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【高教版】中職數(shù)學(xué)拓展模塊：2.3《拋物線》教學(xué)設(shè)計(jì)
一、教學(xué)目標(biāo)(一)知識教育點(diǎn)使學(xué)生掌握拋物線的定義、拋物線的標(biāo)準(zhǔn)方程及其推導(dǎo)過程．(二)能力訓(xùn)練點(diǎn)要求學(xué)生進(jìn)一步熟練掌握解析幾何的基本思想方法，提高分析、對比、概括、轉(zhuǎn)化等方面的能力．(三)學(xué)科滲透點(diǎn)通過一個簡單實(shí)驗(yàn)引入拋物線的定義，可以對學(xué)生進(jìn)行理論來源于實(shí)踐的辯證唯物主義思想教育．二、教材分析1．重點(diǎn)：拋物線的定義和標(biāo)準(zhǔn)方程．2．難點(diǎn)：拋物線的標(biāo)準(zhǔn)方程的推導(dǎo)．三、活動設(shè)計(jì)提問、回顧、實(shí)驗(yàn)、講解、板演、歸納表格．四、教學(xué)過程(一)導(dǎo)出課題我們已學(xué)習(xí)了圓、橢圓、雙曲線三種圓錐曲線．今天我們將學(xué)習(xí)第四種圓錐曲線——拋物線，以及它的定義和標(biāo)準(zhǔn)方程．課題是“拋物線及其標(biāo)準(zhǔn)方程”．首先，利用籃球和排球的運(yùn)動軌跡給出拋物線的實(shí)際意義，再利用太陽灶和拋物線型的橋說明拋物線的實(shí)際用途。
【高教版】中職數(shù)學(xué)拓展模塊：3.5《正態(tài)分布》教學(xué)設(shè)計(jì)
教學(xué)目的：理解并熟練掌握正態(tài)分布的密度函數(shù)、分布函數(shù)、數(shù)字特征及線性性質(zhì)。教學(xué)重點(diǎn)：正態(tài)分布的密度函數(shù)和分布函數(shù)。教學(xué)難點(diǎn)：正態(tài)分布密度曲線的特征及正態(tài)分布的線性性質(zhì)。教學(xué)學(xué)時：2學(xué)時教學(xué)過程:第四章 正態(tài)分布§4.1 正態(tài)分布的概率密度與分布函數(shù)在討論正態(tài)分布之前，我們先計(jì)算積分。首先計(jì)算。因?yàn)?利用極坐標(biāo)計(jì)算)所以。記，則利用定積分的換元法有因?yàn)?，所以它可以作為某個連續(xù)隨機(jī)變量的概率密度函數(shù)。定義 如果連續(xù)隨機(jī)變量的概率密度為則稱隨機(jī)變量服從正態(tài)分布,記作,其中是正態(tài)分布的參數(shù)。正態(tài)分布也稱為高斯（Gauss）分布。
【高教版】中職數(shù)學(xué)拓展模塊：2.2《雙曲線》教學(xué)設(shè)計(jì)
教學(xué)準(zhǔn)備 1. 教學(xué)目標(biāo) 知識與技能掌握雙曲線的定義，掌握雙曲線的四種標(biāo)準(zhǔn)方程形式及其對應(yīng)的焦點(diǎn)、準(zhǔn)線．過程與方法掌握對雙曲線標(biāo)準(zhǔn)方程的推導(dǎo)，進(jìn)一步理解求曲線方程的方法——坐標(biāo)法．通過本節(jié)課的學(xué)習(xí)，提高學(xué)生觀察、類比、分析和概括的能力．情感、態(tài)度與價值觀通過本節(jié)的學(xué)習(xí)，體驗(yàn)研究解析幾何的基本思想，感受圓錐曲線在刻畫現(xiàn)實(shí)和解決實(shí)際問題中的作用，進(jìn)一步體會數(shù)形結(jié)合的思想．2. 教學(xué)重點(diǎn)/難點(diǎn) 教學(xué)重點(diǎn)雙曲線的定義及焦點(diǎn)及雙曲線標(biāo)準(zhǔn)方程．教學(xué)難點(diǎn)在推導(dǎo)雙曲線標(biāo)準(zhǔn)方程的過程中，如何選擇適當(dāng)?shù)淖鴺?biāo)系． 3. 教學(xué)用具 多媒體4. 標(biāo)簽
高教版中職數(shù)學(xué)基礎(chǔ)模塊下冊：8.4《圓》教學(xué)設(shè)計(jì)
