-
人教版高中數(shù)學選修3成對數(shù)據(jù)的相關關系教學設計
由樣本相關系數(shù)??≈0.97,可以推斷脂肪含量和年齡這兩個變量正線性相關，且相關程度很強。脂肪含量與年齡變化趨勢相同.歸納總結1．線性相關系數(shù)是從數(shù)值上來判斷變量間的線性相關程度，是定量的方法．與散點圖相比較，線性相關系數(shù)要精細得多，需要注意的是線性相關系數(shù)r的絕對值小，只是說明線性相關程度低，但不一定不相關，可能是非線性相關．2．利用相關系數(shù)r來檢驗線性相關顯著性水平時，通常與0.75作比較，若|r|>0.75，則線性相關較為顯著，否則不顯著．例2. 有人收集了某城市居民年收入(所有居民在一年內(nèi)收入的總和)與A商品銷售額的10年數(shù)據(jù),如表所示.畫出散點圖，判斷成對樣本數(shù)據(jù)是否線性相關，并通過樣本相關系數(shù)推斷居民年收入與A商品銷售額的相關程度和變化趨勢的異同.
人教版高中數(shù)學選修3離散型隨機變量的方差教學設計
3.下結論.依據(jù)均值和方差做出結論.跟蹤訓練2. A、B兩個投資項目的利潤率分別為隨機變量X1和X2，根據(jù)市場分析， X1和X2的分布列分別為X1 2% 8% 12% X2 5% 10%P 0.2 0.5 0.3 P 0.8 0.2求：(1)在A、B兩個項目上各投資100萬元， Y1和Y2分別表示投資項目A和B所獲得的利潤，求方差D(Y1)和D(Y2)；(2)根據(jù)得到的結論，對于投資者有什么建議？ 解：(1)題目可知，投資項目A和B所獲得的利潤Y1和Y2的分布列為：Y1 2 8 12 Y2 5 10P 0.2 0.5 0.3 P 0.8 0.2所以 ;; 解：(2) 由(1)可知 ，說明投資A項目比投資B項目期望收益要高；同時 ，說明投資A項目比投資B項目的實際收益相對于期望收益的平均波動要更大.因此，對于追求穩(wěn)定的投資者，投資B項目更合適;而對于更看重利潤并且愿意為了高利潤承擔風險的投資者，投資A項目更合適.
小學數(shù)學北師大版三年級上冊《第五課里程表（二）》教案說課稿
（一）觀圖激趣、設疑導入 1.出示課件-情境圖師：上節(jié)課我們初步學習了里程表的知識，這節(jié)課我們接著來研究里程表中的數(shù)學問題。板書課題：里程表（二）師：淘氣的叔叔是出租車司機。淘氣為了記錄叔叔每天跑的路程，淘氣在叔叔星期一早上出車時，里程表的讀數(shù)是35千米。淘氣記錄了叔叔周一至周五每天回家時的里程表讀數(shù)。（課件展示里程表）。（二）探究新知1.例1（1）師：請同學們認真觀看淘氣記錄的叔叔的周一到周五的里程表，想一想，說一說你知道了哪些數(shù)學信息？生：我發(fā)現(xiàn)了叔叔周一行了160千米。 師：同學們他說找到數(shù)學信息對嗎？生：160千米不是星期一的行駛里程，應該是星期一晚上里程表上的讀數(shù)。 星期二里程表上的讀數(shù)是350,。生：。。。。師：同學們找的數(shù)學信息非常多，非常全面。（2）小組討論交流：淘氣根據(jù)題意畫了一個圖，你看懂了嗎？與同伴說一說。
小學數(shù)學人教版六年級下冊《第五課圖形的認識與測量（第2課時）》教案說課稿
【課時安排】 1課時【教學過程】1.回顧梳理、歸納總結。師：我們學過哪些立體圖形？生：長方體、正方體、圓柱體、圓錐體師：它們分別有哪些特征？師生共同總結立體圖形的特征。 課件演示：長方體的特征：6個面是長方形（特殊情況有兩個對面是正方形）相對的面完全相同；12條棱，相對的4條棱長度相等；8個頂點。正方體的特征：6個面都相等，都是正方形；12條棱都相等；8個頂點。圓柱的特征：上下兩個面是完全相同的圓形，側面是一個曲面，沿高展開一般是個長方形。上下一樣粗；有無數(shù)條高，每條高長度都相等。
