题目

（8分）A、B、C均为有机物，且 1mol B与碳酸氢钠反应生成2mol的二氧化碳。A、B、C有如图所示的转化关系：试回答：（1）写出A的结构简式________________________；（2）写出B与C按物质的量之比1:1反应生成D的化学方程式_____________________，反应类型为               ；（3）写出C3O2的结构式                                。 How do you go to school? Some students may answer, “By car”. Maybe some others will look at them through green glasses (羡慕地). You needn’t feel____if you have no cars. It’s true that cars are____Many people find it hard to think about____life will be like if they have no cars. But now more people know that too many cars bring great____They make streets too____.People are trying to stop pollution (污染) from cars. One way is to make____cars. But it____much to make these cars. And more people think about better ways. We can____our lifestyle. A lot of Americans go to work____their bikes now. Riding bikes is clean and healthy. It helps people get strong. Let’s try together! I hope we can live in a green world____pollution some day.1.A. bad B. good C. well D. better2.A. interesting B. important C. difficult D. dangerous3.A. how B. what C. why D. where4.A. lessons B. fun C. skills D. problems5.A. small B. clean C. busy D. modern6.A. green B. red C. yellow D. white7.A. takes B. spends C. pays D. costs8.A. have B. change C. enjoy D. make9.A. on B. by C. with D. ride10.A. with B. in C. has D. without 1.A 2.B 3.B 4.D 5.C 6.A 7.D 8.B 9.A 10.D 【解析】试题分析：本文叙述了由于现在人们的车辆多了，给社会带来了一些污染的问题，需要引起全世界人的重视，如果生产环保的车造价太高，我们可以通过改变我们的生活方式来改变这一切。 1. 34 . They make streets too 35__ .可知...