九年级英语上册Unit9教案.doc

九年级英语上册Unit9教案Aim1 掌握比较等级的表达法, 运用比较级来描述身边的事情。Aim2 了解一些自然灾害的基本知识并学会保护自己。认定目标自主学习Aim1 掌握比较等级的表达法, 运用比较级来描述身边的事情。Three times as strong asTen centimeters longer thanA is three times as strong as BA is not nearly as strong as BA is more than ten times bigger than BAim2 了解一些自然灾害的基本知识并学会保护自己。War, flood, pollution, natural, desert, earthquake, Be lack of waterFrom bad to worsePrevent fromBe filled withLearn by themselves:A is three times as strong as BA is not nearly as strong as BA is more than ten times bigger than BFlood is one of the biggest problems in the world.Ask the students to read the aims together, make sure they can grasp the aims.Give them five minutes to learn the language focus by themselves.Exercise1. translate the following phrases.Exercises2. recite the important sentences and translate the sentences.Exercises3. Find information about one and write an article for a news magazine. Use at least two comparisons.1. Soldiers worked hard to save people, and tried to prevent the water from rising higher by using bags filled wih sand.动词不定式的用法Prevent. From .2. The longer people waited for help, the more dangerous the situation The+ 比较级， the +比较级Translate the sentences.1. 这条河的长度是那条河的三倍。2. 大象比海龟几乎长五倍。3. 这座房子比你的房子大两倍。Discuss the language focusAnd give some examples. If n