第一篇:高一集合習題
1002141班兩訪兩創老師負責學生名單
丁文灝老師負責
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100214114 姜鵬飛男
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100214117 匡夢靈 女
100214119 李蔡芳 女 100214120 李萌女 100214121 劉嬋女 100214122 劉晶晶 女 100214123 劉倩女 100214124 劉奕可 女 100214125 馬茹婷 女 100214126 毛美蓉 女 100214127 梅倩女 100214128 史履俠 女
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第二篇:高一英語習題
UNIT1
1.Excuse me for breaking in, ____I have some news for you.A.SoB.andC.butD.yet2.Let Harry play with your toy as well, Clare.You should learn to___...
A.SupportB.careC.spareD.share
3.—when can I come for the photos? I need them tomorrow afternoon.--They ___be ready by 12:00.A.4.Paul doesn’t have to be made___.He always works hard...
CanB.shouldC.mightD.need
A.LearnB.to learnC.learnedD.learning
5.--Do you know John quarreled with his brother?--I don’t know,___.A.. Nor don’t I careB.Nor do I careC.
.I don’t care neitherD.I don’t care also
6.The skirt cost her ___money.What’s more , the colour is __dark for her.A.so much;too muchB.so much;very muchC.much too;too muchD.too much;much too
7.John shut everybody out of the kitchen ____he could prepare his grand surprise for the party.A.whichB.whenC.so thatD.ass if
8.-Will you give this message to Mr.White, please ?-Sorry , I can’t.He ___.A.doesn’t any more work hereB.doesn’t any longer here workC.doesn’t work any more hereD.doesn’t work here any longer 9.Mary enjoys ____questions but dislike ____them.A.to ask;to answerB.asking;answeringC.asking, to answerD.to ask;answering
10.I can hardly imagine Peter ____across the Atlantic Ocean in five days.A.sailB.to sailC.sailingD.to have sailed
11.As your spoken English gets better ,____your written English.A.so doesB.so will C.neither doesD.neither will 12.I want to make ____with him, but he is too proud.A.a friendB.friendsC.an enemyD.enemies
13.In order to protect the trees, the old man lives ____in a ____house, but he doesn’t feel____.A.alone , alone , lonelyB.lonely;alone;aloneC.lonely;lonely;aloneD.alone;lonely, lonely14.–She looks very happy.--_________.A.She is so and so are youB.So she does and so do youC.So she does and so you doD.so does she and so do you
15.He just plays football for ____,because he thinks it _____great pleasure to have sports after work..A.fun;/B.a fun;/ aC.fun;aD.a fun;/
16.–It is twelve o’clock.I think I must be off now.--Oh, really ? I_____it at all.A.don’t realizeB.haven’t realizedC.didn’t realizeD.hadn’t realized 17.–How much shall I pay for the phone call?--You _____.It’s free for charge.A.shouldn’tB.don’t have toC.can’tD.mustn’t18.–I’m going to an English Party held by Mrs.Liu--Oh, great.______.--Thanks.A.ByeB.See youC.Take careD.Have fun
19.–It is surprising that John came out of the plane alive.--Yes, only a few ____the crash.A.survivedB.surviveC.survivesD.has survived
20.He raised his voice so as to make himself ______by the people in the
back row.A.hearB.heardC.hearingD.be heard
21.No matter how late he is , his mother always waits ____dinner.A.for him to have B.for him having C.him havingD.him to have22.I haven’t heard from Henry for a long time.What do you suppose______To him?
A.was happening B.to happenC.has happenedD.had happened
23.It’s time for us young people to work hard to make our country______.A.rich & strongB.to be rich & strongC.be rich & strongD.becoming rich & strong24.The missing boy was seen ____near the river.A.playingB.playsC.playedD.to play25.I have my lunch in the school ____home.A.instead inB.instead atC.instead ofD.instead of at 26.—Shall we invite Mike to listen to some classic music?--I’m afraid he isn’t _____
A.to make fun ofB.to be made fun ofC.being made fun ofD.making fun 27.No one likes ______.A.to make fun of B.to be made of C.being made fun ofD.making fun 28.–Alice, you feed the bird today ,______?--But I fed it yesterday.A.do youB.will youC.didn’t youD.don’tyou
29.Although this TV set will take up more space ,____I think I should get
it.A.whileB.butC.howeverD.yet30.—I have got your invitation.--Oh, good _____.A.will you be able to comeB.Thanks a lotC.I’ll take itD.May I help you ?
1-5CDBBB 6-10 DCDBC 11-15 BBDBC 16-20 CBDAB21-25 ACAAD 26-30 DCBDA
第三篇:高一集合教案
1、集合的概念 【教學目標】 1.初步理解集合的概念;理解集合中元素的性質. 2.初步理解“屬于”關系的意義;知道常用數集的概念及其記法. 3.引導學生發現問題和提出問題,培養獨立思考和創造性地解決問題的意識.
【教學重點】 集合的基本概念,元素與集合的關系.
【教學難點】 正確理解集合的概念.
【教學方法】 本節課采用問題教學和講練結合的教學方法,運用現代化教學手段,通過創設情景,引導學生自己獨立地去發現、分析、歸納,形成概念.
【教學過程】 環節 教學內容
師生互動 設計意圖 導 入 師生共同欣賞圖片“中國所有的大熊貓”、“我們班的所有同學”. 師:“物以類聚”;“人以群分”;這些都給我們以集合的印象.
引入課題. 聯系實際; 激發興趣. 新 課 課件展示引例:(1)某學校數控班學生的全體;(2)正數的全體;(3)平行四邊形的全體;(4)數軸上所有點的坐標的全體. 師:每個例子中的“全體” 是由哪些對象構成的?這些對象是否確定? 你能舉出類似的幾個例子嗎? 學生回答. 教師引導學生閱讀教材,提出問題如下:(1)集合、元素的概念是如何定義的?(2)集合與元素之間的關系為何?是用什么符號表示的?(3)集合中元素的特性是什么?(4)集合的分類有哪些? 從具體事例直觀感知集合,為給出集合的定義做好準備. 老師提出問題,放手讓學生自學,培養自學能力,提高學生的學習能力.新 課
1.集合的概念.(1)一般地,把一些能夠確定的對象看成一個整體,我們就說,這個整體是由這些對象的全體構成的集合(簡稱為集).(2)構成集合的每個對象都叫做集合的元素.(3)集合與元素的表示方法:一個集合,通常用大寫英文字母 A,B,C,? 表示,它的元素通常用小寫英文字母 a,b,c,?? 表示.