小學數(shù)學人教版六年級下冊《第五課圖形的認識與測量（第1課時）》教案說課稿
2.三角形的分類。師：你能給三角形按照不同的標準進行分類嗎？生用自己喜歡的方式整理分類，然后匯報：生：三角形按角分為銳角三角形、直角三角形、鈍角三角形。師：什么是銳角三角形、直角三角形、鈍角三角形？生：三個角都是銳角的三角形叫做銳角三角形；有一個角是直角的三角形叫做直角三角形；有一個角是鈍角的三角形叫做鈍角三角形。生：三角形按邊分為不等邊三角形（三條邊都不相等）、等腰三角形（等邊三角形） 等腰三角形的兩條邊相等，等邊三角形的三條邊都相等。3.四邊形分類。師：你能給四邊形分類嗎？生：四邊形分為平行四邊形和梯形；平行四邊形包括長方形和正方形，長方形又包括正方形；梯形包括等腰梯形和直角梯形。4.直線、射線和線段的關系。小組內(nèi)互相交流，然后匯報：
初中數(shù)學浙教版七年級下冊《第二章 二元一次方程組 三元一次方程組及其解法》教材教案
知識與技能目標：1. 能正確說出三元一次方程（組）及其解的概念，能正確判別一組數(shù)是否是三元一次方程（組）的解；2. 會根據(jù)實際問題列出簡單的三元一次方程或三元一次方程組。過程與方法目標：1. 通過加深對概念的理解，提高對“元”和“次”的認識。2. 能夠逐步培養(yǎng)類比分析和歸納概括的能力，了解辯證統(tǒng)一的思想。情感態(tài)度與價值觀目標：通過對實際問題的分析，使學生進一步體會方程是刻畫現(xiàn)實世界的有效數(shù)學模型，培養(yǎng)學生良好的數(shù)學應用意識。
人教版高中數(shù)學選修3分類加法計數(shù)原理與分步乘法計數(shù)原理(1)教學設計
問題1. 用一個大寫的英文字母或一個阿拉伯數(shù)字給教室里的一個座位編號，總共能編出多少種不同的號碼？因為英文字母共有26個，阿拉伯數(shù)字共有10個，所以總共可以編出26+10=36種不同的號碼.問題2.你能說說這個問題的特征嗎？上述計數(shù)過程的基本環(huán)節(jié)是：（1）確定分類標準，根據(jù)問題條件分為字母號碼和數(shù)字號碼兩類；（2）分別計算各類號碼的個數(shù)；（3）各類號碼的個數(shù)相加，得出所有號碼的個數(shù).你能舉出一些生活中類似的例子嗎？一般地，有如下分類加法計數(shù)原理：完成一件事，有兩類辦法. 在第1類辦法中有m種不同的方法，在第2類方法中有n種不同的方法，則完成這件事共有:N= m+n種不同的方法.二、典例解析例1.在填寫高考志愿時，一名高中畢業(yè)生了解到，A,B兩所大學各有一些自己感興趣的強項專業(yè)，如表，
人教版高中數(shù)學選修3分類加法計數(shù)原理與分步乘法計數(shù)原理(2)教學設計
當A,C顏色相同時,先染P有4種方法,再染A,C有3種方法,然后染B有2種方法,最后染D也有2種方法.根據(jù)分步乘法計數(shù)原理知,共有4×3×2×2=48(種)方法;當A,C顏色不相同時,先染P有4種方法,再染A有3種方法,然后染C有2種方法,最后染B,D都有1種方法.根據(jù)分步乘法計數(shù)原理知,共有4×3×2×1×1=24(種)方法.綜上,共有48+24=72(種)方法.故選B.答案:B5.某藝術小組有9人,每人至少會鋼琴和小號中的一種樂器,其中7人會鋼琴,3人會小號,從中選出會鋼琴與會小號的各1人,有多少種不同的選法?解:由題意可知,在藝術小組9人中,有且僅有1人既會鋼琴又會小號(把該人記為甲),只會鋼琴的有6人,只會小號的有2人.把從中選出會鋼琴與會小號各1人的方法分為兩類.第1類,甲入選,另1人只需從其他8人中任選1人,故這類選法共8種;第2類,甲不入選,則會鋼琴的只能從6個只會鋼琴的人中選出,有6種不同的選法,會小號的也只能從只會小號的2人中選出,有2種不同的選法,所以這類選法共有6×2=12(種).因此共有8+12=20(種)不同的選法.
