英語四級聽力真題對備考四級的重要性不言而喻，聽力在四級考試中的占比不小，同學(xué)們還需努力，盡量少丟分。以下是小編整理的關(guān)于2021年6月英語四級聽力真題(含音頻) 短文(2)的資料，希望對備考四級的同學(xué)們有所幫助！
A pair of entrepreneurs are planning to build and launch a spacecraft that would carry and roast coffee beans in outer space. The craft will use the heat of re-entry to roast coffee beans, as they float inside it in a pressurized tank. The effect would be to roast the beans all over and produce perfect coffee. The businessmen say that on earth, beans can easily break apart and get burned in the roaster. But if gravity is removed, the beans float around and in a heated oven, receive 360 degrees of evenly distributed heat and roast to near perfection. The spacecraft will reach a height of around 200 kilometers. The beans would then be roasted and the heat generated by the crafts 20 minute re-entry into earth's atmosphere. Temperatures and the pressurized tank will be kept to around 200 degrees Celsius. Once back on earth, the planet's first space roasted beans would be used to make coffee that would be sold for the first time in Dubai. This is where the pair's company is based. It is not clear how much they would charge for a cup. Surprisingly, the Space Roaster concept-should it go ahead-will not be the first attempt to take coffee into space. In 2015, two Italian companies collaborated on the construction of a similar type of spacecraft, which was the first coffee machine designed for use in space.
兩位企業(yè)家正計(jì)劃建造并發(fā)射一艘宇宙飛船，將咖啡豆送入太空并在太空烘烤。這艘飛船將利用重返大氣層的熱量來烘烤漂浮在加壓水箱中的咖啡豆。這樣做會(huì)均勻烘烤咖啡豆，從而生產(chǎn)出完美的咖啡。這兩名商人表示，在地球上，咖啡很容易破碎，在烤箱里被燒焦。但如果去掉重力，咖啡豆就會(huì)漂浮在加熱的烤箱里，接受360度均勻分布的熱量，烤得近乎完美。宇宙飛船將達(dá)到200公里左右的高度。之后這些咖啡豆將被烘烤，飛船產(chǎn)生的熱量將在20分鐘后返回地球大氣層。溫度和加壓水箱將保持在200攝氏度左右。一旦返回地球，地球上首顆太空烤制的咖啡豆將被用來制作咖啡，這將在迪拜首次出售。那里是二人公司的所在地。目前尚不清楚他們準(zhǔn)備一杯咖啡售價(jià)多少。令人驚訝的是，太空烘焙機(jī)這一概念——如果能繼續(xù)進(jìn)行——那將不會(huì)是第一次嘗試將咖啡帶到太空。2015年，兩家意大利公司合作建造了類似類型的太空飛船，這是第一臺為應(yīng)用于太空而設(shè)計(jì)的咖啡機(jī)。
Questions 19 to 21 are based on the passage you have just heard.
請根據(jù)剛才所聽文章回答19至21題。
Q19. What are a pair of entrepreneurs planning to do?
問題19. 兩名企業(yè)家計(jì)劃做什么？
Q20. What does the passage say about coffee beans roasted on earth?
問題20. 關(guān)于在地球上烤的咖啡豆，這篇文章說了什么？
Q21. What did the two Italian companies do in 2015?
問題21. 兩家意大利公司在2015年做了什么？
