Question

1．一有人求助，他就会伸出援手．
He will give a handas soon as someone asks for help．

Answer 1

分析 as soon as someone asks for

解答 答案：as soon as someone asks for．表示一…就用as soon as引导的条件状语从句，遵循主将从现的规则，从句主语someone，谓语动词用单数，ask for help求助，故答案是as soon as someone asks for．

点评 as soon as 的用法一般是两种情况：
1、指未发生的动作，规律是：主句一般将来时，从句用一般现在时代替一般将来时
如：I will tell him the news as soon as he comes back．
注：有时，为了特意表达刚刚完成某事就如何如何，需要用现在完成时．
如：I will go with you as soon as I have washed my face．
2、指紧接着发生的两个短动作，主从句都用一般过去时
如 He took out his English books as soon as he sat down
不过，我也见过从句和主句都用一般现在时的情况．