九年级英语上册Unit6Whenwasitinve教案新版人教新目标版 4页

Section B (1a－1e) ‎ ‎1．重点单词：crispy，salty，sour，customer ‎2．重点短语：by mistake，in the end ‎3．重点句式：‎ Potato chips were invented by mistake.‎ George wanted to make the customer happy.‎ ‎1．重点单词和句型 ‎2．能够熟练运用被动语态 能够熟练运用被动语态 一、预习课本P45新单词并背诵，完成下面的汉译英。‎ ‎1．脆的________　　　　2.咸的________‎ ‎3．酸的________ 4.顾客________‎ 二、认真预习1a－1e找出下列短语和句型。‎ ‎1．错误地________________________________________________________________________‎ ‎2．最后________________________________________________________________________‎ ‎3．炸薯条被错误地发明了。________________________________________________________________________‎ ‎4．乔治想让顾客高兴。________________________________________________________________________‎ Step 1　情景导入 Teacher：Do you like eating potato chips？I am sure most of us like them very much.‎ But do you know who invented them and how they were invented？Today let's learn together to know more about the history of the potato chips.‎ 环节说明：以学生们喜爱的薯条的发明为导入，引起学生的学习兴趣，为听力做好铺垫。‎ Step 2　完成教材1a－1e的任务 ‎1．学生朗读1a中的单词，教师纠正读音错误，然后两人一组互相提问背诵单词。(3分钟)‎ ‎2．你知道1a图片中的水果是什么味道吗？用方框中的形容词描述水果的味道，完成后小组内互相交流。(3分钟)‎ ‎3．在1b四个表示味道的单词后面填写具有这种味道的食物，完成后小组内互相交流。(3分钟)‎ ‎4．听录音，根据对话内容判断句子的正误，集体核对答案，完成1c。(3分钟)‎ ‎5．再听一遍录音，完成1d的填空，完成后学生展示答案，教师点拨。(3分钟)‎ ‎6．听第三遍录音，学生跟着大声朗读。(2分钟)‎ 2‎ ‎7．两人一组利用1c和1d中的听力信息，仿照1e形式编练对话，并在小组内互相表演对话。(4分钟)‎ ‎8．小结训练。(2分钟)‎ ‎(B)1.John took my clothes ________ mistake.‎ A．to　　　B．by　　　C．about　　D．on ‎(C)2.Though my grandmother is old，she is funny enough to make ________.‎ A．us to laugh B．our laugh C．us laugh D．ours laugh ‎(C)3.This fish is cooked by a cook ________ Jack.‎ A．call B．calls C．called D．calling ‎(C)4.He puts too much salt into the dish，so it is very ______.‎ A．sweet B．crispy C．salty D．sour 环节说明：通过听说训练，让学生熟练地掌握了语言目标；通过小结训练，让学生熟练地掌握了重要的知识点。‎ Step 3　问题探究 ‎ (　)1.—Clark，your room is really in a mess.It needs ________.‎ ‎—Sorry，mum.I'll do it at once.‎ A．clean　　　　　B．cleaned C．to clean D．to be cleaned 答案选择D，need加了s，则说明它不是情态动词，故排除A，选项B也不符合语法，短语need to be done＝need doing表示“需要被……”，所以选择D。‎ ‎(　)2.My classmate is very careless，and he always takes my school things ________.‎ A．by accident B．by mistake C．in the end D．without doubt 答案选择B，根据句意“他总是错拿我的文具”，by mistake意为“错误地”。‎ 请学生们做前面课时训练部分。‎ 2‎