第13题: [单项选择]______ the sports meeting will. be held is not known yet. A. If B. Whether C. Weather D. Both A and B 参考答案:B 答案解析:[解析] whether引导的是主语从句，if不能引导主语从句，例如：Whether we'll succeed remains to be seen．(我们能否成功还要拭目以待。)故选B。
第14题:[单选题] Which would you NOT use to report the amount of anchor chain out ? Three shots ______． A.at the water's edge B.on deck C.on the bottom D.well in the water 参考答案:C 【参考译文】你不会用哪种说法来报告放出的锚链长度？三节在海底。 【解 析】shot:shackle节
第19题: [单项选择]Cooked vegetables are also valuable sources of certain vitamins and minerals, if the juice is eaten and if not cooked ______ . A. too long a time B. a long time too C. much time long D. long much time 参考答案:A 答案解析:[解析] 根据句义，选项中的time指“一段时间”，是个可数名词，前面应当用不定冠词a．故排除掉选项 C和D。副词too修饰形容词的时候，意思是“太……”；放在句子最后修饰整个句子时，表示“也……”。
