【文章內(nèi)容簡(jiǎn)介】 rectly to the HIV virus. This process prevents the virus from mixing with human cells. The scientists say it can remove the effect of the virus and block its spreading. The Joint United Nations Program on HIV/AIDS reports that worldwide, nearly 37 million people were living with HIV in 2017. The organization says the largest number of those are in developing countries. Nearly twothirds of HIV cases are in Africa. Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease. The new study predicts the ricebased method will lead to longterm use of the antiHIV treatment across the developing world. Researchers said the groundbreaking discovery is realistically the only way that antiHIV bination treatments can be produced at a cost low enough for the developing world. They say the easiest and most costeffective way to use the rice will be to make it into a cream to be put on the skin. The HIVfighting proteins can then enter the body through the skin. People all over the world could grow the rice and make the cream themselves. This would prevent the cost and travel required for many patients to receive treatments and medicine. The process of changing the genetic structure of food crops has been debated for some time. Critics of genetically engineered crops believe they can harm people. The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.（1）What does the author intend to do in paragraph 3? A.Stress the urgency of HIV treatments.B.Provide some data about HIV.C.Remind readers of HIV prevention.D.Introduce HIV to the public.（2）In which way will the rice be used at the lowest cost? A.By transforming it into proteins.B.By adding it to an oral drug.C.By attaching it to the HIV virus.D.By processing it into a cream.（3）What can we infer about the genetic engineering process? A.It can prevent infections of HIV.B.It can produce dangerous chemicals.C.It still requires perfecting.D.It applies to the developed world.（4）From which is the text probably taken? A.A biology textbook.B.A health magazine.C.A social webpage.D.A first aid brochure.【答案】 （1）A（2）D（3）C（4）B 【解析】【分析】本文是一篇說(shuō)明文，介紹了科學(xué)家培育出可預(yù)防艾滋病病毒感染的轉(zhuǎn)基因水稻。研究人員表示，這一“突破性”的發(fā)現(xiàn)是“現(xiàn)在唯一的”以低成本為發(fā)展中國(guó)家生產(chǎn)抗艾滋病毒聯(lián)合治療的方法，但還有待于進(jìn)一步的完善。 （1）考查推理判斷。根據(jù)第三段中的“nearly 37 million people were living with HIV in 2017.... Now there is no cure for HIV/AIDS though there have been developments in oral drug treatments to slow the progression of the disease” 可知，“2017年全世界有近3700萬(wàn)人感染艾滋病毒。盡管口服藥物治療已經(jīng)有了進(jìn)展減緩了疾病的發(fā)展，但現(xiàn)在還沒(méi)有治愈艾滋病毒/艾滋病的方法”。由此可推斷出對(duì)于艾滋病的治療迫在眉睫，非常緊迫。分析選項(xiàng)可知A項(xiàng)符合題意， 故選A。 （2）考查細(xì)節(jié)理解。根據(jù)第五段中的“They say the easiest and most costeffective way to use the rice will be to make it into a cream to be put on the skin.”可知，最簡(jiǎn)單、最劃算的使用方法是將大米制成面霜涂在皮膚上?！皌he most costeffective”與“the lowest cost”是同義詞，“make it into a cream”與“process it into a cream”是同義的。故選D。 （3）考查推理判斷。根據(jù)最后一段中的“The scientific team says further testing is needed to ensure that the genetic engineering process does not produce any additional chemicals that could be dangerous to people.”可知，科學(xué)研究小組認(rèn)為要進(jìn)一步的測(cè)試，以確保基因工程過(guò)程不會(huì)產(chǎn)生任何可能對(duì)人類(lèi)有害的額外化學(xué)物質(zhì)。由此可推斷這種基因工程的過(guò)程還需要進(jìn)一步的完善。故選C。 （4）考查推理判斷?？v觀全文可知，本文介紹了最近的一項(xiàng)研究，一種新的轉(zhuǎn)基因水稻可以預(yù)防艾滋病病毒的感染。因此與人類(lèi)的健康有關(guān)，所以本文可能是出現(xiàn)在健康雜志上，故選B。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個(gè)題型的考查，是一篇科研類(lèi)閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，同時(shí)根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。5．犇犇閱讀理解 News anchors(主播) must have been reluctant to read out the following news: Xin Xiaomeng began working as the world39。s first female artificial(人工的) intelligence news anchor at Xinhua News Agency on Sunday, three months after a male robot joined the profession. Unlike previous news robots though, Xin does not read news like a cold machine。 she reads it almost like a human being. The muscles on her face stretch and relaxand her reactions changeas she continues reading. That39。s why many news anchors were worried: Will AI replace us in the near future? To find the answer, we have to analyse the technologies that support Xin at her job. Three key technologies are used to support Xin. First, samples of human voices are collected and synthesized (合成). This is followed by the collection and synthesis of human muscle movement samples. And third the voices and movements are married in a way that when the Al news anchor reads, the micro electric motors behind her face move to make her expressions seem more human. Yet we need a thorough knowledge of deep leaning technology to make a robot imitate a person39。s voice. The developer needs to collect tens of thousands of pieces of pronunciations, input them into the machine and match them with the text or the Al to lean and read. The process for imitating facial movements is similar. The developer has to analyse the movements of the 53 muscles in the human face, make a model set from the collected data for the AI news anchor to lean, and imitate the movements of facial muscles via programs Both the technologies used to make Xin39。s performance impressive are mature. The real difficulty lies in the third the technology to match the pronunciations with facial movements so that Xin expressions vary according to the content of the news report. In fact, Xins expressions don39。t always change according to the content. As a result, her expressions look anything but human. Actually. AI is still no match for human qualities.（1）What does the underlined word reluctant in the first paragraph mean? A.Delighted.B.Unwilling.C.Confused.D.Optimistic.（2）What can we infer about previous news robots? A.They read news without expressions.B.They looked like a human beingC.They could interview sports starsD.They could interact with audience.（3）What do we know about the thir