1.(2011﹒全国卷I)—Someone wants you on the phone.
—_____nobody knows I am here.
A. Although B. And C. But D. So
【答案】C
【解析】前半句为：有人给你打电话；后半句为：没有人知道我在这儿，根据句子意思可知前后两句明显为转折关系，因此选 C。
2.(2011﹒山东)Find ways to praise your children often, ____ you’ll find they will open their hearts to you.
A. till B. or C. and D. but
【答案】C
【解析】分析前后分句逻辑关系，是条件或假设关系，而且“祈使句+and/or/otherwise…”固定句型所以选C.
