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5.3 元素周期表(2) 秦蕾5.4 化学键(1)Unit22 A world of fun(3)胡湘华5.4 化学键(2)6.1 氧族元素 李新黔6.1 氧族元素习题课(1) 金仲鸣6.1 氧族元素习题课(2) 金仲鸣6.1 氧族元素综合练习(1) 李新黔6.1 氧族元素综合练习(2) 李新黔Acity of heros 杜友明6.2 二氧化硫 李新黔6.2 二氧化硫(1) 周磊6.2 二氧化硫(2) 周磊6.3 硫酸 李新黔Aacting out plays Artie6.4 环境保护 李新黔7.1 碳族元素 乐进军7.2 硅和二氧化硅 乐进军Chapter Eight The Attributive Clause(1) 张菁第五章 元素周期律 、元素周期表 刘智勇Chapter Eight The Attributive Clause(2) 张菁Chapter Five Language difficulties forUnit9~10(1)张菁Chapter Five Language difficulties forUnit9~10(2)张菁Chapter Four Language difficulties forUnit7~8(1)张菁Chapter Four Language difficulties forUnit7~8(2)张菁Chapter Nine The Attributive Clause(1) 张菁Chapter Nine The Attributive Clause(2) 张菁Chapter One Language difficulties forUnit1~2(1)张菁Chapter One Language difficulties forUnit1~2(2)张菁Chapter Seven Direct Speech & IndirectSpeech(1) 张菁Chapter Seven Direct Speech & IndirectSpeech(2) 张菁Chapter Six Language Difficulties for Unit11~12张菁Chapter Ten The Passive Voice(1) 张菁Chapter Ten The Passive Voice(2) 张菁Chapter Three Language difficulties forUnit5~6(1)张菁Chapter Three Language difficulties forUnit5~6(2)张菁Chapter Two Language difficulties forUnit3~4(1)张菁Chapter Two Language difficulties forUnit3~4(2)张菁English Imitation Show 刘秀琴GrammarThe use of “It” for Emphasis 孙亚梅It的用法 孙亚梅Language points in Unit Ten(1) 陈士君Language points in Unit Ten(2) 陈士君Language Points of Unit15 童炎Modal verbs 情态动词 孙亚梅Table Manners at western dinner table(1) 童焱Table Manners at western dinner table(2) 童焱Uint16 Reading 杨小洋Uint16 Speaking 杨小洋Unit11 Reading Retelling 张菁What is a guess JoshWho is this? Josh词汇 Josh代词(二) 胡湘华代词(一) 胡湘华倒装句、反意疑问句、祈使句 孙亚梅定语从句 孙亚梅动词 黄苏华动词(二) 胡湘华动词(一) 胡湘华动词词组(1) 胡湘华动词词组(2) 胡湘华非谓语动词的用法(1) 孙亚梅