题目

先化简（1+）÷，再从不等式组的整数解中选一个合适的x的值代入求值． 答案：解：原式＝× ＝， 解不等式组得﹣2＜x＜4， ∴其整数解为﹣1，0，1，2，3， ∵要使原分式有意义， ∴x可取0，2． ∴当x＝0 时，原式＝﹣3， （或当x＝2 时，原式＝﹣）．听下面一段对话，回答1至3小题。 1. What is the possible relationship between the speakers? A. Husband and wife. B. Friends. C. Neighbours. 2. What is the trouble with the woman? A. She has lost her key. B. She needs help to prepare dinner. C. She has left her key in her own house. 3. What will the woman possibly do? A. Meet her friend in the street. B. Make a phone call. C. Have dinner with the man.