- 1.1+Reading+A+short+hist
- 1.1+words+and+expression
- 1.2+Reading+A+short+hist
- 1.2+Reading+John+Snow+de
- 1.3+Grammar：The+Past+Pa
- 1.3+Grammar+Subjunctive+
- 1.4++Grammar+Subjunctive
- 1.4+Grammar：The+Past+Pa
- 1.5+Reading+in+using+lan
- 1.5+Reading+in+using+lan
- 2.1+Reading：A+few+simpl
- 2.1+Words+and+expression
- 2.2+Reading：A+few+simpl
- 2.2+Reading+Puzzles+in+G
- 2.3+Grammar+The+Past+Par
- 2.3+GrammarSubjunctive+m
- 2.4+Grammar+The+Past+Par
- 2.4+GrammarSubjunctive+m
- 2.5+Reading+in+using+lan
- 2.5+Using+language+语言
- 3.1+reading：First+impre
- 3.1+Reading+Advice+from+
- 3.2+reading：First+impre
- 3.2+Reading+Advice+from+
- 3.3+Grammar+The+Past+Par
- 3.3+GrammarThe+use+of+“i
- 3.4+Grammar+The+Past+Par
- 3.4+GrammarThe+use+of+“i
- 3.5+Reading+in+using+lan
- 4.1+Reading+My+first+wor
- 4.1+Reading+The+earth+is
- 4.2+Reading+My+first+wor
- 4.2+Reading+The+earth+is
- 4.3+Grammar+Inversion(I)
- 4.3+GrammarThe+use+of+“i
- 4.4+Grammar+Inversion(2)
- 4.4+GrammarThe+use+of+“i
- 4.5+Reading+in+using+lan
- 4.5+Using+language+语言
- 5.1+Reading+An+exciting+
- 5.1+readingFirst+aid+for
- 5.2+Reading+An+exciting+
- 5.2+readingFirst+aid+for
- 5.3+Grammar：Revise+the+
- 5.3+grammar-Ellipsis(I)+
- 5.4+Grammar：Revise+the+
- 5.4+grammar-Ellipsis(II)
- 5.5+Grammar+Ellipsis(III
- 5.5+Using+language+语言
- 5.6+Reading+and+discussi
