4. for引導的原因狀語從句并不說明主句行為發(fā)生的直接原因，只提供一些輔助性的補充說明，for引導的原因狀語從句只能放于主句之后并且必須用逗號將其與主句隔開。例如：He could not have seen me, for I was not there. 他不可能見過我，因為我不在那里。
[考題1] ____ you’ve got a chance, you might as well make full use of it.
A. Now that B. After C. Although D. As soon as
[答案] A
[解析] 主句與從句之間存在因果關(guān)系，且“you’ve got a chance”表示一個顯而易見的原因，因此應選用表原因的now that。
[考題2] He found it increasingly difficult to read, ____ his eyesight was beginning to fail.
A. and B. for C. but D. or
[答案] B
[解析] “his eyesight was beginning to fail”是“he found it increasingly difficult to read”的原因，因此本題應選用可以表示原因的連詞for引導原因狀語從句。
[考題3] A man cannot smile like a child, ____ a child smiles with his eyes, while a man smiles with his lips alone.
A. so B. but C. and D. for
[答案] D
【學苑教育學習網(wǎng)】http://class.xycentre.com/
【輔導報班電話】：400－180－1997
關(guān)注學苑管理類聯(lián)考微信號：xycentre
