Section C
Directions: There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.
57、Passage One
Questions57-66are based on the following passage．
Arctic Ocean ice may hold trillions of small piecesof plastic and other synthetic trash，and they are beingreleased into the world’s oceans as global warming melts the polar cap，researchers say，Though the finding is surprisingand worrying，the possible harm to marine life is so farunknown，the authors concluded．calledmicro plastics，the pollutants come mostly from debristhat has broken apart，as well as from cosmetics andfibers released from washing clothes，according to theStudy，which was published in the journal Earth’s Futureand first reported by Science magazine．
At current melting trends more than l trillion pieces 5 millimeters or smaller could wind up in the oceans during the coming decade．the authors estimate．The concentration of plastic debris is 1，000 times greater than that floating in the so．called Great Pacific Garbage Patch．The researchers based theirfindings on core samples of ice taken during polar expeditions in 2005 and 2010．
Rayon was the most common synthetic material discovered—54%．Though rayon is not a plastic（it’s made from wood），the authors included it “because it is a man made semi．synthetic that makes up a significant proportion of syntheticmicroparticles found in the marine environment．”Rayon is used in cigarette filters，clothing and personal hygieneproducts．Polyester（聚酯）was the next most common pollutant found in the ice（21%），followed by nylon（16%），polypropylene（聚丙烯）（3%）and polystyrene，acrylic and polyethylene （2êch）．
The authors called the ice trap “a major historicglobal sink of man．made particulates．”andsaid their findings “go some way to help clarify one of the most puzzlingaspects of current understanding on the quantities of plastic debris reportedin the oceans．”As Science points out，288 million tons of plastics were produced in 2012．
Micro plastics garbage has also been found on the shores of southernmost Chile，so the authors said it’s time toinvestigate the planet’s other polar region．“Whilemultiyear sea ice makes up a smaller proportion of annual sea ice cover in theSouthern Ocean．a(chǎn)nd perennial sea ice cover aroundAntarctica is following different trends，our findingindicate the importance of sampling ice from the Antarctic to see if it too containsmicro plastics，”they write．
注意：此部分試題請?jiān)诖痤}卡2上作答。
According to the passage．what are mainly called “micro plastics”？
A．The pollutants come mostly fromdebris．
B．The pollutants come mostly fromfibers．
C．The pollutants come mostly fromcosmetics．
D．The pollutants come mostly fromdaily supplies．


58、 What does the phrase “wind up” meanin Para．2？
A．put an end to
B．screw up
C．sweep across
D．roll up


59、 Why does the author include “rayon”in，though it is not a plastic？
A．Because it is a significantmanmade semi．synthetic discovered in the ocean．
B．Because it is a major naturalsemi-synthetic appearing in the marine．
C．Because it is a minor manmadesynthetic dug out in the marine．
D．Because it is a significant naturalsynthetic explored in the marine．


60、 What can we infer from the icetrap “a major historic global sink of mail-made particulates”？
A．The historic sink should beattributed to man-made particulates．
B．People on a worldwide scale havereaped what they had sown．
C．The ice trap is of major historicmeaning on the global context．
D．The major historic global sink isderived from the ice melting．


61、 What’s the best title of thispassage？
A．Rayon was the most commonsynthetic in the ocean．
B．It’s time to research theplanet’s other polar region．
C．Trillions of plastic pieces foundin the Arctic ice．
D．Trillions of plastic pieces willwind up in the ocean．


62、 Passage Two
Questions62-71are based on the following passage．
The Wall Street Journal quoted sources close to thecompany as saying a run of 4．000 devices will be manufacturednext month．The tablet will have two rear-facing camerasand advanced imaging software——and will be shown off at the firm’s forthcomingdevelopers’ conference．Google has said it will not commenton “rumor and speculation”．But in March，Google showed off Project Tango，all effortto bring 3D technology to its handheld devices．Aprototype smart phone had been given out to 200 developers to try out．
The technology makes use of infrared sensors tomeasure depth of surroundings．While the ability to create 3Dimages with small devices is by no means a new technological feat，Google’s strategy will be to harness the hardware to contribute to，among other things，its mapping effort．For instance，the devices could be used tocreate quickly a 3D map of indoor environments．Accordingto the Wall Street Journal，the 3D tablet will be shownof fat Google’s annual developers’ conference at the end of June．
As it did with the Google Glass eyewear product．itis expected the firm will A．low a select number ofdevelopers and engineers to experiment with the technology before a consumerlaunch is planned．a(chǎn)lthough still a relatively minorindustry，the race to create the “killer app” forbuilding and viewing virtual reality environments is building a pace．In March，F(xiàn)acebook swooped in on a$2bn（￡1．2bn） deal for OculusVR，a company making a virtual reality headset．
A mini-site for Project Tango has highlighted a fewof the firm’s plans in the area．“Project Tango is an attempt tocreate a mobile device unlike like any other，”the siteexplains．“A mobile device that shares our sense ofspace and movement，that understands and perceives theworld the same way we do．”
In the past few years，devices able to view andcreate 3D images have made it to market，but suffered heavilyfrom a lack of consumer interest，said Jack Kent，an analyst at IHS．“If Google really pushesit，that might change也e dynamicsof the market。”he told the BBC．
注意：此部分試題請?jiān)诖痤}卡2上作答。
What is the feature of the newtablet？
A．It will have two pre-facing camerasand advanced imaging software．
B．It will have one rear-facingcamera and advanced imaging hardware．
C．It will have two rear-facing camerasand advanced imaging software．
D．It will have one pre-facingcamera and advanced imaging hardware．


63、 What contribution will Google’sstrategy make to its mapping effort？
A．The devices could be used to takea clear photo for indoor environments．
B．111ey can be applied to theaccurate 3D imaging of indoor environments．
C．They can be employed to create aprobable 3D map of indoor environments．
D．They could be utilized to formquickly a 3D map of indoor environments．


64、 Which one is the correspondmeaning of “killer app” in Para．3？
A．the fiercest app．
B．the most useful app．
C．tile most crucial app．
D．the top secret app．


65、 What makes the expected mobiledevice distinctive according to Para．4？
A．It could understand and perceivethe world in its particular way．
B．It call possess the sameperception of our own for the whole world．
C．It could be utilized to share oursense of the world．
D．It can share our sense of space andmovement and perceive the world as we do．


66、 How does the author think of theprospect of devices able to create 3D images？
A．These devices will probably havea bright future．
B．They、wouldbe always in a lack of consumer interest．
C．They may be in a way shut out of themarket．
D．They could suffer from a bleakfuture in all the products．

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