[填空题]Before considering this question it is interesting to review briefly the evolution of (1) ______
the mind as the instrument. The commonest way that has been used to find out the
relative intellectual level of creatures at different stage of evolutionary complexity has (2) ______
been to study the way they behave when giving different kinds of puzzles. For example, (3) ______
an ant possesses a complex routine of behaviour, but can it think The answer is what (4) ______
if an ant is forced to go through a maze of passages, many of which are dead ends,
on its way to its nestle, it starts by making a lot of mistakes and taking a great many (5) ______
wrong turnings. In the end, however, after it has to worry its way through often (6) ______
enough, it does learn to get to its nest without going into any of the blind alleys.
As one moves up the evolutionary scale the test of mind-power exemplified by solving (7) ______
the problem of getting through a

[填空题]Before considering this question it is interesting to review briefly the evolution of the (1) ______
mind as the instrument. The commonest way that has been used to find out the relative
intellectual level of creatures at different stage of evolutionary complexity has been to (2) ______
study the way they behave when giving different kinds of puzzles. For example, an ant (3) ______
possesses a complex routine of behaviour, but can it think The answer is what if an ant is (4) ______
forced to go through a maze of passages; many of which are dead ends, on its way to its
nestle, it starts by making a lot of mistakes and taking a great many wrong turnings. In the (5) ______
end, however, after it has to worry its way through often enough, it does learn to get to its (6) ______
nest without going into any of the blind alleys. As one moves up the evolutionary scale the
test of mind-power exemplified by solving the problem of getting through a maze be