第一节：单项填空(共15小题；每小题1分，满分15分)

　　从每题所给的A、B、C、D四个选项中，选出可以填入空白处的最佳选项。

　　1．Although this area is very poor at present, its ________ wealth is great.

　　A．fundamental　　　　　　 B．potential

　　C．previous D．widespread

　　解析：选B　句意：尽管这个地区目前很穷，但其潜在财富巨大。potential"潜在的"，符合句意。fundamental"基本的"；previous"先前的"；widespread"普遍的"。

　　2．Experts believe that a large number of cancer cases in the area are directly ________ to the nuclear power station.

　　A．referred B．devoted

　　C．contributed D．related

　　解析：选D　句意：专家认为，那个地区大量癌症病例和那座核电站有着直接关系。be related to"与......有关"；refer to"涉及，参考"；devote ... to"专心于"；contribute to"有助于"。

　　3．Happy birthday, Alice! So you have ________ twenty­one already.

　　A．become B．turned

　　C．grown D．passed

　　解析：选B　表示多少岁时，连系动词只能用turn。故选B项。

　　4．The world's second largest economy will continue to improve its people's well­being and ensure that the ______ of development are shared by all.

　　A．benefits B．advantages

　　C．principles D．arrangements

　　解析：选A　句意：世界第二大经济体将坚持改善民生，确保发展成果惠及全体人民。benefit"好处"，符合句意。advantage"优势"；principle"原则"；arrangement"安排"。

　　5．________ for old men to read newspapers, but it is also a great way to improve their minds.

　　A．Not only for pleasure is it

　　B．Not only it is for pleasure

　　C．Not only is it for pleasure

D．It is not only for pleasure