He would not receive her as his son's wife.这个句子对吗?

对的。儿媳也可以用daugther-in-law，但这里强调的更是缺少人情味，用son's wife似乎更为合适。

哦是这个问题，receive和accept。
是这样:receive其实更注重于接待，而accept更注重于观念上的接受

这句如果用receive意思就可能是：
他不会把这个女人当作自己的儿媳那样来招待。
也是没有问题的，
eg.
When she arrived by train she was disappointed that nobody came to receive her as promised.

但如果你是想说，他不会接受这个女人成为他的儿媳，那还是accept用得比较多一点，更注重观念上的接受。但如果用receive也可能是一样的意思，所以可以这样说，在一定程度上，两个词是可以通用的。

eg.
She loves Helena as a daughter despite her lack of social class and, recognizing Helena's virtue, would happily receive her as a daughter-in-law.

receive该为accept
这里是主观接受，不是客观

对的。

啥意思啊？语法应该不通。如果你想说“作为”的话，应该这样说：

He would not accept her to be his son's wife.

receive改accept好一些。
时态应该用will好点如果是单独的一句话。但我还是保留了过去时因为你没有前后文。

正确

若表主观接受应用：accept. receive指客观接受