单选题
[阅读选择]But just like your alarm clock， your internal clock can be reset. In fact， it automatically resets itself every day. How？ By using the light it gets through your eyes.
Scientists have known for a long time that the light of day and the dark of night play important roles in setting our internal clocks. For years， researchers thought that the signals that synchronize the body‘s clock were handled through the same pathways that we use to see.
Which of the following statements is NOT true according to the fourth and fifth paragraphs？
A.Our biological clock resets itself automatically.
B.Light gets through our eyes and resets our biological clock.
C.Our internal clock as well as the alarm clock can be reset automatically.
D.Our internal clock， like the alarm clock， can be reset.
正确答案：C
答案解析：是非判断题，根据第四、五自然段首句But just like（和……一样） your alarm clock, your internal clock can be reset. In fact, it automatically resets itself every day. How By using the light it gets through your eyes.代词 it指代biological clock，不是选项internal clock和alarm clock都可以自动调节。得到答案为C。A D 我们的生物钟自动调节。B 光线通过我们的眼睛调节生物钟，与原文一致。