2.元素與集合的關系.(1)如果 a 是集合 A 的元素,就說a 屬于A,記作aA,讀作“a 屬于A”.(2)如果a 不是集合A 的元素,就說 a 不屬于A,記作a A.讀作“a 不屬于A”.
3.集合中元素的特性.(1)確定性:作為集合的元素,必須是能夠確定的.這就是說,不能確定的對象,就不能構成集合.(2)互異性:對于一個給定的集合,集合中的元素是互異的.這就是說,集合中的任何兩個元素都是不同的對象.
4.集合的分類.(1)有限集:含有有限個元素的集合叫做有限集.(2)無限集:含有無限個元素的集合叫做無限集.
5.常用數集及其記法.(1)自然數集:非負整數全體構成的集合,記作 N;(5)常用數集如何表示? 教師檢查學生自學情況,梳 理本節課知識,并強調要注意的問題. 教師要把集合與元素的定義分析透徹. 請同學舉出一些集合的例子,并說出所舉例子中的元素. 教師強調:“”的開口方向,不能把aA 顛倒過來寫. 教師強調集合元素的確定性.師:高一(1)班高個子同學的全體能否構成集合? 生:不能構成集合.這是由于沒有規定多高才算是高個子,因而“高個子同學”不能確定. 教師強調:相同的對象歸入同一個集合時只能算作集合的一個元素. 請學生試舉有限集和無限集的例子. 師:說出自然數集與非負整數集的關系. 生:自然數集與非負整數集是相同的. 檢查自學、梳理知識階段,穿插講解 解難點、強調重點、舉例說明疑點等環節,使學生真正掌握所學知識. 3 新 課(2)正整數集:非負整數集內排除0 的集合,記作 N+或 N*;(3)整數集:整數全體構成的集合,記作 Z;(4)有理數集:有理數全體構成的集合,記作 Q;(5)實數集:實數全體構成的集合,記作 R. 例1 判斷下列語句能否構成一個集合,并說明理由.(1)小于 10 的自然數的全體;(2)某校高一(2)班所有性格開朗的男生;(3)英文的 26 個大寫字母;(4)非常接近1 的實數. 練習1 判斷下列語句是否正確:(1)由2,2,3,3 構成一個集合,此集合共有4 個元素;(2)所有三角形構成的集合是無限集;(3)周長為20 cm 的三角形構成的集合是有限集;(4)如果a Q,b Q,則 a+b Q. 例2 用符號“”或“”填空:(1)1 N,0 N,-4 N,0.3 N;(2)1 Z,0 Z,-4 Z,0.3 Z;(3)1 Q,0 Q,-4 Q,0.3 Q;(4)1 R,0 R,-4 R,0.3 R. 練習2 用符號“”或“”填空:(1)-3 N;(2)3.14 Q;(3)1 3 Z;(4)- 1 2 R;(5)2 R;(6)0 Z. 師:也就是說,自然數集包括數0. 師:出示例題,引導學生討論、思考. 生:討論,回答,明確說出理由. 生:模仿練習;討論并口答. 師:點撥、解答學生疑難. 師:出示例題,請學生填寫. 生:口答各題結果. 師:引導學生進行訂正,并說明錯誤原因. 學生模仿練習; 老師訂正、點撥. 通過具體例子,師生的問答,鞏固集合概念及其元素特性. 通過練習進一步強化學生對集合中元素特性的理解. 通過例題2 和練習2,加深對特殊數集的理解以及元素與集合關系的理解與表示,既突出重點又分解難點.
小 結
本節課學習了以下內容: 1.集合的有關概念:集合、元素. 學生暢談本節課的收獲,老師引導梳理,總結本節課的知識梳理總結也可針對學生薄弱或易錯處 4 結 2.元素與集合的關系:屬于、不屬于. 3.集合中元素的特性. 4.集合的分類:有限集、無限集. 5.常用數集的定義及記法. 點. 強調總結. 作 業 學生課后完成. 鞏固拓展.集合的表示方法
【教學目標】 1.掌握集合的表示方法;能夠按照指定的方法表示一些集合. 2.發展學生運用數學語言的能力;培養學生分析、比較、歸納的邏輯思維能力. 3.讓學生感受集合語言的意義和作用,學習從數學的角度認識世界;通過合作學習培養學生的合作精神. 【教學重點】 集合的表示方法,即運用集合的列舉法與描述法,正確表示一些簡單的集合.【教學難點】 集合特征性質的概念,以及運用描述法表示集合.【教學方法】 本節課采用實例歸納,自主探究,合作交流等方法.在教學中通過列舉例子,引導學生討論和交流,并通過創設情境,讓學生自主探索一些常見集合的特征性質.
