0 0 类别 : 教案

Unit 17 Nature 一、教学目标与要求 通过本单元教学，使学生了解并初步掌握现在进行时被动语态的用法，并 运用到语言实践中，如会话、短文写作等。复习本单元出现的表示打算和目的的 用语。经过课文的学习，学生应能用所学语言描述糜鹿的今昔对比，从而使学生 了解保护野生动物的意义。完成练习册安排的练习。 二、教学重点与难点 1．重点词汇 increase；disappear；alive ；research； protect； put on performances； atpresent； one after another 2．重要句型 1） How long will it take you to complete the trip？ 2） We want to givesome money to this project so that the number of these deer in China can be increased． 3） Itis hoped that one day they will have enough animals to set them free and let them live in thewild again． 3．语法 理解并初步掌握现在进行时被动语态的用法： 1） The life of the milu is beingstudied at present． 2） More milu deer are being moved to a new large nature park in Shishouin Hubei Province． 4．日常交际用语 打算和目的（Intentions and purposes）； 1） Why are you making thisjourney？ 2） We are trying to collect the money for a wildlife project． 3） We want to… sothat… 4） What is the purpose of your new project？ 5） That sounds a good idea． 6） Goodluck with your trip！ 三、课型 （一）对话课 Ⅰ．教具 录音机，投影仪。 Ⅱ．课堂教学设计 1．教师通过以下步骤导入本课： 向学生提出下列问题： 1） Do you like travelling with your friends by bike？ 2） What arethe advantages（good points） of travelling by bike？ 3） Usually what is the purpose of travel－ling？ Now listen to the dialogue and find out why they are making this journey． 2．准备放对话录音。借助投影片打出以下听前提问： 1） Why are they making this jour－ney？ 2） What will the money be used for？ 放录音一至两遍，请学生回答上述问题，教师予以必要订正。 Key： 1） They are trying to collect money for a wildlife project． 2） The money will beused for an important project of protecting milu deer． 根据本课对话内容，教师再提出一些问题，检查学生的理解程度。 1） Where are they going to travel？ 2） How many of them are in this group？ 3） Who arethey and where are they from？ 4） How long will it take them to complete the trip？ 3．再次放对话录音，学生跟读。将学生分为两人一组练习对话。数分钟后， 请两、三组同学到前面表演。 经数分钟练习后，教师可请几位同学到前面进行表演，教师予以讲评。 教师指导学生归纳本课中有关提出打算和目的的常用语句（见日常交际用 语部分）。也可以为学生设计一些活动，启发同学运用这部分语言编写对话。 情景 1： Someone is going to make a trip to his hometown． Ask him what he plans to dothere； how and when he is leaving and what time he wants to come back． 情景 2： Group 4 students plan to sell morning newspapers during their summer holi－days． Ask them when they will start doing so and the purpose of doing so． Also ask themwhat they will do with the money they earn． And what they will do if they won’t be able toearn money． 经数分钟练习后，教师可请几组同学到前面进行表演，教师予以讲评。也可 鼓励学生自己用其他情节编写对话。 4．要求学生将该课对话改写为一篇短文。教师可给予必要的提示。 提示语：1）make a trip to London ； 2）introduce the four of them； 3）how long their jour－ney is；4） the purpose of their journey 教师给出首句： Gary and his friends are going to make a trip to London from Beijing． 要求学生根据对话，参照老师所给提示及首句，编写短文。 Model： Gary and his friends are going to make a trip to London from Beijing． They are goingthere by bicycle．There are four of them：Gary，from Britain；Sun Huilin，from China；Pe－ter，from Australia and Lynn， from Greece．Their trip will be quite long，about 20 000 kilo－metres． They want to collect some money for a wildlife project． The project is about themilu deer． They want to give some money to this project so that the number of these deer inChina can be increased． 当堂要求学生完成，如时间允许，可请几位同学朗读自己的短文，教师予 以讲评。 5．