教 學(xué) 過 程教師 行為學(xué)生 行為教學(xué) 意圖時間 *揭示課題 8．4 圓（二） *創(chuàng)設(shè)情境 興趣導(dǎo)入 【知識回顧】 我們知道，平面內(nèi)直線與圓的位置關(guān)系有三種（如圖8-21）： （1）相離：無交點(diǎn)； （2）相切：僅有一個交點(diǎn)； （3）相交：有兩個交點(diǎn)． 并且知道，直線與圓的位置關(guān)系，可以由圓心到直線的距離d與半徑r的關(guān)系來判別（如圖8-22）： （1）：直線與圓相離； （2）：直線與圓相切； （3）：直線與圓相交. 介紹 講解 說明 質(zhì)疑 引導(dǎo) 分析 了解 思考 思考 帶領(lǐng) 學(xué)生 分析 啟發(fā) 學(xué)生思考 0 15*動腦思考 探索新知 【新知識】 設(shè)圓的標(biāo)準(zhǔn)方程為 ， 則圓心C(a，b)到直線的距離為 ． 比較d與r的大小，就可以判斷直線與圓的位置關(guān)系． 講解 說明 引領(lǐng) 分析 思考 理解 帶領(lǐng) 學(xué)生 分析 30*鞏固知識 典型例題 【知識鞏固】 例6 判斷下列各直線與圓的位置關(guān)系： ⑴直線, 圓； ⑵直線,圓． 解 ⑴ 由方程知，圓C的半徑，圓心為． 圓心C到直線的距離為 , 由于，故直線與圓相交． ⑵ 將方程化成圓的標(biāo)準(zhǔn)方程，得 ． 因此，圓心為，半徑．圓心C到直線的距離為 , 即由于，所以直線與圓相交． 【想一想】 你是否可以找到判斷直線與圓的位置關(guān)系的其他方法？ *例7 過點(diǎn)作圓的切線，試求切線方程． 分析 求切線方程的關(guān)鍵是求出切線的斜率．可以利用原點(diǎn)到切線的距離等于半徑的條件來確定． 解 設(shè)所求切線的斜率為，則切線方程為 ， 即 ． 圓的標(biāo)準(zhǔn)方程為 ， 所以圓心，半徑． 圖8－23 圓心到切線的距離為 ， 由于圓心到切線的距離與半徑相等，所以 ， 解得 ． 故所求切線方程（如圖8-23）為 ， 即 或． 說明 例題7中所使用的方法是待定系數(shù)法，在利用代數(shù)方法研究幾何問題中有著廣泛的應(yīng)用． 【想一想】 能否利用“切線垂直于過切點(diǎn)的半徑”的幾何性質(zhì)求出切線方程？ 說明 強(qiáng)調(diào) 引領(lǐng) 講解 說明 引領(lǐng) 講解 說明 觀察 思考 主動 求解 思考 主動 求解 通過例題進(jìn)一步領(lǐng)會 注意 觀察 學(xué)生 是否 理解 知識 點(diǎn) 50
【高教版】中職數(shù)學(xué)拓展模塊：2.1《橢圓》優(yōu)秀教學(xué)設(shè)計(jì)
本人所教的兩個班級學(xué)生普遍存在著數(shù)學(xué)科基礎(chǔ)知識較為薄弱，計(jì)算能力較差，綜合能力不強(qiáng)，對數(shù)學(xué)學(xué)習(xí)有一定的困難。在課堂上的主體作用的體現(xiàn)不是太充分，但是他們能意識到自己的不足，對數(shù)學(xué)課的學(xué)習(xí)興趣高，積極性強(qiáng)。 學(xué)生在學(xué)習(xí)交往上表現(xiàn)為個別化學(xué)習(xí)，課堂上較為依賴?yán)蠋煹囊龑?dǎo)。學(xué)生的群體性小組交流能力與協(xié)同討論學(xué)習(xí)的能力不強(qiáng)，對學(xué)習(xí)資源和知識信息的獲取、加工、處理和綜合的能力較低。在教學(xué)中盡量分析細(xì)致，減少跨度較大的環(huán)節(jié)，對重要的推導(dǎo)過程采用板書方式逐步進(jìn)行，力求讓絕大多數(shù)學(xué)生接受。 1.理解橢圓標(biāo)準(zhǔn)方程的推導(dǎo)；掌握橢圓的標(biāo)準(zhǔn)方程；會根據(jù)條件求橢圓的標(biāo)準(zhǔn)方程，會根據(jù)橢圓的標(biāo)準(zhǔn)方程求焦點(diǎn)坐標(biāo). 2.