【教學過程】 環節 教學內容 師生互動 設計意圖 導 入 1.集合、元素、有限集和無限集的概念是什么? 2.用符號“”與“”填空白:(1)0 N;(2)- 2 Q;(3)- 2 R. 師:剛才復習了集合的有關概念,這節課我們一起研究如何將集合表示出來. 回顧舊知; 學習新知. 新 1.列舉法. 當集合元素不多時,我們常常把集合的元素列舉出來,寫在大括號“{}”內表示這個集合,這種表示集合的方法叫列舉法. 師:強調要注意的問題: ①注意區別 a 與 {a}. a 是集合{a}的一個元素,而{a}表示一個集合. 按集合元素不多和集合元素較多分類講解,便于學生接受. 5 課 新 課 例如,由1,2,3,4,5,6這6個數組成的集合,可表示為: {1,2,3,4,5,6}. 又如,中國古代四大發明構成的集合,可以表示為: {指南針,造紙術,活字印刷術,火藥}. 有些集合元素較多,在不發生誤解的情況下,可列幾個元素為代表,其他元素用省略號表示. 如:小于100的自然數的全體構成的集合,可表示為 {0,1,2,3,??,99}. 例1 用列舉法表示下列集合:(1)所有大于3且小于10的奇數構成的集合;(2)方程 x 2 -5 x+6=0的解集. 解(1){5,7,9};(2){2,3}. 練習1 用列舉法表示下列集合:(1)大于3 小于9 的自然數全體;(2)絕對值等于1 的實數全體;(3)一年中不滿31 天的月份全體;(4)大于3.5 且小于12.8 的整數的全體. 2.性質描述法. 給定 x 的取值集合 I,如果屬于集合 A 的任意元素 x 都具有性質 p(x),而不屬于集合 A 的元素都不具有性質p(x),則性質 p(x)叫做集合A的一個特征性質,于是集合 A 可以用它的特征性質描述為 {xI | p(x)},它表示集合 A是由集合 I 中具有性質 p(x)的所有元素構成的.這種表示集合的方法,叫做性質描述法. 使用特征性質描述法時要注意:(1)特征性質明確; 例如,某個代表團只有一個人,這個人本身和這個人構成的代表團是完全不同的; ②用列舉法表示集合時,不必考慮元素的前后順序. 師:集合{1,2}與{2,1} 表示同一個集合嗎? 生:是. 多媒體展示例題1. 學生口答.通過教師講解、師生問答,詳細說明什么是特征性質. 出示例子:正偶數構成的集合.它的每一個元素都具有性質 “能被2整除且大于0”,而這個集合外的其他元素都不具有這種性質,性質“能被2整除,且大于0”就是此集合的一個特征性質. 引導學生根據上面的描述總結集合的特征性質是什么? 多舉實例也有利于概念的理解. 通過一組簡單的口答題,掌握集合的列舉法. 通過例1 和練習1,鞏固列舉法的使用. 對集合性質描述法的理解是難點,此處通過舉例,由特殊到一般,便于學生突破這一思維障礙. 6 新 課(2)若元素范圍為 R,“xR”可以省略不寫. 例2 用性質描述法表示下列集合:(1)大于3的實數的全體構成的集合;(2)平行四邊形的全體構成的集合;(3)平面 內到兩定點 A,B 距離相等的點的全體構成的集合. 解(1){ x | x >3};(2){ x | x 是兩組對邊分別平行的四邊形};(3)l={ P ,|PA|=|PB|,A,B 為 內兩定點}. 練習2 用性質描述法表示下列集合:(1)目前你所在班級所有同學構成的集合;(2)正奇數的全體構成的集合;(3)絕對值等于3 的實數的全體構成的集合;(4)不等式4 x-5<3 的解構成的集合;(5)所有的正方形構成的集合. 師生共同歸納出性質描述法. 教師強調用特征性質描述法時應注意的兩個要點. 講解例題2,板書詳細的解題過程. 師:(1)一個集合的特征性質不是唯一的.如平行四邊形全體也可表示為 { x | x 是有一組對邊平行且相等的四邊形}.(2)在幾何中,通常用大寫字母表示點(元素),用小寫字母表示點的集合. 學生模仿練習.請學生在黑板上寫下答案,引導全班學生統一訂正. 老師點撥、解答學生疑難. 通過例2,讓學生掌握由描述法表示集合的不同類型:有限集、無限集或代數、幾何的表示方法,并使學生規范解題步驟. 通過練習,進一步突出重點,深化兩種表示方法的靈活運用. 小 結 本節課學習了以下內容: 1.列舉法. 2.性質描述法. 3.比較兩種表示集合的方法,分析它們所適用的不同情況. 師生共同分析總結: 1.有些集合的公共屬性不明顯,難以概括,不便用描述法表示,只能用列舉法. 如:集合{2}. 2.有些集合的元素不能無遺漏地一一列舉出來,或者不便于、不需要一一列舉出來,常用描述法. 如:集合 {xQ|1≤x≤4}. 以學生為主體,關注學生對本節課的體驗. 作 業 教材 P9,練習B 組 第1,2 題. 學生課后完成. 鞏固拓展.
1.3 集合之間的關系(一)
【教學目標】 1.理解子集、真子集概念;掌握子集、真子集的符號及表示方法;會用它們表示集合間的關系. 2.了解空集的意義;會求已知集合的子集、真子集并會用符號及Venn 圖表示. 3.培養學生使用符號的能力;建立數形結合的數學思想;培養學生用集合的觀點分析問題、解決問題的能力.
【教學重點】 子集、真子集的概念.
【教學難點】 集合間包含關系的正確表示.
【教學方法】 本節課采用講練結合、問題解決式教學方法,并運用現代化教學手段輔助教學.設計典型題目,并提出問題,層層引導學生探究知識,讓學生在完成題目的同時,思維得以深化;切實體現以人為本的思想,充分發揮學生的主觀能動性,培養其探索精神和運用數學知識的意識.
