(单选题)

A successful channel swimmer is said to be the swimmer who ______.

A.keeps himself on course with the tide changes

B.chooses the narrowest way to the other side

C.takes a curving course, following a radar boat

D.times his crossing so that he may reach the other side before tide

参考答案：D

参考解析：

细节理解题。根据第三段第一句“Much of the success in swimming the channel depends upon the timing with the tides.”及第三句“Perfect planning and timing are necessary to avoid being caught by the turn of the tide just as he nears the other side.”可知，成功取决于潮汐的时间，必须有完善的计划和时机，以免在他靠近另一侧时被潮流所困扰。故选D。

知识点：阅读理解四选一英语专业基础知识阅读理解教师招聘-小学英语