Don't blame genes for aging facial skin. A new study of twins suggests you can   1   those coarse(粗糙的) wrinkles, brown or pink spots, and dilated(膨胀的) blood vessels on too much time in the sun, smoking, and being overweight.

Because twins share genes, but may have  2  exposures to environmental factors, studying twins allows an, "opportunity to control for genetic susceptibility(敏感性)," Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and colleagues  3  in the latest issue of Archives of Dermatology.

Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is  4  more to environment and lifestyle than  5   factors.

But when it   6   skin cancer, the researchers say their findings support previous reports that   7  environment and genes affect skin cancer risk.

Baron's team   8   facial skin of 130 twins, 18 to 77 years old, who lived  9   in the northern Midwest and Eastern regions of the U.S. who were  10   the Twins Days Festival in Ohio in August 2002.

At this time, each of the twins also  11    reported how their skin burned or tanned  12    sunscreen(防晒霜), their weight, and their history of skin cancer, smoking, and alcohol drinking.

The study group   13   of 52 fraternal and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status. Identical(同卵的) twins share all of their genes and fraternal twins share only about half.

From these data, the researchers  14  strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental  15 

 16   contrast, sunscreen use and drinking alcohol appeared correlated with   17    skin damage.

Baron and colleagues say the current findings, which highlight ties between facial   18  and potentially avoidable  19   factors -- such as smoking, being overweight, and   20   overexposure to the sun's damaging rays -- may help motivate people to minimize these risky behaviors.

(    ) 1. A. blame                     B. owe                 C. take                 D. bring

(    ) 2. A. same                       B. different           C. similar             D. common

(    ) 3. A. explain                    B. confirm            C. declare             D. shout

(    ) 4. A. equal                             B. related              C. close                D. strict

(    ) 5. A. characteristic           B. personal           C. natural             D. genetic

(    ) 6. A. comes to                 B. talks of             C. refers to           D. gets to

(    ) 7. A. all                          B. neither             C. both                 D. either

(    ) 8. A. examined                B. checked            C. inspected          D. interviewed

(    ) 9. A. most                       B. usually             C. mostly              D. always

(    ) 10. A. joining                  B. representing      C. attending          D. remarking

(    ) 11. A. separately              B. lonely              C. commonly               D. truly

(    ) 12. A. with                             B. on                    C. in                    D. without

(    ) 13. A. consisted                      B. made up          C. contained         D. included

(    ) 14. A. documented           B. recorded           C. reported           D. noted

(    ) 15. A. damage                 B. exploration       C. protection         D. material

(    ) 16. A. In                         B. By                   C. As                    D. At

(    ) 17. A. lesser                    B. more                C. no                    D. fewer

(    ) 18. A. look                             B. aging                      C. expression               D. wrinkle

(    ) 19. A. environmental               B. genetic             C. emotional         D. psychological

(    ) 20. A. protected                      B. planned            C. unprotected       D. prevented

Don't blame genes for aging facial skin. A new study of twins suggests you can   1   those coarse(粗糙的) wrinkles, brown or pink spots, and dilated(膨胀的) blood vessels on too much time in the sun, smoking, and being overweight.

Because twins share genes, but may have  2  exposures to environmental factors, studying twins allows an, "opportunity to control for genetic susceptibility(敏感性)," Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and colleagues  3  in the latest issue of Archives of Dermatology.

Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is  4  more to environment and lifestyle than  5   factors.

But when it   6   skin cancer, the researchers say their findings support previous reports that   7  environment and genes affect skin cancer risk.

Baron's team   8   facial skin of 130 twins, 18 to 77 years old, who lived  9   in the northern Midwest and Eastern regions of the U.S. who were  10   the Twins Days Festival in Ohio in August 2002.

At this time, each of the twins also  11    reported how their skin burned or tanned  12    sunscreen(防晒霜), their weight, and their history of skin cancer, smoking, and alcohol drinking.

The study group   13   of 52 fraternal and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status. Identical(同卵的) twins share all of their genes and fraternal twins share only about half.

From these data, the researchers  14  strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental  15 

 16   contrast, sunscreen use and drinking alcohol appeared correlated with   17    skin damage.

Baron and colleagues say the current findings, which highlight ties between facial   18  and potentially avoidable  19   factors -- such as smoking, being overweight, and   20   overexposure to the sun's damaging rays -- may help motivate people to minimize these risky behaviors.

