重难点妙招设计单巧学现在完成时.docx

妙招名称巧学现在完成时妙招针对的重难点问题学段学科教材版本章节针对的重难点问题名称初中英语牛津译林八下Unit 1现在完成时背景介绍介绍妙招生成的背景，针对工作中的什么困惑？在学习现在完成时，学生常常对该时态理解不到位，疑问没有解决，往往陷入"乱花渐 入迷人眼”的状态。妙招描述详细描述您的妙招是什么，如何准备？根据题目可以归纳以下几点：妙招一：To learn the use of the present perfect tense. 妙招二：To understand the difference between “since” and “for” The differences: have been to & have gone to Since & for.实施过程介绍妙招在课堂中的使用方法（如什么时机使用，教师应注意什么）1现在完成时结构have/has +V（过去分词）2 for和since的区别。for和表示一段时间的词组连用。eg. for six hours/nine days/ two weeks/thirty yearssince和表示过去某一时刻的词或词组连用。eg. since nine o'clock this morning / last summer/ three weeksago/ Septembersince还可以引导时间状语从句，表示“自从以来二eg.自从他出生以来，他就住在这儿。 He has lived here since he was born. 自从我离开学校，我给他写过两次信。 1 have written to him twice since 1 left school.We have been friends for five years. （1 .用 since 改写句子 2.划线提问）We have been friends since 2000/ five years ago. （+时间点）1 have known him for two months.（同上）（2） .just的用法just作“刚刚”解时，多和现在完成时连用。eg. I have just finished lunch.我刚吃过午饭。The two visitors have justarrived.两位来访者刚刚到达。just now "刚才，动词只能用过去时态。They gave it to me just now.他们刚才将它给了我。（3） .have gone to 去了（没回来）have been to 去过，到过（已回来）eg. He has been to Beijing.他到过北京。（现在他不在北京）He has gone to Beijing.他上北京去了。（现在他不在这里）Where have you? I have to the park.Where is he ? He has to the library.设计一套测试或练习题，用于检验学生是否化解了“重难点”。这套题分：易、中、难 三个层次（围绕该重难点）。1 He came to our village two years ago. = He our villagesince two years ago.home for 3the watch 2 weeks ago.the book for 5 days, for half2 He left home three days ago. = He days.3 I bought the watch 2 weeks ago. = I进阶练习4 It is 5 days since 1 borrowed the book. = I 5 The film has begun for half an hour. = The film an hour.6 I got to know him 10 years ago. = I him for 10 years.7 There is a fatory. = There a factory for 20 years.8 Our school opened in 1960. = Our school since 1960.