As 做连词确实有虽然,尽管的意思。但是要用时句子采用半倒装。题目如果是childlish _the activities might seem 就选B 了。一些例句:1、child as he is , he knows a lot .修饰child 的不定管冠词a 要省略2、try as we might , we lost the game ....
as也有“虽然,尽管“的意思,但好像只限于特定句型(部分倒装),如:Try as he might, he couldn'topen the door.(他想尽了办法,也没能打开门)。as更常用意思是:”当。。。“,“因为。。。”。while作为连词,其意思为“虽然”的情况很常见,如:While the news, so far,...