【正文】 , or even water, at full flight speed would be quite dangerous. Before touching down, they must decrease their speed in order to land safely. Both bats and birds have mastered the skill of landing, but these two types of flyers go about it quite differently. 【點評】本題考點涉及細節(jié)理解題型的考查，是一篇科研類閱讀，考生需要準確掌握細節(jié)信息，并結(jié)合題目要求，從而選出正確答案。根據(jù)第三段中的“As a cover for the experiment, all participants were told this snack was to be consumed before the game began.”作為實驗的掩護，所有受試者都得告在游戲開始前就要吃完這些零食?？芍xC。然而，他們還推斷，這種方式可能會導(dǎo)致人們更加了解他人的需求，從而推動合作性的行為。根據(jù)第二段中的“However, they also reasoned that it could instead lead people to bee more aware of others39?？芍猣amilystyle指的是與別人一起用餐，故選B。 needs and drive cooperative behavior as a result.”他們形成了一套理論，認為一方面，與他人一起吃飯可能表明糧食短缺，并加強了競爭的概念。 （1）考查細節(jié)理解。To avoid the distraction during the game.【答案】 （1）B（2）C（3）C 【解析】【分析】本文是一篇說明文，介紹了外交宴席的心理學(xué)To hide the intention of the experiment.B.To find out whether sharing food can get people close emotionally.（3）Why were participants asked to eat up the snack before the game? A.To prove sharing food increases petition.C.A meal taken in a family atmosphere.（2）For what purpose did the researchers carry out the present experiments? A.A meal consumed by oneself.B.A meal taken at home. The researchers measured cooperation by noting the number of rounds it took to reach an agreement, and found that those who shared food resolved the strike significantly faster（in 8. 7rounds）than those who did not（ rounds）. A similar experiment was conducted with 104participants and Goldfish crackers（餅干）, this time negotiating an airline39。 For the first test they recruited 100 pairs of participants from a local cafe, none of whom knew each other. The participants were seated at a table and fed tortilla chips with salsa. Half the pairs were given their own basket of 20 grams of chips and a bowl of 25 grams of salsa, and half were given 40 grams of chips and 50 grams of salsa to share. As a cover for the experiment, all participants were told this snack was to be consumed before the game began. Having conducted previous research in 2017 revealing that eating similar foods led to people feeling emotionally closer to one another, Dr Woolley and Dr Fishbach wondered whether the way in which food was served also had a psychological effect. They theorized that, on the one hand, sharing food with other people might indicate food scarcity（短缺）and increase a feeling of petition. However, they also reasoned that it could instead lead people to bee more aware of others39。5．犇犇閱讀理解 s where water es in.”可知，水既能反射藍光，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 （獨有的）red and orange, but there39。故選C。 （2）考查細節(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)生龍卷風的云層所獨有的，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 text? A.C.Red light.Because red light is weaker than blue light.（3）What does the underlined word it in paragraph 2 refer to? A.Because there is more blue light than light of other colors.C.Green Skies Are Unique to Clouds（2）Why are the skies blue in the daytime? A.Do Green Skies Mean a Coming TornadoC.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. 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 where water es in.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 （獨有的）red and orange, but 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. In areas like the Central United States that get lots of tornadoes, there39。 【點評】本題考點涉及細節(jié)理解，詞義猜測，推理判斷和主旨大意四個題型的考查，是一篇科教類閱讀，要求考生在捕捉細節(jié)信息的基礎(chǔ)上，進一步根據(jù)上下文的邏輯關(guān)系，進行分析，推理，概括和歸納，從而選出正確答案。因此，本文的最佳標題應(yīng)為“若何保護動物脫險的建議”。 （4）考查主旨大意。結(jié)合四個選項可知，此處用Making one heartbroken（心碎）最合句意。根據(jù)上文大家對干涉動物的行為有不同觀點，再結(jié)合下文的“you stay out of the way. Even when you39。t bothering, right? viewer Kathryn Shaw said on her Facebook.”可知，她對幫助動物是很贊成的，故選A。根據(jù)第三段中的“I39。故選B。 （1）考查細節(jié)理解。s various remarks on penguins. rescue of penguins from a gully. penguins39。s no rule book in those situations. You can only respond to the facts that are right there in front of you, Will Lawson, the show39。re watching a male polar bear eat a baby bear. Such cases are familiar to Paul Nicklen, wildlife photographer for National Geographic. He told Metro, If it39。 In this case, however, Mike Gunton, the executive producer of the series, said that this was a oneoff situation. There were no animals going to suffer by interfering. You weren39。t have sunshine throughout your life. To have done anything else would only make matters worse, said the show39。t bothering, right? viewer Kathryn Shaw said on her Facebook. The case has taken the international media by storm. Viewers watching this film let out a sigh of relief. I39。 When we see a person in trouble, the first idea that es to our mind is to lend a hand. But what if we see an animal in trouble, does the same rule apply?3．犇犇閱讀下面文章，然后從題中所給的A、B、C、D四個選項中，選出每個問題的最佳選項。故選B。 （4）考查主旨大意。根據(jù)倒數(shù)第三段中的“had better attention and shortterm memory ”可知，Stephen Kaplan的研究發(fā)現(xiàn)親近大自然可以提高注意力和短期記憶力，也就是說提