大学英语：When students in a college

　　1. A.When students in a college class were asked what should be done when they came across a new word in their reading，84 percent said，“Look it up in the dictionary.”

　　B. Suppose someone asks you what the word “fast” means.

　　2. Make one's efforts most productive 宾补； 使你的努力变得有成效。

　　3. Reading travel books apparently comes “before” other kinds of reading. 动名词做主语

　　4. 语法：Only when you go through the mental exercises to come up with a tentative definition should you open the dictionary to see if you're right. 倒装句型考试用书

　　Only+状语+助动词+主语+动词的适当形式+其他

　　e. g. Only in that way could we solve the problem.

　　Only when he left did I feel lonely.

　　5. Heighten（v.提高、升高）heightened（adj.提高的）；increase（v.提高）increased（adj.提高的）