博士研究生入学英语考试试卷 c
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(2005. 5) zb{79Os[B
Part I. Reading Comprehension (40%) u:APGR^
Directions: Read the following five passages. Answer the questions below each passage by choosing A, B, C or D. Mark your answer on ANSWER SHEET. GKFRZWXdT
Passage One C~T,[
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Most American women know regular Pap smears cut the risk of cervical cancer, but that doesn’t mean they go in to get the test. Half the women who develop the disease haven’t had a Pap test for three years. But a new test may one day offer a user—friendlier alternative. Two studies in last week’s Journal of the American Medical Association report that a DNA test detects cervical cancer just as well as Pap smears do. Better yet, women can collect samples for the test themselves. The Pap smear has caused a fivefold drop in cervical cancer since 1960s. But since a doctor must take the smear during a pelvic exam, women who don’t have access to gynecologists aren’t screened. So a self-collected test could be good news for patients, like the 1,365 South Africans in one of the JAMA studies. They collected their own vaginal samples on swabs. Samples were sent to the United States, where a DNA test caught 66 percent of the women’s cervical cancers; 68 percent were detected by Pap smears. And when doctors collected the samples, that study, and a second one of Costa Rican women, found that DNA tests actually caught more cancers than Pap smears. >1
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Does this mean women can bid farewell to the Pap test? Probably not. Doctors think cervical cancer is caused by the transmitted human papilloma virus. The DNA test detects genetic material from 13 forms of it, which are found in 96 percents who have cervical cancer. But most young women who have papilloma virus don’t actually develop cancer. So the test can cause false alarms. DNA tests could prove useful for older women, though. Most women fight off the virus before they turn 40. If they don’t, they’re more likely to get cervical cancer. But they’re also less likely to get Pap smears because many stop visiting gynecologists after childbearing age, and the test gets more uncomfortable. So a quick, self-collected test could cut cervical cancer rates: “If we could make screening as easy as a urine test at the doctor’s office, we would get more coverage,” says Thomas Wright, lead author of the South African study and associate professor of Pathology at Columbia. Though true home testing awaits FDA approval and could be years away, general practitioners could administer the test, too. v)Y)tu>
Detection is one thing; treating cervical cancer is another. Doctors recently announced that a combination of radiation and chemotherapy can cut the risk of death 30 to 50 percent. And researchers hope to someday prevent papilloma infections: “Ultimately, vaccines will be the best way we prevent cervical cancer worldwide,” Wright predicts. But for now, the DNA test could help mainly in countries that can afford the $6 billion the United States spends on Pap screening every year. But there’s one important caveat: a new test will be useful only if patients can get medical treatment afterward. b\0>uU
1. The Pap smear __________________________. u9 &$`N_G
A) has caused a fivefold drop in cervical cancer since the 1960s B<I(t"s
B) caught 66 percent of the women’s cervical cancers , ~
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C) Caught more cancers than the DNA Test uZL]mwkj]
D) Is very convenient for women to do self-examination Bug.>ln1
2. Why the DNA test cannot replace Pap smear? +UDt2
A) Doctors think cervical cancer is caused by the sexually transmitted human papilloma virus. rx9*/Q0F
B) The DNA test detects genetic material from 12 forms of papillooma virus, which are found in 96 percent of patients who have cervical cancer. o6A$)m5V
C) Most young women who have papilloma virus don’t actually develop cancer. T{
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D) The DNA test can cause false alarms. -u@ ^P7
3. Which of the following statement is not correct? i!2k
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A) Home DNA test has not yet been approved by DNA. ~qqxHymc
B) DNA tests could prove useful for older women. Most women fight off the virus before they turn 40. !!Ww#x~k$[
C) Doctors recently announced that a combination of radiation and chemotherapy can cure cervical cancer. "BT M,CB
D) The DNA test could help mainly in countries that can’t afford the $6 billion the United States spends on Pap screening every year. F%
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Passage Two ?w(hPUd!2
Although language is used to transmit information, the informative functions of language are fused with older and deeper functions so that only a small portion of our everyday speech can be described as purely informative. The ability to use language for strictly informative purposes was probably developed relatively late in the course of linguistic evolution. Long before that time, our ancestral species probably made the sorts of cries animals do to express feelings of hunger, fear, loneliness, and the like. Gradually these noises seem to have become more differentiated, transforming the cries into language as we know it today. sAc1t`
Although we have developed language in which accurate reports may be given, we still use language as vocal equivalents of gestures such as crying in pain. When words are used as the vocal equivalent of expressive gestures, language is functioning in pre-symbolic ways. These pre-symbolic uses of language coexist with our symbolic system, so that the talking we do in everyday life is a thorough blending of symbolic and pre-symbolic language. SY5}Bu#
What we call social conversation is mainly pre-symbolic in character. When we are at a large social gathering, for example, we all have to talk. It is typical of these conversations that, except among very good friends, few of the remarks made have any informative value. We talk together about nothing at all and thereby establish a relationship. Lan|(
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There is a principle at work in the selection of the subject matter we deem appropriate for social conversation. Since the purpose of this kind of talk is the establishment of communion, we are careful to select subjects about which agreement is immediately possible. With each new agreement, no matter how commonplace, the fear and suspicion of the stranger wear away, and the possibility of friendship emerges. When further conversation reveals that we have friends or political views orartistic values or hobbies in common, a friend is made, and genuine communication and cooperation can begin. :jv(-RTI
4. The author uses the term “pre-symbolic language” to mean ______________________. QD0x^v8
A) language used between friends a2.6S./
B) language that lacks an elaborate grammatical structure zI[<uvxzW`
C) nonverbal expressions used in communicating f~W+Rt7o
D) language that does not convey specific information )!0}<_2
5. The primary value of pre-symbolic language for humans is that it ___________________. K W&muD
A) Is common to all languages rather than unique to any one language ynw(wSH=
B) Permits and aids the smooth functioning of interpersonal relationships Lx>[`QT
C) Helps us understand and express our emotions ez32k[eV!
D) Allows for a desirable amount of social mobility d,?D '/
6. The most crucial difference between pre-symbolic and symbolic language lies in the ____________. W#U|;@"
A) origin and developmental path of each mode in linguistic evolution LT$t%V0?.e
B) degree to which each mode may be accompanied by expressive gestures 0&