问题 选择题

读“经纬线(全球范围)示意图”,阴影与非阴影部分分别为8日和7日,据此完成1~2题。

1.甲地时间为    

A.9时                B.12时             C.21时              D.15时

2.北京时间可能为

A.1月7日4时        B.1月8日11时     C.7月7日11时      D.7月8日4时

答案

1.C  2.B

根据日期变更规律得知,日期分界线是1800经线和地方时为O时(24时)的经线。因为阴影部分表示8日,非阴影部分为7日,根据地球自转方向可以确定甲左侧经线为1800经线,右侧是地方时为0时(24时)的经线。第14题,根据经线之间的距离可以看出甲所在经线与O时(24时)经线之间相差450,根据地方时的计算即可求得甲地的时间为2l时。第15题,根据以上分析可以算得北京时间(东八区区时)为1月8日11时。

选择题
单项选择题

It is all very well to blame traffic jams, the cost of petrol and the quick pace of modern life, but manners on the roads are becoming horrible. Everybody knows that the nicest men become monsters behind the wheel. It is all very well, again to have a tiger in the bank, but to have one in the driver’s seat is another matter altogether. You might tolerate the rude and inconsiderate driver, but nowadays the well-mannered motorist is the exception to the rule. Perhaps the situation calls for a "Be Kind to Other Drivers" campaign, otherwise it may get completely out of hand.

Road politeness is not only good manners, but good sense too. It takes the most cool-headed and good-tempered drivers to resist the temptation to revenge then subjected to uncivilized behavior. On the other hand, a little politeness goes a long way towards relieving the tensions of driving. A friendly nod or a wave of acknowledgement in response to an act of politeness helps to create an atmosphere of goodwill and tolerance so necessary in modern traffic conditions. But such acknowledgements of politeness are all too rare today. Many drivers nowadays don’t even seem able to recognize politeness when they see it.

However, improper politeness can also be dangerous. Typical examples are the driver who brakes violently to allow a car to emerge from a side street at some hazard to following traffic, when a few seconds later the road would be clear anyway; or the man who waves a child across a zebra crossing into the path of oncoming vehicles that may be unable to stop in time. The same goes for encouraging old ladies to cross the road wherever and whenever they want to.

A veteran driver, whose manners are faultless, told me it would help if motorists learnt to filter correctly into traffic streams one at a time without causing the total blockages (堵塞) that give rise to bad temper. Unfortunately, modern motorists can’t even learn to drive, let alone be well-mannered on the road. Years ago the experts warned us that the car-ownership explosion would demand a lot more give-and-take from all road users. It is high time for us to take this message to heart.

According to the passage, troubles on the road are primarily caused by ().

A. people’s attitude towards drivers

B. the rhythm of modern life

C. the behavior of the driver

D. traffic conditions