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
①To describe an activity which is/was/will be going on at a certain moment(时刻) of present, past or future
②To describe an action which is/was/will be going on during a short period of time at present, in the past or in the future.
Stage 2 special sue
①“always/frequently/constantly/for ever, continually +doing” to show the repetitiveness of the speaker
②Past continuous for polite request
③present continuous for future arrangement
Stage 3 state verbs
①What are the state verbs?
②the differences between the continuous tense and present tense
Stage 4 homework
Exercise 1-8 on page 17
【点此下载】