Shrilk has great potential,the inventors said.Materials from which it is made are plentiful in nature,found in everything ranging from shrimp shells,insect bodies to living plants.That makes shrilk low cost,and its mass production possible should it be used for products demanding a lot of material.
Work on shrilk is continuing in the lab.The inventors said the material becomes flexible when wet,so they're exploring ways to use it in wet environments.They're also developing simpler production processes,which could be used for non-medical products
【语篇导读】 本文是一篇说明文。文章主要介绍了一种在将来某一天可能会替代塑料的环保材料。这种材料的原材料在大自然中很容易获得且具有耐用、成本低、可生物降解等优点。
.
A.remarkable design
B.interesting name
C.major features
D.basic elements
解析 推理判断题。文章第一段介绍了哈佛大学研究者最新发明的一种耐用、成本低、可生物降解的材料介绍了这种材料的主要特征。故C项正确。
答案 C
A.Using it properly.
B.Producing it cheaply.
C.Developing its properties quickly.
D.Evaluating its contributions fairly.
解析 推理判断题。根据第二段第三句“Decades later-time products...”可推知如何合理利用这种材料成了焦点问题。故A项正确。
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