1、2014-2015 高中英语四川省同步教案:Unit 4 Wildlife protection(第 2 课时)(人教新课标必修 2)Period Warming Up & Reading(教师用书独具)教学目标(1)熟记学案中所列出的单词和短语。(2)通过学案中所给出的重点单词和重点短语的学习,让学生能够正确理解和使用这些单词和短语,能够运用这些词语造句。(3)通过对这些词汇的理解能够更深层次的理解课文,并通过课文加深对这些词汇的理解,更加熟练的运用这些词汇。(4)通过对本课文的理解,让学生学会写建议信,以提高学生的书面表达能力。教学地位单词和短语是构成句子的最小单位,在语言学习中起至关重要
2、的作用,所以理解和正确使用英语单词和短语是英语学习的重点所在。(教师用书独具)新课导入建议播放视频:动植物的生存环境由好变坏的动植物数量上的差异(链接到土豆网)教学流程设计 老 师 检 查 上 堂 课 所 布 置 的 作 业 , 检 查 学 生 对 学 案 预 习 的 情 况 。 导 入 新 课 。让学生就“课堂互动探究”(见学案第 47 页)进行讨论,让学生各自发表自己的见解,然后让各个讨论组派代表汇报各自讨论结果。 老让 学 生 再 次 阅 读 课 文 , (课 本 第 26页 )以 加 深 对 所 学 单 词 与 短 语 的 理 解 。师针对难点和重点词汇进行讲解,并补充学案中所遗漏的重
3、点词汇,补充一些必要的练习。让 学 生 针 对 各 自 不 同 的 意 见 展 开 讨 论 , 然 后 老 师 给 出 详 细 正 确 答 案 。 布置作业。让学生完成课本第 28让 学 生 完 成 “自 我 评 估 ”(学 案 第 52页 )。页第 1、2、3 题, “课时作业”和预习 Period (见学案第 53 页)。1decrease vt.& vi. 减少; (使)变小;或变少 n减少 ,减小If their habitat is threatened or they cannot find enough food,their numbers may decrease.(P25)如
4、果它们的栖息地受到威胁或是它们找不到足够的食物,它们的数量就会减少。They are making every effort to decrease the production cost.他们正尽力降低生产成本。Theres a decrease in the annual birthrate.年出生率正在下降。on the decrease 在减少中a decrease in.在方面减少了decrease to.减少到decrease by.减少了decrease from.to.从减少到on the increase 在增加The price of wheat has decreased
5、 by 15%.小麦价格降低了 15%。The mistakes he has made are on the decrease.他犯的错误正在减少。介词填空There has been some decrease traffic accidents this year.The club members decreased two hundred compared with last year.The housing price is hoped to decrease 10% this year.To our delight,varieties of birds in the forest
6、are the increase.【答案】 in to by on2die out 灭亡;逐渐消失As a result these endangered animals may even die out.(P25)结果濒危动物甚至可能要灭绝。This kind of bird is dying out.这种鸟行将灭绝。Many old customs have died out.许多旧的风俗已不复存在。die of 因而死(一般指死于内因,如疾病、饥饿、情感原因等)die from 因而死(一般指死于外因,如外伤、车祸、污染等)die away(声音、风、光等)慢慢变弱,渐渐消失die do
7、wn(兴奋、火等)渐弱,渐息,平息die off(家庭、种族等 )相继死亡,(草木)先后枯死be dying for 渴望be dying to do sth.很想做某事;渴望做某事As the sound of the music died away,the film came to an end.随着音乐声渐渐消失,电影结束了。The apple trees in the field are all dying off from disease.地里的苹果树一棵接一棵地病死了。用适当的介词填空No one knows for sure why dinosaurs died The leav
8、es of the tree are dying His mother died heart disease while his father died a traffic accident.【答案】 out off of;from3hunt vt.& vi.打猎;猎取;搜寻too much hunting in the 1950s (P25)二十世纪五十年代的过度捕杀At one time man had to hunt to survive.从前人类要以打猎为生。Weve been hunting for the car keys for the last halfhour.过去的半小时里
9、,我们一直在找汽车钥匙。hunt for sth.搜索;寻找某物hunt sp.for sb./sth.搜索某地寻找某人/物hunt after 追逐,追求hunt down 追捕,缉拿hunt out 搜寻,寻找go hunting 去打猎Many people hunt after fame in their lives but never find it.很多人一生追逐名誉,但是总不能成功。Hes on holiday in Africa,hunting for animals.他正在非洲度假打猎呢。完成句子他一直在找工作。He has been a job.他们搜遍树林寻找从动物园里逃
10、出来的狮子。They the wood the lion escaping from the zoo.【答案】 hunting for hunted;for4in danger(of)在危险中;垂危Why are they in danger of disappearing?(P 25)为什么它们面临灭绝的危险?You all know he will be in danger if he drives after being drunk.你们都知道,如果他酒后驾车会有危险的。He is in danger of losing his job if he goes on like this.他
11、再这样下去会丢掉工作的。out of danger 脱离危险be a danger to sb./sth.对某人/某物是个威胁 dangerous adj.危险的(指事物或人对别人有危险 )endanger vt. 危害;危及endangered adj. 有危险的;濒临灭绝的【语境促记】The girl is in danger because the tiger is dangerous.He is a dangerous person;keep away from him.他是个危险人物,不要接近他。The wounded policeman is now out of danger.受
