VOA慢速英语:Making the World Wide Web More Usable to a Wider World

yet用作连词时，与but一样也主要用于转折，意为“但是”“而”：

I have failed, yet I shall try again. 我失败了，但我还要尝试。

The judge was stern, yet completely fair. 法官很严峻，却完全公正。

They are the same, yet not the same. 它们又一样，又不一样。

It is strange, yet it is true. 那真是怪事，然而却是事实。

I’ve been away only for three years, yet I can hardly recognize my hometown. 我仅在外三年，可我几乎认不出我自己的故乡了。

He said he was our friend, yet he wouldn’t help us. 他说他是我们的朋友，但却不肯帮助我们。

■有时用在句首。如：

Yet the house was cheerful. 但屋子里显得很欢快。

Yet its population has doubled. 但它的人口翻了一番。

2.Even for those who can read, much of the information that is available on the Web is not in a language they can understand.

这句话的主干是：much of the information is not in a language。that is available on the Web是定语从句，修饰information。they can understand是定语从句，修饰language。

3.Our main purpose is to advance the Web to empower people. It's focusing on the Web not just as a technology, but as one of the most powerful means for connecting people to knowledge and people to each other.

动词不定式做表语

①不定式作表语一般表示具体动作，特别是表示将来的动作。如：

To do two things at a time is to do neither. 一次做两件事等于未做。

What I would suggest is to start work at once. 我的建议是立刻开始干。

②如果主语是不定式（表示条件），表语也是不定式（表示结果）。如：

To see is to believe. 百闻不如一见。

To work means to earn a living. 工作就是为了生活。

③如果主语是以aim，duty，hope，idea，happiness，job，plan，problem，thing，wish等为中心的名词，或以what引导的名词性从句，不定式作表语是对主语起补充说明作用。如：

His wish is to buy a luxurious car in the near future. 他的希望是在不远的将来买一辆豪华轿车。