高中英语外研版 (2019)选择性必修 第三册Unit 4 A glimpse of the future图文课件ppt

这是一份高中英语外研版 (2019)选择性必修 第三册Unit 4 A glimpse of the future图文课件ppt，共8页。

Preparing cities fr rbt cars The pssibility f self-driving rbt cars has ften seemed like a futurist’s dream, years away frm materializing in the real wrld. Well, the future is apparent nw. The Califrnia Department f Mtr Vehicles began giving permits in April t cmpanies t test truly self-driving cars n public rads. The state als cleared the way fr cmpanies t sell r rent ut self-driving cars, and fr cmpanies t perate driverless taxi services.
Califrnia, it shuld be nted, isn’t leading the way here. Cmpanies have been testing their vehicles in cities acrss the cuntry. It’s hard t predict when driverless cars will be everywhere n ur rads. But hwever lng it takes, the technlgy has the ptential t change ur transprtatin systems and ur cities, fr better r fr wrse, depending n hw the transfrmatin is regulated. While much f the debate s far has been fcused n the safety f driverless cars (and rightfully s),
plicymakers als shuld be talking abut hw self-driving vehicles can help reduce traffic jams, cut emissins(排放物) and ffer mre cnvenient, affrdable mbility ptins. The arrival f driverless vehicles is a chance t make sure that thse vehicles are envirnmentally friendly and mre shared. D we want t cpy-r even wrse-the traffic f tday with driverless cars? Imagine a future where mst adults wn individual self-driving vehicles. They tlerate lng, slw jurneys t and frm wrk n packed highways because they can wrk,
entertain themselves r sleep n the ride, which encurages urban spread. They take their driverless car t an appintment and set the empty vehicle t circle the building t avid paying fr parking. Instead f walking a few blcks t pick up a child r the dry cleaning, they send the self-driving minibus. The cnvenience even leads fewer peple t take public transprt-an unwelcme side effect researchers have already fund in ride-hailing(叫车) services.
A study frm the University f Califrnia at Davis suggested that replacing petrl-pwered private cars wrldwide with electric, self-driving and shared systems culd reduce carbn emissins frm transprtatin 80% and cut the cst f transprtatin infrastructure(基础设施)and peratins 40% by 2050. Fewer emissins and cheaper travel sund pretty appealing. The first cmmercially available driverless cars will almst certainly be fielded by ride-hailing services, cnsidering the cst f self-driving technlgy as well as liability and maintenance issues(责任与维护问题).
But driverless car wnership culd increase as the prices drp and mre peple becme cmfrtable with the technlgy. Plicymakers shuld start thinking nw abut hw t make sure the appearance f driverless vehicles desn’t extend the wrst aspects f the car-cntrlled transprtatin system we have tday. The cming technlgical advancement presents a chance fr cities and states t develp transprtatin systems designed t mve mre peple. The car f the future is cming. We just have t plan fr it.