【教學過程】 環節 教學內容 師生互動 設計意圖 導 入 已知:M={-1,1},N={-1,1,3},P={ x | x 2 -1=0}.問 1.哪些集合表示方法是列舉法? 2.哪些集合表示方法是描述法? 3.集合 M 中元素與集合 N 有何關系?集合 M 中元素與集合 P 有何關系? 師:出示三個集合,并根據這些集合提出一組問題. 生:思考并回答問題,師:通過回答上面的問題,我們發現了:集合M 與集合N;集合 M 與集合 P 通過元素建立了某種關系,本節課,我們就來研究有關兩個集合之間關系的問題. 溫故而知新,以舊帶新,便于引導學生在已有的基礎上去探求新知識,使學生對出現的新概念不至于感到突然,符合學生的認識規律,很自然地引入本節課內容. 新 課 1.子集定義. 如果集合A 的任何一個元素都是集合B 的元素,那么集合A 叫做集合B 的子集. 記作 A B 或B A; 讀作 “A 包含于B”,或“B 包含A”. 2.真子集定義. 如果集合A 是集合B 的子集,并且集合B 中至少有一個元素不屬于A,那師:通過對引例中元素與集合關系的分析,得出子集的定義. 請學生舉滿足“A B”的實例. 在理解了“子集”定義的基礎上,引導學生根據元素與集啟發學生對引例進行深入分析、提煉,從而為概念的形成作好鋪墊. 遵循從特殊到一般的認知規律,歸納出定義. 集合間包含關系 8 新 課 么集合A 是集合B 的真子集. 記作 A B(或B A); 讀作 “A 真包含于B”,或“B 真包含A”. 3.Venn 圖表示. 集合B 同它的真子集A 之間的關系,可用Venn 圖表示如下. 4.空集定義. 不含任何元素的集合叫空集. 記作 . 如,{x| x 2 <0};{x | x+1=x+2},這兩個集合都為空集. 5.性質.(1)A A 任何一個集合是它本身的子集.(2) A 空集是任何集合的子集.(3)對于集合A,B,C,如果A B,B C,則AC.(4)對于集合A,B,C,如果A B,B C,則 A C. 例1 判斷:集合A 是否為集合B 的子集,若是則在()打“√”,若不是則在()打“×”.(1)A={1,3,5},B={1,2,3,4,5,6}()(2)A={1,3,5},B={1,3,6,9}()合的關系,試敘述“真子集”的定義. 老師總結,得出真子集的定義. 介紹用Venn 圖表示集合及集合間關系的方法. 請學生畫圖表示:A B. 請學生舉空集的例子. 師:能否把子集說成是由原來集合中的部分元素組成的集合? 生:分組討論,派代表發表各組看法. 解疑:不能. 因為集合的子集也包括它本身,而這個子集是由它的全體元素組成的.空集是任一個集合的子集,而這個集合中并不含有 B 中的元素. 師:出示題目,請學生思考、判斷. 生:根據定義作出判斷. 師:引導全班學生進行訂正,加深對定義的理解. 的正確理解與表示是難點,通過讓學生舉例可以突破這一難點,增進學生對定義的理解. 滲透數形結合的數學思想,提高學生的數學能力. 通過置疑、解疑的過程,使學生深刻理解子集的概念. 通過分組討論,關注學生的自主體驗,分解了難點. 在學習定義之后緊跟上一組根據定義進行判斷的題目,利于加深學生對定義的理解,鞏固新知. A B 9 新 課(3)A={0},B={ x | x 2 +2=0}()(4)A={ a,b,c,d },B={ d,b,c,a }()例2(1)寫出集合 A={1,2}的所有子集及真子集.(2)寫出集合 B={1,2,3}的所有子集及真子集. 解(1)集合 A 的所有子集是 ,{1},{2},{1,2}. 在上述子集中,除去集合A 本身,即{1,2},剩下的都是A 的真子集.(2)集合B 的所有子集是 ,{1},{2},{3},{1,2},{1,3},{2,3},{1,2,3}. 在上述子集中,除去集合B 本身,即{1,2,3},剩下的都是B 的真子集. 練習寫出集合A={a,b,c}的所有子集及真子集. 生:嘗試解答例題. 師:引導學生訂正;請學生歸納“寫出一個集合的所有子集”的步驟. 學生模仿練習,進一步理解子集及真子集的概念. 在板書的過程中,突出解題思路,體現解題步驟. 通過練習,進一步突出重點. 小 結 本節課主要學習的知識點: 1.子集. 2.真子集. 在學生歸納、總結的基礎上,老師梳理總結. 以學生為主體,培養學生的數學能力. 作 業 教材 P12,練習A 組第3、4 題. 學生課后完成. 鞏固拓展.
1.4 集合之間的關系
【教學目標】 1.理解兩個集合相等概念.能判斷兩集合間的包含、相等關系. 2.理解掌握元素與集合、集合與集合之間關系的區別. 3.學習類比方法,滲透分類思想,提高學生思維能力,增強學生創新意識.
【教學重點】 1.理解集合間的包含、真包含、相等關系及傳遞關系. 2.元素與集合、集合與集合之間關系的區別.
【教學難點】 弄清元素與集合、集合與集合之間關系的區別.
【教學方法】 本節課采用講練結合、問題解決式教學方法,并運用現代化教學手段進行教學.使學生初步經歷使用最基本的集合語言表示有關數學對象的過程,體會集合語言,發展運用數學語言進行交流的能力.精心設計問題情境,引起學生強烈的求知欲望,通過啟發,使學生的思考、發現、歸納等一系列的探究思維活動始終處于自主的狀態中.
