题目

A为两种金属组成的合金，发生如下图所示的变化： 试填写以下空白： (1)合金A由________和________组成。 (2)写出下列变化的离子方程式。 C→E______________________________。 D→F___________________________    ___。 答案： (1)Al Fe   （每空1分） (2)Al3＋＋4OH－===AlO＋2H2O  （3分） Fe(OH)3＋3H＋===Fe3＋＋3H2O   （3分）阅读下面短文，根据短文内容，从短文后的选项中选出适当的选项补全短文（有一多余选项），并将选项的编号依次填入题后表格中。I could not sleep well last night. I felt that my body was burning . 1.Mom took my temperature and said, “You have got a fever, Nancy.” She called my teacher and told her that I could not go to school. Then Mom took me to see the doctor.The hospital was crowded. 2.I waited for over half an hour before I saw the doctor. I told the doctor about my trouble. The doctor asked me what food I ate yesterday. I said I ate French fries, ice-cream and drank lots of cola. 3.The doctor said my lifestyle was very unhealthy. I ate too much unhealthy food and did not get enough rest. 4.And he told me to take some medicine, too.I followed his advice and took the medicine. Now, I feel much better. Mom always says, “An apple a day keeps the doctor away.” 5.I will also go to bed early at night. I must keep good habits in order to stay healthy.A. The doctor isn’t in the hospital today.B. From now on, I will eat more fruit and vegetables.C. This morning, I woke up with a terrible stomachache.D. He told me that I should drink a lot of water and get plenty of sleep.E. I could see some children crying after being given an injection (打针).F. I also told him I did not get enough sleep during the week because a big test was coming.A. The doctor isn’t in the hospital today.B. From now on, I will eat more fruit and vegetables.C. This morning, I woke up with a terrible stomachache.D. He told me that I should drink a lot of water and get plenty of sleep.E. I could see some children crying after being given an injection (打针).F. I also told him I did not get enough sleep during the week because a big test was coming.