There is a gigantic study that’s been done in 38 cultures.     1    turns out that in every culture, both males and females desire their potential mates to be bright. But we don’t have our IQs     2     (print) on our forehead. How do we know that someone’s     3    (intelligence)? In Western cultures, at least, it’s often by the person’s sense of humor. Because creating and appreciating jokes both require us to make     4     (connect) between many separate pieces of information,     5     (have) a sense of humor shows that we possess a wide knowledge and     6     we know how to think about things in novel and creative ways.

Take a cartoon     7     example: a mouse is standing outside his house, having just pulled a gun on a cat, who pretends to give in by raising one paw (爪). “Six rounds. Nine lives. You do the math,” the cat says. In order to appreciate this joke, you need to know that mice are     8     (usual) the victims of cats, many guns have six bullets (子弹), and cats     9     (say) to have nine lives because of their ability to always land on their feet. You also need to be able to do some math     10     (understand) that the cat has the advantage in this scene after all.