一个关于once用法的问题Once out of the earth’s gravity,the astronaut is _____ by the problem of weightlessness.A.effected B.intended C.injured D.affected_____at the airport hetelephoned his wife and told her what he would do when he got home.A.Once arriving B.As soon as_百度作业帮
一个关于once用法的问题Once out of the earth’s gravity,the astronaut is _____ by the problem of weightlessness.A.effected B.intended C.injured D.affected_____at the airport hetelephoned his wife and told her what he would do when he got home.A.Once arriving B.As soon as he reached C.When he got D.Upon arrival两点不是两句句子的答案,而是once的用法,once不是连词么,要接完整句子的吧,为什么第一句可以这么用,而第二句要选D不能选A
2个句子中的once 都是连词 第一句是一旦的意思 而第二句想要表达的是 一.就的意思再用once就错了
once 在这里做‘一旦’之意sometimes与once in a while用法上的区别
sometimes与once in a while用法上的区别
once in a while等于every once in a while，但是用法上和sometimes 没什么区别
可是sometimes是副词啊，once& in&& a&& while&& 引导一个句子啊，用逗号隔开啊。这还不算区别啊。。。。
Once in a while, after some witticism , he would look down, and his eyes would meet hers.
每隔一小会儿，说了什么俏皮话以后，他就低下头，和她目光相交。
Whales, like all mammals, have lungs and must rise to the surface once in a while to breathe.
像所有哺乳动物一样，鲸用肺呼吸，所以必须不时升出海面。这两句都可以用sometimes替换的
Yes, she could still cook, once in a while.
对，我外婆她可以做菜。但只是偶尔做一下。但是这句似乎不可以替换……
的感言：好恐怖
相关知识等待您来回答
外语领域专家write-once的用法和样例：
用作名词 (n.)
Write about an unforgettable experlence.
写一次难忘的经历。
write-once的海词问答与网友补充：
write-once的相关资料：
相关词典网站：温馨提示！由于新浪微博认证机制调整，您的新浪微博帐号绑定已过期，请重新绑定！&&|&&
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