U.S.Blacks Hard hit by Cancer
Death rates for cancer are falling for all Americans.but black Americans are still more likely to die of cancer than whites，the American Cancer Society said Monday
In a special report on cancer and blacks，the organization said blacks are usually diagnosed with cancer later than whites，and they are more likely to die of the disease.
This could be because of unequal(不平等的)access to medical Care。Because blacks are more likely to have other diseases as well，and perhaps because of differences in the biology(生物学)of the can cancer itself, the report added.
“In general，black Americans have less hope of surviving five years after diagnosis thail whites for all cancer sites and all stages of diagnosis.”the report said.
“In describing cancer statistics for black Americans，this report recognizes that many of the differences associated with race may be caused by unfair social and economic differences and unequal access to medical care.’
The cancer society said blacks should be encouraged to get check-ups(体格检查)earlier,When cancer is more treatable.and it said more research is needed to see if biological differences play a role.
“The new statistics emphasize the continuing importance of wiping out these unfair socialdifferences through public policy and education efforts，”the organization said in a statement.
But it also noted a出op in cancer death rates.
“Cancer death rates in both sexes for all sites combined have dropped greatly among black Americans since 1992，as have incidence rates(发生率),”said the report.
31 Black Americans arc more likely to die of cancer than
A people in other countries.
B white Americans.
C all other Americans.
D their ancestors.
32 Which may NOT be a reason for higher cancer death rates among US blacks?
A Unequal access to medical Care.
B Greater probability of having other diseases.
C Differences in the biology of the cancer.
D Early diagnosis.
33 Cancer is more treatable if it is.detected
A in an early stage.
B in a late stage.
C a110fa sudden.
D together with other diseases.
34 Public policy and education efforts may help to do away with
A death rates.
B various cancers.
C unfair social differences.
D biological differences.
35 Since 1992，cancer death rates among black Americans
A have been going up and down.
B have remained stable.
C have increased.
D have fallen.
答案解析
31.正确答案为B。文章第一段只是将美国黑人与美国白人的癌症死亡率进行了比较。
32.正确答案为D。前三项原因在文章第三段中都被提到了，而早期诊断是有助于降低癌症死亡率的。
33.正确答案为A。从文章的第六段可以得知，癌症越早发现越有利于治疗。
34.正确答案为C。文章的第七段提到，大力开展宣传教育有助于消除不平等的社会差异。
35.正确答案为D。从文章的最后一段可以得知，1992年以来，美国黑人的癌症死亡率下降了。
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