1、By law, when one makes a large purchase, he should have adequate opportunity to change his mind.

　　A. accurate　　B. urgent　　C. excessive　　D. sufficient

　　2、Achieving a high degree of proficiency in English as a foreign language is not a mysterious ______ without scientific basis.

　　A. process　　B. practice　　C. procedure　　D. program

　　3、The generation ______ makes it difficult for parents to understand their children's opinions.

　　A. division　　B. gap　　C. separation　　D. interval

　參考答案&解析：

　　1、D　句意：根據(jù)法律規(guī)定，當(dāng)事人購買一大批貨物時，他是有權(quán)利改變主意的。accurate的意思為“精確的”，urgent的意思為“緊急的，眼前的，急迫的”;excessive的意思為“過分的，過多的”;adequate和sufficient為充足的。

　　2、A　process過程;practice實(shí)習(xí)，練習(xí)，開業(yè);procedure程序;program課程，計劃，大綱。

　　3、B　generation gap 代溝;division分，劃分;separation分開;interval間隔，間隙;(幕間或工間)休息。at intervals 不時，時時。