通過橢圓圖形的研究和標(biāo)準(zhǔn)方程的討論，使學(xué)生掌握橢圓的幾何性質(zhì)，能正確地畫出橢圓的圖形，并了解橢圓的一些實(shí)際應(yīng)用。 1.讓學(xué)生經(jīng)歷橢圓標(biāo)準(zhǔn)方程的推導(dǎo)過程，進(jìn)一步掌握求曲線方程的一般方法，體會數(shù)形結(jié)合等數(shù)學(xué)思想；培養(yǎng)學(xué)生運(yùn)用類比、聯(lián)想等方法提出問題. 2.培養(yǎng)學(xué)生運(yùn)用數(shù)形結(jié)合的思想，進(jìn)一步掌握利用方程研究曲線的基本方法，通過與橢圓幾何性質(zhì)的對比來提高學(xué)生聯(lián)想、類比、歸納的能力，解決一些實(shí)際問題。 1.通過具體的情境感知研究橢圓標(biāo)準(zhǔn)方程的必要性和實(shí)際意義；體會數(shù)學(xué)的對稱美、簡潔美，培養(yǎng)學(xué)生的審美情趣，形成學(xué)習(xí)數(shù)學(xué)知識的積極態(tài)度. 2.進(jìn)一步理解并掌握代數(shù)知識在解析幾何運(yùn)算中的作用，提高解方程組和計(jì)算能力，通過“數(shù)”研究“形”，說明“數(shù)”與“形”存在矛盾的統(tǒng)一體中，通過“數(shù)”的變化研究“形”的本質(zhì)。幫助學(xué)生建立勇于探索創(chuàng)新的精神和克服困難的信心。
感受可能性教案教學(xué)設(shè)計(jì)
（一）、創(chuàng)設(shè)情景,導(dǎo)入新課摸牌游戲：三位同學(xué)持三組牌，指定三位同學(xué)分別任意摸出一張,看誰能摸到紅牌，他們一定能摸到紅牌嗎?請手持牌的同學(xué)根據(jù)自已手中牌的情況，用語言描述一下抽出紅牌的情況。總結(jié)：在一定條件下，有些事情我們事先能肯定它一定發(fā)生，這些事情成為 事件。有些事情我們事先能肯定它一定不會發(fā)生，這些事情稱為 事件。 事件和 事件統(tǒng)稱為確定事件。許多事情我們事先無法肯定它會不會發(fā)生，這些事情稱為 事件，也稱為 事件。
反比例函數(shù)教案教學(xué)設(shè)計(jì)
本節(jié)的內(nèi)容主要是反比例函數(shù)的概念教學(xué).反比例函數(shù)概念的建立，不能從形式上進(jìn)行簡單的抽象與概括，而是對這些實(shí)例從不同角度抽象出本質(zhì)屬性后，再進(jìn)行概括。教材設(shè)計(jì)的基本思路是從現(xiàn)實(shí)生活中大量的反比例關(guān)系中抽象出反比例函數(shù)概念，讓學(xué)生進(jìn)一步感受函數(shù)是反映現(xiàn)實(shí)世界中變量關(guān)系的一種有效數(shù)學(xué)模型，逐步從對具體反比例函數(shù)的感性認(rèn)識上升到對抽象的反比例函數(shù)概念的理性認(rèn)識. 同時本節(jié)的學(xué)習(xí)內(nèi)容，直接關(guān)系到本章后續(xù)內(nèi)容的學(xué)習(xí)，也是繼續(xù)學(xué)習(xí)其它各類函數(shù)的基礎(chǔ)，其中蘊(yùn)涵的類比、歸納、對應(yīng)和函數(shù)的數(shù)學(xué)思想方法，對學(xué)生今后研究問題、解決問題以及終身的發(fā)展都是非常有益的.基于以上分析，本節(jié)教學(xué)設(shè)計(jì)是建立在一個個數(shù)學(xué)活動的基礎(chǔ)上，經(jīng)過對情境理解、本質(zhì)抽象的積累而形成的.讓學(xué)生對一類問題情境中兩個變量間的關(guān)系，在充分經(jīng)歷寫表達(dá)式，計(jì)算函數(shù)值和觀察函數(shù)值隨自變量變化規(guī)律的過程中，逐步概括形成反比例函數(shù)的概念.針對教學(xué)實(shí)際，我選取了貼學(xué)生現(xiàn)實(shí)的，有價值的實(shí)例“文具店里買學(xué)習(xí)用品”和“剪面積為定值的長方形紙片”等作為問題情境.
