Unit 5单词讲义extinction词性：名词中文意思：灭绝，消亡英文释义：the act or process of dying out; the state of being extinct词源：来自拉丁语的"extinctio"，意为"熄灭"或"消灭"例句：The extinction of the dinosaurs is believed to have been caused by a meteor impact.固定搭配：bring about extinction, risk extinction, species extinction近义词：demise, disappearance, terminationwhale词性：名词中文意思：鲸鱼英文释义：a large marine mammal that has a streamlined body and flippers and breathes air through a blowhole on top of its head词源：来自古英语的"wægl"，意为"大动物"例句：We went on a whale watching tour and saw several humpback whales.固定搭配：killer whale, sperm whale, blue whale近义词：cetacean, sea monsterpower词性：名词/动词中文意思：力量，能力；权力，控制；电力，动力英文释义：1) the ability to do something or act in a particular way 2) control or influence over others 3) the ability to produce an effect or cause change词源：来自古英语的"pōwer"，意为"能力，力量"例句：She has the power to make decisions for the pany. (名词) He powered his car with electricity. (动词)固定搭配：power plant, power grid, power struggle近义词：strength, authority, forcefemale词性：形容词/名词中文意思：女性的，雌性的；女性，雌兽英文释义：1) relating to or characteristic of women or girls 2) the sex that produces eggs or gives birth to young animals词源：来自拉丁语的"femina"，意为"女人"例句：The female employee was promoted to manager. (形容词) The female lion is the hunter in the pride. (名词)固定搭配：female role model, female reproductive system, female empowerment近义词：feminine, womanly, female genderdiffer词性：动词中文意思：不同，相异；区分，辨别英文释义：to be unlike in nature, character, or quality; to distinguish or recognize as different词源：来自拉丁语的"differre"，意为"分开，分散"例句：Our opinions on this matter differ greatly. They differ in their approach to problemsolving. specific词性：形容词中文意思：特定的，明确的，详细的英文释义：relating to one thing, person or group and not others; exact or precise词源：来自拉丁语的"specificus"，意为"指定的" 或"明确的"例句：Can you give me a specific example?固定搭配：specific details, specific purpose, specific requirements近义词：particular, exact, precisematriarch词性：名词中文意思：女族长，女性家长英文释义：a female head of a family or tribe词源：来自希腊语的"matriarchēs"，意为"女族长"例句：The matriarch of the family is the oldest living female relative.固定搭配：matriarchal society, matriarchal lineage, matriarchal culture近义词：patriarch, leader, headlocation词性：名词中文意思：位置，地点英文释义：the place where something is or may be found词源：来自拉丁语的"locatio"，意为"定位" 或"放置"例句：The location of the hotel is perfect for sightseeing.固定搭配：location scouting, event location, business location近义词：place, spot, siteprevious词性：形容词/副词中文意思：以前的，早先的，上一个的英文释义：happening or existing before now; ing before in time or order词源：来自拉丁语的"praevius"，意为"先前的" 或"前面的"例句：I have a meeting at 2 pm, so I can't meet you at the previous time.固定搭配：previous experience, previous owner, previous engagement近义词：former, earlier, priorfascinating词性：形容词中文意思：迷人的，吸引人的，令人着迷的英文释义：very interesting and holding your attention pletely词源：来自拉丁语的"fascinare"，意为"吸引住" 或"使入迷"例句：The museum has a fascinating collection of ancient artifacts.