做定语来修饰前面的名词a Chinese native。因为两者之间构成主动关系，所以使用现在分词做定语。

2. It is expected that American demand for au pairs will continue to rise in the next few years.

【翻译】人们预料美国人对于中国保姆的的要求在接下来的几年里会继续增加。

【分析】本句中的it是形式主语，真正的主语是后面的that引导的主语从句that American demand for au pairs will continue to rise in the next few years.句中的动词expect表示"预料"。

　　Perhaps you think you could easily add to your happiness with more money. Strange as it may seem, if you're unsatisfied, the issue is not a lack of means to meet your desires but a lack of desires-not that you cannot satisfy your tastes but that you don't have enough tastes.

Real riches consist of well-developed and hearty capacities (能力) to enjoy life. Most people are already swamped(淹没) with things. They eat, wear, go and talk too much. They live in too big a house with too many rooms, yet their house of life is a hut.

Your house of life ought to be a mansion (豪宅) , a royal palace. Every new taste, every additional interest, every fresh enthusiasm adds a room. Here are several rooms your house of life should have.

Art should be a desire for you to develop simply because the world is full of beautiful things. If you only understood how to enjoy them and feed your spirit on them, they would make you as happy as to find plenty of ham and eggs when you're hungry.

Literature, classic literature, is a beautiful, richly furnished room where you might find many an hour of rest and refreshment. To gain that love would go toward making you a rich person, for a rich person is not someone who has a library but who likes a library.

Music like Mozart's and Bach's shouldn't be absent. Real riches are of the spirit. And when you've brought that spirit up to where classical music feeds it and makes you a little drunk, you have increased your thrills and bettered them. And life is a matter of thrills.

Sports, without which you remain poor, mean a lot in life. No matter who you are, you would be more human, and your house of life would be better supported against the had days, if you could, and did, play a bit.

Whatever rooms you might add to your house of life, the secret of enjoying life is to keep adding.