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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 being1to describe the invisible yet poisonous mixture of gases and particles(颗粒) clinging(依附) to smokers' hair and2, not to mention cushions and carpeting, that stays long after second-hand smoke has cleared from a room. The remaining3heavy metals, carcinogens(致癌物) and even radioactive materials that young children can get on their hands and take in,4if they're crawling or playing on the floor。
Doctors from MassGeneral Hospital for Children in Boston coined the term "third-hand smoke" to5these chemicals in a new study that6on the risks they pose to infants and children. The study was published in the7issue of the journal Pediatrics。
"Everyone knows that second-hand smoke is bad,8they 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 are9the 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 and10, and they think it's okay because the second-hand smoke isn't getting to their11. We needed a term to describe these tobacco toxins that aren't12."
The study reported on13toward smoking in 1,500 households across the United States. It found that the vast majority of both smokers and nonsmokers were14that second-hand smoke is harmful to children. Some 95 percent of nonsmokers and 84 percent of smokers15with the statement that "inhaling smoke from a parent's cigarette can16the health of infants and children"。
But17fewer of those surveyed were aware of the18of third-hand smoke. Since the term is so new, the researchers asked people if they agreed with the statement that "breathing air in a room19where people smoked yesterday can harm the health of infants and children"。
Only 65 percent of nonsmokers and 43 percent of smokers agreed with that20, which researchers interpreted as acknowledgement of the risks of third-hand smoke。

1.
1. A.
  told
2. B.
  discussed
3. C.
  used
4. D.
  mentioned
2.
1. A.
  shoes
2. B.
  clothing
3. C.
  body
4. D.
  mouth
3.
1. A.
  includes
2. B.
  covers
3. C.
  finds
4. D.
  improves
4.
1. A.
  especially
2. B.
  specially
3. C.
  immediately
4. D.
  regularly
5.
1. A.
  name
2. B.
  call
3. C.
  explain
4. D.
  describe
6.
1. A.
  focused
2. B.
  tended
3. C.
  tried
4. D.
  worked
7.
1. A.
  later
2. B.
  latest
3. C.
  best
4. D.
  previous
8.
1. A.
  but
2. B.
  and
3. C.
  however
4. D.
  or
9.
1. A.
  alongside
2. B.
  out of
3. C.
  in
4. D.
  beside
10.
1. A.
  cough
2. B.
  talk
3. C.
  observe
4. D.
  smoke
11.
1. A.
  cars
2. B.
  seats
3. C.
  kids
4. D.
  windows
12.
1. A.
  visible
2. B.
  invisible
3. C.
  poisonous
4. D.
  concrete
13.
1. A.
  policies
2. B.
  attitudes
3. C.
  bans
4. D.
  habits
14.
1. A.
  told
2. B.
  content
3. C.
  confident
4. D.
  aware
15.
1. A.
  opposed
2. B.
  agreed
3. C.
  fought
4. D.
  connected
16.
1. A.
  harm
2. B.
  destroy
3. C.
  improve
4. D.
  confuse
17.
1. A.
  quite
2. B.
  very
3. C.
  far
4. D.
  too
18.
1. A.
  chances
2. B.
  risks
3. C.
  abilities
4. D.
  conditions
19.
1. A.
  tomorrow
2. B.
  today
3. C.
  yesterday
4. D.
  weekend
20.
1. A.
  statement
2. B.
  mark
3. C.
  discussion
4. D.
  prejudice

阅读下面短文，从短文后各题所给的四个选项（A、B、C、D）中，选出可以填入空白处的最佳选项。

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 1to describe the invisible yet poisonous mixture of gases and particles(颗粒) clinging （依附）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 3heavy metals, carcinogens(致癌物) and even radioactive materials that young children can get on their hands and take in, 4if they're crawling or playing on the floor。

　　Doctors from MassGeneral Hospital for Children in Boston coined the term "third-hand smoke" to 5these chemicals in a new study that 6on the risks they pose to infants and children. The study was published in the 7issue of the journal Pediatrics。

　　"Everyone knows that second-hand smoke is bad, 8they 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 9the 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."

　　The study reported on 13toward smoking in 1,500 households across the United States. It found that the vast majority of both smokers and nonsmokers were 14that second-hand smoke is harmful to children. Some 95 percent of nonsmokers and 84 percent of smokers 15with the statement that "inhaling smoke from a parent's cigarette can 16the health of infants and children"。

　　But 17fewer of those surveyed were aware of the 18of third-hand smoke. Since the term is so new, the researchers asked people if they agreed with the statement that "breathing air in a room 19where people smoked yesterday can harm the health of infants and children"。

　　Only 65 percent of nonsmokers and 43 percent of smokers agreed with that 20, which researchers interpreted as acknowledgement of the risks of third-hand smoke.

1.A told B discussed C used D mentioned

2.A shoes B clothing C body D mouth

3.A includes B covers C finds D improves

4.A especially B specially C immediately D regularly

5.A name B call C explain D describe

6.A focused B tended C tried D worked

7.A later B latest C best D previous

8.A but B and C however D or

9.A alongside B out of C in D beside

10.A cough B talk C observe D smoke

11.A cars B seats C kids D windows

12.A visible B invisible C poisonous D concrete

13.A policies B attitudes C bans D habits

14.A told B content C confident D aware

15.A opposed B agreed C fought D connected

16.A harm B destroy C improve D confuse

17.A quite B very C far D too

18.A chances B risks C abilities D conditions

19.A tomorrow B today C yesterday D weekend

20.A statement B mark C discussion D prejudice

查看答案和解析>>

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(依附) 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(致癌物) 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 ."

The study reported on 13 toward smoking in 1,500 households across the United States. It found that the vast majority of both smokers and nonsmokers were 14 that second-hand smoke is harmful to children. Some 95 percent of nonsmokers and 84 percent of smokers 15 with the statement that "inhaling smoke from a parent's cigarette can 16 the health of infants and children"。

But 17 fewer of those surveyed were aware of the 18 of third-hand smoke. Since the term is so new, the researchers asked people if they agreed with the statement that "breathing air in a room 19 where people smoked yesterday can harm the health of infants and children"。

Only 65 percent of nonsmokers and 43 percent of smokers agreed with that 20 , which researchers interpreted as acknowledgement of the risks of third-hand smoke。

( ) 1. A. told B. discussed C. used D. mentioned

( ) 2. A. shoes B. clothing C. body D. mouth

( ) 3. A. includes B. covers C. finds D. improves

( ) 4. A. especially B. specially C. immediately D. regularly

( ) 5. A. name B. call C. explain D. describe

( ) 6. A. focused B. tended C. tried D. worked

( ) 7. A. later B. latest C. best D. previous

( ) 8. A. but B. and C. however D. or

( ) 9. A. alongside B. out of C. in D. beside

( ) 10. A. cough B. talk C. observe D. smoke

( ) 11. A. cars B. seats C. kids D. windows

( ) 12. A. visible B. invisible C. poisonous D. concrete

( ) 13. A. policies B. attitudes C. bans D. habits

( ) 14. A. told B. content C. confident D. aware

( ) 15. A. opposed B. agreed C. fought D. connected

( ) 16. A. harm B. destroy C. improve D. confuse

( ) 17. A. quite B. very C. far D. too

( ) 18. A. chances B. risks C. abilities D. conditions

( ) 19. A. tomorrow B. today C. yesterday D. weekend

( ) 20. A. statement B. mark C. discussion D. Prejudice