固定搭配：fascinating story, fascinating personality, fascinating view近义词：captivating, enchanting, alluringtusk：词性：名词中文意思：象牙，长牙英文释义：a long pointed tooth, especially one of the two ivory ones that elephants have in their mouths词源：来自古英语的tusse，意为“牙齿”例句：The hunter aimed his gun at the tusk of the elephant.固定搭配：tusk of an elephant（大象的长牙）近义词：tusk, toothivory：词性：名词中文意思：象牙，乳白色，象牙制品英文释义：the hard white substance that forms the tusks of elephants and other animals, or a material made from this, used for making ornaments, etc.词源：来自拉丁语的ebur，意为“象牙”例句：She wore a necklace made of ivory.固定搭配：ivory tower（象牙塔，指与现实社会脱离的理想境界）近义词：tusk, ivorycoloreddecoration：词性：名词中文意思：装饰，装潢，奖章英文释义：something that is done to make something more attractive or enjoyable, or a prize given for doing something good词源：来自拉丁语的decorare，意为“装饰”例句：The room was decorated with flowers.固定搭配：Christmas decorations（圣诞装饰）近义词：ornament, embellishmentdinosaur：词性：名词中文意思：恐龙，过时的东西英文释义：a large extinct reptile with a long tail and scaly skin, or something that is no longer used because it is oldfashioned词源：来自希腊语deinos（可怕的）和sauros（蜥蜴），意为“可怕的蜥蜴”例句：The museum has a collection of dinosaur bones.固定搭配：dinosaur egg（恐龙蛋）近义词：extinct reptile, outdated thingdolphin：词性：名词中文意思：海豚，江豚英文释义：a sea mammal with a long snout and flippers, that lives in water and eats fish and small animals词源：来自希腊语delphis，意为“海豚”例句：We saw a group of dolphins playing in the ocean.固定搭配：dolphin show（海豚表演）近义词：sea mammalclick词性：动词中文意思：点击，发出咔哒声英文释义：to press a button or switch quickly and lightly词源：来自中古英语的"cliken"，意为“咔哒声”例句：I clicked on the link to open the website.固定搭配：click away, click through, click here近义词：press, tap, touchbounce词性：动词中文意思：弹起，反弹英文释义：to spring back after hitting something or being dropped词源：来自古英语的"buncan"，意为“弹起”例句：The ball bounced off the wall and hit me in the face.固定搭配：bounce back, bounce off, bounce along近义词：spring, rebound, recoilhabitat词性：名词中文意思：栖息地，生活环境英文释义：an environment in which an animal or plant naturally lives词源：来自拉丁语的"habitātiō"，意为“居住”例句：The panda's natural habitat is the bamboo forest.固定搭配：natural habitat, human habitat, wildlife habitat近义词：environment, dwelling place, homedestroy词性：动词中文意思：破坏，摧毁英文释义：to damage so badly that it cannot be repaired or used again词源：来自古法语的"destrever"，意为“破坏”例句：The fire destroyed the entire building.固定搭配：destroy pletely, destroy evidence, destroy hope近义词：demolish, ruin, wrecknowhere词性：副词中文意思：无处，哪里都不英文释义：in no place; not anywhere词源：来自中古英语的"naught hwere"，意为“无地方”例句：I looked everywhere for my keys, but they were nowhere to be found.固定搭配：get nowhere, nowhere near, nowhere fast近义词：no place, not anywhere, nowhere at allnegative词性：形容词中文意思：否定的，消极的，负的英文释义：expressing the absence of something or the opposite of something 词源：来自拉丁语negare（否认）例句：The doctor gave me a negative answer.固定搭配：negative effect, negative attitude, negative feedback近义词：denying, disapproving, unfavorableaware词性：形容词中文意思：意识到的，知道的英文释义：having knowledge or perception of a fact or situation词源：来自古英语gewærian（知道）例句：I am aware of the risks involved.