答案 B
4.The passage is most probably a ________.
A.science fiction novel
B.science news report
C.biography of researchers
D.social affairs report
解析 文章体裁题。由第一段SALTLAKE CITY,March 1,2010可推断本文是一篇资讯体裁的文章。故答案为B。
答案 B
B
It spins.It grows.It’s a huge,floating “garbage patch”,sometimes referred to as the “eighth continent”.
Located in the Pacific Ocean between California and Hawaii and measuring roughly twice the size of Texas,this strange mass is home to hundreds of species of sea life and is constantly expanding.Without an official title,it is known as “The Great Pacific Garbage Patch”.The island consists almost entirely of manmade trash.It currently weighs approximately 3.5 million tons,80 per cent of which is plastic.
The air movement is further trapping the garbage.“With the winds blowing in,it’s the perfect environment for trapping,”according to an article in the San Francisco Chronicle.
The garbage is doing what could be irreparable(不可弥补的)harm to sea life,the water it’s in,and eventually humans.
Though plastic can break down into smaller and smaller pieces over time,its original molecular composition(分子成分)won’t change.The result is a great amount of fine plastic sand that looks like food.Unfortunately,that cannot be digested,so sea birds or fish can eventually starve to death with a stomach full of plastic,for the plastic sand in a creature’s body contains poisonous chemicals.
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