Unit 1 Tales of the unexplained
Period 4 Grammar
编写者：宝应安宜高级中学 潘诒林（高二）
一．【设计思想】
从课文的具体语境入手理解现在完成时与现在完成进行时，并补充讲解归纳现在完成时与现在完成进行时的常见考点并练习。
二．【教学目标】
By the end of this class, the students will be able to
1. learn the form and usage of the present perfect tense and the present perfect continuous tense.
2. know when the present perfect tense and the present perfect continuous tense is used in sentences.
三．【教学重难点】
1. Compare the differences between the simple past tense and the present perfect tense.
2. Learn the differences between present perfect tense and present perfect continuous tense.
四．【教学环节】
【课堂导入】观察思考（请赏析以前课文中含有“现在完成时或现在完成进行时”的句子并将它们翻译成中文）
