The scientists found different dyes moved through silkworms' bodies differently. Some never made it into the worms' silk at all. Others colored the worms and their silk, but the color disappears before the silk is turned into fabric. Only one dye, named “direct acid fast red”， showed up in the final, washed silk threads. By the time it made it there, it was a pleasant, light pink.

　　5. The text is most probably a(n) ________.

　　A．science report

　　B．tourist guide

　　C．animal experiment

　　D．fashion advertisement

　　6. Silkworms can produce pink silk because ________.

　　A．they are born pink

　　B．they are dyed pink

　　C．they grow in pink water

　　D．they are fed dyed food

　　7. Where is the experiment carried out?

　　A．In America.

　　B．In India.

　　C．In Israel.

　　D．In China.

　　8. How many dyes have been proved successful in the experiment?

　　A．One.

　　B．Three.

　　C．Five.

　　D．Seven.

　　答案：

　　【语篇解读】　本文是一篇说明文。你听说过蚕能吐出粉色的丝吗？印度的科学家做了大量的实验，他们通过给蚕喂一些喷过染色剂的桑树叶子，最终成功地使蚕吐出了粉色的丝。

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