【文章內(nèi)容簡介】 he lieue (former measure of distance), for example, varied from just over 3 km in the north to nearly 6 km in the south”可推知，本段作者主要運用了對比的寫作方法，把同一計量單位在不同國家之間或者在同一國家不同區(qū)域間的差異進行了說明。故選D。 （3）考查細節(jié)理解。根據(jù)第三段中的“it was the French who in 1799 made it law和The Syst232。me International d39。Unit233。s (SI, or the metric system, as it is better known)developed from it and became the official measurement in all countries except Myanmar, Liberia and the United States ”可知，在所給出的四個國家中，只有法國采用國際單位制(SI)。國際單位制是現(xiàn)時世界上最普遍采用的標(biāo)準(zhǔn)度量衡單位系統(tǒng)，采用十進制進位系統(tǒng)。故選A。 （4）考查細節(jié)理解。根據(jù)最后一段中的“At a meeting in Versailles, France, on November 16th, 2018, the world39。s measurement bodies are almost certain to approve a decision that will mean four out of the seven base SI units...will follow the other three...in being redefined in terms of the values of physical constants”可知，在法國凡爾賽宮召開的會議上，七個基本計量單位中的四個將被重新定義，其中包括對千克的重新定義。故選C。 【點評】本題考點涉及細節(jié)理解和推理判斷兩個題型的考查，是一篇科普類閱讀，考生需要準(zhǔn)確捕捉細節(jié)信息，同時根據(jù)上下文進行邏輯推理，從而選出正確答案。4．犇犇閱讀理解 According to a recent study, a new genetically modified rice can prevent infections of HIV, the virus responsible for the disease AIDS. The study reports the newlydeveloped rice produces proteins that attach directly 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。分析選項可知A項符合題意， 故選A。 （2）考查細節(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)為要進一步的測試，以確?；蚬こ踢^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一步的完善。故選C。 （4）考查推理判斷。縱觀全文可知，本文介紹了最近的一項研究，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。 【點評】本題考點涉及細節(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)確捕捉細節(jié)信息，同時根據(jù)上下文進行邏輯推理，從而選出正確答案。5．犇犇Choose the one that fits best according to the information given in the passage you have read. Stocky, slowmoving whale, rarely grows beyond 15 metres in length Flippers are a third of body length。 variable dorsal fin size and shape。 sawtoothed trailing edge on flukes, often raised when diving Bumpy tubercles on top of head Body colour is dark brown to black。 often extensive white on flippers and underside of body and flukes。 such patterns enable individual recognition Bushy blow, occasionally Vshaped 270400 olive baleen plates Humpback whales belong to the rorqual (groovethroated) family, which includes fin, sei, Bryde39。s, minke and blue whales. The big family migrate between winter tropical breeding areas (North West Shelf, Great Barrier Reef, New Caledonia, Vanuatu, Fiii, Tonga) and summer Antarctic feeding areas. Once mon in New Zealand waters, humpbacks are now rarely seen and may migrate further offshore. Males pete for mates either by physical fight or by song. Females give birth to their young every two to three years。 some nonbreeding females probably remain in the southern waters during winter. Young humpback whales return to their area of birth but in later life some wander between breeding areas. Humpbacks eat small shrimps and other schooling prey, such as fish, forming small, cooperative groups of two to three individuals to feed. Similar species: Easily identifiable due to a 39。hump39。 back when submerging, but at a distance may be confused with other species that raise their flukes when diving, such as sperm, right and blu