12、伤的警察已脱离危险。根据语境填入与 danger 有关的词或短语海上的冰开始融化,对过往的船只带来很大的危险。船长范玉森利用他的拖船使陷入险境的船脱离险境,并清理航线使其不再那么危险。The sea ice begins to melt,which is a to the passing boats.Captain Fan Yusen with his tug boat will help those and also clear the sailing path,which will be no longer 【答案】 danger ;in danger;dangerous5respond
13、vi. 回答;响应;做出反应Daisy responded immediately.“Id like to see some endangered wildlife, ”she said.(P26)戴茜马上回答,她说:“我想去看看一些濒临灭绝的野生动植物。 ”I asked her what the time was,but she didnt respond.我问她几点了,但她没回答。respond to.回应;对做出反应respond by doing sth.以某种方式回应response n响应;回答in response to 作为对的答复/反应( 通常作状语)He always r
14、esponds to my questions without any patience.他总是很不耐烦地回答我的问题。In spite of hearing the question,he made no response to it.尽管听到了这个问题,他没有做出回应。完成句子她收到我的信,给我回了个电话。She my letter with a phone call.这种产品是为了满足顾客的需要而开发的。The product was developed customers demand.【答案】 responded to in response to6 “Please take me
15、to a distant land where I can find the animal that gave fur to make this sweater.”(P26)“请把我带到遥远的地方,在那里我能找到提供毛绒来做这件毛衣的那种动物。 ”where 引导的是一个定语从句,修饰 land。在这个定语从句中,还有一个 that引导的定语从句,修饰 animal。Is this the place where they went hunting last week?这是他们上周打猎的地方吗?Have you ever been to Qingdao,where there are beau
16、tiful beaches?你去过青岛吗?那里有美丽的沙滩。,x(aal(where 可引导三大从句:,where 可引导,的从句)状语从句,(where ,作连词) 定 语 从 句(where作关 系 副 词 )名 词 性 从 句(where作 连接 副 词 )Sit where I can see you.坐在我能看到你的地方。This is where she lives.这就是她的住处。【提示】 如果先行词是地点,但关系词在定语从句中不作地点状语,而是作主语或宾语,则要用关系代词 which 或 that。【对接高考】(2013北京高考 )Many countries are now
17、setting up national parks animals and plants can be protected.Awhen B whichCwhose D where【解析】 考查定语从句。定语从句中不缺少主干成分,故使用关系副词;先行词指地点,故选 where。【答案】 D判断下列句子中 where 引导何种从句This is the place where I was born. Where there is a will,there is a way. Lets start from where we stopped yesterday.【答案】 定语从句 状语从句 宾语从句
18、7relief n(痛苦或忧虑的)减轻或解除;减轻痛苦的事物;缓解;宽慰In relief Daisy burst into laughter.(P26)戴茜如释重负,突然笑了起来。It was a relief to be able to talk to someone about it.能和别人谈谈这件事,感到舒心多了。relief of/from 的减轻/消除in relief 如释重负;松了口气to ones relief 令人感到欣慰的是relieve vt.减轻;缓解;消除relieve sb.of sth.帮某人减轻(负担)relieved adj .宽慰的;不再忧虑的Heari
19、ng the news,he breathed in relief.听到这个消息,他如释重负地松了口气。To our relief,they all got home safely.他们都安全地到家了,让我们松了口气。Let me relieve you of some of your bags.让我帮你拿几个袋子吧。【对接高考】(2012江苏高考 )Dont worry,Mum.The doctor said it was only the flu. !Ill tell Dad theres nothing serious.AWhat a relief B CongratulationsCH
20、ow surprising D Im so sorry【解析】 句意:别担心,妈妈。医生说这只是流感。这下放心了!我要告诉爸爸没有什么严重的。A 项表示“这下放心了 ”;B 项表示“恭喜,祝贺”;C 项表示 “太惊讶了” ;D 项表示“我很抱歉或我很难过 ”。【答案】 A完成句子Seeing the baby fall asleep,the young mother (宽慰地笑了)令我们宽慰的是,这种疾病并没有像预计的那样突然发生。,the disease didnt burst out as expected.【答案】 smiled in relief To our relief8mercy
21、 n仁慈;宽恕;怜悯;幸运Farmers hunted us without mercy.(P26)农民毫不留情地捕杀我们。Its a mercy she wasnt seriously hurt.很幸运她伤得不重。show mercy to 怜悯某人have mercy on 对表示怜悯at the mercy of 任凭的摆布;在的支配中without mercy 残忍地,毫无同情心地merciful adj .仁慈的;宽大的We had no choice and had to be at the mercy of the sea.我们别无选择,只好受大海的摆布。The kind man
22、 showed mercy to the child who is homeless.这个好心人对这个无家可归的孩子表示怜悯。They had mercy on their neighbor for he suffered a lot.他们对他们的邻居表示同情,他受的苦难太多了。在下列各句中填入恰当的动词或介词He mercy to the people in trouble.They little mercy on their enemy.The cruel boss usually treats his workers mercy.The little boat was the mercy of the storm at the sea.【答案】 showed had without at9certain adj.确定的;某一;一定