初中英语人教版七年级下册Unit6 sectionA(1a-2d).docx

unit6 When was it invented?(period 1)教学设计 (人教版英语九年级) (Period1)教学设计一、教学目标（一）知识与能力了解一般过去时的被动语态用法，通过听力，了解一些发明的相关历史知识，如发明人，发明时间及发明物的用途等。（二）过程与方法采用pair work和 Roleplaying的学习策略，利用图片、听力材料等开展课堂教学。（三）情感态度与价值观 了解一些近现代发明的时间、发明者及用途，激发学生热爱发明情感，培养想象力，观察力和善于思考的能力，鼓励发挥想象力去认识世界，改造世界。 二、教学重难点（一）教学重点1询问发明物的发明时间、发明者、发明用途。2理解含有一般过去时的被动语态的表达方式。3就发明这一话题进行两两对话练习。（二）教学难点1用被动语态询问发明物的时间、发明者和发明用途。2理解含有一般过去时的被动语态的表达方式。三、教学策略语音教学让学生进行跟读模仿操练；词汇教学图文对照给学生释义点拨，让学生在具体的语境中体会、理解其含义，并学会运用；口语教学主要采取诸多的 pair work 问答式的口语交际活动反复进行操练；听力教学采取图文配对、排序和填空的方式。语法教学语言输入、抓住特征、模仿操练。四、教具准备 1. A blackboard 2. A computer with PowerPoint五、教学过程Step 1：Lead-in利用多媒体先展示出中国古代的四大发明，回顾久远的历史发明，再呈现出几张近现代的发明物图片，如mobile phone, car, , alarm clock, fridge, computer, light bulb, telephone , TV, robot, , camera等。让学生说出图中物品名称，感受到层出不穷的新发明，初步感知发明带给我们生活的巨大改变。【设计意图】通过图片对比引入新课，刺激学生感官，把他们的注意力迅速调动到发明物上来，并由此带领学生一起复习有关发明物的词汇，既唤起学生对话题词汇的记忆，又能开阔学生思维，为后面的听力做铺垫。Step 2：Think and say(1a)利用多媒体逐步呈现听力中要听到的4个发明物的图片，让学生先讨论预测它们被发明的先后顺序。Step 3：Listening (1b)先帮助学生复习有关年代的表达，培养学生听关键词来获取信息的听力技巧。然后再播放听力材料，让学生根据听的内容，确定各个发明物的年份。【设计意图】进行目标语言的输入。Step 4：Memory game(1c)Activity1:让学生回顾刚才的听力材料，利用多媒体逐步呈现刚才听力材料中出现的四项发明物，运用目标语言When was it invented ? It was invented in进行本节课的第一次pair work【设计意图】熟悉目标语言的表达。Step 5：Pair workActivity2:再补充一些发明物，让学生根据提示内容进行对话练习。【设计意图】强化目标语言的运用。Step 7：Think and say利用多媒体逐步呈现几位发明家和他们的发明物图片，让学生把发明物与相对应的发明家连线匹配。【设计意图】引出句型Who was invented by? It was invented by.的学习。Step 8：Listening（2a）Activity1 让学生先听对话，然后根据听到的顺序排出所提供的三项发明物。（在听对话之前，先引导学生学习理解三个新词：heel, scoop, electricity，扫清生词障碍。）【设计意图】帮助学生了解对话中谈到的发明物，为进一步的听做铺垫。Activity2(2b)让学生再听一遍对话，根据听到的内容，完成表格内强调发明物用途的关键词的填空。【设计意图】进行句型What is it/are they used for? It is/They are used for.的输入训练。Step 9：Pair workActivity1 让学生根据刚才表格填写的内容进行对话练习。熟练使用What is it/are they used for? It is/They are used for等句型。【设计意图】 帮助学生熟悉目标语言，并模仿对话内容表达出来。Activity2让学生根据老师提供的信息，用目标语言When was it invented ? It was invented in Who was invented by? It was invented by What is it/are they used for? It is/They are used for 来谈论 fridge, light bulb, car这三项发明的时间、发明者和用途。【设计意图】帮助学生掌握目标语言，并流利表达。Step10:当堂检测（Test in class）按要求完成下列各题。（1）Cars were invented in l885.(对画线部分提问） When were cars invented?（2）Julie Thompson invented electric slippers.(改为被动语态)Electric slippers wereinvented by Julie Thompson.（3） The shoes with lights are used for seeing in the dark.(对画线部分提问）Whatare the shoes with lights used for ?（4)The light bulb was invented by Thomas Edison. (对画线部分提问）Who was the light bulb invented by?（5)The refrigerator is used to keep food fresh (改为同义句)The refrigerator is used for keeping food fresh. Step11: Summary本节课我们紧承第五单元进一步学习理解了The passive voice in the simple past tense,并学会了用以下目标语言When was it invented? It was invented inWho was invented by? It was invented byWhat is it/are they used for? It is/ They are used for来谈论发明的历史.Step12：教师寄语There are many kinds of inventions in the world. They make our life better and better, easier and easier, more and more convenient. We should study hard to create more useful things with our wise brains. Believe in the world will be more and more beautiful, our life will be more and more wonderful because of us.【设计意图】进行本节课学生思想情感态度与价值观的渗透与教育。Step13：HomeworkThink of three inventions to make conversations using the target languages. Step14：Blackboard designUnit6 When was it invented? Section A (1a-2c)When was it invented? It was invented inWho was invented by? It was invented byWhat is it/are th