有理數(shù)復(fù)習(xí)教案教學(xué)設(shè)計(jì)
3）乘除運(yùn)算①有理數(shù)的乘法法則：（老師給出，學(xué)生一起朗讀）1. 兩數(shù)相乘，同號得正，異號得負(fù)，并把絕對值相乘；2. 任何數(shù)與零相乘都得零；3. 幾個不等于零的數(shù)相乘，積的符號由負(fù)因數(shù)的個數(shù)決定，當(dāng)負(fù)因數(shù)有奇數(shù)個數(shù)，積為負(fù)；當(dāng)負(fù)因數(shù)的個數(shù)為偶數(shù)個時，積為正；4. 幾個有理數(shù)相乘，若其中有一個為零，積就為零。②有理數(shù)的除法法則：（老師提問，學(xué)生回答）1. 兩個有理數(shù)相除，同號得正，異號得負(fù)，并把絕對值相除；2. 除以一個數(shù)等于乘以這個數(shù)的倒數(shù)。③關(guān)系（老師給出）除法轉(zhuǎn)化為乘法進(jìn)行運(yùn)算。
數(shù)據(jù)的整理教案教學(xué)設(shè)計(jì)
一、課前準(zhǔn)備師：同學(xué)們想一想，你同父母一起去商店買衣服時，衣服上的號碼都有哪些，標(biāo)志是什么？學(xué)生：我看到有些衣服上標(biāo)有M、S、L、XL、XXL等號碼．但我不清楚代表的具體范圍，適合什么人穿，但肯定與身高、胖瘦有關(guān)．師：這位同學(xué)很善動腦，也愛觀察．S代表最小號，身高在150~155cm的人適合穿S號．M號適合身高在155~160cm的人著裝……廠家做衣服訂尺寸也并不是按所有人的尺寸定做，而是按某個范圍分組批量生產(chǎn)．你覺得這種生產(chǎn)方法有什么優(yōu)點(diǎn)？學(xué)校要為同學(xué)們訂制校服，為此小明調(diào)查了他們班50名同學(xué)的身高，結(jié)果(單位cm)．如下
一元一次方程教案教學(xué)設(shè)計(jì)
1、方程的定義1)像這種用等號“=”來表示相等關(guān)系的式子，叫等式。(老師給出定義。）2)請大家觀察左邊的這些式子，看看它們有什么共同的特征？(老師提出問題。）3）列方程時，要先設(shè)字母表示未知數(shù)，然后根據(jù)問題中的相等關(guān)系，寫出含有未知數(shù)的等式叫做方程。（學(xué)生思考后，老師給出新學(xué)內(nèi)容方程的定義。）4）判斷方程的兩個關(guān)鍵要素： ①有未知數(shù) ②是等式（老師提問，并給出。）
高教版中職數(shù)學(xué)基礎(chǔ)模塊下冊：9.1《平面的基本性質(zhì)》教學(xué)設(shè)計(jì)
課題序號 授課班級 授課課時2授課形式新課授課章節(jié) 名稱§9-1 平面基本性質(zhì)使用教具多媒體課件教學(xué)目的1.了解平面的定義、表示法及特點(diǎn)，會用符號表示點(diǎn)、線、面之間的關(guān)系—基礎(chǔ)模塊 2.了解平面的基本性質(zhì)和推論，會應(yīng)用定理和推論解釋生活中的一些現(xiàn)象—基礎(chǔ)模塊 3.會用斜二測畫法畫立體圖形的直觀圖—基礎(chǔ)模塊 4.培養(yǎng)學(xué)生的空間想象能力教學(xué)重點(diǎn)用適當(dāng)?shù)姆柋硎军c(diǎn)、線、面之間的關(guān)系；會用斜二測畫法畫立體圖形的直觀圖教學(xué)難點(diǎn)從平面幾何向立體幾何的過渡，培養(yǎng)學(xué)生的空間想象能力.更新補(bǔ)充 刪節(jié)內(nèi)容 課外作業(yè) 教學(xué)后記能動手畫，動腦想，但立體幾何的語言及想象能力差
新人教版高中英語選修2Unit 2 Bridging Cultures-Discovering useful structures教學(xué)設(shè)計(jì)
The grammar of this unit is designed to review noun clauses. Sentences that use nouns in a sentence are called noun clauses. Nominal clauses can act as subject, object, predicate, appositive and other components in compound sentences. According to the above-mentioned different grammatical functions, nominal clauses are divided into subject clause, object clause, predicate clause and appositive clause. In this unit, we will review the three kinds of nominal clauses. Appositive clauses are not required to be mastered in the optional compulsory stage, so they are not involved.1. Guide the students to judge the compound sentences and determine the composition of the clauses in the sentence.2. Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.3. Inspire the students to systematize the function and usage of noun clause1.Instruct students to try to learn grammar by generalizing grammar rules, controlling written practice, and semi-open oral output.2.Inspire the students to systematize the function and usage of noun clauseStep1: The teacher ask studetns to find out more nominal clauses from the reading passage and udnerline the nominal clauses.
