10.When I got home, it flashed ________ me that I had forgotten to lock the door.
答案:upon 考查固定句型。It flashed upon sb. that...为常用句型,意为“某人突然想到……”
.阅读理解
(2017·临沂市3月质检)
People in several American states may be surprised to see cars on city streets without a driver. Experimental driverless vehicles now are legal in Florida, Nevada and California. They are pointing the way to a future that is not far down the road. The hightech company Google has a number of selfdriving cars, which had covered 480,000 kilometers by August. Volvo is among the companies doing road tests and says it plans to sell driverless cars by 2020.
In September, California Governor Jerry Brown signed an act to allow autonomous vehicles on the roads of his state.
“ Today we're looking at science fiction becoming tomorrow's reality—the driverless car. ” The technology for these cars includes cameras, radar and motion sensors. The systems have been improved through competitions sponsored by the U. S. government agency DARPA. Engineer Richard Mason of the Rand Corporation helped design driverless vehicles for DARPA challenge races.
“Cars have become much more fuelefficient, and new electronic features are making Hondas safer,” said Angie Nucci of Honda America. “ A camera on the passengerside mirror actually engaged on your guiding screen so you can safely change lanes. ” Other safety features include warning systems on the front and the sides of the cars.
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