题目

按下列要求，写出在实验时可以生成SO2的化学反应方程式。(1)反应物中硫元素被氧化：________________________________________。(2)反应物中硫元素既被氧化又被还原：______________________________。(3)反应物中硫元素被还原：________________________________________。(4)反应物中硫元素既不被氧化又不被还原：__________________________。 My name is Yang Jiani. I am a middle school student in Guangzhou now. I like watching cartoons(动画片)all the time. I really enjoy myself when I'm watching cartoons. But now I don't watch them too often. Why? Because as a middle school student, I have to study(学习)many subjects. So I have to spend more time on my lessons and I study well. Now I only watch cartoons on Saturday or Sunday. And I don't watch them for a long time because it is bad for my eyes. I don't want to wear a pair of glasses at an early age. So I don't watch many cartoons now.1.Where does Yang Jiani study now?A.In China. B.In America. C.In Canada. D.In Australia.2.What does Yang Jiani like doing?A.Playing sports. B.Watching TV. C.Watching cartoons. D.Playing table tennis.3.Why doesn't she watch cartoons too often now?A.Because she has to study many subjects now. B.Because she likes watching soap operas(肥皂剧)now.C.Because she has a computer now. D.Because she doesn't like them now.4.When does she watch cartoons now?A.On Monday. B.On weekdays. C.On Friday. D.On Saturday or Sunday.5.From the passage, we know ______.A.Yang Jiani is a good student B.Yang Jiani doesn't wear a pair of glassesC.Yang Jiani is good at English D.Both A and B.