1、The World Is a Big Place!,Learning aims: 1. Master the new words and expressions: planet; billion; total; increase; Indian; Atlantic; Arctic 2. Learn more about the worlds geography. 3. Master the words and expressions of the continents and oceans in English. Learning important points: 1. The words and expressions in this lesson. 2. Know about the worlds physical features. Learning difficult points: Some geography features in the world.,New Words,planet n. 行星 billion n. 十億；千兆。

2、22青蛙賣(mài)泥塘水槽水槽灌足水灌足水缺點(diǎn)兒缺點(diǎn)兒應(yīng)該應(yīng)該蓋房子蓋房子飛舞飛舞盡情盡情愣住愣住1 1自由讀課文，注意文中的生字，做到三不：不自由讀課文，注意文中的生字，做到三不：不錯(cuò)字不添字不漏字。錯(cuò)字不添字不漏字。2 2不會(huì)讀的句子可以請(qǐng)教同。