【教學過程】 環節 教學內容 師生互動 設計意圖 導 入 課件展示下列集合:(1)A={1,3},B={1,3,5,6};(2)C={x | x 是長方形},D={x | x 是平行四邊形};(3)P={x | x 是菱形},Q={x | x 是正方形};(4)S={x | x>3},T={x | 3 x-6>3};(5)E={x|(x+1)(x+2)=0},F={-1,-2}. 師提出問題: 1.第(1),(2),(3)題中兩個集合的關系如何? 2.第(4),(5)題中,第二個集合是不是第一個集合的子集?第一個集合是不是第二個集合的子集? 生:觀察并回答問題. 師繼續提出問題:第(4),(5)題中,兩個集合中的元素有什么特點? 復習舊知; 引入新知. 在引導學生思考、回答問題的過程中,順利引出新課. 新 課 如果兩個集合的元素完全相同,那么我們就說這兩個集合相等. 記作 A=B. 讀作 集合A 等于集合B. 如果A B,且B A,那么A=B; 反之,如果A=B,那么AB,且B A. 例1 指出下面各組中集合之間的關系:(1)A={x | x 2 -9=0},B={-3,3};(2)M={x | |x|=1},N={-1,1}. 解(1)A=B;(2)M=N. 例2 判斷以下各組集合之間的關系: 師:可見,集合A=B,是指A,B 的所有元素完全相同. 如,{1,-1}={-1,1}. 師:如果集合A=B,根據子集的定義判斷:AB 成立嗎? 生:討論,得出結論. 學生容易得出:A=B. 從具體實例直觀感知集合相等. 有效設置問題,理解用子集的觀點來理解集合相等. 及時鞏固集合相等的定義. 放手讓學生獨立 11 U S T F 新 課 新 課(1)A={2,4,5,7},B={2,5};(2)P={x | x 2 =1},Q={-1,1};(3)C={x | x 是正奇數},D={x | x 是正整數};(4)M={x | x 是等腰直角三角形},N={x | x 是有一個角是45的直角三角形}. 解(1)B A;(2)P=Q;(3)C D;(4)M=N. 練習1 用適當的符號(,,=,,)填空:(1)a {a,b,c};(2){4,5,6} {6,5,4};(3){a} {a,b,c};(4){a,b,c } { b,c};(5) {1,2,3};(6){x | x 是矩形} {x | x 是平行四邊形};(7)5 {5};(8){2,4,6,8} {2,8}. 例3 指出下列各集合之間的關系,并用 Venn 圖表示: A={x|x 是平行四邊形},B={x|x 是菱形},C={x|x 是矩形},D={x|x 是正方形}. 解 練習2 集合U,S,T,F 如圖所示,下列關系中哪些是對的?哪些是錯的? 請學生在黑板上板書. 教師引導學生訂正后,總結集合與集合的關系. 師:出示題目,請學生思考、試做. 生:分析、試做. 師:出示答案訂正,請學生核對做題情況,改正錯題并找出自己出錯的原因. 生:交流做錯的題目與出錯的原因. 師:匯總、強調學生容易出錯的問題,引起全班同學重視. 師:出示問題,請學生分組討論,并畫圖. 生:將答案畫到黑板上,全班同學討論訂正. 師:點評,給以賞識性評價. 首先學生分組討論,最后各選一個代表回答本組討論結果,其余同學補充. 最后教師公布答案,加以點評. 完成,培養自學能力,既提高學生的學習能力,又進一步鞏固了集合之間的關系. 用符號表示元素與集合的關系、集合間關系是難點,通過學生試做、老師訂正、學生反思、師生糾錯多個環節,使學生興趣盎然,在思考與爭論中得到正確答案,學生之間交流,教師與學生之間的交流達到高潮,有效地突破難點. 通過例3 和練習2,滲透數形結合思想,強化學生的畫圖、讀圖能力;培養學生用Venn 圖解決集合間關系問題的意識. A B C D 12(1)S U;(2)F T;(3)S T;(4)S F;(5)S F;(6)F U. 小 結 1.子集,真子集,集合相等. 2.元素與集合、集合與集合的關系. 讓學生暢談本節課的收獲,老師引導梳理,總結本節課的知識點. 便于學生掌握本節課的知識,利于學生對知識進行反饋、記憶. 作 業 教材P12,練習B 組第1、2、3 題. 學生課下完成. 鞏固拓展.
1.5 集合的運算(一)累計課時:
【教學目標】 1.理解交集與并集的概念與性質. 2.掌握交集和并集的表示法,會求兩個集合的交集和并集. 3.發展學生運用數學語言進行表達、交流的能力;培養學生觀察、歸納、分析的能力. 【教學重點】 交集與并集的概念與運算. 【教學難點】 交集和并集的概念、符號之間的區別與聯系. 【教學方法】 這節課主要采用發現式教學法和自學法.運用現代化教學手段,通過創設情景,提出問題,引導學生自己獨立地去發現問題、分析歸納、形成概念.并通過對比,自學相似概念,深化對概念的理解. 【教學過程】 環節 教學內容 師生互動 設計意圖 導 入 實例引入,以我校食堂每天買菜的品種構成的集合為例,引出集合運算的定義. 第一天買菜的品種構成的集合記為 A={黃瓜,冬瓜,鯽魚,蝦,茄子}; 第二天買菜的品種構成的集合記為 B={黃瓜,豬肉,毛豆,芹菜,蝦,土豆}. 師:提出問題: 1.兩天所買相同菜的品種構成的集合記為 C,則集合 C 等于什么? 2.兩天買過的所有菜的品種構成的集合記為 D,則集合 D 等于什么? 生:思考,感知集合運算. 聯系實際,引出集合運算: 問題中新得到的集合 C,D 是由已知集合的元素組成的. 我們就把由已知集合,按照某種指定的法則,構造出一個 13 新的集合,稱為集合的運算. 新 課 新 課
一、集合的交 1.交集的定義. 給定兩個集合 A,B,由既屬于 A 又屬于 B 的所有公共元素所構成的集合,叫做A,B 的交集. 記作 A ∩ B,讀作 “A 交 B”. 2.交集的Venn 圖表示. 3.交集的性質.(1)A ∩ B B ∩ A;(2)(A ∩ B)∩ C A ∩(B ∩ C);(3)A ∩ A= ;(4)A ∩ = A= . 例1(1)已知:A={1,2,3},B={3,4,5},C={5,3},則 A ∩ B= ; B ∩ C= ;(A ∩ B)∩ C= . 例2(1)已知A={x | x 是奇數},B= {x | x 是偶數},Z={x | x 是整數},求 A ∩ Z,B ∩ Z,A ∩ B. 解 A ∩ Z={x | x 是奇數} ∩ {x | x 啟發學生觀察引入中的例子,并發現結論:集合 C 中的元素是集合A 與B 的公共元素,即集合C是由既屬于A又屬于B 的元素構成的. 出示四組圖片,請學生討論:如何根據交運算的定義,用陰影表示出“A ∩ B”. 以填空的形式出示各條性質. 請學生根據交集的定義和上面的Venn 圖進行討論,填寫性質. 想一想,如果A B,那么 A ∩ B= . 師:出示例1(1)生:口答. 師:出示例2(1),引導學生弄清:(1)整數的分類;(2){x | x 是整數},{x | x 是奇數},{x | x 是偶數}各集合之引導學生感知、歸納、總結,形成概念. 通過畫圖,深化理解交集定義中“公共元素”的含意. 加強學生間的合作交流; 通過討論,深化對交集定義的理解 通過一組簡單的有限集求交集的口答題,使學生初步掌握交集的定義. 借助 Venn 圖解答題目,數形結合深化對交集的理解. A B A B A(B)A B 14 新 課 是整數}={x | x 是奇數}=A; B ∩ Z={x | x 是偶數} ∩ {x | x 是整數}={x | x 是偶數}=B; A ∩ B={x | x 是奇數} ∩ {x | x 是偶數}=.
