A．some modern drivers are not good at driving

　　B．road politeness is good sense as well as good manners

　　C．a friendly driver should nod or wave thanks in answer to an act of politeness

　　D．it is also right to have a tiger in the driver's seat

　　5．It is not always right for drivers to________．

　　A．master roadmanship

　　B．recognize politeness when they see it

　　C．give a friendly nod in answer to an act of politeness

　　D．encourage old ladies to cross the road whenever and wherever they want

　　【参考答案】1---5 BAADD

　　【由安徽省合肥市2017高考模拟题改编】

　　阅读下列短文, 从给的四个选项 (A、B、C和D) 中, 选出最佳选项。

　　Scientists in UK have grown a living human "brain". The team at Aston University created tiny bunch of cells which act like a mini nervous system.

　　They believe it could help find a cure for worse mental conditions like Parkinson’s disease. Professor Michael Coleman is leading the research program. He explained, "We are aiming to be able to study the human brain at the most basic level, using an actual living human cell system. Cells have to be alive and operating efficiently to enable us to really understand how the brain works. "The experiment involves changing cells from a cancer tumour (肿瘤）and making them behave like brain cells.

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