【正文】 D.It can promote teamwork on a mission.C.a small space.（3）How does the author think humor can help astronauts? A.an open spacean empty spacea full spaceD.C.B.s new job listing? A. t be enough to land somebody the job, Johnson said. They also need to be an excellent engineer. t happen.But if you39。There are other examples of team clowns. One example is the journey to the South Pole led by Norwegian explorer Roald Amundsen. It was a difficult journey full of danger. Adolf Lindstrom, a cook at Amundsen39。 In stressful situations, perhaps humor is a way to know we aren39。 re living with others in a confined space for a long period of time, such as on a mission to Mars, problems are likely to occur, Jeffrey Johnson, a scientist at the University of Florida, told The Guardian. A mission to Mars is no laughing matter. On average, the red planet is 140 million miles (225 million kilometers) away from Earth. A trip there would take around eight months in a small spacecraft. And Mars has a munications delay of 20 minutes. This means that astronauts will have to wait 20 minutes for a reply, when an emergency happens.NASA has a new job listing, and it39。 【點(diǎn)評】本題考點(diǎn)涉及細(xì)節(jié)理解，詞義猜測和主旨大意三個題型的考查，是一篇科研類閱讀，要求考生在捕捉細(xì)節(jié)信息的基礎(chǔ)上，進(jìn)一步根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，概括和歸納，從而選出正確答案。本文主要講述了人類以及其他動物對狼的恐懼對維持健康、平衡的生態(tài)系統(tǒng)是有益的，因為食草動物不會過度繁殖，從而保護(hù)了植物的生長。故選B。根據(jù)最后一段中的“The research is one more piece of evidence for why protecting these top predators is important not just for wolves as a species, but for hundreds of species at every level of an ecosystem.”可知，這項研究再次證明了為什么保護(hù)這些食肉動物不僅對狼這個物種很重要，而且對生態(tài)系統(tǒng)的各個層面的物種都很重要。故選D。 （2）考查細(xì)節(jié)理解。根據(jù)第三段中的We were really surprised at that可知，黃石公園在意想不到的方面從重新引入狼中獲益。The introduction of wolves in Yellowstone National Park is a success.【答案】 （1）A（2）D（3）B（4）A 【解析】【分析】本文是一篇說明文，研究表明人類以及其他動物對狼的恐懼對維持健康、平衡的生態(tài)系統(tǒng)是有益的，其中黃石公園灰狼的引進(jìn)就是一個典型的例子。The fear of wolves put them in danger of disappearing.C.It provides evidence that wolves are endangered animals.（4）What is the main idea of the passage? A.It helps prove the importance of protecting wolves.C.To study what good wolves can do to ecosystems.（3）What is the significance of the research? A.To show how wolves benefit from ecosystems.C.Accept.（2）For what purpose was a documentary made? A.Notice.Understand.Expect. To learn more about just how wolves are beneficial, a short documentary from Quest explains how the presence of wolves influences the behavior of deer, which eventually makes entire ecosystems more biologically diverse and healthy. In this documentary, biologist Aaron Wirsing explored why wolves and other top predators （捕食者）were needed for diverse ecosystems to develop. Using a simple video camera, Wirsing is gaining a unique view point on predatorprey relationships and changing the way we think about wolves.t adopted ecologicalprocess management—allowing natural ecological processes to take place with least human intervention. Yellowstone has benefited from the reintroduction of wolves in ways that we did not anticipate, especially the plexity of biological interactions（互動） in the park, explained Mark Boyce, a professor in the Department of Biological Sciences. We were really surprised at that and we39。 Wolves strike fear into the hearts of many species, humans included. Our fear of them has brought them to the edge of dying out, as we have cruelly killed them as petitors and troublemakers. But researchers are discovering that the very fear they put into prey（被捕食者）species is exactly what helps make ecosystems（生態(tài)）healthy. 【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)確掌握細(xì)節(jié)信息，并根據(jù)上下文進(jìn)行邏輯推理，從而選出正確答案。縱觀全文可知，是一項科學(xué)研究，介紹了如何預(yù)測你的記憶喪失是否是老年癡呆癥,正如所料，老年癡呆癥患者的葡萄糖吸收降低，故選B。 （3）考查細(xì)節(jié)理解。根據(jù)第二段中的“ The fact that you recognize your own forgetfulness may be a very good sign, at least in terms of the possibility of your developing Alzheimer39。但現(xiàn)實(shí)是，有這樣的時候，健忘不再有趣，而且看起來有點(diǎn)可怕，可推知選A。 ”在二十多歲的時候，當(dāng)我們記不起鄰居的貓的名字或是主演一部著名電影的英俊演員時，我們覺得很有趣。s cat39。In our twenties, we find it funny when we can39。 （1）考查推理判斷。D.C.B.Expected increase in brain function.（4）From which is the text probably taken? A.Reduced uptake of glucose.C. forgetfulness.s disease? A.Realizing forgetfulness must be a sign of developing Alzheimer39。t mean developing Alzheimer39。s disease.C.Being aware all the time is a fearful thing.B.It39。Old people are most afraid of getting Alzheimer39。People can be forgetful at different ages.B.s disease is a damaged awareness of illness. And they wanted to prove their theory that the lack of awareness can be used to predict whether someone with mild cognitive（認(rèn)知的）damage will progress to fullon AD. For the study, mild cognitive damage was defined as someone whose mental state was considered healthy but who had either plained of memory loss or had suffered objective memory loss.re forgetful that we should fear.s disease（AD）. The researchers in a new study show that it39。 Well, don39。s name or a handsome actor who starred in a famous movie. In our thirties, we jokingly call it brain freeze. In our forties, we laugh it off as a senior moment and follow up with one of these old age jokes. But the reality is that there es a point when being forgetful stops being funny and starts to seem a bit dreadful. You think, Am I losing it？Or worse, Is this a sign of Alzheimer39。t remember our neighbor39。6．犇犇閱讀理解 s where water es in.”可知，水既能反射藍(lán)光，也能反射紅光，故選B。 （4）考查推理判斷。根據(jù)第二段中的“The sunset might look exclusively （獨(dú)有的）red and orange, but there39。故選C。 （2）考查細(xì)節(jié)理解。通讀全文，根據(jù)第一段中的“there39。If you see a green sky, there will be a tornado.【答案】 （1）B（2）C（3）A（4）B 【解析】【分析】本文是一篇說明文，科學(xué)家發(fā)現(xiàn)天空呈現(xiàn)綠色并不是產(chǎn)生龍卷風(fēng)的云層所獨(dú)有的，有時它們會導(dǎo)致大量降雨，甚至冰雹，待在室內(nèi)或許是最好的選擇。Water can reflect red light as well as blue light.C.Water.（4）What can we learn about from the t