【正文】 9。Lacking protection.B.Being caught by humans.D.Some people don39。Plastics will turn the ocean into a soup of plastic.C.s time to take measures to deal with plastic waste.D.A biology textbook.A travel brochure.C.A lifestyle magazine.【答案】 （1）D（2）B（3）C（4）C 【解析】【分析】本文是一篇說明文，介紹了塑料垃圾給海洋以及海洋生物帶來的危害。根據(jù)第一段中的“their plastic waste would likely still be around four centuries later. （2）考查細(xì)節(jié)理解。可能有更多的人受到無形的傷害。 （3）考查推理判斷。s a matter of building the necessary institutions and systems, he says, ideally before the ocean turns into a thin soup of plastic.”他說最好在海洋變成塑料湯之前建立一個(gè)必要的機(jī)構(gòu)和制度的問題，可推知選C?？v觀全文可知，本題介紹了塑料垃圾給海洋以及海洋生物帶來的危害。 【點(diǎn)評(píng)】本題考點(diǎn)涉及細(xì)節(jié)理解和推理判斷兩個(gè)題型的考查，是一篇環(huán)保類閱讀，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，從而選出正確答案。 In areas like the Central United States that get lots of tornadoes, there39。t quite as simple as that, but scientists have found that if you see a green sky, you should probably go inside. As far as most scientists can tell, the green skies around powerful thunderstorms are usually a bination of red sunsets and water droplets.s ing from everywhere. Meanwhile, around sunset sunlight travels through so much atmosphere that just about all the blue is bounced away from the horizon, leaving all those reds and oranges behind. The sunset might look exclusively （獨(dú)有的）red and orange, but there39。s where water es in. Still, none of the conditions that can turn skies green are unique to the clouds that produce tornadoes. Sometimes they just lead to lots of rain, and maybe some hail. So if you see huge storm clouds rolling in and a green tint （色調(diào)）in the sky, it doesn39。s about to be a tornado, but it does mean you should probably head indoors.（1）What can be the best title for the text? A.Do Green Skies Mean a Coming TornadoC.Green Skies Are Unique to Clouds（2）Why are the skies blue in the daytime? A.Because there is more blue light than light of other colors.C.Because red light is weaker than blue light.（3）What does the underlined word it in paragraph 2 refer to? A.Red light.C.Water.（4）What can we learn about from the text? A.Water can reflect red light as well as blue light.C.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(shí)它們會(huì)導(dǎo)致大量降雨，甚至冰雹，待在室內(nèi)或許是最好的選擇。通讀全文，根據(jù)第一段中的“there39。 （2）考查細(xì)節(jié)理解。故選C。根據(jù)第二段中的“The sunset might look exclusively （獨(dú)有的）red and orange, but there39。 （4）考查推理判斷。s where water es in.”可知，水既能反射藍(lán)光，也能反射紅光，故選B。7．犇犇Choose the one that fits best according to the information given in the passage you have just read. In the past decade ocean oxygen levels have taken a dive—an alarming trend that is linked to climate change, says Andreas Oschlies, an oceanographer at the Helmholtz Center for Ocean Research in Germany, whose team tracks ocean oxygen levels worldwide. We were surprised by the intensity of the changes we saw, how rapidly oxygen is going down in the ocean and how large the effects on marine ecosystems are, he says. 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. 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. Climate change already poses serious problems for marine life, such as ocean acidification, but deoxygenation is the most pressing issue facing sea animals today, Oschlies says. After all, he says, they all have to breathe.The worsening deoxygenation in the warming ocean.B.The alarmingly changeable oxygen levels in the ocean.D.Polar ice melting consumes much oxygen in the ocean.B.The surface polar ice water prevents oxygen going down.D.Ocean deoxygenation changes some animals39。Ocean acidification is more serious a problem than deoxygenation.C.Some animals reduce their movements in order to absorb more oxygen.（4）Which of the following is the best title of the passage? A.B.The Survivability of Ocean AnimalsD.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。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)家來說，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。其他地區(qū)的降幅較小，全球平均降幅為2%。故選A。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。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。故選C。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。所以海洋中氧含量減少迫使動(dòng)物離開自己的棲息地，去氧氣含量較高的地區(qū)尋求庇護(hù)。故選A。通讀全文可知，短文說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。故短文的最佳標(biāo)題為海洋快喘不過氣來了符合題意。 【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。 In 2015, a man named Nigel Richards memorized 386, 000 words in the entire French Scrabble