英语翻译如题 缩小范围翻译其中五句句子1、before considering this question it is

英语翻译
如题
缩小范围
翻译其中五句句子
1、before considering this question it is interesting to review briefly the evolution of the mind as an instrument.
2、the commonest way that has been used to find out the relative intellectual levels of creatures at different stages of evolutionary complexity has been to study the way they behave when set different kinds of puzzles.
3、the next,more subtle test of mental ability is to see at what level an animal can think about something when it is not there.
4、monkeys and chimpanzess,although they are weaker and less fierce than many other animals,possess brains which are as far along the evolutionary road as any creature other than man.
5、but evolution,although it has brought monkeys to a remarkable degree of cleverness,has stopped short at a crucial ability,the possession of which places man at a clearly superior level.