Question

13．HandEnergy is an apple-sized device （設(shè)備） that charges your phone anytime，anywhere．But what really makes this thing special is the fact that it uses your own personal energy to do it．
In a time where power-banks （充電寶） and solar-power devices have become mainstream，a device that lets you charge doesn't sound very special．But while power-banks have to be charged the old fashioned way，and solar-power devices need the sun to store energy，HandEnergy just needs a hand．To get this little guy to produce energy，which it then stores in built-in batteries，all you have to do is hold it in your hand and rotate （旋轉(zhuǎn)） your wrists．
To use HandEnergy，users start by winding a starter ring．This sends a signal to activate the rotor （旋轉(zhuǎn)器），at which point they can start rotating their wrists to keep the rotor spinning．It might sound hard to believe，but the rotor inside HandEnergy spins at an average speed of 5，000 rotations per minute，changing mechanical power into an electric current，and charging the built-in batteries．To charge a device，all you have to do is connect it to HandEnergy using a USB cable．
HandEnergy was successfully crowdfunded on Kickstarter，raising over﹩71，000 m one month，and will be available for the masses in May 2018，at a price of﹩99．One thing is for sure-it beats paying thousands of dollars on a solar-powered charging device．

28．What is HandEnergy used for？B
A．Controling an Apple phone．
B．Providing power．
C．Burning personal energy．
D．Amusing a child．
29．How does HandEnergy produce energy？B
A．By exposing it to the sun．
B．By keeping its rotor spinning．
C．By connecting the power source．
D．By opening and closing your hand．
30．Which of the following is the right order？C
①Users wind a starter ring．②The battery is charged．
③The rotor spins．④Users rotate their wrists．
A．①②③④B．③①②④C．①④③②D．③④①②
31．What can be inferred about HandEnergy from the last paragraph？D
A．It is sort of expensive．
B．It has come into market．
C．It is popular with the public．
D．It may have a bright future．

Answer 1

分析 本文屬于說(shuō)明文閱讀，作者通過(guò)這篇文章主要向我們描述了一個(gè)提供力量的裝置HandEnergy，只需要裝懂手腕就能充電．

解答 28．B．細(xì)節(jié)理解題．根據(jù)第一段HandEnergy is an apple-sized device （設(shè)備） that charges your phone anytime，anywhere．But what really makes this thing special is the fact that it uses your own personal energy to do it可知這是一個(gè)提供力量的裝置；故選B．
29．B．細(xì)節(jié)理解題．根據(jù)第二段To get this little guy to produce energy，which it then stores in built-in batteries，all you have to do is hold it in your hand and rotate （旋轉(zhuǎn)） your wrists可知只要保持它的轉(zhuǎn)子旋轉(zhuǎn)就能獲得能量；故選B．
30．C．細(xì)節(jié)理解題．根據(jù)文章To use HandEnergy，users start by winding a starter ring．This sends a signal to activate the rotor （旋轉(zhuǎn)器），at which point they can start rotating their wrists to keep the rotor spinning．It might sound hard to believe，but the rotor inside HandEnergy spins at an average speed of 5，000 rotations per minute，changing mechanical power into an electric current，and charging the built-in batteries可知使用的順序是用戶使用起動(dòng)機(jī)環(huán)，轉(zhuǎn)動(dòng)手腕，轉(zhuǎn)子旋轉(zhuǎn)，產(chǎn)生電流充電；故選C．
31．D．推理判斷題．根據(jù)最后一段and will be available for the masses in May 2018，at a price of﹩99．One thing is for sure-it beats paying thousands of dollars on a solar-powered charging device可知它可能有光明的未來(lái)；故選D．

點(diǎn)評(píng) 考察學(xué)生的細(xì)節(jié)理解和推理判斷能力，做細(xì)節(jié)理解題時(shí)一定要找到文章中的原句，和題干進(jìn)行比較，再做出正確的選擇．在做推理判斷題不要以個(gè)人的主觀想象代替文章的事實(shí)，要根據(jù)文章事實(shí)進(jìn)行合乎邏輯的推理判斷．