1、高中英语新人教必修2教学课件目标分析+方案设计+自主导学Unit4PeriodPeriod II Warming Up & Reading(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。救罗
2、方案设计设敎秦漁程细解导”学案”教案设计区1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）教学流程老师检査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。让学生完成“自我评估”（学案第52 页）。布置作业。让学生完成课本第28 页第1、2、3题，“课时作业”和预 习Period
3、皿（见学案第53页）。演示结束I归纳拓展I1on 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The price of wheat has decreased by 15 % 小麦价格降低了 15% oThe mistakes he has made are on the decrease.他犯的错误正在减少。即的应用介词填空 There has been some decrease trafficaccidents this year.2The club memb
4、ers decreased two hundredcompared with last year.3The housing price is hoped to decrease 10% this year.4To our delight, varieties of birds in the forest are the increase.【答案】 intoby on2. die out灭亡；逐渐消失As a result these endangered animals may even dieOllt(P25)结果濒危动物甚至可能要灭绝oThis kind of bird is dying
5、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。L归纳拓展Idie of因 而死（一般指死于内因，如疾病、饥饿、情感原因等） 污染等）die away（声音、风、光等）慢慢变弱，渐渐消失 die down（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 anThe apple trees in the
6、field are all dying off from disease. 地里的苹果树一棵接一棵地病死了。即的应用 I OrMI j用适当的介词填空1No one knows for sure why dinosaurs died .2The leaves of the tree are dying .3His mother died heart disease while hisfather died a traffic accident3. hunt vt.&vi打猎；猎取;搜寻too much hunting in the 1950s (P2s)二十世纪五十年代的过度捕杀At one
7、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 half hoim过去的半小时里，我们一直在找汽车钥匙。I归纳拓展Ihunt 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 mid it.很多人一生追逐名誉，但是
8、总不能成功。Hes on holiday in Africa, hunting for animals.他正在非洲度假打猎呢。即时应用完成句子 他一直在找工作oa job.He has been他们搜遍树林寻找从动物园里逃出来的狮子。4. in danger(of)在危险中；垂危Why are they in danger of disappearing ? (P2s)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 dmmk你们都知道，如果他酒后驾车会有危险的。He is in danger of
9、losing his job if he goes on like this. 他再这样下去会丢掉工作的。I归纳拓展 out of danger脱离危险be a danger to sb/sth对某人/某物是个威胁 dangerous 危险的（指事物或人对别人有危险）3endanger vt.危害；危及4endangered adj.有危险的；濒临灭绝的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 woun
10、ded policeman is now out of danger. 受伤的警察已脱离危险。即时应用根据语境填入与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 thepassing boats.Captain Fan Yusen with his tug boat will helpthose and also clear the sailing path, whichwill be no longer .【
11、答案 】 danger ； in danger ； dangerous5. respond vi.H答；响应；做出反应Daisy responded immediately. rd 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。I归纳拓展I-;对 做出反应respond to回应 respond by doing sth以某种方式回应resp
12、onse n.响应；回答in response to作为对的答复/反应（通常作状语）He always responds 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.尽管咗到了这个问题,他 没有做出回应。卜即的应用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OcustomersfThe product was develo
13、peddemand.【答案】 responded to in response to6. “Please take me 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；这祚毛表的那种动物。” ：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animaloIs this the place where they went hunting last week?这
14、是他们上周打猎的地方吗？ ：Have you ever been to Qingdao, whereI归纳拓展where可引导三大从句：where可引导的从句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 thato【对接高考】（2013*北京高考）Many countries are now setting upnational parks animals and plants can beprotect
15、ed.A. when B. whichC. whose 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whereo【答案】D即时应用 判断下列句子中where引导何种从句1This is the place where I was born. 2Where there is a will, there is a way. 3Lets start from where we stopped yesterday.【答案】 定语从句 状语从句 宾语从句7. relief n.(痛苦或忧虑的)减轻或解除; 减轻痛苦的事物；缓解；宽慰In relie
16、f 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。I归纳拓展Irelief o BD Bl Ey JS 、 y (用contain/include的适当形式填空1She couldnt herself.2The book 50 stories, 15 shortstories.【答案】 contain contains ； includingaffect vt.影响；感动；侵袭The children were deeply affected by his life story. 孩子们被他的人生故事深深感动了。The condition affects one in five women.每五个妇女就有一个患有这种病OAs is known to us, smoking has a bad effect on our health.
