1.as soon as 一…就…

We chose the house for our home as soon as we saw it.
我們一看見這所房子，就把它選作我們的家了。

I phoned him so that he shall come as soon as possible.
我給他打了個電話，讓他能盡可能快地到來。

2.change into 變成；把…變成

Experts have warned for months that the H5N1 strain of bird flu could change into a form that spreads easily between people, a development that would spark a pandemic.
數月以來，專家們一直在警告說H5N1禽流感毒株可能突變成一種易于在人與人之間傳播的類型，這可能導致人類流感大流行。

There is concern that the virus-if given enough opportunities-will change into a form that is highly infectious for humans and spreads easily from person to person, but this has yet to occur.
令人擔憂的是，如果有足夠的機會，該病毒將轉變成對人類具有高度傳染性并很容易在人際傳播的形式，但尚未發生這樣的事情。