最新教学资料人教版英语Unit 3 What were you doing when the UFO arrived Section B(1-2c) 【重难点预测】1.while 的用法。2.一般过去时和过去进行时的区别。【新知导学】1.What are you doing? Im doing homework.2.What were you doing at this time yesterday?What did you do yesterday?I was drawing a picture. I had many classes.【自主预习】1.请同学们先认真阅读学习目标，然后仔细研读课本P21，看完后将所学到的东西进行归纳，画出重要知识点，用红笔做好疑难标记。2.试着读一读单词表中本课时的新单词（或词组），将不会的单词圈出来，然后通过听磁带或求助于其他等方式将单词读准、读熟。3.写出下列动词的过去式。climb_ jump_ shout _ see _ say_ call_ take_ ride _ 4.写出下列词组的意思,如有困难，可参考资料。be scared of _ climb a tree _ jump down _ shout at/ to sb_ in a tree /on a tree_ police officer_ 5.翻译下列句子，并模仿造句。1) The cat is climbing a tree. _ 2) While I was talking, the bell rang._ 6.观察课本P20上1a的图片，根据model编对话。A: What is the girl doing? B: Shes shouting.Picture b: A: _ B: _ Picture c: A: _B: _Picture d: A: _B:_【合作探究】任务1：完成课本P21上2a和2b的听力训练题，在听之前充分利用2a表格中的词组和2b表中的人物大胆预测听力内容，为听力做好铺垫。任务2：讲故事。听力完成之后，读一读听力材料，再用while在小组内讲一讲这个故事，注意一般过去时和过去进行时的运用。考点聚焦一般过去时和过去进行时的区别1.一般过去时：过去某个时间发生的动作、存在的状态或过去经常发生的动作。谓语动词用动词的过去式，常与ago, yesterday, in 2010, last week(year, night, month) ，just now等连用。如：I bought a skirt for my daughter yesterday.Miss Green was in the classroom a moment ago.2.过去进行时：表示过去某一时刻或某一段时间内正在进行或发生的动作，由was/were +动词的-ing形式构成，常与this time yesterday, at that time, at 9:00 last night等时间状语以及when和while等引导的时间状语从句连用。如：They were singing songs this time last night. It was raining when I arrived at the station.He was selling the newspaper while he was waiting for the bus.练一练：用词的适当形式填空1. My mother _ (clean) the bedroom five minutes ago.2. When I left the office, it _ (rain) heavily.3. When _you _ (go) to bed last night?4. What _the boys_ (do) when you saw them?shout to 与shout at 区别shout to sb.是为了让那人听到或听清而大喊。shout at sb.是因为生气而非善意地向某人吼，带有攻击性。 练一练：用at 和to 填空1. Dont shout _ the old lady. It is impolite.2. My friend shouted _ me to give her a hand.【学案整理】_Section B (1 2c)练一练：1.cleaned 2.was raining 3.did, go 4.were ,doing练一练：1.at 2. to