【文章內(nèi)容簡介】 tion 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)在還沒有治愈艾滋病毒/艾滋病的方法”。由此可推斷出對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)一步的測試，以確保基因工程過程不會產(chǎn)生任何可能對人類有害的額外化學(xué)物質(zhì)。由此可推斷這種基因工程的過程還需要進(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】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個題型的考查，是一篇科研類閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，同時根據(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 Babies have an astonishing talent that adults entirely lose. By the age of one, they can recognise the significant noises around them and group them into a language. When we have lost this capacity as adults, it bees enormously difficult to distinguish between sounds that are glaringly different to a native speaker. It all sounds Greek to us. This is because the range of possible sounds that humans use to convey meaning may be as high as 2,000, but few languages use more than 100 and even then the significant noises－the phonemes (音素) of a language－each cover a range of sounds and so vague distinctions which would change the meaning of a word in other languages. But where do these phonemes e from and why do they shift over time? New research suggests that the apparently arbitrary distribution of some sounds around the world may be partially explained by diet. This is unexpected. We39。d rather think of language as product of our thought rather than of the arrangement of our teeth. In reality, though, any given language must be both. Hunter gatherer languages very seldom use the sounds known as labiodentals (唇齒音)－those such as f and v－that are made by touching the lower lip with the upper teeth. Only two of the hundreds of Australian aboriginal languages use them, for example. But in cultures that have discovered farming, these consonants (輔音) are much more mon. The argument goes that farmers eat more cooked food and more dairy than hunter gatherers. Either way, they need to chew mush less, and to bite less with their front teeth. So farmers grew up with smaller lower jaws and more of an overbite than their ancestors who had to bite through harder foods. It became easier for them to make the labiodental consonants instead of purely labial (唇音) ones: one example is that f e to take the place of p. Romans said pater but English speakers (unless they39。re Rees－Moggs) say father. Beyond these particular changes, the story highlights the way in which everything distinctively human is both material and spiritual: speech must bine sound and meaning, and the meaning can39。t exist or be transmitted without a real object. But neither can it be reduced to the purely physical, as our inability to understand or even to recognise foreign languages makes clear. The food we eat shapes our jaws, and our jaws in turn shape the sounds of our language. The ease with which we eat probably shapes our thought too, as anyone who has suffered toothache could testify. What we eat may have shaped the sounds of our language, but how we eat changes how we feel and what we use language to express. A family meal is very different from a sandwich at the office desk, even if the calorie is the same. Food has purposes and meanings far beyond keeping us alive and pleasing the Palate (味覺).（1）Compared with adults, babies could more easily . A.create significant noisesB.classif