一、原級(jí)比較的基本用法
1. 原級(jí)比較由“as+形容詞或副詞（或再加名詞或短語）+as ”構(gòu)成“原級(jí)相同”比較句，表示兩者比較；其否定式，即“程度不及”比較句型為“not so（as）+形容詞或副詞+as”，而且as…as結(jié)構(gòu)前可用just，almost，nearly，quite等表示程度的詞修飾。
2. “as （so）+名詞+as+名詞”進(jìn)行名詞比較，這時(shí)一般情況下有一個(gè)表示原級(jí)的比較詞，但如果第一名詞前出現(xiàn)了形容詞修飾該詞或出現(xiàn)副詞修飾謂語，應(yīng)當(dāng)用so而不用as。
二、比較級(jí)
1. 比較級(jí)由“形容詞（副詞）比較級(jí)+than+…，”構(gòu)成表示在兩者中間一方比另一方“更加…”。連詞than后可接句子，也可接名詞、代詞、名詞短語、介詞短語、動(dòng)詞、動(dòng)詞不定式、ing結(jié)構(gòu)和ed結(jié)構(gòu)，有時(shí)也可省去than。
2. 注意than前后兩項(xiàng)相比較的人或事物要一致
三、級(jí)
1. 級(jí)用于三者以上比較，形容詞的結(jié)構(gòu)形式是“定冠詞+形容詞級(jí)+名詞+表示范圍的短語或從句”（如all，of all，of the tree，in the world，that has ever taken place等）。
2. 副詞的級(jí)與形容詞級(jí)的區(qū)別在于級(jí)前沒有定冠詞the。
四、同步練習(xí)
1）Walking briskly for thirty minutes will burn as many calories as .
[A] to run for fifteen minutes
[B] running for fifteen minutes
[C] you run for fifteen minutes
[D] fifteen minute walking
解析：B為正確答案。
2）The gorilla（大猩猩），while [A] not quite as curious than [B] the chimpanzee（黑猩猩），shows more persistence [C] and memory retention（記憶力）in solving [D] a problem.
解析：B錯(cuò)。改為as ，和前面的as和形容詞原形curious 一起構(gòu)成同程度比較。
3） Alaska is twice [A] as larger [B] as [C] the next largest [D] state，Texas.
解析：B錯(cuò)。改為as large.
4） Thomas Jefferson's achievements as an architect rival his contributions a politician.
[A] such [B] more [C] as [D] than
解析：C對(duì)。動(dòng)詞rival（勝過、匹敵）前后是兩個(gè)相比較的成分achievements（成果）和 contributions（貢獻(xiàn)），由于前面的名詞后出現(xiàn)了短語 as an architect，故空白處也應(yīng)用as，使前后對(duì)比成分一致。
5）I should say Henry is not much a writer as a reporter.
[A] that [B] so [C] this [D] as
解析：B為正確答案。
6）Natural mica（云母）of [A] a superior [B] quality is cheapest [C] to obtain than synthetic [D] mica.
解析：C錯(cuò)。應(yīng)改為比較級(jí)cheaper.比較級(jí)后并不一定跟接連詞than，有時(shí)在其間有名詞或名詞短語（被形容詞所修飾），介詞短語，不定式或其他成分隔開。
7）She is older than .
[A] any other girl in the group [B] any girl in the group
[C] all girls in the group [D] you and me as well as the group
解析：A為正確答案?！癝he”作為單個(gè)不能跟全組比（C和D不對(duì)），也不能跟全組所有相比，因?yàn)椤八币彩瞧渲幸粏T，自然“她”不能跟自己相比。這里“She”比較的是“這組中的任何一個(gè)”，所以A對(duì)。
8）Josephine McCrackin joined [A] the “Santa Cruz Sentinel” in 1905 and，until her death fifteen years late [B] ，remained [C] active in journalistic [D] work.
解析：B錯(cuò)。應(yīng)改為比較級(jí)later，因此處實(shí)為與1905年相比晚15年，故應(yīng)使用比較級(jí)。
9）The purpose of the research had a more important meaning for them than .
[A] ours [B] with us [C] for ours it had [D] it did for us
解析：D為正確答案。
10）Sound travels air .
[A] faster through water than through [B] faster than through water and
[C] through water faster and[D] where it is faster through water than through
解析：A為正確答案。
11）Gerbrand von den Feckhout，one of Rembrand's pupils，followed [A] the style of his teacher so implicitly that [B] his paintings [C] are sometimes confused with his master [D] .
解析：D錯(cuò)。改為his master's.
12）The more [A] fearsome of all the [B] animals in [C] the Western [D] Hemisphere is the grizzly bear.
解析：A錯(cuò)。改為most.
13）Of all economic [A] problems，inflation continues to be [B] a [C] most significant in its daily impact on [D] people and business.
解析：C錯(cuò)。改為the， significant是多音節(jié)形容詞，在此處應(yīng)用級(jí)形式（在前面加 the most），注意句中的“of all… ”。
14） ，the most familiar to general public is the criminal jurisdiction.