第五周國旗下講話稿：體育教育與生命教育
老師們、同學們：早上好！當今的教育出現(xiàn)了一些問題，但這些問題的出現(xiàn)歸結為一點，就是人文精神的失落。人文精神，簡單地說就是現(xiàn)在人們常說的“以人為本”，也就是說，要把人放在最重要的位置上，要尊重人的價值。人身上有三種東西是最寶貴的：生命、頭腦和靈魂。與生命相應的教育除了狹義的體育教育，還要擴大到生命教育。今天，我和大家交流的話題就是：體育教育與生命教育。很多研究“運動與學習成績關系”的成果都表明每天參加一小時體育鍛煉的孩子學習成績比較好。當有記者問及“全美最佳教師”雷夫教育孩子的秘訣，他說，秘訣無非有二：一是藝術引領；二是打棒球。眾所周知，雷夫班上的孩子個個是棒球高手。北京匯文中學“Astrongmindinastrongbody.”（健全的頭腦只寓于健康的身體之中。）的教育信條影響了一代代匯文人。清華附小竇桂梅校長提出的“體育應為小學核心課程”的理念也給了我深深地啟發(fā)?，F(xiàn)在學校的建設還在不斷地完善中，近期，學校將配備上籃球架和乒乓球臺，同學們還可以自帶跳繩來學校。學校也會逐漸開發(fā)一些體育項目供大家進行體育活動。學校將通過體育設施的完善，體育活動的開發(fā)與實踐來促進體育教育的開展。
小學數(shù)學人教版六年級下冊《第二課比例的基本性質(zhì)》教案說課稿
（一）觀圖激趣、設疑導入 師:上一節(jié)我們已經(jīng)認識了比例,知道兩個比怎樣才能組成比例,下面請同學們判斷一下下面各組的比能否組成比例。(1)0.4∶和1.2∶2 (2)和生1:根據(jù)比例的意義,第(1)題,這兩個比的比值相等,都是0.6,所以(1)題的兩個比能組成比例。生2:我來回答第(2)題,我也利用比例的意義,求出=5,=6,這兩個比的比值不相等,所以第(2)題的兩個比不能組成比例。師:這兩名同學回答的真好,有理有據(jù),讓我們?yōu)樗麄兊谋憩F(xiàn)鼓掌!師:今天這節(jié)課,我們將共同來學習用另一種方法來判斷兩個比能否組成比例,同學們想知道是什么方法嗎?生:想知道。師:那就是比例的基本性質(zhì)(板書課題:比例的基本性質(zhì))。【設計意圖】復習學生已有的知識,喚醒學生已有學習經(jīng)驗,教師的提問吸引了學生的注意力,也引發(fā)學生的好奇心,為學習新知識開了一個好頭。
小學數(shù)學人教版六年級下冊《第二課成反比例的量》教案說課稿
【教學過程】（一）觀圖激趣、設疑導入 出示課件的第一張幻燈片。1、成正比例的量有什么特征?2、正比例關系式。生1：兩種相關聯(lián)的量,一種量變化,另一種量也隨著變化。生2：兩種量中相對應的兩個量的比值（商）一定。生3：=k(一定)。師:同學們非常棒！我們今天繼續(xù)學習兩種量的另外一種關系。 (板書:成反比例的量)【設計意圖】這種方法的導入，簡簡單單的一道練習題,把學生的注意力吸引到本節(jié)主要內(nèi)容上來,激起學生的好奇心,真的還有另外一種關系!我可得好好聽一聽。這樣在學習反比例時學生會始終保持高度的精神集中,有利于教師教學順利進行。（二）探究新知教學例2,探究反比例的意義,理解成反比例的量。1、出示PPT課件回答問題。杯子的底面積與水的高度的變化情況如下表。 杯子的底面積/cm²1015203060…水的高度/cm302015105…觀察上表,回答下面的問題。（1）表中有哪兩種量?（2）水的高度是怎樣隨著杯子底面積的大小變化而變化的?（3）相對應的杯子的底面積與水的高度的乘積分別是多少?生1:表中有杯子的底面積和水的高度這兩種量。生2:從表中可以看出:水的高度隨著杯子的底面積的變大而不斷變小,這兩種量是相關聯(lián)的兩種量。生3:我來回答(3),相對應的杯子的底面積與水的高度的乘積分別是:10×30=15×20=20×15=30×10=60×5=…=300。生4:乘積一定。師:底面積與高的乘積表示的是什么?生:水的體積。(板書)師：你會算出水的體積嗎？生：會。（學生計算，教師出示課件訂正）2、揭示反比例的意義。師:積是300,實際就是倒入杯子的水的體積。同學們能用式子表示出它們的關系嗎?生:它們的關系是:底面積×高=體積。師:同學們,我們用概括正比例意義時的方法來概括一下反比例的意義吧!