14.Two Newcastle scientists are setting themselves to open our eyes to the medical truth by claiming that natural sunlight may help prevent skin cancer.
Dr.Ron Laura,professor of health education at Newcastle University,and senior chemist Mr.John Ashton said their research points to a complete (51)B of the accepted scientific theory.They said that sunscreen creams may help cause skin cancer,the artificial indoor light could be (52)C and that a range of drugs in common use could also (53)A melanoma--a type of cancer that appears as a dark spot on the skin.
The research is likely to be unwelcome in some traditional medical research circles.It is based on a new (54)D that our bodies are protected from skin cancer by the regulation of a group of complex vitamins (Vitamin D) and immune process.
The sunscreens,artificial light and drugs could all unfavorably affect the production of these vitamins and increase the skin's (55)A to the sun.But Dr.Laura said natural sunlight passing through the eyes helped(56)D the production of cancer protection Vitamin D.
He said recent statistics from the United States indicated that people who worked indoors all day in artificial light were more(57)A melanomas than those who worked outdoors.Indoor workers should try to have at least one hour of (58)C to direct sunlight every day,(59)B in the early morning and late afternoon when ultraviolet intensively was lower,Dr.Laura said.
Sunscreens,long (60)C as essential for beach lovers,could also (61)C the production of Vitamin D.Laura and Ashton said sunscreens give people a (62)A sense of security in thinking they are (63)B from the sun's rays.
Dr.Laura said more statistics(64)C their claim had come to light since the first article was published.He believes his research findings are too important to be (65)A to the scientific world.

51.A.contributionB.reversalC.combinationD.recognition
52.A.beneficialB.comfortableC.harmfulD.favorable
53.A.promoteB.reduceC.removeD.eliminate
54.A.a(chǎn)ssumptionB.lawC.conceptD.theory
55.A.sensitivityB.resistanceC.a(chǎn)daptationD.response
56.A.monitorB.measureC.slowD.stimulate
57.A.subject toB.unrelated toC.free ofD.dependent on
58.A.exerciseB.revealC.exposureD.experience
59.A.occasionallyB.preferablyC.enjoyablyD.extremely
60.A.receivedB.popularC.a(chǎn)cceptedD.identified
61.A.balanceB.a(chǎn)djustC.preventD.enhance
62.A.falseB.strongC.trueD.sharp
63.A.separatedB.protectedC.guardedD.prohibited
64.A.presentingB.doubtingC.backingD.providing
65.A.limitedB.emphasizedC.a(chǎn)cknowledgedD.explained

分析 兩位科學(xué)家研究發(fā)現(xiàn)自然的陽(yáng)光有助于預(yù)防皮膚癌,促進(jìn)維他命D的合成,而涂防曬霜來(lái)預(yù)防紫外線也是錯(cuò)誤的做法.這一醫(yī)學(xué)發(fā)現(xiàn)正在引起人們關(guān)注.

解答 51.B.考查名詞辨析.結(jié)合后句,說(shuō)涂防曬霜會(huì)導(dǎo)致皮膚癌.而之前我們涂霜是為了防止被曬傷,但現(xiàn)在證明陽(yáng)光會(huì)防止皮膚癌,因此這項(xiàng)研究結(jié)果是顛覆我們以往的理論知識(shí).A.contribution貢獻(xiàn) B.reversal逆轉(zhuǎn) C.combination聯(lián)合 D.recognition識(shí)別.故選B.
52.C.本題不難,這幾句都是再說(shuō)使用一些東西會(huì)帶來(lái)不好影響. 故選C.
53.A.本題和上題一樣,都是在講容易致癌的東西.melanoma雖然不認(rèn)識(shí),但是根據(jù)后句的解釋看得出選A,是促進(jìn)這種惡性循環(huán).故選A.
54.D.名詞辨析.句意,兩位科學(xué)家的說(shuō)法一般都是基于一種新的理論研究,并配有實(shí)驗(yàn)觀察結(jié)果.A.a(chǎn)ssumption 假定 B.law 法律  C.concept 概念 D.theory理論.故選D.
55.A.名詞辨析.本題是說(shuō)前面三個(gè)主語(yǔ)會(huì)大大影響維他命D的產(chǎn)生,使得皮膚難以抵御風(fēng)吹日曬,就變得對(duì)陽(yáng)光非常敏感.A.sensitivity 敏感 B.resistance 堅(jiān)持 C.a(chǎn)daptation 改造 D.response 回復(fù).故選A.
56.D.動(dòng)詞辨析.句意說(shuō)的是自然光線能有效促進(jìn)維他命D的生成.A.monitor 監(jiān)視 B.measure 措施 C.slow 減緩 D.stimulate 促進(jìn).故選D.
57.A.詞組辨析.句意,在室內(nèi)工作受人工光線照射的人更容易得黑素瘤.A.subject to 使遭受 B.unrelated to 與…無(wú)關(guān) C.free of 無(wú)…的 D.dependent on 依賴依靠.故選A.
58.C.動(dòng)詞辨析.句意,室內(nèi)工作者要花點(diǎn)時(shí)間暴露在陽(yáng)光下比較好.A.exercise 鍛煉 B.reveal 顯示 C.exposure 暴露 D.experience 經(jīng)驗(yàn).故選C.
59.B.副詞辨析.本題的preferably指的是"更好的"意思.說(shuō)最好是在清晨和傍晚與外界接觸,因?yàn)檫@時(shí)紫外線強(qiáng)度低.故選B.
60.C.動(dòng)詞辨析.本題結(jié)合后句,說(shuō)沙灘愛(ài)好者認(rèn)為抹防曬霜很重要,看得出他們是主動(dòng)接納防曬霜.A.received 接受 B.popular 流行 C.a(chǎn)ccepted 接受 D.identified 識(shí)別.故選C.
61.C.動(dòng)詞辨析.本題不難.呼應(yīng)前文便可知道是prevent.故選C.
62.A.句意,防曬霜帶給人們的安全感自然是錯(cuò)誤的.A.false 錯(cuò)誤的 B.strong 強(qiáng)壯的C.true 正確的 D.sharp 鋒利的.故選A.
63.B.動(dòng)詞辨析.人們一直都誤以為涂防曬霜可以保護(hù)皮膚不受太陽(yáng)光侵害.A.separated 分離 B.protected 保護(hù)C.guarded 守衛(wèi) D.prohibited 禁止.故選B.
64.C.本題看到Laura對(duì)自己的研究成果很自信,對(duì)他而言,許多數(shù)據(jù)自然是支持他的觀點(diǎn).back 有支持的意思,故選C.
65.A.本題可用排除法來(lái)做.A.limited 限制 B.emphasized 強(qiáng)調(diào) C.a(chǎn)cknowledged 公認(rèn) D.explained 解釋?zhuān)挥蠥選項(xiàng)"他的成果太重要了,不會(huì)被局限在科學(xué)界"較符合文意.故選A.

點(diǎn)評(píng) 本篇完型填空略有難度.主要體現(xiàn)在選項(xiàng)中的單詞以及短語(yǔ)上,考生有可能遇到不熟悉的單詞而選不出答案.這就要求考生平時(shí)多進(jìn)行知識(shí)儲(chǔ)備來(lái)應(yīng)對(duì)英語(yǔ)閱讀.

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