2017年吉林高考英语完型填空专题模拟13

WASHINGTON—Patients with HIV, the virus that causes AIDS, often develop vitamin deficiencies(缺乏). A new study has found that giving these patients a multivitamin with a mineral supplement(补充) helps to fight the disease and slows the disease's progression.

Sub-Saharan Africa has always been the centre of the AIDS. In Botswana, despite aggressive prevention campaigns, one out of every four adults is infected with HIV. Professor Marianna Baum based her latest research there.

Baum recruited almost 900 newly infected adults who had not yet received the anti-AIDS drugs that target the virus.

These adults were then divided into groups that randomly received different combinations of vitamins B, C and E, the mineral selenium(硒) or a placebo(安慰剂).

Most patients with HIV become deficient in these vitamins, which help improve immunity(免疫). Baum said she initially thought the multivitamins alone or selenium alone would be effective in strengthening the immune system, but found that incorrect.

“We were surprised to find that only the combination was effective，” said Baum.

Research shows that when people with HIV receive anti-retroviral drugs (抗逆转录病毒药物) shortly after infection, they can remain healthy and are less likely to pass the virus to others. For many countries, however, the cost of these anti-AIDS drugs is still prohibitive.

Baum said the vitamin and mineral combination treatment should help low-income countries better control the virus.

“A simple multivitamin supplementation with selenium provided early in HIV disease can actually slow the HIV disease progression and it is safe. It is low cost and it should be provided very early in HIV infection，” said Baum.

Baum said the supplements are not meant to replace anti-retroviral therapy, but can help those who cannot obtain the drugs.

Dr Anthony Fauci, a world-famous expert on AIDS, disagreed.

“I haven't read the paper, but having taken care of HIV-infected individuals for three decades, I would doubt that vitamins are going to have a major effect on stopping the virus，” said Fauci.

Fauci said vitamin and mineral supplements may make a patient generally healthier, but the only thing that truly works to stop HIV is anti-retroviral treatment.

Baum's study was published in The Journal of the American Medical Association.

1.Where is the passage probably taken?

A.A scientific report.

B.A newspaper.

C.A school textbook.

D.A science fiction.

2.What can we learn from professor Baum's study?

A.It is vitamin deficiencies that may have caused people to develop AIDS.

B. More than one third people in Botswana are diagnosed with HIV disease.

C. Professor Baum divided 900 HIV patients randomly into several groups.

D. Only the combination of vitamin and mineral could slow AIDS' process.

3.Which of the statements is possibly supported by Dr Anthony Fauci?

A.The finding is great news for low-income patients.

B. Vitamins will have a great impact on stopping HIV.

C. Anti-retroviral treatment is effective to stop HIV.

D. Vitamins should be used early in HIV infection.

4.The underlined word “prohibitive” in Paragraph 7 is closest to “________” in meaning.

A.deadly B.costly

C.decreasing D.forbidding

【文章大意】 本文是一篇新闻报道，主要报道了一项科研新发现，即补充多种维生素和矿物质有助于抵抗并延缓艾滋病的恶化。

1.B　推理判断题。根据文章的标头WASHINGTON可推知，本文是一篇来自华盛顿的新闻报道，故选B项。

2.D　推理判断题。根据文章的第五段的最后一句“Baum said she initially thought the multivitamins alone or selenium alone would be effective in strengthening the immune system, but found that incorrect.”并结合全文可知，只有维生素和矿物质的综合摄入才能够延缓艾滋病的恶化，故选D项。

3.C　推理判断题。根据文章第七段的第一句“Research shows that when people with HIV receive anti-retroviral drugs (抗逆转录病毒药物) shortly after infection, they can remain healthy and are less likely to pass the virus to others.”可推知，抗逆转录病毒的治疗方法对抵抗艾滋病是有效的，故选C项。

4.B　词义猜测题。根据文章第七段中however的转折意义可知，尽管抗逆转录病毒药物是有效的，但是价格不菲，许多国家的人是用不起的，故选B项。costly昂贵的，价格不菲的。