小学英语比较级和最高级知识点.ppt

Comparatives,to compare things and people,形容词&副词比较等级的构成,英语形容词比较等级有三个： 原级，比较级和最高级,fast,Look at the pictures and understand 看图并理解,fast,faster,Look at the pictures and understand 看图并理解,fast,faster,fastest,Look at the pictures and understand 看图并理解,Look at the pictures and understand 看图并理解,big,bigger,biggest,规则变化,1）单音节词末尾加-er（比较级），-est（最高级）(少数以er，ow结尾的双音节词),原级 比较级 最高级 great greater greatest small smaller smallest clean cleaner cleanest clever cleverer cleverest,2）单音节如以e结尾，只加-r（比较级），-st（最高级）,fine finer finest wide wider widest able abler ablest,规则变化,3）闭音节单音节词如末尾只有一个辅音字母，须先双写这个辅音字母，再加-er（比较级），-est（最高级）,4）以辅音字母+y结尾，则变y为-i，再加-er和-est,big bigger biggest hot hotter hottest red redder reddest,easy easier easiest,规则变化,5）其它双音节和多音节词皆在前面加单词more和most,careful more careful most careful difficult more difficult most difficult delicious more delicious most delicious,不规则变化,原级 比较级 最高级 good/well better best many/much more most,原级用法,2. asas not as/so . as. 你和汤姆是一样好的孩子。 Youre a boy as good as Tom. 约翰不象迈克那么笨。 John is not so stupid as Mike.,1. 副词very, too, so, quite等修饰原级。 如：very tall、 too hot、 so cold quite interesting,比较级的用法,一般句式的构成： A + is / are+ 形容词比较级+ than + B She is taller than me. There are more students in Class One than in Class Two.,可用much, a little, even等修饰： He made much more mistakes than I did. He is even richer than I.,最高级的用法,形容词最高级前必须加the, 副词最高级前常省略the，后面多用of， in短语表示范围： It was the most/least interesting story. He is the tallest of the three. He runs fastest.,一 写出下列单词的比较级和最高级： beautiful _ _ expensive_ _ popular_ _ delicious_ _ old _ _ good_ _ fat_ _ low _ _ small _ _ big _ _ narrow _ _ crazy _ _,二选择： 1. My teacher is _than my mother. A: beautiful. B: more beautiful C: most beautiful. 2. This game is _ than that game. A: popular B: more popular C: most popular 3. He is the _ student in our class. A: good B: better C: best. 4. My father is so _ . A: tall B: taller C: tallest 5. I can jump very _ . A: far B: farther C: farthest 6. The hamburger is _than the bread. A: delicious B: more delicious C: the most delicious 7. This book is 20 yuan. That book is 30 yuan. So that book is _ than this book. A: expensive B: more expensive C: most expensive.,8. The witch is _ than the old man. A: bad B: worse C: worst. 9. I have many books. Lily has _books than me. Jack has _ books than Lily. A: many, many. B: most, most C: more, more 10My book bag is as _as my sisters book bag. A: big B: bigger C: biggest. 11. Jack is too _to reach the cookies on the shelf. A: little B: littler C: littlest 12. My book is _ than Lilys book. A: good B: better C: best 13.Which one is _ ? Winter or summer? A: hot B: hotter C: hottest 14. Peter is the _ one in our classroom. A: late B: later C: latest 15. I