70. A President entering the final two years of a second term is likely to be at a severe disadvantage and often unable to carry out a legislative program.
(A) likely to be at a severe disadvantage and is often unable to
(B) likely severely disadvantaged and often unable to
(C) liable to be severely disadvantaged and cannot often
(D) liable that he or she is at a severe disadvantage and cannot often（A）
(E) at a severe disadvantage, often likely to be unable that he or she can
Choice A is best. Choice B lacks the necessary infinitive after likely. In B and C, disadvantaged, which often means “hampered by substandard economic and social conditions,” is less precise than at a disadvantage. In C and D, cannot often carry out suggests that a President with limited time suffers only from an inability to achieve legislative goals frequently, not from a frequent inability to achieve them at all. In C, liable, followed by an infinitive, can legitimately be used to express probability with a bad outcome, but C is otherwise flawed as noted. D’s liable and E’s unable should be followed by an infinitive rather than by a relative clause beginning with that.
黄色部份在讲啥??能否请过路NN解一下....
PS:能否补充一下can/ be able to ; cannot/ be unable to / be liable to的用法.....TKS
顶!!
cannot often do表示“能做某事，只是不能经常做某事”
而原文意思是“经常不能做某事”，而不是“不能经常做某事”
这句话是在说C中的liable用错了，但是OG的解释不懂，是那个错误呢
longmon：liable，1，be liable to do sth，to be likely to do or say sth or to behave in a particular way，especially because of a fault or natural tendency：the car is liable to overheat on long trips.
由此看来，原文讲的那种情况，不是总统的本意或者由于他具有的fault导致的结果，而是他所处的环境导致的，所以用liable不太合适。
longmon：liable，1，be liable to do sth，to be likely to do or say sth or to behave in a particular way，especially because of a fault or natural tendency：the car is liable to overheat on long trips.
由此看来，原文讲的那种情况，不是总统的本意或者由于他具有的fault导致的结果，而是他所处的环境导致的，所以用liable不太合适。
哦，谢谢GG指点
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