【正文】 本文是一篇說明文，畢克筆的筆帽上有一個小孔是為了防止那些粗心的使用者不小心吞下而窒息死亡。B.Narrow.（3）Why were the writing tests on pens carried out? A. s website, under their FAQs (frequently asked questions), it quite clearly states: The reason that some BIC174。t flat. Nope, your hair and nails don39。由此推斷接下來一段會談?wù)?為什么鳥類不受彩虹色昆蟲的影響，故選C。up isn39。B.Which camouflage theory applies more to birds.（4）Which of the following might serve as the best title of the passage? A.catch sight of more colorful preys（2）From the study in the last paragraph, we can learn that ________. A.. And this sounds like a pletely unreasonable thing to say, because how can colors that are both brilliant and changeable contribute to animal39?？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。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。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。By processing it into a cream.（3）What can we infer about the genetic engineering process? A. 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. （5）考查細(xì)節(jié)理解。故選A。 （1）考查推理判斷。It is harder for the children to secure a satisfying job.D.D.cause Parents on the whole were more uncertain, expressing concern about the likely duration of the arrangement and how to manage it. But they acknowledged that things were different for graduates today, who leave university with huge debts and fewer job opportunities. The findings contradict research published earlier this year showing that returning adult children trigger a significant decline in their parents39。 【點(diǎn)評】本題考點(diǎn)涉及細(xì)節(jié)理解，推理判斷和主旨大意三個題型的考查，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(shí)根據(jù)上下文進(jìn)行邏輯推理，概括歸納，從而選出正確答案。 （3）考查推理判斷。The Function of the Brain【答案】 （1）A（2）B（3）B（4）C 【解析】【分析】本文是一篇說明文，介紹了為什么老年人會覺得時(shí)間過得較快，主要原因是隨著年齡的增長，大腦中神經(jīng)元的變化讓老年人的大腦需要更多的時(shí)間來處理接收到的信息，這樣就會讓他們覺得時(shí)間過得較快。Less experience.（3）Why do the days seem longer earlier in life? A.More images.Aging brains.Longer days. Why does time seem to fly by faster as we get old? You39。 （4）考查主旨大意。根據(jù)第一段中的“As increasing numbers of machines, equipped with the latest artificial intelligence, take on a growing variety of specialized and everyday tasks, the question of how people see them and behave towards them bees ever more urgent.”可知，隨著越來越多的機(jī)器裝備了最新的人工智能，承擔(dān)著越來越多的專業(yè)和日常任務(wù)，人們?nèi)绾慰创鼈円约叭绾螌Υ鼈兊膯栴}變得越來越緊迫。Humanizing robots too much may be improper.C.How to use them effectively.D. （4）考查推理判斷。People should take a positive attitude to new technology.【答案】 （1）C（2）C（3）A（4）B 【解析】【分析】本文是一篇說明文，介紹一種水上無人機(jī)可以用于清理浮在水面上的垃圾。Swallow it.Avoid crashing into it.It can frighten sharks away.B. Our drones are designed to move through a water system, whether it39。 A shark moving around the coastline is normally a worrying sight，but this waterborne drone (無人機(jī)) threatens floating rubbish instead of people.s attitudes towards littering.（1）What do we know about the WasteShark? A.The importance of ocean protection.（3）What will the WasteShark do with an approaching object? A.C.The production cost of WasteSharks should be reduced.D.根據(jù)第五段中的Fitted with a collisionavoidance system, the drone uses laser imaging detection and ranging technology to detect an object in its path and stop or back up if the object approaches.可知，配備防碰撞系統(tǒng)，無人機(jī)使用激光來探測物體，用測距技術(shù)來探測前方是否有物體，如果探測到物體，無人機(jī)就會停下來或者后退，故選A。 According to Sari Nijssen, the study set out to answer the following question: Under what circumstances would adults be willing to sacrifice robots to save human lives? The participants were faced with a hypothetical (假設(shè)的) moral dilemma: Would they be prepared to put a single person at risk in order to save a group of injured persons? In the situations presented the intended victim was either a human, a humanoid robot that had been humanized (人性化的) to various degrees or a robot that was clearly recognizable as a machine.How to treat them in life.C.Humanized robots offer less help to people.B. （1）考查細(xì)節(jié)理解。故選B。Rapid fire abilities.（2）What is unavoidable in the process of getting old? A.B.C.D.The Older, the FasterD.故選B。C項(xiàng)正好與主旨句呼應(yīng)，故選C。Boomerang children never did any housework.（2）The underlined word trigger in Paragraph 2 may be best replaced by ________. A.The parents are willing to provide support to their children.C.父母和孩子對于獨(dú)立的緊張情緒會導(dǎo)致父母和子女之間偶爾的爭吵。即可推理劃線部分單詞trigger意為“導(dǎo)致，致使”，與cause意義一致。由此推斷出，孩子們很難找到一份滿意的工作，故選C。 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.By attaching it to the HIV virus.D.A social webpage.D. （2）考查細(xì)節(jié)理解。 （4）考查推理判斷。s concealment39。live a little longer by escaping their predator(捕食者)D.Why birds are not effected by iridescent insects.D.catching colors could be used as a cover173。實(shí)驗(yàn)?zāi)康氖强纯带B類的視角是否能提供幫助。Some things should just be mon knowledge by now. The Earth isn39。If you jump over to Bic39。D.D.根據(jù)第三段中的In fact, in 2018, 7,250 kilometers (4,505 miles) of writing tests on such pens were carried out on ballpoint pens, gel pens(中性筆), and rollers to make sure they worked to the highest standard.可知，舉行書寫測試的目的是為了確保筆能夠達(dá)到最高的標(biāo)準(zhǔn)，