【文章內容簡介】 ld39。s First Digital Teacher, a Help to StudentsD.New Zealand Will Replace Teachers in Classrooms【答案】 （1）A（2）D（3）D（4）B 【解析】【分析】本文是一篇說明文，介紹了一款智能機器人走進小學課堂，為孩子們講授能源可持續(xù)發(fā)展。 （1）考查細節(jié)理解。根據第一段中的“They became the world39。s first kids to be “taught” by a digital teacher”可知，他們成為世界上第一批由智能機器人老師“教”的孩子。由此可知，特殊之處在于機器人老師教他們。故選A。 （2）考查細節(jié)理解。根據第三段中的“This twoway interaction not only helps attract the students39。 attention, but also allows the program39。s developers to monitor their engagement, and make changes if needed.”即“ 這種雙向互動不僅有助于吸引學生的注意力，還允許程序的開發(fā)人員監(jiān)視他們的參與度，并在需要時做出更改”，由此可得出，其優(yōu)勢在于需要時，可以做出變化。故選D。 （3）考查推理判斷。根據最后一段中的“However, regardless of how popular it bees, Will is unlikely to replace human educators any time soon.”可知，Ravishankar認為它不會在短期內代替人類教育工作者。故選D。 （4）考查主旨大意。根據第一段中的“While the start of a new school year is always exciting, this year was even more so for some elementary school students in Auckland, New Zealand. They became the world39。s first kids to be “taught” by a digital teacher”可知，從新學年開始，新西蘭奧克蘭的小學生將成為世界上第一批被機器人老師教的孩子。之后文章就此展開，由此可推斷出he World39。s First Digital Teacher Appears in Classroom最符合本文的標題。故選B。 【點評】本題考點涉及細節(jié)理解，推理判斷和主旨大意三個題型的考查，是一篇科教類閱讀，要求考生在捕捉細節(jié)信息的基礎上，進一步根據上下文的邏輯關系，進行分析，推理，概括和歸納，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，介紹了科學家培育出可預防艾滋病病毒感染的轉基因水稻。研究人員表示，這一“突破性”的發(fā)現是“現在唯一的”以低成本為發(fā)展中國家生產抗艾滋病毒聯合治療的方法，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有了進展減緩了疾病的發(fā)展，但現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，科學研究小組認為要進一步的測試，以確保基因工程過程不會產生任何可能對人類有害的額外化學物質。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?？v觀全文可知，本文介紹了最近的一項研究，一種新的轉基因水稻可以預防艾滋病病毒的感染。因此與人類的健康有關，所以本文可能是出現在健康雜志上，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，考生需要準確捕捉細節(jié)信息，同時根據上下文進行邏輯推理，從而選出正確答案。5．閱讀理解 Experts note that an unhealthy lifestyle can put you at great risk of heart disease and stroke. So doctors urge us to eat healthy foods, get exercise, stop smoking and limit our alcohol intake. But there is something else you can do. And it is free and easy. Smile! Dr. Chockalingam, a heart disease specialist in Columbia, advises his patients to smile. He says a smile may be one way to help your heart. When we smile, the brain wiring changes. The chemicals that are released are more positive. He says smiling is the first step in fighting physical and emotional stress and its sometimes harmful effects on human health. This is not just New Age advice. Several studies support his opinion. When you feel stressed or under pressure, your body releases many natural hormones (荷爾蒙) including adrenaline and cortisol. Adrenaline increases your heart rate and blood pressure. Cortisol is the body39。s main stress hormone. It increases sugar in the bloodstream. If you are truly in danger, these hormones can help you. They are part of what we call our fightorflight response. However, when we are stressed for a long period, these stress hormones are e