阅读下面短文,在空白处填上适当的单词,使短文语义完整.每空一词.
Human beings may be the most intelligent animal species, but most of us are not too sure what we (61) _______when we talk about intelligence. One moment we will use the word to describe someone who(62) _______the answer to a difficult question, and the next we will say that someone is intelligent because they have (63) _______a lot of money. Intelligence is the ability to (64) _______up with new approaches to solve problems, as opposed to doing things out of habit or conditioning. Rats in a maze can learn (65)_______ the mistakes that they make, but this isn't really intelligence. A good example of intelligence is the way that humans use tools to make life easier for themselves. One measure of intelligence is the (66) _______of learning, or how long it (67) _______to find a solution to a problem. The ability to learn a language isn't directly related to intelligence. As children, we are all programmed to learn to speak and it is not the (68) _______that intelligent children always speak at a younger age. But as we (69)_______ older, intelligent people have an advantage because they will find ways of making the (70) _______of the abilities they have.