江苏省徐州市王杰中学高中英语 Module2 Unit1 Tales of the unexplained grammar 2 导学案 牛津译林版必修 2 锁定目标 找准方向备注 Learning aims 1. Learn how to form and use the present perfect tense.2. Understand when the present perfect continuous tense is used in sentences. 自主预学 摸清学情预学指导：1.学生自主预习课文中的 grammar 部分 2.完成预习讲义中的部分预学检查：检查课文预习的情况，根据讲义做的情况进行讲解合作探究 携手共进Step 1 Compare the two tenses1. We use the present perfect tense to talk about an action completed in the recent past, and the present perfect continuous tense for an action that started in the past and is still happening. 现在完成时和现在完成进行时都表示动作从过去开始，但现在完成时可表示事件或动作刚结束，而现在完成进行时则强调动作仍在继续。1) Li Jia has read a book about Stonehenge. （表示她已经读完了。)2) Li Jia has been reading a book about Stonehenge. (表示她仍在读。)2. We can use the present perfect tense for repeated actions, and the present perfec t continuous tense for non-stop actions.We usually use the present perfect tense to ask questions beginning with how many/much, and the present perfect continuous tense to ask questions beginning with how long.现在完成时可表示反复发生的动作，提问时用 how many / how much。而现在完成进行时则表示持续的、不间断的动作，提问时用 how long。1) —How many times have you visited Egypt this month? 你这个月去了埃及几次？—I have visited Egypt twice this month. 我这个月去了埃及两次。拓展提升 学以致用13. We can use either a state verb or an action verb with the present perfect tense but we usually can only use an action verb with the present perfect continuous tense.现在完成时可以用表示状态的动词或表示动作的动词做谓语。而现在完成进行时则只能用表示动作的动词做谓语。1) I have had this camera for five y...
