初二英語上冊知識點：形容詞和副詞比較級

　　形容詞和副詞比較級相關(guān)知識點

　　一、有關(guān)原級的用法

　　1.只能修飾原級的詞，very，quite，so，too

　　例如，He is too tired to walk on.他太累了以至于不能再繼續(xù)走了。

　　My brother runs so fast that I can't follow him.我弟弟跑得那么快以至于我跟不上他。

　　2.原級常用的句型結(jié)構(gòu)

　　(1)"甲+be+(倍數(shù))+as+形容詞原級+as+乙"表示"甲和乙程度相同"或"甲是乙的幾倍"

　　例如，Tom is as old as Kate.湯姆和凱特年齡一樣大。

　　Tom is twice as old as Kate.湯姆的年齡是凱特的二倍。

　　"甲+實意動詞+(倍數(shù))+as+副詞原級+as+乙"表示"甲和乙程度相同"或"甲是乙的幾倍"

　　例如，Tom runs as fast as Mike.湯姆和邁克跑得一樣快。

　　Tom runs twice as fast as Mike.湯姆跑得速度是邁克的二倍。

　　(2)"甲+be+not+as/so+形容詞原級+as+乙"甲不如乙…

　　例如，This room is not as/so big as that one. 這個房間不如那個大。

　　"甲+助動詞+not+動詞原形+as/so+副詞原級+as+乙"甲不如乙…

　　例如，He doesn't walk as slowly as you.他走路不像你那樣慢。

　　二、形容詞副詞比較級的用法

　　1.可以修飾比較級的詞，much，a lot，far，…的多a little，a bit，…一點兒even甚至，still仍然

　　例如，Lesson One is much easier than Lesson Two.第一課比第二課容易得多。

　　Tom looks even younger than before.湯姆甚至比以前更年輕。

　　This train runs much faster than that one.這輛火車比那輛跑地快

　　She drives still more carefully than her husband.她開車仍然比她丈夫還認(rèn)真。

　　2.比較級常用的句型結(jié)構(gòu)

　　(1)"甲+be+(倍數(shù))+形容詞比較級+than+乙"表示"甲比乙…"或"甲比乙…幾倍"

　　例如，Tom is taller than Kate.湯姆比凱特高。

　　This room is three times bigger than that one.這個房間比那個大三倍。

　　"甲+實意動詞+(倍數(shù))+副詞比較級+than+乙"表示"甲比乙…"或"甲比乙…幾倍"

　　例如，I got up earlier than my mother this morning.我今天早晨起床比我媽媽還早。

　　He runs three times faster than his brother.他跑的速度比他弟弟快三倍。

　　(2)"甲+be+形容詞比較級+than+any other+單數(shù)名詞(+介詞短語)"表示"甲比同一范圍的任何一個人/物都……"，含義是"甲最……"。

　　例如，The Yangtze River is longer than any other river in China.

　　=The Yangtze River is longer than any of the other rivers in China.長江比中國的任何一條其他的河都長。

　　=The Yangtze River is longer than the other rivers in China.長江比中國的其他所有的河都長。

　　=The Yangtze River is the longest river in China.長江是中國最長的河流。

　　注意：The Yangtze River is longer than any river in Japan.長江比日本的任何一條河都長。

　　"甲+實意動詞+副詞比較級+than+anyother+單數(shù)名詞(+介詞短語)"表示"甲比同一范圍的任何一個人/物都……"，含義是"甲最……"。

　　例如，Mike gets to school earlier than any other student in his class.

　　= Mike gets to school earlier than any of the other students in his class.邁克比他們班上任何一個其他的同學(xué)到校都早。

　　= Mike gets to school earlier than the other students in his class.邁克比他們班上其他的同學(xué)到校都早。= Mike gets to school earliest in his class.邁克在他們班到校最早。

　　注意：Mike gets to school earlier than any student in Tom's class.邁克比湯姆班上任何一個學(xué)生到校都早。(邁克和湯姆不是同一個班)

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