题目

【1】How often does Eric exercise?A.Once a week. B.Twice a week. C.Three times a week.【2】What’s the matter with Eric today?A.He has a cold. B.He has a fever. C.He has a headache. 答案：【答案】【1】B【2】A【解析】【原文】M: Your brother Eric looks pale. I think he needs much exercise.W: You are right. He hardly exercises, usually just do that twice a week.M: How long does he exercise every time?W: Less than one hour. He has a bad cold and coughs a lot today.M: He should play sports at least four times a week. W: I think so. I must take him to the doctor now.M: Yo△ABC内接于⊙O，∠A=60°，BC=6，那么⊙O的半径等于A.B.C.6D.3