2.表伴随关系,“和……”“与……同时”。如:
【考例1】 John received an invitation to dinner, and with his work_____, he gladly accepted it.
A. finished B. finishing C. having finished D. was finished (A)
2.表时间,“超过,晚于”,after较常见。如:She never stays out beyond 9o’clock.
3.表程度,“因太突出而超出……”“因太惊奇而出乎……”“因太难而能力所不及”。
【考例4】 Elizabeth has already achieved success her wildest dreams.(08陕西卷,19)
A. at B. beyond C. within D. upon (B)
1.表应该,侧重说话者的主观意志,表建议或规劝。如:
I should pay Tracy a visit, but I’m not sure whether I will have time this Sunday.
2.unless 从句的主语与主句的主语相同时,unless后面的主语与动词可省略。
Unless (he is) in uniform, he doesn’t look like a policeman.
【考例1】I won’t call you ______ something unexpected happens.(07全国卷I,26)
A. unless B. whether C. because D.while (A)
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