(    ) 1. A. blame                         B. owe                 C. take                 D. bring

(    ) 2. A. same                      B. different           C. similar             D. common

(    ) 3. A. explain                    B. confirm            C. declare             D. shout

(    ) 4. A. equal                             B. related              C. close               D. strict

(    ) 5. A. characteristic           B. personal           C. natural             D. genetic

(    ) 6. A. comes to                 B. talks of             C. refers to           D. gets to

(    ) 7. A. all                          B. neither             C. both                 D. either

(    ) 8. A. examined               B. checked            C. inspected          D. interviewed

(    ) 9. A. most                      B. usually             C. mostly              D. always

(    ) 10. A. joining                  B. representing      C. attending          D. remarking

(    ) 11. A. separately                  B. lonely              C. commonly               D. truly

(    ) 12. A. with                             B. on                    C. in                    D. without

(    ) 13. A. consisted                      B. made up         C. contained       D. included

(    ) 14. A. documented           B. recorded           C. reported           D. noted

(    ) 15. A. damage                 B. exploration       C. protection        D. material

(    ) 16. A. In                         B. By                   C. As                    D. At

(    ) 17. A. lesser                    B. more               C. no                    D. fewer

(    ) 18. A. look                             B. aging                      C. expression               D. wrinkle

(    ) 19. A. environmental               B. genetic             C. emotional        D. psychological

(    ) 20. A. protected                      B. planned            C. unprotected       D. prevented

Don't blame genes for aging facial skin. A new study of twins suggests you can1those coarse(粗糙的) wrinkles, brown or pink spots, and dilated(膨胀的) blood vessels on too much time in the sun, smoking, and being overweight.
Because twins share genes, but may have2exposures to environmental factors, studying twins allows an, "opportunity to control for genetic susceptibility(敏感性)," Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and colleagues3in the latest issue of Archives of Dermatology.
Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is4more to environment and lifestyle than5factors.
But when it6skin cancer, the researchers say their findings support previous reports that 7environment and genes affect skin cancer risk.
Baron's team8facial skin of 130 twins, 18 to 77 years old, who lived9in the northern Midwest and Eastern regions of the U.S. who were 10the Twins Days Festival in Ohio in August 2002.
At this time, each of the twins also11reported how their skin burned or tanned12sunscreen(防晒霜), their weight, and their history of skin cancer, smoking, and alcohol drinking.
The study group13of 52 fraternal and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status. Identical(同卵的) twins share all of their genes and fraternal twins share only about half.
From these data, the researchers14strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental15
16contrast, sunscreen use and drinking alcohol appeared correlated with17skin damage.
Baron and colleagues say the current findings, which highlight ties between facial18and potentially avoidable19factors -- such as smoking, being overweight, and20overexposure to the sun's damaging rays -- may help motivate people to minimize these risky behaviors.

1. 1.
   1. A.
      blame
   2. B.
      owe
   3. C.
      take
   4. D.
      bring
2. 2.
   1. A.
      same
   2. B.
      different
   3. C.
      similar
   4. D.
      common
3. 3.
   1. A.
      explain
   2. B.
      confirm
   3. C.
      declare
   4. D.
      shout
4. 4.
   1. A.
      equal
   2. B.
      related
   3. C.
      close
   4. D.
      strict
5. 5.
   1. A.
      characteristic
   2. B.
      personal
   3. C.
      natural
   4. D.
      genetic
6. 6.
   1. A.
      comes to
   2. B.
      talks of
   3. C.
      refers to
   4. D.
      gets to
7. 7.
   1. A.
      all
   2. B.
      neither
   3. C.
      both
   4. D.
      either
8. 8.
   1. A.
      examined
   2. B.
      checked
   3. C.
      inspected
   4. D.
      interviewed
9. 9.
   1. A.
      most
   2. B.
      usually
   3. C.
      mostly
   4. D.
      always
10. 10.
    1. A.
       joining
    2. B.
       representing
    3. C.
       attending
    4. D.
       remarking
11. 11.
    1. A.
       separately
    2. B.
       lonely
    3. C.
       commonly
    4. D.
       truly
12. 12.
    1. A.
       with
    2. B.
       on
    3. C.
       in
    4. D.
       without
13. 13.
    1. A.
       consisted
    2. B.
       made up
    3. C.
       contained
    4. D.
       included
14. 14.
    1. A.
       documented
    2. B.
       recorded
    3. C.
       reported
    4. D.
       noted
15. 15.
    1. A.
       damage
    2. B.
       exploration
    3. C.
       protection
    4. D.
       material
16. 16.
    1. A.
       In
    2. B.
       By
    3. C.
       As
    4. D.
       At
17. 17.
    1. A.
       lesser
    2. B.
       more
    3. C.
       no
    4. D.
       fewer
18. 18.
    1. A.
       look
    2. B.
       aging
    3. C.
       expression
    4. D.
       wrinkle
19. 19.
    1. A.
       environmental
    2. B.
       genetic
    3. C.
       emotional
    4. D.
       psychological
20. 20.
    1. A.
       protected
    2. B.
       planned
    3. C.
       unprotected
    4. D.
       prevented

