People were afraid to leave the house, ________ the police had been ordered to stand by in case of emergency, they were just as confused and helpless as anybody else.
问题1选项
A.and even if
B.but since
C.however after
D.for though
【选项释义】 A. and even if 而且即使 B. but since 但是自从 C. however after 然而在……之后 D. for though 因为尽管 【考查点】连词辨析。 【解题思路】前半句说到People were afraid to leave the house（人们不敢离开这所房子），后半句的they were just as confused and helpless as anybody else（他们和其他人一样困惑和无助）是人们不敢离开的原因，用表示原因的for连接，police had been ordered to stand by（警察已被命令随时待命）和they were just as confused and helpless as anybody else（他们和其他人一样困惑和无助）之间存在让步关系，尽管警察已经待命，但他们也很困惑无助，用though（尽管）连接。因此D选项正确。 【干扰项排除】 A选项and even if表示并列和让步关系； B选项but since表示转折和时间关系； C选项however after表示转折和时间关系； 均不符合本句的语义逻辑。 【句意】人们不敢离开这所房子，因为尽管警察已被命令随时待命，以防发生紧急情况，但他们和其他人一样困惑和无助。
