25. It is well-known that the retired workers in our country are _________ free medical care.
    
    [A] entitled to [B] involved in [C] associated with [D] assigned to
    
    正确答案是(A)
    
    题目分析：(A)entitled to："给予……；授予"。(B)involved in："卷入，涉及"。(C)associated with："与……有关，和……联合"。(D)assigned to："把……分配给"。(A)与题意吻合，故应选(A)。
    
    26. The farmers were more anxious for rain than the people in the city because they had more at ______.
    
    [A] danger [B] stake [C] loss [D] threat
    
    正确答案是(B)
    
    题目分析：(A)danger不与at构成搭配，故(A)应排除。(B)(at)stake是固定搭配，意思是"危如累卵,在危险中，存亡攸关"。(C)at a loss："不知所措，亏本的"，不合题意，应排除。(D)at和threat不能构成搭配，故(D)也应排除。因此(B)为正确答案。
    
    27. I felt _________ to death because I could make nothing of the chairman's speech.
    
    [A] fatigued [B] tired [C] exhausted [D] bored
    
    正确答案是(D)
    
    题目分析：(A)、(B)、(C)是近义词，基本含义为"累"。(A)fatigued指人们由于过长时间的劳累，消耗了大量体力，非常需要休息或睡眠。(B)tired指人们由于过分操劳、烦燥、不耐烦而消耗大量的体能。(C)exhausted指体能消耗殆尽，全身毫无力气。(D)bored指由于枯燥、单调引起的厌倦。根据题意，正确答案为(D)。
    
    28. When the engine would not start, the mechanic inspected all the parts to find what was at _________.
    
    [A] wrong [B] trouble [C] fault [D] difficulty
    
    正确答案是(C)
    
    题目分析：本句空白处前是介词，故此处需填入名词。(A)wrong是形容词，而且也不能与at构成任何搭配，故(A)应排除。(B)trouble和(D)difficulty虽然是名词，但它们的前面与in搭配，不与at搭配，故(B)(D)均应排除。(C)at fault是固定搭配，意思是"出故障，出差错"。这与题意吻合，故(C)是正确答案。
    
    29. Your advice would be ________ valuable to him, who is at present at his wit's end.
    
    [A] exceedingly [B] excessively [C] extensively [D] exclusively
    
    正确答案是(A)
    
    题目分析：(A)exceedingly："非常"，合题意，故(A)是正确答案。(B)excessively："过分地"。(C)extensively："广泛地"。(D)exclusively："排它性地，专有地"。显然(B)、(C)、(D)都不合题意，均应排除。
    
    30. He failed to carry out some of the provisions of the contract, and now he has to _________ the consequences.
    
    [A] answer for [B] run into [C] abide by [D] step into
    
    正确答案是(A)
    
    题目分析： (A) answer for："对……负责，保证, 符合"。(B)run into："跑进, 撞上, 偶遇, 陷入"。(C)abide by："遵守"。(D)step into："插手，干涉，进入"。根据题意(A)是正确答案。
    
    31. The river is already _______ its banks because of excessive rainfall; and the city is threatened with a likely flood.
    
    [A] parallel to [B] level in [C] flat on [D] flush with
    
    正确答案是(D)
    
    (A)parallel to："与……平行"。(B)level in："相等"。(C)flat on："平躺"。(D)flush with："与……齐平"。根据题意(D)是正确答案。 
    

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