摘要：IwouldwritetoyouaslongasIarrivedthere. as / so long as还可表示“与--一样长,长达 .as long as 可用于肯定句或否定句.而so long as 只用于否定句. [实例对接] As long as people eat enough dairy foods, eggs, and meat, they can get essential proteins. (P78) [考例答案]C [考点考例二]whether引导宾语从句 Jerry did not regret giving the comment but felt he could have expressed it differently. A. why B. how C. that D. whether [知能进阶] whether或if引导宾语从句时.作“是否 讲.常放在动词ask, see, say, know和find out等后面.一般情况下.两者可换用.如: She asked whether / if she could have a seat. 但当作介词的宾语.与or not连用.与不定式连用.引导宾语从句放在句首表强调.引导主语从句或用if会引起歧义时.只能用whether.如:

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