For years I wanted a flower garden. I spent hours and days thinking of different things I could plant that would look nice together.
But then we had Matthew. And Marvin. And the twins, Alisa and Alan. And then Helen. Five children. I was too busy raising them to grow a garden.
Money was tight, as well as time. Often when my children were little, one of them would want something that cost too much, and I’d have to say, “Do you see a money tree outside? Money doesn’t grow on trees, you know.”
Finally, all five children got through high school and college and were off on their own. I started thinking again about having a garden.
I wasn’t sure, though. I mean, gardens do cost money, and after all these years I was used to living on a pretty poor, no-frills budget (预算).
Then, one spring morning, on Mother’s day, I was working in my kitchen. Suddenly, I realized that cars were tooting their horns as they drove by. I looked out of the window and there was a new tree, planted right in my yard. I thought it must be a weeping willow, because I saw things blowing around on all its branches. Then I put my glasses on—and I couldn’t believe what I saw. There was a money tree in my yard!
I went outside to look. It was true! There were dollar bills, one hundred of them, tied all over the tree. Think of all the garden flowers I could buy with one hundred dollars! There was also a note attached: “IOU eight hours of digging time. Love, Marvin.”
Marvin kept his promise, too. He dug up a nice ten-by-fifteen foot bed for me. And my other children bought me tools, a trellis (绷架), a sunflower stepping stone and gardening books.
That was three years ago. My garden’s now very pretty, just like what I wanted. When I go out to weed or tend my flowers, I don’t seem to miss my children as much as I once did. It feels like they are right there with me.
I live up in Michigan’s Upper Peninsula, where winters are long and cold, and summers are too short. But every year now, when winter sets in, I look out of my window and think of the flowers I’ll see next spring in my little garden. I think about what my children did for me, and I get tears in my eyes---every time.
I’m still not sure that money grows on trees. But I know love does.
【小题1】By saying “Do you see a money tree outside?”, the mother actually means _____.

D
At age 61, identical twins Jeanne and Susan no longer look exactly alike. Susan smoked for many years and is an admitted sun worshipper, whose habits Jeanne does not share. A new study of twins suggests you can blame those coarse(粗糙的)wrinkles, brown or pink spots on too much time in the sun, smoking, and being overweight.
Because twins share genes, but may have different exposures to environmental factors studying twins allows an “opportunity to control for genetic susceptibility(易受影响性),” Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and his colleagues explain in the latest issue of Archives of Dermatology.
Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is related more to environment and lifestyle than genetic factors.
But when it comes to skin cancer, the researchers say their findings support previous reports that both environment and genes affect skin cancer risk.
Baron’s team examined facial skin of 130 twins, 18 to 77 years old, who lived mostly in the northem Midwest and Eastern regions of the US, who were attending the Twins Days Festival in Ohio in August 2002. At this time, each of the twins also separately reported how their skin burned or tanned(晒黑)without sunscreen, their weight, and their history of skin cancer, smoking, and alcohol drinking. The study group consisted of 52 fraternal(异卵双生)and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status.
From these data, the researchers noted strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental damage. By contrast, sunscreen use and drinking alcohol appeared related to less skin damage.
Baron and his colleagues say the current findings, which highlight ties between facial aging and potentially avoidable environmental factors—such as smoking, being overweight, and unprotected overexposure to the sun’s damaging rays—may help motivate people to minimize these risky behaviors.
67．Which of the following is true according to the passage?
A．Jeanne and Susan share all the habits including smoking.
B．Skin aging is related more to environment and lifestyle than genetic factors.
C．Only identical twins can take part in the research.
D．Sunscreen use cannot help people have less skin damage.
68．Why did Baron’s team do the research on twins?
A．Twins are more likely to suffer from skin cancer.
B．It may guarantee the research is not influenced by genetic factors.
C．It gives others an opportunity to control twins’ genes.
D．It helps find twins are exposed to different environments.
69．What can you infer from the last paragraph?
A．This research makes people aware of dangerous lifestyles.
B．The environmental factors are unavoidable.
C．Being exposed to the sun is absolutely damaging.
D．There is little relationship between skin aging and environment.
70．The passage is mainly concerned with___________
A．skin cancer and environment
B．identical twins research
C．aging skin and environmental factors
D．genes and lifestyles