英语人教版八年级下册unit7 2a-2d.doc

Unit7 Section B第4课时（2a2e）明确要求:类别学习重点重点单词 bamboo, research, keeper, awake, excitement, illness, wild, government重点短语 die from, cut down, walk into, fall over, or so, run over, take care of重点句式1. They find that most of the babies are already awake and hungry.2. The babies often die from illnesses and do not live very long.3. Scientists say there are now fewer than 2,000 pandas living in the forests.课前自主学习:课前预习写一写1.竹子bamboo 2.研究；调查research3.饲养员;保管人keeper 4.醒着awake5.激动；兴奋excitement 6.疾病；病illness7.野生的wild 8.政府；内阁government译一译1.因而死亡，死于die from 2.砍伐cut down3.走路时撞着walk into 4.绊倒fall over5.大约or so 6.跑上前去run over7.照顾take care of背一背1.他们发现绝大多数熊猫宝宝都已经醒了，也饿了。They find that most of the babies are already awake and hungry.2.熊猫宝宝常常死于疾病，而且不会活很久。The babies often die from illnesses and do not live very long.3.科学家们说现在生活在森林里的熊猫不到2000只。Scientists say there are now fewer than 2,000 pandas living in the forests.课堂环节展示:新课导入（Teacher show some pictures of pandas to the students)Teacher: Do you know what they are? Yes, they are pandas. They are very lovely. Many people like them very much. Do you like them? There are only less than two thousand pandas in China. We should play a part in saving the animals. Do you want to know what the difficulties are? And how do people protect the animals? If you want to know the answers, lets read the article on Page 54.新课展示新课展示【完成教材2a2b的任务】1.利用方框中的单词两人一组互相谈论熊猫的情况，完成后请几位学生来展示谈论的成果。2.通读2b中的短文，找出10，1200和2000所代表的含义，请几位学生展示答案，教师点拨。3.再次细心阅读短文，理解每一句话的意思，小组解决遇到的疑难问题。4.教师点拨短文中出现的重点和难点。5.熟读短文，识记并背诵知识要点。【完成教材2c2e的教学任务】1.请几个同学回答2c中的问题。2.学生阅读2b中的短文，检查2c中的问题的答案。3.认真阅读课文，用短文中的单词或短语来补全句子，并大声朗读句子。4.熊猫是我国的国宝，我们每一个人都应该去保护它们。把你的想法和建议写出来，然后小组内交流讨论。【语法提要】1.run over此句中run over，walk into和fall over均为动词短语。（1）run over意为“跑上前去；跑过去”，其中over用作副词，意为“从的一边到另一边；穿越”。例句：She ran over to say hello，but I didnt recognize her.她跑过来打招呼，但我没有认出她来。（2）walk into意为“（走路时意外地）撞上”。例句：As he was thinking too deeply and not paying attention to where he was going，he walked straight into a tree.由于他陷入沉思，没有注意看路，所以径直撞到了一棵树上。（3）fall over表示“摔倒；跌跤；倒下”。例句：Dont run too fast，or you might fall over.别跑太快，要不你会摔跤的。Many trees fell over after the storm.暴风雨后许多树木都倒了。fall over sth.则表示“被某物绊倒”。例句：Tina fell over the dog and broke her arm.蒂娜被那只狗绊了一跤，摔断了胳膊。2.fewerfewer是few的比较级，意为“较少的；更少的”，后接可数名词的复数形式。注意要将其与less的用法区分开来，less也表示“较少的；更少的”，但它是little的比较级，其后接不可数名词。例句：Few people have read the book，and even fewer understand it.很少有人看过这本书，看懂的人就更少了。3.die fromdie from是动词词组，意为“死于，因而死。”。例句：In big cities during cold winter months，many old people die from the polluted air.在寒冷的冬季，许多住在大城市的老年人死于空气污染。Many villagers die every year from snake bites.每年都有许多村民被蛇咬而死亡。die from与die of相同点：二者都可表示“死于”，其宾语为表示死亡的原因。当表示因疾病死亡时，二者可互换使用。例句：His grandfather died from/of cancer in 1999.他的爷爷于1999年死于癌症。具体区别如下：die from意为“死于，因而死”，其宾语表示死亡的原因。具体使用时常用于由于外部创伤或间接的原因致死，如由于衰弱、饮食过度、劳累或不明原因致死。die from an earthquake (a traffic accident，a lightning，etc.)死于地震(交通事故、雷击等)。例句：She died from a traffic accident.她死于一场交通事故。die of意为“死于，因而死”，其宾语表示死亡的原因。具体使用时一般用于疾病、疲劳、寒冷、饥渴、年老、失望、悲伤等人体自身原因造成的死亡。die of illness (fear，disappointment，old age，etc.)死于疾病(恐惧、失望、年老等)。例句：He died of sorrow.他死于忧伤。【问题探究】根据汉语意思完成句子。1.你越仔细，就会越少犯错。More (much) careful you are, fewer (few) mistakes you will make.2.昨天他下楼梯时摔到了。He fell over while coming down the stairs yesterday.3.我的爷爷死于心脏病。My grandfather died from/of heart attack. 学以致用:活学活练练根据汉语意思完成句子。1.迈克走路时不看路，撞到了墙上。Mike wasnt looking and walked into the wall.2.虽然他有更多的钱，但是他朋友更少了，陪家人的时间更少了。Although he has more money，he has fewer friends and less time with his family.3.他上周去世了，死