已知△ABC的三个顶点分别为A（-2，3）、B（-4，-1）、C（2，0），现将△ABC平移至△A′B′C′处，且A′坐标为（-1，2），则B′、C′点的坐标分别为______．
∵-1-（-2）=1，
2-3=-1，
∴点A的横坐标加1，纵坐标减1可得A′的坐标；
∴B′的横坐标为-4+1=-3，纵坐标为-1-1=-2；
C′的横坐标为2+1=3，纵坐标为0-1=-1．
故答案为：B′（-3，-2）、C′（3，-1）．
Jenny: Sam, you look unhappy. What’s the matter? Sam: My best friend, John is ill in hospital. Jenny: 小题1: What’s wrong with him? Sam: He has a stomachache and can’t eat anything. Jenny: But he looks very healthy, I think. Sam: 小题2: He’s too fat because he eats too much meat. Jenny: 小题3: Sam: You are right. His doctor told him to take more exercise and eat less meat, but he didn’t listen to him. Jenny: 小题4: Sam: Yes. Now he thinks his doctor is right and he begins to do what he told him. Jenny: 小题5: Sam: Me, too.
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