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

答案及解析：

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(jì)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。