题目

下列实验装置设计正确，且能达到目的是（）     A． 配制稀硫酸溶液     B． 合成氨并检验氨的生成     C． 碘的CCl4溶液中分离I2并收回CCl4     D． 测定乙醇分子结构 答案：考点：  化学实验方案的评价． 专题：  实验评价题． 分析：  A．容量瓶不能用来直接稀释和配制溶液； B．干燥的氨气不能使试纸变色； C．温度计应测定蒸气的温度，其位置错误； D．利用生成气体的体积确定乙醇中﹣OH，从而确定结构式． 解答：  解：A．容量瓶不能用来直接稀释和配制溶液，People all over the world make edible (可食用的) homes and villages out of gingerbread (姜饼). Gingerbread can be smooth, soft bread, but if you want to build a house out of it, you make it as a cookie.Gingerbread probably came from the Middle East or Asia. People there have been making it for over a thousand years. It is said that gingerbread arrived in Europe in the tenth century. A man named Gregory Makar brought the recipe (食谱) from Armenia to France.Although gingerbread became popular in many parts of Europe, it really caught on in Germany. After the Brothers Grimm wrote the story of Hansel and Gretel, Germans began to make gingerbread houses. Later, when Germans moved to America, they brought this tradition with them. And it became a tradition for many Americans, especially around Christmastime.In 1991, the city of Bergen, Norway, started a gingerbread tradition of its own. Every winter, children aged eleven and under are invited to build a city out of gingerbread.There is also a gingerbread house competition in North Carolina, America. It’s called the National Gingerbread House Competition. Anyone aged five or older can join in.From cookies to houses, and from Armenia to America, gingerbread has changed a lot over the past one thousand years. And people keep imagining new uses for the delicious dessert.根据材料内容选择最佳答案。1.We can learn from the passage that Gregory Makar ______.A. was the first European to eat gingerbreadB. introduced gingerbread to EuropeC. built the first gingerbread houseD. made the first gingerbread2.What do the underlined words “caught on” mean?A. Became cheap.B. Became popular.C. Became useful.D. Became possible.3.Which of the following shows the correct order of the countries starting gingerbread traditions?A. Armenia→France→Germany→AmericaB. Armenia→Germany→France→AmericaC. France→America→Armenia→GermanyD. France→America→Germany→Armenia4.Who can enter the National Gingerbread House Competition?A. Only adults. B. Only kids. C. Anyone. D. People who are 5 or older.5.Which is the best title for the passage?A. Gingerbread housesB. How to make gingerbreadC. Why people eat gingerbreadD. The National Gingerbread House Competition