9.People say Daniel is reliable and honest; ________， I don't feel I can trust him.(instead, otherwise, somehow, though)
答案：somehow 解析：考查副词辨析。句意：人们都说丹尼尔诚实可靠，可我觉得就是不能相信他。somehow“不知怎么地，以某种方式”，符合句意。instead相反，而不是;otherwise否则;though不过。注意：though作副词时，通常放在句中或句尾表示“不过，可是”。
10.When the policeman stopped us, we all looked questioningly at him, ________.(nervously and puzzled, nervous and puzzling, nervous and puzzled, nervously and puzzling)
答案：nervous and puzzled 解析：考查形容词作状语。此处为形容词作状语，表示主语的状态。
11.Cakes of this kind usually taste even ________(good) if they are heated for 5 to 8 seconds in the microwave.
答案：better 解析：考查形容词的比较等级。句意：如果这种类型的蛋糕放在微波炉里加热5到8秒钟，通常会更好吃。根据句意可知，此处表示出较，故用形容词或者副词的比较级better。
12.In less developed countries the primary problem is providing________employment for the rapidly expanding urban populations.(sufficient, essential, alternative, convenient)
答案：sufficient 解析：考查形容词辨析。句意：欠发达国家的首要问题是为快速膨胀的城市人口提供足够多的就业机会。根据句意可知应选sufficient，表示“足够的，充足的”。
13.Seeing the coach nodding ________(encourage) to her, the little dancer was no more nervous and went on with her performance.
答案：encouragingly 解析：考查副词辨析。句意：看到教练鼓励地向她点头，小舞者不再紧张，继续表演。encouragingly“鼓励地”。
14.I have worked with him for some time and have found that he is ________ than John.(more efficiently a worker, a more efficient worker, more an efficient worker, a worker more efficiently)
答案：a more efficient worker 解析：考查了在含有than的比较级中名词的位置，即a/an+比较级+名词。
15.Mike was usually so careful，________ this time he made a small mistake.(yet, still, even, thus)
答案：yet 解析：句意：麦克通常很认真的，然而(yet)这次他犯了个小错误。still仍然;even甚至;thus因此，均不符合语境，故排除。