新人教版高中英語選修2Unit 1 Science and Scientists-Discovering useful structures教學(xué)設(shè)計(jì)
The grammatical structure of this unit is predicative clause. Like object clause and subject clause, predicative clause is one of Nominal Clauses. The leading words of predicative clauses are that, what, how, what, where, as if, because, etc.The design of teaching activities aims to guide students to perceive the structural features of predicative clauses and think about their ideographic functions. Beyond that, students should be guided to use this grammar in the context apporpriately and flexibly.1. Enable the Ss to master the usage of the predicative clauses in this unit.2. Enable the Ss to use the predicative patterns flexibly.3. Train the Ss to apply some skills by doing the relevant exercises.1.Guide students to perceive the structural features of predicative clauses and think about their ideographic functions.2.Strengthen students' ability of using predicative clauses in context, but also cultivate their ability of text analysis and logical reasoning competence.Step1: Underline all the examples in the reading passage, where noun clauses are used as the predicative. Then state their meaning and functions.1) One theory was that bad air caused the disease.2) Another theory was that cholera was caused by an infection from germs in food or water.3) The truth was that the water from the Broad Street had been infected by waste.Sum up the rules of grammar:1. 以上黑體部分在句中作表語。2. 句1、2、3中的that在從句中不作成分，只起連接作用。 Step2: Review the basic components of predicative clauses1.Definition
新人教版高中英語選修2Unit 1 Science and Scientists-Learning about Language教學(xué)設(shè)計(jì)
Step 7: complete the discourse according to the grammar rules.Cholera used to be one of the most 1.__________ (fear) diseases in the world. In the early 19th century, _2_________ an outbreak of cholera hit Europe, millions of people died. But neither its cause, 3__________ its cure was understood. A British doctor, John Snow, wanted to solve the problem and he knew that cholera would not be controlled _4_________ its cause was found. In general, there were two contradictory theories 5 __________ explained how cholera spread. The first suggested that bad air caused the disease. The second was that cholera was caused by an _6_________(infect) from germs in food or water. John Snow thought that the second theory was correct but he needed proof. So when another outbreak of cholera hit London in 1854, he began to investigate. Later, with all the evidence he _7_________ (gather), John Snow was able to announce that the pump water carried cholera germs. Therefore, he had the handle of the pump _8_________ (remove) so that it couldn't be used. Through his intervention，the disease was stopped in its tracks. What is more, John Snow found that some companies sold water from the River Thames that __9__________________ (pollute) by raw waste. The people who drank this water were much more likely _10_________ (get) cholera than those who drank pure or boiled water. Through John Snow's efforts, the _11_________ (threaten) of cholera around the world saw a substantial increase. Keys： 1.feared 2.when 3. nor 4.unless 5.that/which 6.infection 7.had gathered 8.removed 9.was polluted 10.to get 11. threat
新人教版高中英語選修2Unit 1 Science and Scientists-Reading and thinking教學(xué)設(shè)計(jì)
