s older than I am two years older than him 2 比较级 and 比较级 或 more and more 原级 表示 越 来越 如 It is getting warmer and warmer when spring comes 春天来了 天气变得越来越暖和了 The wind becomes heavier and heavier 风变得越来越大 Our town is becoming more and more beautiful 我们的学校变得越来越美丽 3 在含有 or 的选择疑问句中 如果有两者 供选择 前面的形容词要 用比较级形式 如 Who is taller Tim or Tom 谁更高 Tim 还是 Tom 4 the 比较级 the 比较级 表示 越 越 The more money you make the more you spend 钱你赚得越多 花得越多 The sooner the better 越快越好 5 表示倍数的比较级用法 A is times the size height length width of B 如 The new building is three times the height of the old one 这座新楼比那座旧楼高三倍 新楼是旧楼的四倍高 A is times as big high long wide large as B 如 Asia is four times as large as Europe 亚洲是欧洲的四倍大 亚洲比欧洲大三倍 A is times larger higher longer wider than B 如 Our school is twice bigger than yours 我们学校比你们学校大两倍 6 形容词 副词的最高级形式主要用来表示三者或三者以上人或事 物的比较 表示 最 的意思 句子中有表示范围的词或短语 如 of the three in our class 等等 如 Of the three he is the most hard working He is the tallest in our class 7 否定词语 比较级 否定词语 so as 结构表示最高级含义 Nothing is so easy as this Nothing is easier than this This is the easiest thing 8 比较级与最高级的转换 比较级 than any other 单数名词 Mike is the most intelligent in his class Mike is more intelligent than any other student in his class 7 修饰比较级和最高级的词 1 可修饰比较级的词 a bit a little much a lot even 注意 使用最高级要注意将主语包括在比较范围内 错 Tom is the tallest of his three brothers 对 Tom is the tallest of the three brothers 2 下列词可修饰最高级 by far 非常 远远超过 远比 far much mostly almost This hat is nearly almost the biggest 注意 a very 可修饰最高级 用于形容词最高级前 以加强语气 完全地 真正地 This is the very best b 序数词通常只修饰最高级 Africa is the second largest continent 8 要避免重复使用比较级 错 He is more cleverer than his brother 对 He is more clever than his brother 对 He is cleverer than his brother 9 要避免将主语含在比较对象中 错 China is larger that any country in Asia 对 China is larger than any other country in Asia 10 要注意对应句型 遵循前后一致的原则 The population of Shanghai is larger than that of Beijing It is easier to make a plan than to carry it out 11 要注意冠词的使用 后有名词的时候 前面才有可能有名词 比较 Which is larger Canada or Australia Which is the larger country Canada or Australia She is taller than her two sisters She is the taller of the two sisters