题目

不等式﹣＞1的解是（ ）A. x＜﹣5 B. x＞﹣10 C. x＜﹣10 D. x＜﹣8 答案：【答案】C【解析】不等式去分母，去括号，移项合并，将x系数化为1，即可求出解．解：去分母得：3（x﹣1）﹣（4x+1）＞6，去括号得：3x﹣3﹣4x﹣1＞6，移项合并得：﹣x＞10，解得：x＜﹣10．故选：C． According to a new survey, students' safety has become a big problem. Nearly 50% of students say they are worried about robbery(抢劫) on the way to and from school. Now in main big cities in China some schools have taught an unusual lesson: self-protection. Students like this lesson because there are no exams or boring classes. And they can learn how to save lives and know how to stop danger before it really happens.Ma Xiaocui, a teacher at Beijing No 37 Middle School gives young students advice on how to deal with danger.If you are being robbedKeep calm. If you cannot cry for help or run away, give the robber your money. Try to remember what the robber looks like and tell the police later.If you are in a traffic accidentIf a car hits you, you should remember the car number. If it is a bicycle, try to call your parents before you let the rider go. This is because you don't know how seriously you are hurt.If it is raining hard and there is lightningDon't stay in high places and stay away from trees.When there is a fireGet away as fast as you can. Put wet things on your body and try to find an exit. Do not take the lift.If someone is drowning(溺水)If you can't swim, don't get into the water. Cry out for help.Remember that danger is never as far away as you think. Take care of yourself at all times!1.Why do students like the self-protection lesson?a. There are no tests.b. The Lessons are exciting.c. They can learn how to save lives.d. They will learn how to stop danger before it happens.A.a,b,c B.b,c,d C.a,b,d D.a,c,d2.What should you do if a bicycle hurts you?A.Stop the rider going away and call your parents. B.Let the rider go before calling parents.C.Let the rider go and go to the hospital. D.Remember the bicycle number.3.What must you do if your house is on fire?A.Put things on your body. B.Take the lift to run quickly.C.Take what you have and then run away. D.Run away and find an exit as quickly as you can.4.How many kinds of danger are talked about in the passage?A.4. B.3. C.5. D.6.5.What should be the best title for this passage?A.How to Keep Calm B.Self- protection C.Danger D.A Special Lesson