根据以下教学设计要求,完成 教学目标设计并回答两个答辩问题。 1. 题目: 2. 内容: A tornado is a rotating column of air from a thunder storm to the ground. The most violent have winds of more than 400 kilometers per hour. Almost all of them occur in the US, in the area from Texas in the southeast to South Dakota in the north. Tornadoes can pick up cars, trains and even houses and put them down in the next street-or even in the next town. They can take the fur off the back of a cat and the feathers off a chicken. They can destroy houses, but leave the furniture inside exactly where it was. 3. 基本要求: (1) 朗读全文。 (2) 配合教学内容适当板书 ( 3 )针对所给段落,设计指导说明文写作的教学活动 ( 4 )试讲,试讲时间 10 分钟