Step 5： After learning the text, discuss with your peers about the following questions:1.John Snow believed Idea 2 was right. How did he finally prove it?2. Do you think John Snow would have solved this problem without the map?3. Cholera is a 19th century disease. What disease do you think is similar to cholera today?SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.keys:1. John Snow finally proved his idea because he found an outbreak that was clearly related to cholera, collected information and was able to tie cases outside the area to the polluted water.2. No. The map helped John Snow organize his ideas. He was able to identify those households that had had many deaths and check their water-drinking habits. He identified those houses that had had no deaths and surveyed their drinking habits. The evidence clearly pointed to the polluted water being the cause.3. SARS and Covid-19 because they are both deadly and fatally infectious, have an unknown cause and need serious public health care to solve them urgently.Step 6: Consolidate what you have learned by filling in the blanks:John Snow was a well-known _1___ in London in the _2__ century. He wanted to find the _3_____ of cholera in order to help people ___4_____ it. In 1854 when a cholera __5__ London, he began to gather information. He ___6__ on a map ___7___ all the dead people had lived and he found that many people who had ___8____ (drink) the dirty water from the __9____ died. So he decided that the polluted water ___10____ cholera. He suggested that the ___11__ of all water supplies should be _12______ and new methods of dealing with ____13___ water be found. Finally, “King Cholera” was __14_____.Keys: 1. doctor 2. 19th 3.cause 4.infected with 5.hit 6.marked 7.where 8.drunk 9.pump 10.carried 11.source 12.examined 13.polluted 14.defeatedHomework: Retell the text after class and preview its language points
新人教版高中英語選修2Unit 1 Science and Scientists-Using langauge教學(xué)設(shè)計(jì)
This happens because the dish soap molecules have a strong negative charge, and the milk molecules have a strong positive charge. Like magnets, these molecules are attracted to each other, and so they appear to move around on the plate, taking the food coloring with them, making it look like the colors are quickly moving to escape from the soap.Listening text:? Judy: Oh, I'm so sorry that you were ill and couldn't come with us on our field trip. How are you feeling now? Better?? Bill: Much better, thanks. But how was it?? Judy: Wonderful! I especially liked an area of the museum called Light Games.it was really cool. They had a hall of mirrors where I could see myself reflected thousands of times!? Bill: A hall of mirrors can be a lot of fun. What else did they have?? Judy: Well, they had an experiment where we looked at a blue screen for a while, and then suddenly we could see tiny bright lights moving around on it. You'll never guess what those bright lights were!? Bill: Come on, tell me!? Judy: They were our own blood cells. For some reason, our eyes play tricks on us when we look at a blue screen, and we can see our own blood cells moving around like little lights! But there was another thing I liked better. I stood in front of a white light, and it cast different shadows of me in every color of the rainbow!? Bill: Oh, I wish I had been there. Tell me more!? Judy: Well, they had another area for sound. They had a giant piano keyboard that you could use your feet to play. But then, instead of playing the sounds of a piano, it played the voices of classical singers! Then they had a giant dish, and when you spoke into it, it reflected the sound back and made it louder. You could use it to speak in a whisper to someone 17 meters away.? Bill: It all sounds so cool. I wish I could have gone with you? Judy: I know, but we can go together this weekend. I'd love to go there again!? Bill: That sounds like a great idea!
