教学内容分析
This teaching period mainly deals with the grammar：the subjunctive mood.In the English language verbs are often divided into three different moods—the indicative mood，the imperative mood and the subjunctive mood.The indicative mood is used to indicate a fact or put forward a viewpoint.The imperative mood is used to express direct commands or requests.It tells you to do something.It is also used to signal a prohibition，permission or any other kind of exhortation.The subjunctive mood is used to express a condition which is doubtful or not factual.It is most often found in a clause beginning with the word “if”．It is also found in noun clauses，following a verb that expresses a doubt，a wish，regret，request，demand，or proposal.The following are verbs typically followed by clauses with the subjunctive mood：ask，demand，determine，insist，move，order，prefer，recommend，regret，request，require，suggest，wish.
In this period we will focus on only part of the usages of the subjunctive mood，that is，the subjunctive mood beginning with the word “if” and that following the verb “wish”．
