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解析

（2）Knowledge aims: Students can understand the meaning of new words about describing objects like “light, heavy, big, small...”. Students can master the sentence structure: “It’s heavy/small/big and light...”. Ability aims: Students can use the sentence structure by listening and reading some easy sentences. Students can describe things’ feature and give some advice. Emotional aims: Students would love to know more about the features of many things in daily life. Students will be more confident when communicating with others in English.