新人教版高中英語選修2Unit 3 Food and Culture-Discovering useful structures教學(xué)設(shè)計(jì)
The newspaper reported more than 100 people had been killed in the thunderstorm.報紙報道說有一百多人在暴風(fēng)雨中喪生。(2)before、when、by the time、until、after、once等引導(dǎo)的時間狀語從句的謂語是一般過去時，以及by、before后面接過去的時間時，主句動作發(fā)生在從句的動作或過去的時間之前且表示被動時，要用過去完成時的被動語態(tài)。By the time my brother was 10, he had been sent to Italy.我弟弟10歲前就已經(jīng)被送到意大利了。Tons of rice had been produced by the end of last month. 到上月底已生產(chǎn)了好幾噸大米。(3) It was the first/second/last ... time that ...句中that引導(dǎo)的定語從句中，主語與謂語構(gòu)成被動關(guān)系時，要用過去完成時的被動語態(tài)。It was the first time that I had seen the night fact to face in one and a half years. 這是我一年半以來第一次親眼目睹夜晚的景色。(4)在虛擬語氣中，條件句表示與過去事實(shí)相反，且主語與謂語構(gòu)成被動關(guān)系時，要用過去完成時的被動語態(tài)。If I had been instructed by him earlier, I would have finished the task.如果我早一點(diǎn)得到他的指示，我早就完成這項(xiàng)任務(wù)了。If I had hurried, I wouldn't have missed the train.如果我快點(diǎn)的話，我就不會誤了火車。If you had been at the party, you would have met him. 如果你去了晚會，你就會見到他的。
新人教版高中英語選修2Unit 5 First Aid-Discovering useful structures教學(xué)設(shè)計(jì)
You have no excuse for not going.你沒有理由不去。He was punished for not having finished his homework.他因未完成作業(yè)而受到懲罰。2．動詞ing形式復(fù)合結(jié)構(gòu)由物主代詞或人稱代詞賓格、名詞所有格或普通格加動詞ing，即“sb./sb.'s＋doing”構(gòu)成。動詞ing形式的復(fù)合結(jié)構(gòu)實(shí)際上是給動詞ing形式加了一個邏輯主語。動詞ing形式的復(fù)合結(jié)構(gòu)有四種形式：①形容詞性物主代詞＋動詞ing②名詞所有格＋動詞ing③代詞賓格＋動詞ing④名詞＋動詞ingHer coming to help encouraged all of us.她來幫忙鼓舞了我們所有人。The baby was made awake by the door suddenly shutting.這個嬰兒被突然的關(guān)門聲吵醒了。Can you imagine him/Jack cooking at home?你能想象他/杰克在家做飯的樣子嗎？無生命名詞無論是作主語還是作賓語都不能用第②種形式。Tom's winning first prize last year impressed me a lot.湯姆去年得了一等獎使我印象深刻。Do you mind my/me/Jack's/Jack leaving now?你介意我/杰克現(xiàn)在離開嗎？Excuse me for my not coming on time．很抱歉我沒能按時來。His father's being ill made him worried.他父親病了，他很擔(dān)心。We are looking forward to the singer's/the singer to give us a concert.我們盼望著這位歌手來給我們舉辦一場演唱會。
新人教版高中英語選修2Unit 3 Food and Culture-Reading and thinking教學(xué)設(shè)計(jì)
The discourse explores the link between food and culture from a foreign’s perspective and it records some authentic Chinese food and illustrates the cultural meaning, gerography features and historic tradition that the food reflects. It is aimed to lead students to understand and think about the connection between food and culture. While teaching, the teacher should instruct students to find out the writing order and the writer’s experieces and feelings towards Chinese food and culture.1.Guide the students to read the text, sort out the information and dig out the topic.2.Understand the cultural connotation, regional characteristics and historical tradition of Chinese cuisine3.Understand and explore the relationship between food and people's personality4.Guide the students to use the cohesive words in the text5.Lead students to accurately grasp the real meaning of the information and improve the overall understanding ability by understanding the implied meaning behind the text.1. Enable the Ss to understand the structure and the writing style of the passage well.2. Lead the Ss to understand and think further about the connection between food and geography and local character traits.Step1: Prediction before reading. Before you read, look at the title, and the picture. What do you think this article is about?keys:It is about various culture and cuisine about a place or some countries.
二元一次方程組教案教學(xué)設(shè)計(jì)
1、問題1的設(shè)計(jì)基于學(xué)生已有的一元一次方程的知識，學(xué)生獨(dú)立思考問題，同學(xué)會考慮到題中涉及到等量關(guān)系，從中抽象出一元一次方程模型；同學(xué)可能想不到用方程的方法解決，可以由組長帶領(lǐng)進(jìn)行討論探究.2、問題2的設(shè)計(jì)為了引出二元一次方程，但由于同學(xué)的知識有限，可能有個別同學(xué)會設(shè)兩個未知數(shù)，列出二元一次方程；如果沒有生列二元一次方程，教師可引導(dǎo)學(xué)生分析題目中有兩個未知量，我們可設(shè)兩個未知數(shù)列方程，再次從中抽象出方程模型.根據(jù)方程特點(diǎn)讓生給方程起名，提高學(xué)生學(xué)習(xí)興趣.3、定義的歸納，先請同學(xué)們觀察所列的方程，找出它們的共同點(diǎn)，并用自己的語言描述，組內(nèi)交流看法；如果學(xué)生概括的不完善，請其他同學(xué)補(bǔ)充. 交流完善給出定義，教師規(guī)范定義.