题目

下面的句子插入语段中，最恰当的位置是（ ）有一次，他发现了一只全身碧蓝、比樱桃核还要小的甲虫。①法布尔放鸭子的时候，经常一动不动地趴在岸边，观察奇妙的生物世界。②他小心翼翼地把甲虫拾起来，放进一个空蜗牛壳里。③爸爸看见了，怒气冲冲地吼着：“叫你放鸭子，你倒好，只顾自己玩，快把这些玩意儿扔了！”A.①之前 B.①②之间 C.②③之间 D.③之后2、A device that stops drivers from falling asleep at the wheel is about to undergo testing at Department of Transport laboratories and could go on sale within 12 months. The system, called Driver Alert, aims to reduce deadly road accidents by 20% - 40% that are caused by tiredness. Airline pilots can also use it to reduce the 30% of all pilot-error accidents that are related to fatigue. Driver Alert is based on a computerized wristband. The device, worn by drivers or pilots, gives out a sound about every four minutes during a car journey. After each sound the driver must respond by squeezing the steering wheel (方向盘). A sensor in the wristband detects this pressing action and measures the time between the sound the driver’s response. Tiredness is directly related to a driver’s response time. Usually, a watchful driver would take about 400 milliseconds to respond, but once that falls to more than 500 milliseconds, it suggests that the driver is getting sleepy. In such cases the device gives out more regular and louder sounds, showing that the driver should open a window or stop for a rest. If the driver’s response continues to slow down, the sounds become more frequent until a nonstop alarm warns that the driver must stop as soon as possible. The device has been delivered to the department’s laboratories for testing. If these tests, scheduled for six months’ time, are successful, the makers will bring the product to market within about a year. 1.According to the text, Driver Alert ______. A. aims to reduce tiredness-related accidents B. has gone through testing at laboratories C. aims to prevent drivers form sleeping D. has been on sale for 12 months 2.How should a driver respond to the sounds from Driver Alert? A. By sounding a warning.                                  B. By touching the wristband. C. By checking the driving time.                          D. By pressing the steering wheel. 3.We can learn from the text that the driver needs to stop for a break when his response time is ______. A. about 400 milliseconds                                    B. below 500 milliseconds C. over 600 milliseconds                                     D. about 4 minutes 4.When the driver gets sleepy while driving, Driver Alert ______. A. moves more regularly                         B. stops working properly C. opens the window for the driver          D. sounds more frequently and loudly