Cheese is made from（由……做成） the milk of cows，sheep or goats．It has always been one of the most important foods for westerners．It can be eaten alone or served in salads，sandwiches，etc（可以单独吃奶酪，也可以放在色拉、三明治等食物中吃）．
A big cheese can mean an important person．The leader of the students'union（学生会）is，of course，a big cheese in the school．
“To be cheesed off”is“to be bored（讨厌极了）”．Many students are cheesed off with the cramming method of teaching（填鸭式的教学方法）．So are you，right？
Suppose your friend is about to take your picture．What will he most probably（可能地）tell you to do before he presses the shutter（按快门）？He will tell you to“say cheese（笑一个）”，won'the？
1.Cheese is made from the milk of _____ , _____ or _____ .
2.A big cheese can mean _____ _____ _____ .
3.If your friend is going to take your photo, he may tell you to _____ _____ before he presses the shutter.
Key:
Cheese
1．cows，sheep，goats
2．an important person
3．say cheese
