2014年下半年英语四级选词填空真题(文都版)
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As an Alaskan fisherman， Timothy June， 54，used to think that he was safe from industrial pollutants(污染物) at his home in Haines - a town with a population of 2，400 people and 4，000 eagles， with 8 million acres of protected wild land nearby. But in early 2007， June agreed to take part in a (36) survey of 35 Americans from seven states. It was a biomonitoring project， in which people's blood and urine(尿) were tested for (37) traces of chemicals - in this case， three potentially dangerous classes of compounds found in common household (38) products like face cream， tin cans， and shower curtains. he results- (39) released in November in a report called "Is It in Us?" by an environmental groups - were rather worrying. Every one of the participants， (40) ranging from an Illinois state senator to a Massachusetts minister， tested positive for all three classes of pollutants. And while the (41) simple presence of these chemicals does not (42) necessarily indicate a health risk， the fact that typical Americans carry these chemicals at all (43) shocked June and his fellow participants.
Clearly， there are chemicals in our bodies that don't (44) belong there. A large， ongoing study conducted by the Centers for Disease Control and Prevention has found 148 chemicals in Americans of all ages. And in 2005，the Environmental Working Group found an (45) average of 200 chemicals in the blood of 10 new-borns. "Our babies are being born pre-polluted，" says Sharyle Patton of Commonweal， which cosponsored "Is It in Us?" "This is going to be the next big environmental issue after climate change.
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