六年级-比较级与最高级的用法

课前准备 检查学生掌握单词情况 听写 课前准备 检查学生掌握单词情况 听写 一 形容词 副词的比较级和最高级的构成规则一 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 able abler ablest 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 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 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 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 词形变换 比较级 最高级 large fast easy wet good important well bad many little far strong patient safe expensive 二 形容词 副词的比较级和最高级的句子公式 二 形容词 副词的比较级和最高级的句子公式 比较级 形容词物体 A am are is 形比 than 物体 B I am taller than you Pasta is more delicious than pizza 副词物体 A 行为动词 副比 than 物体 B Cheetahs run faster than goats He studies better than me 最高级 1 物体 A am are is the 形最高级 比较范围 of 人 物 in 地方 I am the tallest in the class Pasta is the most delicious food of the three 2 物体 A 行为动词 副词最高级 比较范围 of 人 物 in 地方 Cheetahs run fastest in the world He studies best of us 1 She is than A busier us B busier we C more busy us D more busy we 2 Jane is than Betty A less taller B less tallest C less tall D not as tall 3 China is country in the world A the third largest B the largest third C the third large D a third largest 4 Which is season in Beijing I think it s autumn A good B better C best D the best 5 Which is the sun the moon or the earth Of course the moon is A small B smaller C smallest D the smallest 6 The air in Beijing is getting much now than a few years ago A clean B cleaner C cleanest D the cleanest 7 Mobile phones are very popular now and they are than before A cheap B cheaper C cheapest D the cheapest 8 I study English as as my brother A hard B harder C hardest 9 Which is a bicycle or a computer A expensive B more expensive C the most expensive 10 The Yellow River is one of rivers in China A long B longer C the longest 11 She is the second student in our class A tall B taller C tallest 用括号里的词的适当形式填空 1 Tom can jump high He jumps high than the other boys in his class 2 Janet sing well in her class She can sing well than her music teacher too 3 My father is handsome But my brother is handsome than him He is handsome in my family 4 I have many books in my class But my teacher has many books than I 5 they house is much old than we 三 形容词和副词比较级的用法三 形容词和副词比较级的用法 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 在比较级前面使用 much 表示程度程度 强得多 如 A watermelon is much bigger than an apple very quite 一般只能修饰原级 不能修饰比较级 2 比较级 and 比较级 或 more and more 原级 表示 越来 越 如 It becomes warmer and warmer when spring comes 春天来了 天气变得越来越暖和了 It is getting cooler and cooler 天气越来越凉爽 The wind became more and more heavily 风变得越来越大 Our school 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 He is the tallest in our class 他在我们班里是最高的 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 Mike is the most intelligent in his class Mike is more intelligent than any other student in his class 注意 修饰比较级和最高级的词 1 可修饰比较级的词 a bit a little rather much far by far many a lot lots a great deal any still even 等 还可以用表示倍数的词或度量名词作修饰语 以上词 除 by far 外 必须置于比较级形容词或副词的前面 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 far much mostly almost This hat is nearly almost the biggest 注意 a very 可修饰最高级 但位置与 much 不同 This is the very best This is much the best b 序数词通常只修饰最高级 Africa is the second largest continent 选择题 1 This box is that one A heavy than B so heavy than C heavier as D as heavy as 2 When we speak to people we should be A as polite as possible B as polite as possibly C as politely as possible D as politely as possibly 3 This book is that one but than that one A as difficult as expensive B as more difficult as more expensive C as difficult as more expensive D more difficult as as expensive 4 I think the story is not so as that one A interesting B interested C more interesting D most interesting 5 His father began to work he was seven years old A as old as B as early as C since D while 6 I think science is than Japanese A much important B important C much more important D more much important 7 This pencil is than that one A longest B long C longer D as long 8 My mother is no young A shorter B longer C little D few 9 These children are this year than they were last year A more tall B more taller C very taller D much taller 10 It was very hot yesterday but it is today A even hotter B more hotter C much more hot D much hot 四 总结与作业四 总结与作业 1 选择填空 1 Birds can fl