Unit 1 Past and Present Grammar
1. To master the structure and basic usage of present perfect tense(PPT). (掌握现在完成时的基本结构、用法。)2. To learn the rules of forming the past participle of verbs.(学习动词的过去分词变化规则。)3. To learn some time expressions usually used in PPT.(学习常用在现在完成时里的时间表达方式。)
Learning aims
How long has Mr. Chen lived in Sunshine Town?2. Can Mr. Chen see his old friends as often as before?
He has lived here since he was born.
No. Because most of his old friends have moved away.
Lead-in Ask and ...


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