【正文】 60。B.Ocean Warming Affects Food WebC.The Survivability of Ocean AnimalsD.The Ocean Is Running Out of Breath【答案】 （1）A（2）C（3）A（4）D 【解析】【分析】本文是一篇說(shuō)明文，介紹了海洋氧含量下降是一個(gè)與氣候變化有關(guān)的令人擔(dān)憂的趨勢(shì)。同時(shí)介紹了海洋氧含量下降的原因以及對(duì)海洋生物的影響和對(duì)其生存的威脅。 （1）考查細(xì)節(jié)理解。根據(jù)第二段中的It is no surprise to scientists that warming oceans are losing oxygen, but the scale of the drop calls for urgent attention. Oxygen levels in some tropical (熱帶的) regions have dropped by an astonishing 40 percent in the last 50 years, some recent studies reveal. Levels have dropped less significantly elsewhere, with an average loss of 2 percent globally.可知，對(duì)于科學(xué)家來(lái)說(shuō)，變暖的海洋正在失去氧氣并不奇怪，但這種下降的規(guī)模需要緊急關(guān)注。一些最近的研究表明，在過(guò)去的50年里，一些熱帶地區(qū)的氧氣含量下降了驚人的40%。其他地區(qū)的降幅較小，全球平均降幅為2%。所以根據(jù)前兩段，科學(xué)家最擔(dān)心的是變暖的海洋中日益惡化的脫氧現(xiàn)象。故選A。 （2）考查細(xì)節(jié)理解。根據(jù)第三段中的 as polar sea ice melts, it forms a layer of water above colder, more salty sea waters. This process creates a sort of lid that can keep currents from mixing surface water down to deeper depths. And because all oxygen enters the surface, less mixing means less of it at depth.可知，當(dāng)極地海冰融化時(shí)，它會(huì)在更冷、更咸的海水上形成一層水。這個(gè)過(guò)程會(huì)形成一種冰蓋，它可以防止水流將地表水混合到海洋更深的深度。因?yàn)樗械难鯕舛歼M(jìn)入了表面，所以較少的與海洋水的混合意味著更深的海洋含氧量更少。所以表面的極地冰水阻止氧氣下沉是海洋缺氧的原因之一。故選C。 （3）考查推理判斷。根據(jù)倒數(shù)第二段中的Ocean animals large and small, however, respond to even slight changes in oxygen by seeking refuge in higher oxygen zones or by adjusting behavior, Oschlies and others in his field have found. These adjustments can expose animals to new predators or force them into foodscarce regions. 可知，然而，Oschlies和他所在領(lǐng)域的其他人發(fā)現(xiàn)，無(wú)論大小，海洋動(dòng)物對(duì)氧氣的微小變化都有反應(yīng)，它們?cè)谳^高的含氧區(qū)尋求庇護(hù)，或是調(diào)整行為。這些調(diào)整可能使動(dòng)物暴露在新的掠食者面前，或迫使它們進(jìn)入食物匱乏的地區(qū)。所以海洋中氧含量減少迫使動(dòng)物離開(kāi)自己的棲息地，去氧氣含量較高的地區(qū)尋求庇護(hù)。故判斷出海洋脫氧改變了一些動(dòng)物的自然領(lǐng)地。故選A。 （4）考查主旨大意。通讀全文可知，短文說(shuō)明了海洋氧含量下降是一個(gè)與氣候變化有關(guān)的令人擔(dān)憂的趨勢(shì)，海洋氧含量下降的原因以及對(duì)海洋生物的影響和對(duì)其生存的威脅。所以短文主要是圍繞著海洋氧含量下降而展開(kāi)的。故短文的最佳標(biāo)題為海洋快喘不過(guò)氣來(lái)了符合題意。故選D。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解，推理判斷和主旨大意三個(gè)題型的考查，是一篇環(huán)保類閱讀，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。7．閱讀理解 NASA has a new job listing, and it39。s no joke. The US space agency is looking for a joker to join their planned mission to Mars. 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. When you39。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. This is probably why NASA wants an astronaut with a sense of humor. These are people that have the ability to pull everyone together, Johnson said. In stressful situations, perhaps humor is a way to know we aren39。t alone. By laughing together, we share our stress. Then we can focus on our jobs instead of just worrying. 