生:像這樣,兩種相關聯(lián)的量,一種量變化,另一種量也隨著變化,如果這兩種量中相對應的兩個數(shù)的乘積一定,這兩種量就叫做成反比例的量,它們的關系叫做反比例關系。(板書反比例的意義)3、用字母表示反比例關系:xy=k(一定)。(板書)4、牛刀小試。鍋爐房燒煤的天數(shù)與每天燒煤的噸數(shù)如下表: 每天燒煤的噸數(shù)/噸11.522.53燒煤的天數(shù)/天3020151210(1)表中有哪兩種量?它們是不是相關聯(lián)的量?(2)寫出幾組這兩種量中相對應的兩個數(shù)的積,并比較大小,說一說這個積表示什么。(3)燒煤的天數(shù)與每天燒煤的噸數(shù)成反比例嗎?為什么?【參考答案】 (1)每天燒煤的噸數(shù)和燒煤的天數(shù),是相關聯(lián)的量?！?2)1×30=30 1.5×20=30 2×15=30 2.5×12=30 3×10=30 積相等,這個積表示這批煤的總噸數(shù)?！?3)成反比例,因為燒煤的天數(shù)與每天燒煤的噸數(shù)的積一定?！驹O計意圖】學生通過觀察、發(fā)現(xiàn)、概括經(jīng)歷了整個學習過程,逐步形成定向思維方式,為學會學習打好基礎。
小學數(shù)學人教版六年級下冊《第二課成數(shù)》教案說課稿
（一）復習導入 1. 師：同學們，上節(jié)課我們學習了折扣，你會做下面的題嗎？（課件第2張）（1）五五折表示十分之（五點五），也就是（55）%。 （2）一件商品打九八折出售，就是按原價的（98%）出售。（3）一件上衣原價75元，現(xiàn)在打八折售出，現(xiàn)在買這件上衣需要（60）元。（4）現(xiàn)價=（原價）×（折扣）2.師：生活中的百分數(shù)還有很多，比如說“成數(shù)”。例如：今年我省油菜籽比去年增產(chǎn)二成。這節(jié)課我們就來學習“成數(shù)”。（板書課題：成數(shù)）（課件第3張）【設計意圖】 “折扣”與“成數(shù)”雖然運用不一樣，但解決方法大致相同，復習不僅可以起到鞏固作用，也能讓學生對新知的解決有一些鋪墊。（二）探究新知 1、探究成數(shù)的含義以及成數(shù)和百分數(shù)的關系。（課件第4張）（1）農(nóng)業(yè)收成，經(jīng)常用成數(shù)來表示。你知道什么是成數(shù)嗎？ 生1：成數(shù)表示一個數(shù)是另一個數(shù)的十分之幾，通稱“幾成”?！耙怀伞本褪鞘种唬膶懗砂俜謹?shù)是10%。（2）填一填。（課件第5張）“二成”就是（十分之二），改寫成百分數(shù)是（20%）；“三成五”就是（十分之三點五），改寫成百分數(shù)是（35%）?！八某扇本褪牵ㄊ种狞c三），改寫成百分數(shù)是（43%）；“六成五”就是（十分之六點五），改寫成百分數(shù)是（65%）。（3）把下面的成數(shù)改寫成百分數(shù)。 （課件第6張）三成=（30）% 四成六=（46）% 九成九=（99）% 二成五=（25）% 一成二=（12）% 七成三=（73）%
新人教版高中英語選修2Unit 1 Science and Scientists-Using langauge教學設計
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 2 Bridging Cultures-Discovering useful structures教學設計
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 5 First Aid-Discovering useful structures教學設計
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形式復合結構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”構成。動詞ing形式的復合結構實際上是給動詞ing形式加了一個邏輯主語。動詞ing形式的復合結構有四種形式：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 4 Journey Across a Vast Land教學設計
