Question

17．I will tell you the good news as soon as you _______ back．（　�。�

• A． come
• B． came
• C． are coming
• D． will come

Answer 1

分析 你一回來(lái)我就會(huì)告訴你這個(gè)好消息．

解答 答案：A．
as soon as表示一…就…，引導(dǎo)的時(shí)間狀語(yǔ)從句，遵循主將從現(xiàn)的規(guī)則，從句主語(yǔ)you，故答案是A．

點(diǎn)評(píng) as soon as 的用法一般是兩種情況：
1、指未發(fā)生的動(dòng)作，規(guī)律是：主句一般將來(lái)時(shí)，從句用一般現(xiàn)在時(shí)代替一般將來(lái)時(shí)
如：I will tell him the news as soon as he comes back．
注：有時(shí)，為了特意表達(dá)剛剛完成某事就如何如何，需要用現(xiàn)在完成時(shí)．
如：I will go with you as soon as I have washed my face．
2、指緊接著發(fā)生的兩個(gè)短動(dòng)作，主從句都用一般過(guò)去時(shí)
如 He took out his English books as soon as he sat down