7.Researchers have developed new software using smart phones'GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects.The software could eventually allow smart phone armed soldiers to target the location of their enemies.On the home front,the software could be used by everyone,including golfers judging distance to the green and biologists documenting the location of a rare animal without disturbing it.
"The great advantage of a smart phone is that it provides so many tools in a single,readily available,relatively inexpensive package,"said Qia Wang,a doctoral student who led the development of the software."For example,on the battlefield,a soldier needs a rangefinder(測距儀),compass,GPS and other tools to get information before calling in an air strike.With our software,the soldier can have all those instruments in one device that can be purchased off the shelf.When that soldier returns from war,she can use the same software to protect her family by clocking a speeder near her children's school and catching the criminal on video."Wang and his colleagues developed their software to locate and track:
Targets of known size-When the size of the target is known,a single image is enough to pinpoint(確定) the target's location.
Targets of unknown size-If the exact size of a target is unknown,the software uses two images to triangulate(三角測量) the location of the target.
Moving targets-By taking a short video of a moving target,the smart phone software can calculate how fast the target is moving and in what direction it is going.
"Currently,our software is limited by the physical abilities of smart phone hardware,but the devices are improving rapidly,"Wang said."We expect that improvements in GPS accuracy,battery life and camera resolution(分辨率) will allow our software to make even more accurate observations."
62.From Paragraph l we can know that the new software canD.
A.help biologists protect rare animals
B.determine the speed of moving objects
C.defend soldiers against their enemies
D.locate objects in the distance exactly
63.The example given by Qia Wang is meant toC.
A.make an advertisement
B.describe the software briefly
C.show the benefits of the software
D.present the functions of smart phones
64.How does the software calculate the speed of a moving object?A
A.By taking a short video.
B.By locating its position.
C.By taking a single image.
D.By measuring real-life size.
65.What's Qia Wang's attitude towards the future of the software?D
A.Casual.
B.Flexible
C.Cautious.
D.Optimistic.
分析 文章第一段講了一款新軟件的誕生和它的功能.第二、三兩段寫了該軟件的優(yōu)越之處.第四段至第六段寫了它的具體工作原理.第七段寫了該軟件正在發(fā)展和它將來會更精確地定位和測速,文章強調(diào)這個軟件可以在手機上運作
解答 62.D細節(jié)題.由第一段第一句"Researchers have developed new software using smart phones'GPS and imaging abilities that determine the exact location of distant objects as well as monitor the speed and direction of moving objects"可知新軟件可以定位遠距離的物體,D項符合題意.故正確答案為D.
63.C推斷題.由第二段第一句"The great advantage of a Smartphone is that it provides so many tools in a single,readily available,relatively inexpensive package,"可知 Qia wang 主要說了該軟件的優(yōu)點.他舉了士兵使用該軟件可以不必費力氣攜帶測距儀、指南針和定位系統(tǒng)的例子,說明了該軟件的強大功能,即它的優(yōu)點,所以C項符合題意.故正確答案為C.
64.A細節(jié)題.由第六段中的"By taking a short video of a moving target,the Smartphone software can calculate how fast the target is moving and in what direction it is going."通過對移動的物體拍攝一段小視頻,只能軟件能夠計算物體的速度,可知正確答案為A.
65.D推斷題.由最后一段第一句"the devices are improving rapidly"可知,這個軟件正在被優(yōu)化;由最后一段最后一句"We expect that improvements in GPS accuracy,battery life and camera resolution will allow our software to make even more accurate observations."可知 Qia Wang 的預(yù)期是該軟件的準(zhǔn)確度會提高,由此可見他對該軟件的態(tài)度是樂觀的,D項符合題意.故正確答案為D.
點評 本文是科教類閱讀理解.做這類題材閱讀理解時要求考生對文章通讀一遍,做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進行仔細分析,結(jié)合選項選出正確答案.推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案,切忌胡亂猜測,一定要做到有理有據(jù)