二、集合的并 1.并集的定義. 給定兩個集合 A,B,把它們所有的元素合并在一起構成的集合,叫做 A 與B 的并集 記作 A ∪ B,讀作 “A 并 B”. 2.并集的Venn 圖表示. 3.并集的性質.(1)A ∪ B B ∪ A;(2)(A∪B)∪C A∪(B∪C);(3)A ∪ A= ;(4)A ∪ = A= . 例1(2)已知:A={1,2,3},B ={3,4,5},C={5,3}. 則 A ∪ B= ; B ∪ C= ;(A ∪ B)∪ C= . 例2(2)已知 A={x | x 是奇數},B= {x | x 是偶數},Z={x | x 是整數},求 A 間的關系. 生:試畫出Venn 圖,并解答此題. 在引例中,集合D 是集合A 與B 的什么運算? 師:出示自學提綱:(1)并集的定義是什么?其記法與讀法如何?(2)如何用 Venn 圖表示集合A 與B 的并集.(3)并集有哪些性質? 生:自學教材P14~15—— 集合的并,每四人為一組,討論并回答自學提綱中提出的問題. 師:以提問的方式檢查學生自學情況,訂正學生回答的問題結果,并出示各知識點. 想一想:如果A B,那么 A ∪ B= . 給學生以賞識性評價. 師:出示例1(2),例2(2)生:口答. 通過類比,得出并集的定義,提高學生的自學能力. 通過學生自己畫圖,深化理解并集定義中“所有元素”的含意. 以學生填空和自己畫圖的方法,調動學生自己類比交集,并主動參與到教學中來. 通過一組簡單的有限集求并集的口答題,使學生初步掌握并集的定義. A B A B A(B)A B 15 新 課 ∪ Z,B ∪ Z,A ∪ B. 解 A ∪ Z={x | x 是奇數} ∪{x | x 是整數}={x | x 是整數}=Z; B ∪ Z={x | x 是偶數} ∪ {x | x 是整數}={x | x 是整數}=Z; A ∪ B={x | x 是奇數} ∪ {x | x 是偶數}={x | x 是整數}=Z.
三、綜合應用 例3 已知 C={x | x≥1},D={x | x< 5},求 C ∩ D,C∪D. 解 C ∩ D={x | x≥1} ∩ {x | x<5} ={x | 1≤x<5}; C∪D={x | x≥1}∪{x | x<5}=R. 練習1 已知 A={x | x 是銳角三角形},B={x | x 是鈍角三角形}. 求 A ∩ B,A ∪ B. 練習2 已知 A={x | x 是平行四邊形},B={x | x 是菱形},求 A ∩ B,A ∪ B. 練習3 已知 A={x | x 是菱形},B= {x | x 是矩形},求 A ∩ B. 例4 已知 A={(x,y)| 4 x+y=6},B={(x,y)| 3 x+2 y=7},求 A ∩ B. 解 A ∩ B={(x,y)| 4 x+y=6} ∩ {(x,y)| 3 x+2 y=7} ={(x,y)| 4 x+y=6 3 x+2 y=7 } ={(1,2)}. 師:請學生對比交、并運算定義的不同,強調定義中“公共元素”與“所有元素”的不同含義. 師:引導學生畫圖、討論、解答,在黑板上寫出各題答案. 師:訂正答案,對學生出現的問題給以糾正、講解. 例4 教師首先引導學生分析得出:A ∩ B 的元素是集合A 與集合 B 中兩方程所構成的方程組的解,然后板書詳細的解題過程,并強調注意點集的表示方法. 通過例 1(1),例 2(1)與例1(2),例2(2)的對比,幫助學生區別交集、并集的定義. 通過綜合應用,使學生進一步掌握求交集、并集的方法,并與前面學過的知識結合,使學生對學過的集合有更新的認識. 在板書例 4 的過程中,使學生明確初中方程組的解的含義. 小 結 定義 記法 圖示 性質 交集 并集 1.學生讀書、反思: 讀教材P13~16,總結本節課收獲. 2.教師引導梳理,出示表格.學生填表,鞏固所學內容. 通過對比,加深理解,強化記憶. 梳理總結也可對學生薄弱或易錯處強調總結.作 業 教材 P16,練習A 組第1~4 題. 學生課后完成. 鞏固拓展. 16 1.1.4 集合的運算(二)累計課時: 【教學目標】 1.了解全集的意義;理解補集的概念,掌握補集的表示法;理解集合的補集的性質;會求一個集合在全集中的補集. 2.發展學生運用數學語言進行表達、交流的能力;培養學生建立數形結合的思想,將滿足條件的集合用Venn 圖或數軸一一表示出來;提高學生觀察、比較、分析、概括的能力. 3.鼓勵學生主動參與“教”與“學”的整個過程,激發其求知欲望,增強其學習數學的興趣與自信心. 【教學重點】 補集的概念與運算. 【教學難點】 全集的意義;數集的運算. 【教學方法】 本節課采用發現式教學法,通過引入實例,進而分析實例,引導學生尋找、發現其一般結果,歸納其普遍規律. 【教學過程】 環節 教學內容 師生互動 設計意圖 導 入 1.復習提問:集合的交運算與并運算. 2.實例引入,以我校食堂每天買菜的品種構成的集合為例: 計劃購進的品種構成的集合記為 U={黃瓜,冬瓜,鯽魚,蝦,茄子,豬肉,毛豆,芹菜,土豆}; 已經購進的品種構成的集合記為 A={黃瓜,鯽魚,茄子,豬肉,芹菜,土豆}. 師:提問上節課知識,并引出新問題之后,引入課題. 生:感受到數學在生活中處處存在. 師:出示引例,提出問題: 問題 1:集合 A 與集合 U 什么關系? 問題2:沒有購進的品種構成的集合是什么? 溫故而知新,便于引導學生在已有的基礎上去探求新知識. 聯系實際,使學生對將要學習的概念有感性認識,符合學生的認識規律. 新 課
一、全集 1.定義:我們在研究集合與集合之間的關系時,如果一些集合都是某一給定集合的子集,那么稱這個給定的集合為這些集合的全集.通常用字母U 表示. 2.特征:全集是一個相對的概念,是一個給定的集合,在研究不同問師:提出問題,請學生觀察并回答;集合A 與集合U 之間關系怎樣? 生:觀察集合間的關系,得出;集合A 是集合U 的子集. 師:通過上例,介紹全集的定義與特征. 從引例的集合關系中直觀感知全集涵義. 通過引導學生回答問題 1,得出全集的定義和特征. 17 新 課 題時,全集也不一定相同. 我們在研究數集時,常常把實數集R 作為全集.
