appear用作连系动词，其意为“似乎”“好像”，其后的表语可以是：
不定式
He appeared to be talking to himself. 他仿佛在跟自己讲话。
She didn't appear to know anything about it. 她似乎对此一无所知。
They appeared to be satisfied with the result. 他们似乎对结果感到满意。
They aren't as clever as they appear to be. 他们并不像他们看起来那样聪明。
There appears to be little enthusiasm for your idea. 人们好像对你的想法不大热心。
There seems to be something wrong here. 这儿好像有点不大对劲。
形容词
He appeared quite well. 他显得身体相当好。
He appears quite rich 他似乎相当富有。
To compromise appears advisable. 看来以妥协为好。
名词
He didn't want to appear a fool. 他不愿显得像个傻瓜。
It appears a true story. 这似乎是一件真事。
从句
It appears that he forgot to sign the letter. 他似乎忘记在信上署名了。
It appears (that) the plane did not land in Rome. 似乎飞机并未在罗马着陆。