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题目：
1.Mom is _____ supper and we children are sitting at the table _____ it A. preparing ; prepared B preparing ; prepared for C preparing for ; preparing 老师 请帮我分析一下三个选项
解答：
解题思路： 见下
解题过程：
1.Mom is _____ supper and we children are sitting at the table _____ it A. preparing ; prepared B preparing ; prepared for C preparing for ; preparing 选B。*空prepare是及物动词，是“准备…”的意思，例如：prepare a meal/one’s lessons准备饭/功课。而第二空是prepare sth for sth，意思是“准备…来做某事”，在这里是准备餐桌来吃晚餐的意思。由于the table和prepare成被动关系，所以第二空用过去分词形式prepared for it. 整句话意思是：母亲正在准备晚餐，我们孩子们坐在准备好的餐桌旁等着吃晚餐。 对于Prepare具体用法见下： （1）prepare sb. for / to do sth.使某人对……作好准备 The teacher are preparing the students for the final examination.老师们正让学生准备期末考试。 The mother prepared her son to go to preschool.妈妈让儿子准备好去学前班。 （2）prepare sb. sth.为某人准备…… The host and hostress prepared us a delicious meal.主人为我们准备好美味佳肴。 （3）prepare sth. for + n. / v.-ing.（动名词）准备……，为……做准备 The peasants are preparing the ground for planting.农民们正在为栽种准备耕地。 （4）sb. prepare for sth. / to do sth.某人准备做…… The students are busy preparing for the college entrance examination.学生们正忙着准备考大学。 （5）be prepared for…为……准备，对……作好了准备，表示结果 The students are well prepared for the sports meeting.学生们为运动会做了充分准备。 They were not prepared for the attack at all.他们根本没有预料到这次袭击。 （6）be prepared to do sth.准备好……，愿意 Always be prepared to answer questions in class.课堂上要时刻准备回答问题。 （7）be prepared against防备 We are prepared against natural disasters.我们作好预防自然灾害的准备。
最终答案：略
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