Hehadhiscameraready,justincasehesawsomethingthatwouldmakeagoodpicture.A.evenifBifonlyCincaseDsothat请问为什么不能选D

Question

He had his camera ready,just in case he saw something that would make agood picture.
A.even if
Bif only
C in case
Dso that
请问为什么不能选D

Answer 1

so tha t引导目的状语从句时,表示“以便；为了”,从句中常使用can /could /may /might /will /would /should等情态动词或助动词；
引导结果状语从句时,从句中一般不用can和may等词,在so that前可以用逗号,意思是“因此;所以”.
如果用so that 的话,后面加的应该是个目的或结果.
如：He had his camera ready so that he could take pictures of something good he saw.
他可以为看到的美好事物照相---这是他的目的
而句子中 he saw something that would make a good picture.
他看到可以构成美好图片的事物.----这不是目的,也不是结果.跟带相机没有这种关系.
但如果加上in case 以防.意思就不一样的.
in case he saw something that would make a good picture.
以防遇到可以构成美好图片的事物
这时 就成了目的状语从句了.
希望可以帮到你,如有不明,请再追问