2004年1月语法, 请教各位老大.（2004－1－26，2004－1－34，2004－1－37）Zeros修改标题，见谅

26. Globally, the 1990's stood out as the warmest decade for what we have weather records.

34. Astronauts receive extensive training to prepare themselves both physically and psychologically for complexity and rigor of a space mission.这道题如何改呢?

37. The Louisiana Purchase of 1803 increased the territory of the United States by approximate 846,000 square miles, practically doubing the area of the United states.

这几道题如何改呢? 多谢

好象明白了 prepare sb.for sth. 是个词组, physically and psychologically 是修饰prepare的吧?

那37题呢