308.Thus, for example, we should expect to see consumers is a positive mood state evaluate products in more of a favorable manner than they would when not in such a state.

英语四级译文:
因此，比如，我们应该可以看到，消费者处在积极情绪状态下比处在消极情绪状态下更能以一种嘉许的态度评价产品。

四级词汇讲解:
本句的主干是we should expect to see...。其中，consumers in a positive mood state evaluate products in mare of a favorable manner than they would when not in such a state是省略了引导词that的宾语从句，该宾语从句的主干是consumers evalute products; in a positive mood state作consumers的后置定语。

英语四级考点归纳:
探析that在名词性从句中的省略情况。
名词性从句一般包括主语从句、表语从句、宾语从句和同位语从句。that引导名词性从句，本身无词义。

that引导主语从句或同位语从句时一般不能省略，而引导宾语从句或表语从句时可以省略。如:
1)No one can deny the fact that China has become one of the leading powers in the world.没有人可以否认，中国已经成为世界上的主要大国之一。(同位语从句的引导词that不能省略)
2)He thought ( that ) he would pass the exam this time.他认为这次可以通过考试。(宾语从句的引导词that可省略)