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。s team, was a clown. He made people laugh through the whole journey. Amundsen later wrote that Lindstrom was the most valuable member of the team. But if you39。re hoping that your favorite TV edian will fly to Mars, that probably won39。t happen. Being funny won39。t be enough to land somebody the job, Johnson said. They also need to be an excellent engineer. Besides, they must be in top physical condition.（1）What is NASA39。s new job listing? A.A funny engineer.B.A talented clown.C.A good cook.D.A popular edian.（2）What does a confined space in Paragraph 3 refer to? A.a full spaceB.an empty spaceC.an open spaceD.a small space.（3）How does the author think humor can help astronauts? A.It can stop them from feeling bored.B.It can promote teamwork on a mission.C.It can make them feel less homesick.D.It can help them know themselves better.（4）What39。s the author39。s purpose of giving the example of the cook? A.To tell us that what explorers eat on their journey is very important.B.To prove that an amateur can play a more important role than a professional.C.To make the point that humorous people can cheer people up in difficult situations.D.To reveal that a mission to Mars is more difficult than a journey to the South Pole.【答案】 （1）A（2）D（3）B（4）C 【解析】【分析】本文是一篇說(shuō)明文，由美國(guó)宇航局尋找一位幽默的工程師來(lái)和宇航員一起執(zhí)行航天任務(wù)介紹了幽默對(duì)宇航員的重要作用。 （1）考查細(xì)節(jié)理解。根據(jù)倒數(shù)第二段中的“‘Being funny won39。t be enough to land somebody the job,’ Johnson said. ‘They also need to be an excellent engineer.’”可知，美國(guó)宇航局的新工作是幽默的工程師，故選A。 （2）考查詞義猜測(cè)。根據(jù)第三段中的“ such as on a mission to Mars, ”可知，與在地球上生活的寬廣空間不同，在火星任務(wù)中，你需要和其他人一起在狹小的航天器內(nèi)生活很長(zhǎng)一段時(shí)間，由此可知畫線詞詞義為“狹小的空間、有限的空間”，故選D。 （3）考查推理判斷。根據(jù)第四段中的“These are. people that have the ability to pull everyone together,”可知，幽默的人有能力把每個(gè)人都團(tuán)結(jié)在一起，也就是說(shuō)幽默能夠促進(jìn)宇航員在任務(wù)中的團(tuán)隊(duì)合作，故選B。 （4）考查推理判斷。根據(jù)第五段中的“In stressful situations, perhaps humor is a way to know we aren39。t alone. By laughing together, we share our stress.”可知，在壓力大的情況下，幽默是一種減壓的方式，第六段第一句話又說(shuō)有很多團(tuán)隊(duì)小丑的例子，緊接著舉廚師的例子就是為了證明這一點(diǎn)，即：幽默的人能使人在困難的情況下振作起來(lái)，故選C。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解，詞義猜測(cè)和推理判斷三個(gè)題型的考查，是一篇科技類閱讀，考生需要準(zhǔn)確捕捉細(xì)節(jié)信息，同時(shí)根據(jù)上下文的邏輯關(guān)系，進(jìn)行分析，推理，從而選出正確答案。8．閱讀短文，從每題所給的A、B、C和D四個(gè)選項(xiàng)中，選出最佳選項(xiàng)。 The world39。s insects are going down the path of extinction, threatening a catastrophic collapse of nature39。s ecosystems, according to the first global scientific review. More than 40％of insect species are declining and third are endangered, the analysis found. The rate of extinction is eight times faster than that of mammals, birds and reptiles. It should be of huge concern to all of us, for insects are at the heart of every food web. They pollin