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

Peer（同龄人）Pressure
Peer pressure is just part of the challenges in life.   66  If you need further guidance, this article might help you. It provides three effective tips to deal with it:
Be with friends who respect your beliefs
You can go out with people who accept and respect the things you believe in and those who you know you can share your interests with. It is all right to be choosy with friends because you just want what is best for them and you.   67  You are just exhibiting what you know is right and good for both sides. Your friends will understand you for that. They can drag you away from discrimination and you can be confident that they will not leave you for your stand in life.
  68 
When you are driven by so many peer pressures, you can always stay away from it. You can actually decide not to be one of them. When you have decided on it, learn to be firm with your decision.   69 They should know that you cannot be forced to do certain things because you are strong and firm with what you believe in.
Learn how to say no
Learning to say no is one big factor to deal with some pressures from all of your friends. When you are convinced to do something you know that can only destroy you or ruin you, learn to say no.   70 You cannot just say yes to anything. You have a functional mind and you know what is best for you. So learn to say no even if saying no means losing your friends.

Don’t blame your brother. He had____reasons for not supporting you.

A．fragile            B．valid             C．grand            D．rough

Don’t blame your brother. He had____reasons for not supporting you.