1. I am sure I can _________ him into letting us stay in the hotel for the night.
   
    A. speak
   
    B. say
   
    C. talk
   
    D. tell
   
    2. Last year, the crime rate in Chicago has sharply ___________.
   
    A. declined
   
    B. lessened
   
    C. descended
   
    D. slipped
   
    3. Passing the English exam should _________ your chances of getting the post.
   
    A. magnify
   
    B. strengthen
   
    C. enlarge
   
    D. enhance
   
    4. He is too young to be able to _________ between right and wrong.
   
    A. discard
   
    B. discern
   
    C. disperse
   
    D. disregard
   
    5. The chairman of the board _________ on me the unpleasant job of dismissing good workers the firm can no longer afford to employ.
   
    A. compelled
   
    B. posed
   
    C. pressed
   
    D. tempted
   
    1．【答案】C
   
    【解析】四项选择都有"说"的意思，但只有talk sb．into表示"说服……做……"，如：He talked me into coming here．他说服我来这儿。其余三项均不合题意。speak…口中说出话语，说话。talk…融洽地说话，谈话。say…发出声音说出来；说。tell…对人说话，告知。speak和say的区别：speak是"使用语言"，say是"说出语言"。所以Speak English. 是"说英语"，而Say English．是"说出'英语'这个词"。
   
    2．【答案】A
   
    【解析】decline"下降，减少"，如：Domestic production of oil will continue to decline. 国内石油生产将继续下降。与rate连用表示比率下降。lessen意为"缩小，减少"，不能与rate连用。descend指"(位置)下降"，如：He descended into a cellar. 他走下地窖。slip 指"滑倒"，如：She slipped on the wet stones and fell．她在潮湿的石头上滑了一下跌倒了。
   
    3. 【答案】D
   
    【解析】enhance"提高"。magnify"放大"，如：A microscope magnifies bacteria. 显微镜将细菌放大。strengthen"加强"，不宜与chances搭配。enlarge指"面积或体积扩大"，如：enlarge a house by adding a new wing 新建一厢房以大房屋。
   
    4．【答案】B
   
    【解析】discern"辨别，分清"。A项discard"丢弃"；C项disperse"散开；传播"；D项disregard"不顾；轻视"。
   
    5．【答案】C
   
    【解析】pressed在这里是"强加"的意思。A项compelled"强迫"，是及物动词；B项posed"摆姿势"；D项tempted"引诱；尝试"。

   6. The timber rattlesnake is now on the endangered species list, and is extinct in two eastern states in which it once __________.
   
    A. thrived
   
    B. swelled
   
    C. prospered
   
    D. flourished
   
    7. However, growth in the fabricated metals industry was able to _________ some of the decline in the iron and steel industry.
   
    A. overturn
   
    B. overtake
   
    C. offset
   
    D. oppress
   
    8. When we listen to music, we are easily __________ of events in the past.
   
    A. remembered
   
    B. reflected
   
    C. memorized
   
    D. reminded
   
    9. Travelling and meeting new people ___________ the mind of young people.
   
    A. expanded
   
    B. enlarged
   
    C. broadened
   
    D. extended
   
    10. After our computer network ________ for the third time that day, we all went home.
   
    A. crashed
   
    B. collided
   
    C. smashed
   
    D. fell
   
    6．【答案】A
   
    【解析】thrived"兴旺；茁壮成长"。B项swelled"膨胀，肿胀"；C项prospered"发达"；D项flourished"茂盛；盛行"。
   
    7．【答案】C
   
    【解析】offset"抵消，弥补"；A项overturn"打翻；颠覆"；B项overtake"赶上，超过"；D项oppress"压迫，挤压"。
   
    8．【答案】D
   
    【解析】A项remember当"记住，回想起"讲时，后面直接加宾语；B项reflect当"沉思或回忆往事"讲时，应当是sb．reflect on／upon sth．；C项memorize意思是"记住，记忆"，后面直接加宾语；D项的remind当"使某人回想起或意识到……"讲时，应当是remind sb．of sth．／sb．。因此，从四个选项的词义及用法来看，只有D为正确答案，是remind sb．of sth．的被动语态。
   
    9．【答案】C
   
    【解析】A项expand意为"(使事物)在尺寸、数量及重要性方面变大、增多及增强"；B项enlarge意为"使事物尺寸变大"；C项broaden意为"使事物变宽、变广阔、变广泛"；D项extend意为"使事物在时间或空间上更长、更大"。根据题意，C为正确答案。
   
    10．【答案】A
   
    【解析】由句子中的computer network可知，要填入的动词与计算机网络系统有关。A项crash可以表示"计算机由于软硬件发生故障而停止运行"，与题意相符；B项collide意为"运动中的物体或人猛撞某物或互相撞击；意见等相冲突"。C项smash意为"粉碎；痛击，猛击；撞毁"；D项fall意为"落下，跌落"。因此，正确答案为A。