英语：unit26 emotions-grammar extension教案（北师大版选修9）

Unit26 Grammar extension教案

Teaching Aim:

To introduce the usages of perfect verb forms to students:

①present perfect simple

②present perfect continuous  

③past perfect simple

④past perfect continuous

⑤future perfect simple

⑥perfect infinitive following modal verbs for subjunctive mood 

Stage 1  review of general use of continuous tense 

处理 SSI 文件时出错