布置作业 1）预习第 66课；2）完成练习册中安排的练习。 （二）阅读理解课 Ⅰ．教具 录音机，投影仪。 Ⅱ．课堂教学设计 1．检查生词及短语。 2．教师通过以下提问导入正课： 1） Have you ever been to the zoo？ 2） What animals doyou like most？3） Scientists say that many animals are disappearing from this world． Can youname some of the animals？ 4） People say that animals are our friends． Do you agree or not？Please give your opinions． 3．教师给出读前提问： 1） At what time did the milu deer disappear？ 2） Where is thebiggest nature park for milu deer in China？ 教师给学生数分钟，要求学生快速阅读课文。之后请同学回答上述问题。 Key：1） The milu deer disappeared during the Ming and Qing periods． 2） The biggest na－ture park for milu deer in China is the Nanhaizi Milu Park， and it is 20 kilometres south ofBeijing． 4．放课文录音，学生跟读一至两遍。教师就课文内容提问，检查学生的理 解程度（可参阅练习册中所列出的问题） 5．教师用投影仪打出以下 statements，要求学生判断其正误。并对错误的 statements进行修改。 1） In the past there were no milu deer in China at all． 2） From the text we know that thenumber of nature parks for milu deer in China is increasing every year． 3） Milu deer disap－peared during the Ming and Qing periods because too many of them had been taken to othercountries． 4） Today， the only milu deer that can be seen alive are in England． 5） In Englandthe weather is wet and cool and the milu deer was used to it． 6） From the text we know thatthere are too many milu deer in the great park which belonged to the Duke of Bedford in Eng－land． 7） In 1985， 39 milu deer were brought to Jiangsu Province from Beijing． 8） It is hopedthat one day milu deer will be able to live in the wild again． Key： 1） False（ The milu deer used to be very common in China．） 2） True3） False（Milu deer disappeared during the Ming and Qing periods because too many of them had beenkilled．） 4） False（ We can also see them in China and some other countries．） 5） True 6）True 7） False（In 1985， 39 milu deer were brought to Jiangsu Province from Britain．） 8）True 6．讨论题： Do you think it necessary for the milu deer to return to China？ Please givereasons． 7．布置作业 1）复述课文；2）完成练习册中所安排的练习。 （三）语言训练课 Ⅰ．教具 投影仪。 Ⅱ．课堂教学设计 1．教师检查课文复述。 2．教师从本单元词语中选择部分常见词语，配以例句介绍给学生。要求学 生反复练习这些例句，并请同学造句，教师予以讲评订正。 词语： complete； make a trip； collect money； increase； plan to do something； at pre－sent；put on performances；used to be／do；disappear； alive；protect；paint 例句：1） The workmen haven’t completed the building yet． 2） Please answer my questionusing a complete sentence． 3） My brother made a trip to Hubei． 4） They are collecting moneyfor the poor children．5） The production of the factory increased by 20 percent． 6） Theyplanned to spend their holidays in Shanghai． 7） She is feeling much better at present， Ithink． 8） The actor said that they would go to the country and put on some performances forthe farmers． 9） He used to be an army officer． 10） Did you use to play football？11） He wavedhis hand to the car until it disappeared． 12） A week after the earthquake， the PLA men foundthere was still someone alive under the destroyed buildings． 13） The villagers did everythingthey could to protect their forest． 14） He painted the door a bright colour． 3．教师用投影仪打出以下表格，组织学生俩人一组，利用课文中所提供的 信息填写表格。对比麋鹿的今昔。 Say something about the life of the milu deer in the past and the present situation． 学生先在小组内交流并相互启发、补充，然后请学生在班上交流。 