1. One of the responsibilities of the Coast Guard is to make sure that all ships ______ follow traffic rules in busy harbor. A. cautiously B. dutifully C. faithfully D. skillfully B【句意】海岸警卫队的职责之一就是确保所有船只在繁忙的港口顺从地遵守交通规则。 【解析】副词词义辨析。cautiously“小心地,谨慎地”;dutifully“忠实地;顺从地”;faithfully“忠实地;准确地”;skillfully“巧妙地;熟练地”。由句中关键词“Coast Guard海岸警卫队”、“make sure that all ships确保所有船只”和“follow traffic rules遵守交通规则”的对应知“顺从地”更符合语境,故B项正确。 2. In addition to painting highly acclaimed portraits, Mary Cassatt was ______ to several major art collectors. A. to advise B. an adviser C. advised D. advising B【句意】除了画备受称赞的肖像画外,玛丽·卡萨特(Mary Cassatt)还是几位主要艺术收藏家的顾问。 【解析】语法——句子结构。由句中关键词“In addition to painting highly acclaimed portraits除了画备受称赞的肖像画外”与“several major art collectors几位主要艺术收藏家”的对应可推知“这里指代玛丽·卡萨特(Mary Cassatt)还有其他身份”,由此可直接排除在结构上不正确的A项、C项以及D项,故B项“an adviser一名顾问”正确。 3. They are _______ investors who always make thorough investigations both on local and international markets before making an investment. A. implicit B. conscious C. cautious D. indecisive C 【句意】他们是谨慎的投资者,在投资前总是要对本地和国际市场进行深入的调查。 【解析】形容词词义辨析。implicit“含蓄的”;conscious“神志清醒的;慎重的;有意的”;cautious“小心的;谨慎的”;indecisive“优柔寡断的;不明确的”。由句中关键词“always make thorough investigations both on local and international markets”的对应知“谨慎的”符合语境,故C项正确。