本课型是单元整体教学的感知模仿环节，为学生的语言学习、语法练习，巩固；

This lesson type is a perceptual and imitative part of the unit's overall teaching. It provides students with language learning, grammar practice, and consolidation; it provides a carrier and is the main source for students to obtain information. <br>(3) Examination: <br>The grammar of this unit is the adverbial clause of time guided by when/while. It uses the past tense and past tense to tell what happened in the past and tells a story. It is a hot topic of the exam type due to the tense problem involved. , Has a large score, and it appears in all types of questions. The difficulty is that the past tense and the past tense are used, and students are prone to make mistakes.

This class type is the perceptive imitation link of the whole teaching of the unit, which provides a carrier for students' language learning, grammar practice and consolidation, provides a carrier, and is the main source of students' information.<br>(iii) To say:<br>The syntax of this unit is when/while-guided time-to-phrase clauses with the past and the past to tell the past, telling stories, because of the problem involved in the tense, it is a hot topic in the question type, accounted for a large score, in each type of question has appeared, the difficulty is the past when and in the past, students are easy to make mistakes.

This course type is the perceptual imitation part of the whole unit teaching, which provides the carrier for students' language learning, grammar practice and consolidation, and is the main source of information for students.<br>（3） About the examination:<br>The grammar of this unit is a time adverbial clause guided by when / while. It tells the past events and stories with the past continuous tense and the past tense. Because it involves tense problems, it is a hot topic in the high school entrance examination, which has a large score. It appears in all types of questions. The difficulty is the use of the past continuous tense and the past tense. Students are easy to make mistakes.