【正文】 able about half the time we need it — during daylight. For the sun to bee a major power provider for human needs, there has to be an efficient way to save it up for use during nighttime and stormy days. Most such efforts have focused on storing and recovering solar energy in the form of electricity, but the new finding, by MlI professor Jeffrey Grossman, Postdoc David Zhitomirsky and graduate student Eugene Cho, could provide a highly efficient method for storing the sun39。s energy through a chemical reaction and releasing it later as heat. The key to enabling longterm, stable storage of solar heat, the team said, is to store it in the form of a chemical change rather than storing the heat itself. But heat will disappear over time no matter how good the material around it is, so the team set up a chemical storage system that can keep the energy in a stable molecular configuration. When exposed to sunlight, the molecules can stay that way for long periods Then, when triggered (觸發(fā))by a very specific temperature or something else, the molecules return to their original shape , giving off heat in the process. Such chemicallybased storage materials, known as Solar Thermal Fuels(STF), have been developed before. But those earlier efforts were designed to be used in liquid solutions and not able to make durable (耐用的) solidstate films. The new approach is the first based on a solidstate material, in this case a polymer, and the first based on inexpensive materials and widespread production technology.（1）What is the main purpose of Paragraph 1? show the main idea of the passage. practice readers39。 imagination. interest readers in the passage. introduce a new kind of material.（2）According to the passage, what can the polymer film do? can be made into window glass. can make necessary electricity. can store energy and release sunshine. can absorb sunshine and give off heat.（3）According to the passage, what is STF based on? chemical reaction. movement of heat. form of electricity. physical reaction.（4）What is the advantage of the molecular configuration? is less expensive. is very powerful. is easily available. is less changeable.【答案】 （1）C（2）D（3）A（4）D 【解析】【分析】本文是一篇說明文，介紹了一種新型材料，它可以通過自身吸熱并儲存熱量，之后能夠根據(jù)需要釋放熱。 （1）考查推理判斷。根據(jù)第一段“Imagine your clothing could release enough heat to keep you warm and cozy, allowing you to stay fortable in a cooler room. Or, picture a car windshield that stores the sun39。s energy and then releases it as heat to make the ice on the windshield disappear. ”想象一下你的衣服可以釋放足夠的熱量讓你溫暖和舒適，讓你可以在冰冷的房間里保持舒適?；蛘?，再想象一下車的擋風玻璃可以儲存太陽的能量，然后釋放熱量使擋風玻璃上的冰消失)可推測，本段以衣服和騎車擋風玻璃為例，提到了如果衣服能夠吸熱和放熱、汽車的擋風玻璃能夠吸熱和自動除冰那該是多么好的事，以此來吸引對著對本文的興趣。故選C。 （2）考查細節(jié)理解。根據(jù)第二段中的“thanks to a new material that can store solar energy during the day and release it later as heat. This transparent polymer film could be applied to many different surfaces, such as window glass or clothing. ”多虧了這種能在白天吸熱之后以熱能形式釋放的新型材料，這個透明的聚合物膜可以應用于許多不同的表面，如窗戶玻璃或服裝)可知，這種聚合物膜可以吸熱，此后再以熱能的形式釋放出來。故選D。 （3）考查細節(jié)理解。根據(jù)最后一段中的“Such chemicallybased storage materials, known as Solar Thermal Fuels(STF), have been developed before. ”這種以化學反應為基礎的儲存材料，即太陽能熱燃料(STF)，以前就已經(jīng)被開發(fā)出來了，可知，STF是以化學反應為基礎。故選A。 （4）考查推理判斷。根據(jù)第四段中的“But heat will disappear over time no matter how good the material around it is, so the team set up a chemical storage system that can keep the energy in a stable molecular configuration. ”但是熱量會隨著時間的推移而消失，不管周圍的物質有多好，所以研究小組建立了一個化學儲存系統(tǒng)，可以將能量保持在一個穩(wěn)定的分子結構中)可推斷，這種分子結構的優(yōu)勢是相對穩(wěn)定。故選D。 【點評】本題考點涉及細節(jié)理解和推理判斷兩個題型的考查，是一篇科普類閱讀，考生需要準確捕捉細節(jié)信息，并根據(jù)上下文進行邏輯推理，從而選出正確答案。8．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