二、補集 1.定義. 如果 A 是全集U 的一個子集,由U 中的所有不屬于 A 的元素構成的集合,叫做 A 在U 中的補集. 記作 U A. 讀作 “A 在U 中的補集”. 2.補集的Venn 圖表示. 例1 已知:U={1,2,3,4,5,6},A={1,3,5}. 則 U A= ; A ∩ U A= ; A ∪ U A= . 解 {2,4,6};;U. 例2 已知 U={ x | x 是實數},Q= { x | x 是有理數}. 則 U Q= ; Q ∩ U Q= ; Q ∪ U Q= . 解 { x | x 是無理數};;U. 3.補集的性質.(1)A ∪ U A=U ;(2)A ∩ U A= ;(3)U(U A)=A . 例3 已知全集U=R,A={x | x> 5},求 U A. 解 U A={x | x≤5}. 練習1(1)已知全集 U=R,A={ x | x 師:通過引導學生回答引例中的問題2“沒有購進的品種構成的集合是什么?”,得出補集的定義和特征;介紹補集的記法和讀法. 生:根據定義,試用陰影表示補集. 師:訂正、講解補集Venn 圖表示法.生:對例1 口答填空. 師:引導學生畫出例2 的 Venn 圖,明確集合間關系,請學生觀察并說出結果. 師:以填空的形式出示各條性質. 生:填寫性質. 師:結合數軸講解例3.學生解答練習1,并總結解題規律. 從引例的集合關系中直觀感知補集涵義. 通過畫圖來理解補集定義,突破難點. 借助簡單題目使學生初步理解補集定義. 例2 中補充兩問,為學生得出性質做鋪墊. 結合具體例題和 Venn 圖,使學生自己得出補集的各個性質,深化對補集概念的理解. 培養學生數形結合的數學意識. A U C U A 18 新 課 <1},求 U A.(2)已知全集 U=R,A={ x | x ≤1},求 U A. 練習2 設 U={1,2,3,4,5,6},A={5,2,1},B={5,4,3,2}.求 U A; U B; U A ∩ U B; U A ∪ U B. 練習3 已知全集 U=R,A={x |-1< x < 1}.求 U A,U A∩U,U A∪U,A ∩ U A,A ∪ U A. 學生做練習2、3,老師點撥、解答學生疑難. 通過練習加深學生對補集的理解. 小 結 補 集 定義 記法 圖示 性質 1.學生讀書、反思,說出自己學習本節課的收獲和存在問題. 2.老師引導梳理,總結本節課的知識點,學生填表鞏固.讓學生讀書、反思,培養學生形成良好的學習習慣,提高學習能力. 作 業 教材P17,練習A組第1~4 題. 學生課后完成. 鞏固拓展.
第四篇:高一英語《abraham lincoln》習題精選
《Abraham Lincoln》習題精選
一、單項選擇
1.I dreamed of buying a car ______ my own.A.of
B.at
C.with
D.by 2.I ______ her to be my best friend.A.regard
B.have
C.agree
D.consider 3.The reason _______ he didn't go to school last week was ______ he was ill.A.why;that B.that;because C.that;that
D.for;what 4.—Who was made ______ of your office?
—It was Tom Black.A.a head
B.the head
C.head
D.to be the head 5.______ a child, he began to learn drawing.A.When
B.While
C.As
D.Being
6.The nurse is kind ______ me.It is kind ______ her to help me to walk.A.of;for
B.for;of C.to;of
D.to;for 7.This work ______ a lot of time and energy.A.calls for
B.calls in C.calls at
D.calls on 8.I arrived here ______ July 23rd, and I’m leaving ______September.A.in?in
B.on?on
C.in?on
D.on?in 9.Those who ______ the plan tried to explain to those who did not agree to it.A.against
B.for
C.were against
D.were for 10.She looks like a teacher, but in fact she was ______ than a senior student.A.not more
B.no more
C.not most
D.no much 11.Important tasks ______ a lot of hard work and take a long time to complete.A.call for
B.call on
C.call in
U.call at 12.You’d better prepare a ______ tyre in case the car breaks down halfway.A.spare
B.dear
C.strong
D.fierce 13.He often spends his spare time ______ me ______ my studies.A.to help;on
B.helping;with
C.help;in
D.help;of
14.His mother did ______ she could ______ him.A.all what;help B.all that;help
C.all;to help
D.what;help
15.One morning an elephant was led down the road ______ they stood.A.that
B.which
C.where
D.there 16.A lot of factories have ______ in the last ten years.A.set up
B.put up C.been set up
D.been got up 17.His ______ is weightier than Mount Tai because he ______ for the people.A.dead;dead
B.dead;died
C.death;died
D.death;dead 18.Tell me ______ about your illness.A.few
B.little
C.a little
D.a few 19.We had to delay the party till next week, ______ we would not have something important to do.A.when
B.which
C.at which
D.at that
20.I hope you will find this valley a beautiful place, _______ you may spend your weekend.A.which
B.that
C.when
D.where Keys:1.A 2.D 3.A 4.C 5.C 6.C 7.A 8.D 9.D 10.B 11.A 12.A 13.B 14.C 15.C 16.C 17.C 18.C 19.A 20.D
二、完形填空
No one in the US could forget the day.April 14th, 1865,(1)Abraham Lincoln was shot that night,(2)a very busy day, the president and his wife went to Ford's Theatre D.C.,(3)a new play was going to put on.Near the theatre there lived(4)actor named John Wilkes Booth, who was strongly against the(5)though he hadn't fought for the South himself.As the play(6)after a moment for a rest, Booth came into the theatre.He walked slowly and quietly(7)the door through(8)he could move into the President's box.He looked(9)carefully so as to find the guards(10)were protecting the president from the enemy.To his joy, there was none of(II)and nobody noticed him.He reached the door quickly and began to hold the gun in his pocket.It was quiet in the theatre.Suddenly a terrible sound(12)in on the play.It surprised everyone and soon everyone looked(13)where the sound had just come.Smoke was seen(14)from the box, where the(15)had enjoyed the play all the night!Soldiers hurried(16), but it was too(17).The murderer had already jumped from the box(18)to the stage from which he hurriedly ran out of the(19).Lincoln, one of the greatest American presidents, was shot and(20)early the next morning.1.A.as
B.where
C.when
D.how
2.A.before
B.after
C.on
D.during
3.A.when
B.where
C.there
D.before
4.A.25-years old B.25 years old C.a 25-years-old D.a 25-year-old
5.A.North
B.South
C.the Union
