1. The building collapsed because its foundation was not strong enough to __________ the weight of the building.
   
    A. subside
   
    B. idealize
   
    C. initiate
   
    D. sustain
   
    2. Some workers in the nuclear power station were exposed to high levels of __________.
   
    A. radiation
   
    B. cancer
   
    C. microwaves
   
    D. high temperature
   
    3. A ___________ refers to an animal that is born from its mother's body, not from an egg, and drinks its mother's milk as a baby.
   
    A. mammoth
   
    B. penguin
   
    C. mosquito
   
    D. mammal
   
    4. The municipal planning commission said that their financial outlook for the next year was optimistic. They expect increased tax___________.
   
    A. privileges
   
    B. efficiency
   
    C. revenues
   
    D. validity
   
    5. The problem of pollution as well as several other issues is going to be discussed when the Congress is in __________ again next spring.
   
    A. convention
   
    B. conference
   
    C. session
   
    D. assembly
   
    1．【答案】D
   
    【解析】四个选项的意思分别是subside"下沉"；idealize"理想化"；initiate"发起"；sustain"支撑，撑住"。句意是：建筑物倒塌是因为它的地基不足以支撑整个建筑物的重量。所以正确答案是D。
   
    2．【答案】A
   
    【解析】A项radiation"辐射，放射线，放射物"；B项cancer"癌症"；C项microwaves"微波"；D项high temperature"高温"。题中讲的是核电站，与之相对应的应该是核辐 射，故本题的答案为A。
   
    3．【答案】D
   
    【解析】A项mammoth"猛犸象，庞然大物"；B项penguin"企鹅"；C项mosquito"蚊子"；D项mammal"哺乳动物"。根据句子中所给的信息：诞生于母体，婴孩时饮用母亲的奶汁，这些都是哺乳动物的特征，本题中所填的词代表这一类动物，所以A不对，B、C两项所提到的动物不具有句子中所表达的物种特征，也不对。故本题的答案为D。
   
    4．【答案】C
   
    【解析】C项revenues"收入，国家的收入，税收"符合题意。其他三项中，A项privileges"特权，特别待遇，基本公民权利"，B项efficiency"效率，功效"，D项、validity"有效性，合法性，正确性"，都与题意不符。本题是说市政计划委员会说他们下一年度的财政前景是乐观的。他们期望提高税收。因此C项为正确答案。
   
    5．【答案】C
   
    【解析】C项session"会议，开庭"符合题意。其他三项中，A项convention"大会，协定，习俗，惯例"，B项conference"会议，讨论会，协商会"，D项assembly"集合，装配，集会，集结，汇编"，都与题意不符。本题是说当明年春天议会再度开会时，污染问题和其他几个问题将被讨论。因此C项为正确答案。

   6.  He told a story about his sister who was in a sad ___________ when she was ill and had no money.
   
    A. plight
   
    B. polarization
   
    C. plague
   
    D. pigment
   
    7.  He added a __________ to his letter by saying that he would arrive before 8 pm.
   
    A. presidency
   
    B. prestige
   
    C. postscript
   
    D. preliminary
   
    8.  This problem should be discussed first, for it takes ___________ over all the other issues.
   
    A. precedence
   
    B. prosperity
   
    C. presumption
   
    D. probability
   
    9.  The ________ of gifted children into accelerated classes will start next week according to their academic performance.
   
    A. segregation
   
    B. specification
   
    C. spectrum
   
    D. subscription
   
    10.  He cut the string and held up the two __________ to tie the box.
   
    A. segments
   
    B. sediments
   
    C.  seizures
   
    D. secretes
   
    6．【答案】A
   
    【解析】A项plight"困境"符合句意，如：He is in a sad plight. (他陷入了悲惨的境地)。其他三项中，B项polarization"分化"，C项plague"瘟疫、天灾"，D项pigment"色素，颜料"，都与句意不相符。本句空格处意为"陷入了悲惨的境地"，因此A项为正确答案。
   
    7．【答案】C
   
    【解析】C项postscript"附言，后记"符合句意，A项presidency"任期"；B项prestige"声望，威望"；D项preliminary"预备的，初步的"，都不正确。本句空格处意为"他在信中又加了附言"，因此C项为正确答案。
   
    8．【答案】A
   
    【解析】A项precedence的意思是"优先、居先"，短语precedence over的意思是"居于……之前"，如：National defense must take precedence over all other questions．(国防应优先考虑)。B项prosperity"繁荣"，C项presumption"假定"，D项probability"可能性"，都与句意不符且不能与take搭配使用。本句空格处意为这个问题应优先考虑。因此A项为正确答案。
   
    9．【答案】A
   
    【解析】A项segregation的意思是"分开，分离"，与句意相符。其他三项中，B项specification"详述，规范"；C项spectrum"光谱，频谱"；D项subscription"捐献，订阅"，都不正确。本句空格处意为"将有天分的儿童分到提高班"，因此A项为正确答案。
   
    10．【答案】A
   
    【解析】A项segment的意思为"段，节"，符合句意。B项sediment"沉淀物"，C项seizure"抓住，夺取"，D项secrete"隐藏"都不正确。本句意为"他把绳子割断，拿两股绳去绑盒子"。因此A项为正确答案。