题目

如图所示的物态变化的实例中，属于液化的是A.冰雪消融B.露珠的形成C.霜打枝头D.冰的形成 答案：【答案】B【解析】A．冰雪消融，是物质从固态变为液态的过程，属于熔化，故A错误；B．露是空气中的水蒸气遇冷液化成的小水珠，故B正确；C．霜是固态小冰晶，是水蒸气遇冷凝华形成的，故C错误；D．冰是液态水凝固形成的，故D错误。 阅读理解。 The Wilsons decided to go overseas for vacation. They had a family meeting to plan the vacation. "First," Mr Wilson said, "we should decide where we are going." "I don't agree," Mrs Wilson said, "I think we should decide when we are going first. We don't want to go to places when they are cold." Mr Wilson agreed, so the family's first decision was when to go on vacation. They decided to go in July. "Now we can decide where to go," said Mr Wilson. "But, Dad," Ben said, "don't you think that where we go depends on(依赖，取决于)how we go? If we plan to fly, we can go a long way. If we plan to drive, we can't go far." Again, Mr Wilson agreed, and they discussed this. At last they agreed to travel by plane. And so the planning meeting went on. The next day, one of Mr Wilson's friends at work asked, "Where are you going for vacation?" "Well," Mr Wilson told him, "we are going in summer by plane, but I don't know where we are going!" 根据短文内容回答下列问题。 1. Why did the Wilsons have a family meeting? 2. What did they decide first? 3. When did they decide to go? 4. How did the Wilsons decide to travel? 5. What they didn't decide？