14.C 15.B
三、
Ⅰ
This passage tells us that everyone,either children or adults are curious about the world around them,which sometimes leads to a career in science and thus makes science develop by showing some examples.
Ⅱ
1.解析:根据第二段可知。
答案:D
2.解析:根据第三段“Other scientists who study living things work with the biological science.”
答案:C
3.解析:根据第四段“The blood carries oxygen and nutrition.When you run,your muscles work very hard and use the nutrition that the brain carries to them.The muscles need oxygen.The signal means that the muscles need more nutrition and oxygen.”
答案:A
4.解析:推理题,正因为不能解释,才会产生好奇。
答案:A
5.解析:中心概括题。本文通过事例论述人们对事物的好奇推进科学的发展。
答案:C
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