[A] All the activities [B] The activities
[C] Of all the activities [D] It is the activities
解析：C為正確答案。本句空白處缺狀語，A和B全為名詞短語，不符合條件；D為句子，和空白后面的句子沒有任何聯(lián)系，故亦應(yīng)排除。只有C正確，和后面的級(jí)the most familiar前后呼應(yīng)。
1. 原級(jí)比較由“as+形容詞或副詞（或再加名詞或短語）+as ”構(gòu)成“原級(jí)相同”比較句，表示兩者比較；其否定式，即“程度不及”比較句型為“not so（as）+形容詞或副詞+as”，而且as…as結(jié)構(gòu)前可用just，almost，nearly，quite等表示程度的詞修飾。
2. “as （so）+名詞+as+名詞”進(jìn)行名詞比較，這時(shí)一般情況下有一個(gè)表示原級(jí)的比較詞，但如果第一名詞前出現(xiàn)了形容詞修飾該詞或出現(xiàn)副詞修飾謂語，應(yīng)當(dāng)用so而不用as。
二、比較級(jí)
1. 比較級(jí)由“形容詞（副詞）比較級(jí)+than+…，”構(gòu)成表示在兩者中間一方比另一方“更加…”。連詞than后可接句子，也可接名詞、代詞、名詞短語、介詞短語、動(dòng)詞、動(dòng)詞不定式、ing結(jié)構(gòu)和ed結(jié)構(gòu)，有時(shí)也可省去than。
2. 注意than前后兩項(xiàng)相比較的人或事物要一致
三、級(jí)
1. 級(jí)用于三者以上比較，形容詞的結(jié)構(gòu)形式是“定冠詞+形容詞級(jí)+名詞+表示范圍的短語或從句”（如all，of all，of the tree，in the world，that has ever taken place等）。
2. 副詞的級(jí)與形容詞級(jí)的區(qū)別在于級(jí)前沒有定冠詞the。
四、同步練習(xí)
1）Walking briskly for thirty minutes will burn as many calories as .
[A] to run for fifteen minutes
[B] running for fifteen minutes
[C] you run for fifteen minutes
[D] fifteen minute walking
解析：B為正確答案。
2）The gorilla（大猩猩），while [A] not quite as curious than [B] the chimpanzee（黑猩猩），shows more persistence [C] and memory retention（記憶力）in solving [D] a problem.
解析：B錯(cuò)。改為as ，和前面的as和形容詞原形curious 一起構(gòu)成同程度比較。
3） Alaska is twice [A] as larger [B] as [C] the next largest [D] state，Texas.
解析：B錯(cuò)。改為as large.
4） Thomas Jefferson's achievements as an architect rival his contributions a politician.
[A] such [B] more [C] as [D] than
解析：C對(duì)。動(dòng)詞rival（勝過、匹敵）前后是兩個(gè)相比較的成分achievements（成果）和 contributions（貢獻(xiàn)），由于前面的名詞后出現(xiàn)了短語 as an architect，故空白處也應(yīng)用as，使前后對(duì)比成分一致。
5）I should say Henry is not much a writer as a reporter.
[A] that [B] so [C] this [D] as
解析：B為正確答案。
6）Natural mica（云母）of [A] a superior [B] quality is cheapest [C] to obtain than synthetic [D] mica.
解析：C錯(cuò)。應(yīng)改為比較級(jí)cheaper.比較級(jí)后并不一定跟接連詞than，有時(shí)在其間有名詞或名詞短語（被形容詞所修飾），介詞短語，不定式或其他成分隔開。
7）She is older than .
[A] any other girl in the group [B] any girl in the group
[C] all girls in the group [D] you and me as well as the group
解析：A為正確答案?！癝he”作為單個(gè)不能跟全組比（C和D不對(duì)），也不能跟全組所有相比，因?yàn)椤八币彩瞧渲幸粏T，自然“她”不能跟自己相比。這里“She”比較的是“這組中的任何一個(gè)”，所以A對(duì)。
8）Josephine McCrackin joined [A] the “Santa Cruz Sentinel” in 1905 and，until her death fifteen years late [B] ，remained [C] active in journalistic [D] work.
解析：B錯(cuò)。應(yīng)改為比較級(jí)later，因此處實(shí)為與1905年相比晚15年，故應(yīng)使用比較級(jí)。
9）The purpose of the research had a more important meaning for them than .
[A] ours [B] with us [C] for ours it had [D] it did for us
解析：D為正確答案。
10）Sound travels air .
[A] faster through water than through [B] faster than through water and
[C] through water faster and[D] where it is faster through water than through
解析：A為正確答案。
11）Gerbrand von den Feckhout，one of Rembrand's pupils，followed [A] the style of his teacher so implicitly that [B] his paintings [C] are sometimes confused with his master [D] .
解析：D錯(cuò)。改為his master's.
12）The more [A] fearsome of all the [B] animals in [C] the Western [D] Hemisphere is the grizzly bear.
解析：A錯(cuò)。改為most.
13）Of all economic [A] problems，inflation continues to be [B] a [C] most significant in its daily impact on [D] people and business.
解析：C錯(cuò)。改為the， significant是多音節(jié)形容詞，在此處應(yīng)用級(jí)形式（在前面加 the most），注意句中的“of all… ”。
14） ，the most familiar to general public is the criminal jurisdiction.
[A] All the activities [B] The activities
[C] Of all the activities [D] It is the activities
解析：C為正確答案。本句空白處缺狀語，A和B全為名詞短語，不符合條件；D為句子，和空白后面的句子沒有任何聯(lián)系，故亦應(yīng)排除。只有C正確，和后面的級(jí)the most familiar前后呼應(yīng)。