在英語修辭上，“對(duì)句法”（parallelism）是一種行之有效的句子結(jié)構(gòu)，不但可以使句子里的每個(gè)成分等量齊觀，而且可以收到很好的傳訊效益。
所謂對(duì)句法，就是同一個(gè)句子中的等立成分都要以相同的形式出現(xiàn)，使句式工整，內(nèi)容一目了然。例如：
“If you want to communicate well, you must learn to think logically, （to） organize your ideas coherently, and （to） express yourself explicitly.
很多人并沒有根據(jù)這原則作文或?qū)懳恼?，結(jié)果句子雖然合乎語法，但句子成分不對(duì)應(yīng)；這樣的句子不能說錯(cuò)，但是也無可取之處。
下面三個(gè)長(zhǎng)句中，都有對(duì)句法成分不對(duì)應(yīng)之處，請(qǐng)大家辨認(rèn)：
① This finely made pen is sturdy and will serve you well every day, whether at work, office or at home.
這句子中有三個(gè)副詞短語，但中間那個(gè)有偏差，要改為“in the office”才能和“at work”及“at home”搭配。
② We are proud of the various changes…… For example, the corporation of universities, the introduction of scholarships for bright students, the revamp in national examinations, and recently allowing bright students to progress according to their ability.
這句里舉了四種變化，但是第四種變化中用的是動(dòng)名詞短語，有別于其他三種結(jié)構(gòu)，使對(duì)句法發(fā)生偏差，所以非改不可：
“……and the permission for bright students to progress according to their ability.”
③ It may seem a good idea to try to sell your house. But there are many pitfalls: improper pricing （too high or too low）; guessing where to place the ads; showing your house to people who may or may not be interested; and finally, knowing who may or may not be qualified to buy.
首先，這句里提到四個(gè)陷阱，其中三個(gè)用動(dòng)名詞形式，另一個(gè)卻用“形容詞+動(dòng)名詞”（improper pricing），有點(diǎn)格格不入，必須稍作調(diào)整：pricing too high or too low.此外，這段話有些唆，應(yīng)該進(jìn)一步修飾：
“……setting prices too high or too low; guessing where to place the ads; showing your house to the interest group; and knowing the eligible buyers.”
句子成分不對(duì)應(yīng)，不平衡的例子，比比皆是?，F(xiàn)在請(qǐng)看看下列這幾個(gè)句子，并辨其正誤：
④a. Helen is tall, with big eyes, and has a pleasant face.
b. Helen is tall, big-eyed and pleasant.
⑤a. Betty has long hair and was very graceful.
b. Betty has both long hair and great grace.
c. Betty is long-haired as well as graceful.
⑥a. Today, a secretary must be very pleasant in appearance and has unusual intelligence.
b. Today, a secretary must be very pleasant and unusually intelligent.
c. Today, a secretary must have very pleasant appearance and unusual intelligence.
⑦a. Young girls like romantic novels with exciting actions and they keep them thrilling.
b. Young girls like romantic novels which have exciting actions and which keep them thrilling.
④a—⑦a間的成分不平衡；④b—⑦b者就對(duì)應(yīng)。
所謂對(duì)句法，就是同一個(gè)句子中的等立成分都要以相同的形式出現(xiàn)，使句式工整，內(nèi)容一目了然。例如：
“If you want to communicate well, you must learn to think logically, （to） organize your ideas coherently, and （to） express yourself explicitly.
很多人并沒有根據(jù)這原則作文或?qū)懳恼?，結(jié)果句子雖然合乎語法，但句子成分不對(duì)應(yīng)；這樣的句子不能說錯(cuò)，但是也無可取之處。
下面三個(gè)長(zhǎng)句中，都有對(duì)句法成分不對(duì)應(yīng)之處，請(qǐng)大家辨認(rèn)：
① This finely made pen is sturdy and will serve you well every day, whether at work, office or at home.
這句子中有三個(gè)副詞短語，但中間那個(gè)有偏差，要改為“in the office”才能和“at work”及“at home”搭配。
② We are proud of the various changes…… For example, the corporation of universities, the introduction of scholarships for bright students, the revamp in national examinations, and recently allowing bright students to progress according to their ability.
這句里舉了四種變化，但是第四種變化中用的是動(dòng)名詞短語，有別于其他三種結(jié)構(gòu)，使對(duì)句法發(fā)生偏差，所以非改不可：
“……and the permission for bright students to progress according to their ability.”
③ It may seem a good idea to try to sell your house. But there are many pitfalls: improper pricing （too high or too low）; guessing where to place the ads; showing your house to people who may or may not be interested; and finally, knowing who may or may not be qualified to buy.
首先，這句里提到四個(gè)陷阱，其中三個(gè)用動(dòng)名詞形式，另一個(gè)卻用“形容詞+動(dòng)名詞”（improper pricing），有點(diǎn)格格不入，必須稍作調(diào)整：pricing too high or too low.此外，這段話有些唆，應(yīng)該進(jìn)一步修飾：
“……setting prices too high or too low; guessing where to place the ads; showing your house to the interest group; and knowing the eligible buyers.”
句子成分不對(duì)應(yīng)，不平衡的例子，比比皆是?，F(xiàn)在請(qǐng)看看下列這幾個(gè)句子，并辨其正誤：
④a. Helen is tall, with big eyes, and has a pleasant face.
b. Helen is tall, big-eyed and pleasant.
⑤a. Betty has long hair and was very graceful.
b. Betty has both long hair and great grace.
c. Betty is long-haired as well as graceful.
⑥a. Today, a secretary must be very pleasant in appearance and has unusual intelligence.
b. Today, a secretary must be very pleasant and unusually intelligent.
c. Today, a secretary must have very pleasant appearance and unusual intelligence.
⑦a. Young girls like romantic novels with exciting actions and they keep them thrilling.
b. Young girls like romantic novels which have exciting actions and which keep them thrilling.
④a—⑦a間的成分不平衡；④b—⑦b者就對(duì)應(yīng)。