Test 11
Ⅰ.完形填空
Parents who smoke often open a window or turn on a fan to clear the air for their children,but experts now have identified a related threat to children’s health that isn’t as easy to get rid of:third-hand smoke.
That’s the term being __1__ to describe the invisible yet poisonous mixture of gases and particles(颗粒) clinging to smokers’ hair and __2__,not to mention cushions and carpeting,that stays long after second-hand smoke has cleared from a room.The remaining __3__heavy metals,carcinogens and even radioactive materials that young children can get on their hands and take in,__4__if they’re crawling or playing on the floor.
Doctors from MassGeneral Hospital for Children in Boston coined the term “third-hand smoke” to __5__these chemicals in a new study that __6__on the risks they pose to infants and children.The study was published in the __7__issue of the journal Pediatrics.
“Everyone knows that second-hand smoke is bad,__8__they don’t know about this,” said Dr.Jonathan P.Winickoff,the lead author of the study and an assistant professor of pediatrics at Harvard Medical School.
“When their kids are __9__the house,they might smoke.Or they smoke in the car.Or they strap(用带子捆扎) the kid in the car seat in the back and crack the window and __10__,and they think it’s okay because the second-hand smoke isn’t getting to their __11__.We needed a term to describe these tobacco toxins that aren’t __12__.”
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