原文欣赏The oldest boy came striding into sight. He had already changed into his billowing black Hogwarts robes, and Harry noticed a shiny silver badge on his chest with the letter P on it.
兄弟中最大的一个正大跨步地走来。他已经换上了黑色霍格瓦彻长袍。 哈利还注意到他胸前那个有字母"P "的闪亮的银徽章。

“Can't stay long, Mother,” he said. “I'm up front, the prefects have got two compartments to themselves—”
"妈，此地不能久留。"他说，"那些学生的班长已经为他们自己预留了两个包厢了……"

“Oh, are you a prefect, Percy?” said one of the twins, with an air of great surprise. “You should have said something, we had no idea.”
"噢，你不也是个班长吗，伯希？"孪生兄弟中的一个问道，脸上一副非常惊讶的表情，"你本应说些什么的。"

“Hang on, I think I remember him saying something about it,” said the other twin. “Once—”
"等会，我记得他曾经说过什么的。"另一个孪生兄弟说，"说过一次——"

“Or twice—”
"或是两次——"

“A minute—”
"等会儿——"

“All summer—”
"说了整个夏天呢——"

“Oh, shut up,” said Percy the Prefect.
"噢，闭嘴！"班长伯希大声叫道。

“How come Percy gets new robes, anyway?” said one of the twins.
"伯希这身新袍是怎么来的？"

“Because he's a prefect,” said their mother fondly. “All right, dear, well, have a good term — send me an owl when you get there.”
"因为他是个班长啊，"母亲高兴地说，"好了，旅途愉快！到那儿以后记得派只猫头鹰给我。"

She kissed Percy on the cheek and he left. Then she turned to the twins.
她在伯希的脸颊上吻了一下，伯希便离开了。她转向她的双胞胎儿子。

“Now, you two — this year, you behave yourselves. If I get one more owl telling me you've — you've blown up a toilet or—”
"你们两个——今年可得好好管住自己哟。如果我再收到一只猫头鹰来告诉我你们炸毁了厕所或者——"

“Blown up a toilet? We've never blown up a toilet.”
"炸毁厕所？我们可从没干过这等无聊事。"

“Great idea though, thanks, Mom.”
"不过，这主意不错嘛，谢谢妈。"

“It's not funny. And look after Ron.”
"这一点都不好笑。你们还得好好照顾罗恩。"

“Don't worry, ickle Ronniekins is safe with us.”
"别担心，小脏猫和我们一起很安全。"

“Shut up,” said Ron again. He was almost as tall as the twins already and his nose was still pink where his mother had rubbed it.
"住嘴！"罗恩再一次被激怒了，他鼻头上被掠过的地方现在仍是红红的。

重点讲解air的用法小结

1. 表示“空气”，作为物质名词 (不可数)，通常不与冠词连用。如：Webreathe air. 我们呼吸空气。Let's go out and have some freshair. 我们到外面去呼吸新鲜空气吧。我们到外; We should die without air. 没有空气我们就会死。若特指，则加定冠词。如：The air felt cold. 这里的空气很冷。The air in the room was bad. 房里的空气不新鲜。

2. 表示“空中”、“天空”，是不可数名词，但通常要与定冠词连用。如：The air was full of butterflies. 空中飞满了蝴蝶。Therewas thunder in the air. 天空中响起了雷声。

3. 表示“神情”、“神态”、“外观”、“气氛”“，通常与不定冠词连用，若特指则用定冠词。如：He has an air of importance. 他摆出一副煞有介事的神态。There was a comfortable air about herroom. 她的房间有一种令人舒适的气氛。He had the air of achild who was afraid. 他显出小孩受惊的神情。

4. 表示“不自然的态度”、“做作的姿态”，通常用复数，且不用冠词。如：You needn't take such airs with me. 你不必这样对我装腔作势。

how come 用法

How come 单独用为"怎么回事？""怎么搞的？"之意，比方说你跟朋友打招呼问，how are you? 他若说 Not so good，你就可以问How come? 想知道发生了什么。这里Why也可以代替使用。How come 的用法大部分就等于 why ，但是它的用法没有像 why 那么广, 它通常是用在你觉得奇怪, 而问为什么的时候。

比如说，有人早上一大早要去 supermarket,你就会问他，"How come?" 另外, 当别人问你一个问题, 而你不想回答时可以说 "How come?" 相当于"Why do you ask that?" 也就是说 "It's none of your business! "
虽然 how come 跟 why 的用法上差不多, 但二者的问法不同。
例如, "Why is our oven broken?" 换成 how come 的话, 要说成, "How come our oven is broken?" 注意一下, 这二句的 be 动词位置是不一样的。