固定搭配：be aware of, be aware that, bee aware近义词：conscious, cognizant, informedoption词性：名词中文意思：选择，选项英文释义：a thing that may be chosen or done词源：来自拉丁语optio（选择）例句：You have the option to choose between two plans.固定搭配：have no option but to, exercise one's option, optional course近义词：choice, selection, alternativemate词性：名词/动词中文意思：伙伴，配偶，匹配英文释义：a person with whom one has a romantic relationship or marriage; to match or couple together词源：来自古英语mǣtan（匹配）例句：He is my mate on this project. / They are mates since childhood.固定搭配：make a mate, mate for life, mate choice近义词：partner, spouse, panioncattle词性：名词中文意思：牛，牲畜英文释义：domesticated bovine animals kept by farmers for their milk, meat, and hides词源：来自拉丁语vitulus（小牛）例句：The cattle were grazing in the field.固定搭配：cattle farm, cattle market, beef cattle近义词：cows, livestock, bovinesdistance词性：名词中文意思：距离，间距英文释义：the amount of space between two things or people词源：来自拉丁语“distans”，意为“远的”例句：The distance between the two cities is about 200 miles.固定搭配：keep a distance, short distance, long distance, within distance 近义词：space, interval, range, spannarrow词性：形容词中文意思：狭窄的，狭隘的英文释义：not wide; small in size or extent词源：来自古英语“nærwe”，意为“窄的”例句：The road became narrower as we drove further into the mountains.固定搭配：narrow escape, narrow minded, narrow victory, narrow down 近义词：slim, thin, tight, limitedape词性：名词中文意思：猿，类人猿英文释义：a large monkey with no tail and hair all over its body词源：来自拉丁语“simia”，意为“猴子”例句：The ape climbed up the tree to get some fruit.固定搭配：ape behavior, go ape, ape out, ape man近义词：monkey, primate, hominid, humanoidinnate词性：形容词中文意思：天生的，固有的英文释义：existing in someone from birth; natural词源：来自拉丁语“innatus”，意为“天生的”例句：Some skills are innate and cannot be learned.固定搭配：innate ability, innate talent, innate characteristics, innate curiosity近义词：natural, inherent, intrinsic, nativegiant词性：名词/形容词中文意思：巨大的，巨人般的英文释义：very large; a mythical creature with great strength词源：来自希腊语“gigans”，意为“巨大的”例句：The giant redwood trees tower above us. (名词) The pany is a giant in the technology industry. (形容词)length：词性：名词中文意思：长度，长英文释义：The measurement of how long something is.词源：来自古英语leng（长）和th（定冠词）。
Unit 5 A Revision of Dinosaurs教学设计-新派英语课标版二年级英语下册教学目标一、语言知识目标：1. 学习掌握重点词汇。
2. 学习运用重点句型。
3. 学会使用一般过去时和掌握规则动词和不规则动词的过去式变化规则。
掌握形容词变比较级的规则并加以运用。
学生能深谙各种恐龙的特征和生活习性。
二、语言技能目标：1.学生能根据不同恐龙的样貌特征而分辨恐龙，给出其名称。
2. 学生能正确运用一般过去时和动词过去式来描述恐龙的特征和生活习性。
3. 学生能根据所给信息进行比较，从而正确运用形容词比较级。
4. 学生能够根据听力内容提取信息，提高其听力理解能力。
5. 学生能够在教师的引导下运用所学语言探讨环保问题，并能自如地阐述自己的观点。
6. 学生在教师的引导下注意模仿语音、语调，以培养其正确的语感。
三、学习策略目标：1. 主动与同伴合作交流，共同完成学习任务。
2. 培养学生自主学习和独立思考。
四、情感态度目标：1. 通过儿歌、故事、游戏等学生喜欢的活动，激发和培养学生学习英语的兴趣。
2. 通过不同的任务活动培养学生主动参与、乐于合作、交流的态度，增强学生学习英语的自信心。
3. 培养学生爱护动物、保护动物和爱护环境的意识。
五、文化意识目标：让学生了解物种的起源，生物的进化以及生态环境的变化。
学情分析四年级学生在思想方面已经慢慢趋于成熟，有自己的观点和想法，他们对什么都感兴趣，可又缺乏自控能力，兴趣不持久。
所以在教学设计过程中就要考虑如何持久地吸引住孩子的注意力，使其始终保持极大的兴趣和热情。
在知识方面，学生已经对课本上出现的四种主要恐龙的名称、特征和生活习性等有了总体认知；而一般过去时和动词的过去式也已经学习过，大部分学生能基本掌握；比较难的是形容词比较级的正确运用。
在认知程度上，学生的接受能力差距较大，两极分化日趋明显，所以在教学设计过程中要让不同层次的学生学有所得。
重点难点教学过程【导入】Sing a song1. 通过师生间的问候, 引出Dinosaur这一复习主题，并演唱歌曲Dinosaurs。
