小学英语比较级讲练.ppt

形容词有三个比较等级：原级、比较级和最高级形容词有三个比较等级：原级、比较级和最高级原级表示的是原级表示的是“等于等于”常用常用:asas 表示表示e.g.I am as tall as my twin sister.Mike is as clever as his twin brother.Mr.Black is as old as me.这种句式的否定句可以用这种句式的否定句可以用”not as as”来表示，也可来表示，也可“not soas”来表示。来表示。e.g.Im not so tall as my twin sister.Mr.Black isnt so old as me.形容词的比较级的构成：形容词的比较级的构成：1.一般情况：一般情况：词尾词尾+er 词尾词尾+est tall taller tallest clean cleaner cleanest clever cleverer cleverest2.以以e结尾的单词：结尾的单词：词尾词尾+r nice nicer nicest cute cuter cutest large(大的大的)larger largest safe(安全的安全的)safer safest形容词的最高级的构成：形容词的最高级的构成：3.以以“辅音字母辅音字母+y”结尾的词结尾的词:去去y 变变i+er 去去y 变变i+est heavy heavier heaviest easy easier easiest happy happier happiest 4.以重读闭音节结尾的形容词（辅以重读闭音节结尾的形容词（辅+元元+辅），辅），双写词尾双写词尾+er 双写词尾双写词尾+est big bigger biggest hot hotter hottest thin thinner thinnest5.多音节的形容词，多音节的形容词，比较级：比较级：more +形容词形容词 最高级：最高级：most +形容词形容词 beautiful more beautiful most beautiful expensive more expensive most expensive interesting more interesting most interesting不规则变化：不规则变化：原级原级 比较级比较级 最高级最高级 good/well（好）（好）better best bad/ill（坏）（坏）worse worst many/much（多）（多）more most little/few（少）（少）less least old（老）（老）older/elder oldest/eldest far（远）（远）farther/further farthest/further写出下列单词的比较级和最高级写出下列单词的比较级和最高级safe coldwarm wet(湿的湿的)busy maddifficult activefast slowdangerous(危险的危险的)interesting(有趣的有趣的)many good写同义句：写同义句：1.Mike is taller than Zhang Peng.2.Mike is taller and stronger than Zhang Peng.3.The brown monkeys tail is longer than the yellow monkeys.4.This dogs head is bigger than that ones.Zhang Peng is shorter than Mike.That dogs head is smaller than this ones.在比较级的在比较级的前面前面，可以用上，可以用上much(得多得多)even(甚至甚至)a little(一点一点)等词来修饰，表示等词来修饰，表示“程度更程度更”e.g.Mike is a little taller than Bill.My plant is much taller and stronger than yours.This flower is even more beautiful than that one.在最高级的前面，我们常常要加上在最高级的前面，我们常常要加上 the,表示在三个或表示在三个或更多的人或事物的比较结果更多的人或事物的比较结果 “the 形容词的最高级形容词的最高级+比较范围比较范围”Chen Jiawei is the tallest boy in our class.Chen Yang is the strongest boy in our class.用横线划出短文中的形容词。并写出它们的比较级。用横线划出短文中的形容词。并写出它们的比较级。Its a hot day.There is a thin dog in a quietstreet.A tall boy says to the dog.“Come here,good dog.Ill give you some delicious bread.”hotterthinnerquietertallerbettermore delicious1.My coffee is as _(nice)as the coffee my mother makes.2.My coffee is _(nice)than yours.3.Shanghai is _(large)than Nanjing.4.David is the _(tall)boy in his class.5.This picture is _(beautiful)than that one.