下面一题是2013湖北武汉的中考英语考试试题：
—Is Kate serious?
—I _________. She never means it.
A. suppose B. agree C. believe D. wonder
答案选 D。我感觉有点奇怪，口语中可以单独说 I wonder. 吗？
—Is Kate serious?
—I _________. She never means it.
A．suppose B．agree C．believe D．Wonder
【参考译文】
——凯特(这次）是当真吗？
——我非常怀疑。（由于）她从未对此认真过。
【难题分析】
1.wonder这里的意思是“怀疑”“纳闷儿”
咱们看看《柯林斯高阶》的讲解及例句：
VERB 感到疑惑; 纳闷儿; 想弄了解 If you wonder about something, you think about it, either because it interests you and you want to know more about it, or because you are worried or suspicious about it.
I wondered what that noise was. 我纳闷儿那是什么声音。
He claims to be her father, said Max. Weve been wondering about him. “他自称是她爸爸，”马克斯说，“大家一直都在怀疑他。”
2.mean的意思是“对...严肃认真 /当真 ”
同样咱们看看《柯林斯高阶》的讲解及例句就了解了：
VERB 对…当真;对…严肃认真 If you say that you mean what you are saying, you are telling someone that you are serious about it and are not joking, exaggerating, or just being polite.
He says youre fired if youre not back at work on Friday. And I think he meant it...他说，假如你星期五还不回去上班的话就解雇你。我想他是当真的。
He could see I meant what I said. So he took his fur coat and left.他看得出我并不是只不过说说而已，于是拿起他的皮衣走了。
