小学英语比较级和最高级知识点.ppt

1、Comparativestocomparethingsandpeople形容形容词词&副词副词比比较较等等级级的构成的构成 英语形容词比较等级有三个：英语形容词比较等级有三个：原级，比较级和最高级原级，比较级和最高级fastLook at the pictures and understand Look at the pictures and understand 看图并理解fastfasterLook at the pictures and understand Look at the pictures and understand 看图并理解fastfasterfastestLook at

2、 the pictures Look at the pictures and understand and understand 看图并理解Look at the pictures and understand Look at the pictures and understand 看图并理解bigbiggerbiggest规则变化规则变化1）单音节词末尾加）单音节词末尾加-er（比较级），（比较级），-est（最高（最高级）级）(少数以少数以er，ow结结尾的双音尾的双音节词节词)原原级 比比较级 最高最高级 great greater greatest small smaller smal

3、lest clean cleaner cleanest clever cleverer cleverest2）单音音节如以如以e结尾，只加尾，只加-r（比（比较级），），-st（最高（最高级）fine finer finest wide wider widest able abler ablest规则变化规则变化3）闭音节单音节词如末尾只有一个辅音字母，）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，再加须先双写这个辅音字母，再加-er（比较级），（比较级），-est（最高级）（最高级）4）以以辅音字母音字母+y结尾尾，则变y为-i，再加，再加-er和和-est big bigg

4、er biggest hot hotter hottest red redder reddesteasy easier easiest规则变化规则变化5）其它双音其它双音节和多音和多音节词皆在前面加皆在前面加单词more和和most careful more careful most carefuldifficult more difficult most difficultdelicious more delicious most delicious不不规则变规则变化化 原原级 比比较级 最高最高级good/well better bestmany/much more most 原级用法原级

5、用法2.asas not as/so.as.你和你和汤汤姆是一姆是一样样好的孩子。好的孩子。Youre a boy as good as Tom.约约翰不象翰不象迈迈克那么克那么笨笨。John is not so stupid as Mike.1.副词副词very,too,so,quite等修饰原级。等修饰原级。如：如：very tall、too hot、so cold quite interesting比较级的用法比较级的用法一般句式的构成：一般句式的构成：A+is/are+A+is/are+A+is/are+A+is/are+形容形容形容形容词词词词比比比比较级较级较级较级+than+B+

6、than+B+than+B+than+B She is taller than me.She is taller than me.There are more students in Class One than in There are more students in Class One than in Class Two.Class Two.可用可用可用可用much,a little,evenmuch,a little,even等修等修等修等修饰饰饰饰：He made much more mistakes than I did.He is even richer than I.最高级的用

7、法最高级的用法 形容形容词词最高最高级级前必前必须须加加the,the,副副词词最高最高级级前常省略前常省略thethe，后面多用，后面多用ofof，in in短短语语表示范表示范围围：It was the most/least interesting storyIt was the most/least interesting story.He is the tallest of the three.He is the tallest of the three.He runs fastest.He runs fastest.一写出下列单词的比较级和最高级：beautiful_expensiv

8、e_popular_delicious_old_good_fat_low_small_big_narrow_crazy_二选择：1.Myteacheris_thanmymother.A:beautiful.B:morebeautifulC:mostbeautiful.2.Thisgameis_thanthatgame.A:popularB:morepopularC:mostpopular3.Heisthe_studentinourclass.A:goodB:betterC:best.4.Myfatherisso_.A:tallB:tallerC:tallest5.Icanjumpvery_.A

9、:farB:fartherC:farthest6.Thehamburgeris_thanthebread.A:deliciousB:moredeliciousC:themostdelicious7.Thisbookis20yuan.Thatbookis30yuan.Sothatbookis_thanthisbook.A:expensiveB:moreexpensiveC:mostexpensive.8.Thewitchis_thantheoldman.A:badB:worseC:worst.9.Ihavemanybooks.Lilyhas_booksthanme.Jackhas_booksth

10、anLily.A:many,many.B:most,mostC:more,more10Mybookbagisas_asmysistersbookbag.A:bigB:biggerC:biggest.11.Jackistoo_toreachthecookiesontheshelf.A:littleB:littlerC:littlest12.Mybookis_thanLilysbook.A:goodB:betterC:best13.Whichoneis_?Winterorsummer?A:hotB:hotterC:hottest14.Peteristhe_oneinourclassroom.A:lateB:laterC:latest15.Icanrun_.Myunclecanrun_thanme.Myfathercanrun_inall.A:fast,fast,fastB:faster,faster,fasterC:fast,faster,fastest谢谢观赏