4．布置作业 1）预习第 18单元；2）完成练习册中安排的练习。 四、难句分析 1．We are trying to collect money for a wildlife project．我们正在努力为一项 野生动物保护计划筹集资金。 “to collect money for”意思是“为……筹集资金／募捐”。例如： They are trying to collect money for the new stadium．他们正在为修建新的体 育馆募捐。 “筹集资金”除了用“collect money”外，还可以用“to raise money”。例 如： His wife raised the money for his research by selling her jewellery．他的妻子卖 掉了首饰为他的研究工作筹集资金。 2．There is very important Chinese deer called the milu deer．有一种非常重要 的中国鹿，叫麋鹿。 1）“deer”泛指鹿科动物，它的单复数同形。动物中单复数同形的词还有 “sheep”和“fish”，但“fish”有时也有复数形式，特别是指鱼的种类时。例 如： There are fishes of many colours and sizes．有许多颜色不同、大小各异的鱼。 2）“called the milu deer”是一个过去分词短语，作定语，相当于一个定语 从句（… whichis called the milu deer），修饰先行词“Chinese deer”。例如： In London there was a terrible disease called the plague．在伦敦曾经发生过一 种叫“黑死病”的可怕疾病。 In the middle of the picture there is a white building called the White House．在 图片中央有一个叫白宫的白色建筑物。 3． At present there are not many milu deer in nature parks in China， but the number isincreasins every year．目前中国的天然公园里还没有很多麋鹿，但数量 却在逐年上升。 “increase”的意思是“增加”，可作及物动词，也可以作不及物动词。例 如： Our difficulties are increasing．（vi．）我们的困难在增加。 The population has greatly increased these years．（vi．）这些年来人口大大 增加了。 Travel increases one’s knowledge of the world．（vt．）旅行使人加深对世 界的了解。 He increased the size of his farm year by year． （vt．）他一年一年地扩大他 的农场面积。 “increase”还可以作名词用。 注意：作动词时，重音在第二音节上，而作名词时重音在第一音节。例如： The increase of population will cause social problems．人口的增加将会引起种 种社会问题。 Crime in our big cities is on the increase．大城市中犯罪率在增长。 4． Until recently， the only milu deer alive in the world belonged to the Duke of Bedfordin England．直到不久以前，世界上仅有的活着的麋鹿是属于英国贝 德福德公爵所有。 “alive”是表语形容词，作“活着的”、“在世的”解。通常用作表语，当 其作定语时，则要放在所修饰的名词后。例如： The only man alive is called Jack Smith．唯一活着的人名叫 Jack Smith。 That fish is still alive．那条鱼仍然活着。 The soldier was badly wounded in the head， but still alive．那位士兵头部受 了重伤，但还活着。 作定语表示“活着的”的形容词是“living”，可以前置，如我们可以说： The only living man is called Jack Smith．唯一生存的人叫 Jack Smith。 She is considered to be the best living physicist in France．她被认为是法国目 前还活着的最好的物理学家。 类似的表语形容词还有： afraid（害怕的），alone（单独的）， asleep（睡 着的）等。 5．Since then the number of milu deer there has greatly increased．从那以后， 那里的麋鹿数量已经大大增加了。 句中的“numuer”作“数量／数目”解。 注意：“the number of…”和“a number of…”的区别。前者作“……的数 目”解，后者作“好些／许多”解。比较下面两个句子。 The number of books in our library is about 30 000．我们图书馆的藏书数大约 为三万册。 A number of books in our library are missing．我们图书馆有好些书籍遗失了。 6．…it is hoped that one day they will have enough animals to set them free… 人们希望有一天他们会有足够多的麋鹿可以放出去…… “… it is hoped that…”中的 it是形式主语，真正的主语是后面的 that引导 的从句。例如： It is hoped that the subway will have been completed by the end of this year．人 们希望地铁将在今年年底以前完工。 It is hoped that they will arrive at the village before dark．人们希望他们在天黑 前到达村庄。 类似的结构还有：It is said that…据说……；It is believed that…据信……； It is re－ported that…据报道…… 7．现在进行时的被动语态。 现在进行时的被动语态表示“某事／人此时此刻正在被……”的意思，其 构成形式是： am／is／ are＋ being＋过去分词。例如： Trees are being planted everywhere in our city．在我们城市现在到处都在种树。 I am being treated at the Red Cross Hospital．我正在红十字医院接受治疗。 Workers are being sent to rebuild the bridge．正在派工人去重建这座桥。 The project is being discussed at the meeting．这项计划正在会上讨论。