當孩子們由父母陪同時，他們才被允許進入這個運動場。3．過去分詞(短語)作狀語時的幾種特殊情況(1)過去分詞(短語)在句中作時間、條件、原因、讓步狀語時，相當于對應的時間、條件、原因及讓步狀語從句。Seen from the top of the mountain (＝When it is seen from the top of the mountain), the whole town looks more beautiful.從山頂上看，整個城市看起來更美了。Given ten more minutes (＝If we are given ten more minutes), we will finish the work perfectly.如果多給十分鐘，我們會完美地完成這項工作。Greatly touched by his words (＝Because she was greatly touched by his words), she was full of tears.由于被他的話深深地感動，她滿眼淚花。Warned of the storm (＝Though they were warned of the storm), the farmers were still working on the farm.盡管被警告了風暴的到來，但農(nóng)民們?nèi)栽谵r(nóng)場干活。(2)過去分詞(短語)在句中作伴隨、方式等狀語時，可改為句子的并列謂語或改為并列分句。The teacher came into the room, followed by two students (＝and was followed by two students)．后面跟著兩個學生，老師走進了房間。He spent the whole afternoon, accompanied by his mom(＝and was accompanied by his mom)．他由母親陪著度過了一整個下午。
新人教版高中英語選修2Unit 1 Science and Scientists-Discovering useful structures教學設計
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教學設計
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教學設計
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
xx區(qū)2023年國慶節(jié)假日文化旅游工作總結
一、從嚴做好疫情防控工作節(jié)前，區(qū)委常委、區(qū)政府副區(qū)長xx，區(qū)委常委、宣傳部長xx，區(qū)政府副區(qū)長xx分別帶隊檢查文旅場所疫情防控和節(jié)日安全工作，區(qū)文化旅游委召開國慶節(jié)前安全生產(chǎn)疫情防控暨廉政教育工作會，發(fā)布2023年國慶期間及前后疫情防控措施。節(jié)假日期間，xx副區(qū)長主持召開國慶期間文化旅游行業(yè)疫情防控調(diào)度會，要求從嚴從緊抓好文化和旅游行業(yè)疫情防控工作。按照市文化旅游委《關于扎實做好2023年國慶節(jié)期間文化和旅游假日市場相關工作的通知》要求，督導A級景區(qū)嚴格落實“限量、預約、錯峰”要求，對所有入園游客進行掃碼測溫，查驗72小時核酸檢測陰性證明，符合屬地疫情防控要求的方可進入；督導星級飯店加強通風消毒，對入住人員查驗健康碼，查驗72小時內(nèi)核酸檢測陰性證明；督導轄區(qū)旅行社和在線旅游企業(yè)嚴格落實跨省旅游經(jīng)營活動“熔斷”機制；督導文化經(jīng)營場所和公共文化單位嚴格落實各項疫情防控要求，對進入場所人員嚴格落實掃碼、測溫等疫情防控措施。按照非必要不舉辦原則，減少大型演出、展覽、會議、培訓等聚集性活動。加強從業(yè)人員的健康監(jiān)測和管理，及時掌握員工健康狀態(tài)、出行軌跡等情況，堅決防止帶病上崗，嚴格落實當?shù)匾咔榉揽卣摺?/p>