如：Today， many countryside people have rush to the city in search of good jobs. The researchers are in their search for the animals which they want to experiment with.注意：in search of 中of不可换用for.

「知识拓展」search还可以是作动词，意为"搜寻"，search 的宾语是寻找的东西所在的处所，即search someplace for sth，意为"搜查某地找......"。

如：They searched the building for the robber. He searched his pockets for some change.

而search sb for sth意为"搜某人身以找到某物"。

如：He searched the boy for the lost pen.

search after／for = look for = hunt for意为"到处寻找"。

如：People who are searching after inner peace sometimes turn to religion.

7. pick up

「课文原句」They wash sand from the river in a pan of water， and expect to pick up gold， but they have been not fortunate enough to find any. （P18）

「名师点拨」pick up意为"拾起；拿起"。

如：He picked up his hat and went out.

pick up还有其他意思：

（1） 在中途搭载承载（乘客、货物等）。