divisionUnit-6-When-was-it-invented？(第3课时)学案-(新版)人教新目标版

2021年1月10日发(作者：屈伯川)
Unit 6 When was it invented？（第3课时）
【学习目标】
1.知识和技能目标：
1）谈论重要发明的发明时间，发明者和用途。
2) 了解薯条、茶和篮球的发明历史。
2.过程与方法目标：
1）能运用所学知识练习被动语态的句式。
2）能用所学句型进行交际练习。
3.情感、态度和价值观目标：
充满想象力，善于观察事物，面对难题，用积极的态度解决， 发挥创造能力，认识世界，
改变世界。
【自主梳理】1. 要求学生翻开课本P45，迅速阅读1a-1e部分的内容。
并按要求完成课本上相应的任务.
2. 检查答案，先要求全班一起给出答案并检查讨论。
【重点领悟】通过谈论薯条的发明，充分掌握被动语态的用法.
【探究提升】初中被动语态语法讲解
(一) 语 态 分 类
英语动词有两种语 态.，主动语态和被动语态。主动语态表示主语是动作的执行者，被动语
态表示主语是动作的承受者。如 ：
They will build a new bridge over the river. (主动)
A new bridge will be built over the river. (被动)
汉语中常用“被”、“给”、“由”、“受”等词用来表示被动，而英语用：
助动词be + 及物动词的过去分词构成。
(二) 被动语态的时态、人称和数的变化主要体现在be的变化上，其形式与系动词be的变
化形式完全一样。
一般现在时：am / is / are + done
一般过去时：was / were + done
一般将来时：shall / will + be done
一般过去将来时：should / would + be done
现在进行时：am / is / are + being + done
过去进行时：was / were + being + done
现在完成时：have / has + been + done
过去完成时：had + been + done
将来完成时：shall / will + have been + done
过去将来完成时：should / would + have been + done
［注］被动语态没有将来进行时和过去将来进行时。
【学法引领】完成一个任务：
An interesting story for you The history of potato chips Did you know that
potato chips were invented __________ invented by mistake? Potato chips were
____________by a chef called George Crum. They were invented 1853 in ______.George
Crum cooked them for a were crispy long time until they __________.And he sprinkled
really salty lots of salt on them so they were __________.