No doubt his ability to listen contributed 28 his capacity to write. 29 , the results of his listening did not make him popular.
答案：(B) to
【句型】contribute to 字詞搭配「對……有貢獻/促成」；on／for／in 都不是 contribute 常見的搭配介系詞。
本題大考中心未公布逐題答對率，以下不談數據，只談觀念。
四個都是最高頻的介系詞，contribute 的中文「貢獻」後面接什麼在中文裡沒有固定答案，所以只能猜。這一型只能靠有沒有把動詞和介系詞當一組記起來。
四個選項都是介系詞，可見這一格考的是 contribute 跟哪一個搭配。答案是 contribute to，這一組有兩層意思：一是「捐助」（contribute to a charity 捐錢給慈善機構），二是本句用的「促成、有助於」（his ability to listen contributed to his capacity to write 他的聆聽能力有助於他的寫作能力）。掛鉤可以用大家都聽過的 Smoking contributes to lung cancer.（吸菸會導致肺癌。）。要注意這個 to 是介系詞，後面接名詞或動名詞，不是不定詞的 to——所以是 contribute to solving the problem，不是 contribute to solve。
on、for、in：三個都是高頻介系詞，但都不與 contribute 組成通行的說法。這一型的題目文法上刷不掉任何一個，只能靠平常有沒有把整組記住，所以背動詞時要連介系詞一起背，不要只背動詞本身。
contribute to（促成、有助於、捐助）、make a contribution to（對……有貢獻）、lead to（導致）、result in（造成）、one’s capacity to V（做……的能力）、owe sth to sb（把……歸功於某人）。
Most people like to talk, but few people like to listen. 21 listening well is a rare talent that everyone should treasure. Because they hear more, good listeners 22 to know more and to be more sensitive to what is going on around them than other people. In addition, good listeners are inclined to accept or tolerate 23 to judge and criticize. Therefore, they have 24 enemies than other people. 25 , they are probably the most loved of people.
However, there are 26 to that generality. For example, John Steinbeck is 27 to have been an excellent listener, yet he was hated by some of the people he wrote about. No doubt his ability to listen contributed 28 his capacity to write. 29 , the results of his listening did not make him popular.
Thus, 30 on what a good listener does, he may become either popular or disliked in his lifetime.