This teaching period mainly deals with the grammar£ºthe subjunctive mood(2)£®From Unit 1 we have already known that in the English language£¬verbs are often divided into three different moods—the indicative mood£¬the imperative mood and the subjunctive mood.We have learned two kinds of subjunctive mood in Unit 1£ºone is found after the word “wish”£¬the other is found in a clause beginning with the word “if” talking about the imagined consequence of a situation at present that is impossible to happen.