答案 B [根据文章倒数第二段可知,如果用liquid wood代替塑料,科学家首先考虑的是应该如何去除liquid wood里面高含量的硫。]
23Which of the following is NOT true?
A.Lignin contains poisons that can cause cancer.
B.Plastic does harm to our society in many ways.
C.The liquid wood helps to protect our environment
D.Arboform isn't usable for home need at present.
答案 A [细节理解题。文章中没有介绍木质素有致癌的毒素。]
24.The best title of the passage should be ________.
A.Plastic Has a Number of Disadvantages
B.A New Material—Plastic
C.Liquid Wood to Replace Plastic
D.How to Protect Arboform
答案 C [主旨大意题。本文主要说明了一种新型材料liquid wood将会代替塑料,所以C可作文章的标题。]
B
体裁:议论文 话题:社会 词数:249 时间:7′
Everyone dreams of changing the world.But can teenagers really make a difference? And how should we go about it?
Michael Norton's book “365 Ways to Change the World” is a good starting point.The book gives an inspiring idea or task to do for every single day of the year.The tasks include volunteering at a local homeless shelter and planting a tree.
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