D.slavery
6.A.came to a stop B.started
C.lasted
D.ended
7.A.towards
B.to
C.up to
D.down to
8.A.that
B.which
C.where
D.in
9.A.around
B.behind
C.back
D.forward
10.A.which
B.who
C.whom
D.what
11.A.guards
B.them
C.people
D.soldiers
12.A.broke
B.came
C.flied
D.went
13.A.at
B.to
C.up
D.down
14.A.to come
B.coming
C.to rise
D.raising
15.A.murderer B.guard
C.Lincoln
D.president
16.A.about
B.round
C.out
D.in
17.A.noisy
B.dark
C.late
D.surprise
18.A.on
B.in
C.down
D.over
19.A.stage
B.box
C.gate
D.theatre
20.A.was dead B.had been dead
C.had died
D.died 答案:1-5 CBBDA 6-10 AABAB 11-15 BACBC 16-20 DCCDD
三、閱讀理解
(A)
When Abraham Lincoln was a lawyer, he knew an officer of forty-four at a meeting.The man was honest and often helped him.He agreed to Lincoln’s opinions and fought against slavery and wanted freedom for all slaves.Abraham was thankful to him.And several years later he became President of the United States.He still remembered his old friend.In 1860 the Civil War broke out between the Southern and Northern States.The officer went to the front.In a battle he was seriously hurt.Dying, he told his soldier to tell President to take care of his son.Lincoln was sad at the bad news and allowed the young man to be a soldier.The young man wasn’t so brave as his father.He was afraid of death and Wouldn’t fight with the enemy soldiers.Once he wanted to leave the front which was in great need of soldiers.Having heard this, Lincoln was very angry.He agreed to promote(提拔)many of the soldiers to be officers except the young man.The young soldier’s mother was unhappy when she knew about it.She went to see the President and said, “My grandfather fought at Lexington, my father fought at New Orleans, and my husband was killed at Monterey.What haven’t you promoted my son for?”
“I guess, madam,” Lincoln said quietly, “Your family have done enough for our country.It's time to give the others a chance(機會).” 1.The officer often helped Lincoln because ______.A.he wanted to be a lawyer too
B.he agreed to his political opinions
C.he had studied in the same school
D.he was interested in his laws 2.The officer lost his life _______.A.for freedom of the slaves B.for his family
C.for his son
D.for honour
3.The officer asked Lincoln to take care of his son because _______.A.the President could allow his son to be a soldier
B.the President could promote his son to be an officer
C.they were good friends
D.he had helped Lincoln
4.Lincoln couldn’t promote the young man because _______.A.he didn’t stay in the front
B.he was afraid of death and wanted to leave the front
C.he was too young to do anything
D.the President wanted to give the others a chance 5.Which of the following is true?
A.The President was angry with the woman.B.The President forgot his friend ' s hope.C.The.President didn’t know the young man well.D.The President cleverly refused the woman.(B)
A young soldier was having a conversation one day with Abraham Lincoln.They were discussing the difficulties of fighting a war and the various types of weapons a man might use against the enemy.The young man was very eager to hear President Lincoln’s ideas on how to win the war.“You know,” said Lincoln, “after all these years, I have discovered the best way to destroy the enemy.”
“What is that, Mr President?” asked the young soldier.“It' s very simple,” said Lincoln, “Make him your friends.”
6.What were Lincoln and the soldier doing one day?
A.They were talking about something about a war.B.They were discussing the ideas on how to win a war.C.They were discussing the best way to destroy the enemy.D.They were making friends with each other.7.From this passage we know that Lincoln was _______.A.cruel to his men
B.friendly to his men
C.sorry for his men
D.worried about his men
8.“After all these years, I have finally discovered the best way to destroy the enemy.” This sentence tells us that the President ______.A.had been a soldier before he became President
B.liked wars very much
C.hated wars very much
D.was good at conclusion
9.Lincoln said, “It is very simple,” That means _______.A.to fight a war is very simple
B.to use the weapons is very simple
C.to find a way to wipe out the enemy is very simple
D.to make the enemy your friend is very simple 10.The last sentence of this passage shows _____.A.Lincoln’s eagerness to destroy the enemy
B.The soldier’s idea of winning a war
C.Lincoln’s discovery
D.Lincoln’s wisdom and kindness Keys: l~5 BACBD
6~10 ABDCD
四、書面表達
請你為《北京周報》寫一篇英文報導,介紹林肯生平,字數約120字,要點如下:
1.亞伯拉罕·林肯是美國歷史上最偉大的總統之一;
2.他出身貧寒,只上過一年學,他喜歡讀書;
3.他業余時間學習法律,并成為一名律師;想要建立一個人人自由的國家;
4.他強烈反對奴隸制;
5.他1860年當選美國總統;
6.美國內戰爆發,在他的領導下(Under his leadership),北方贏了,結束了持續四年的美國內戰,奴隸們獲得了自由;
7.就在他第二次當選美國總統后不久,林肯被他的敵人殺害了;
8.人民將永遠懷念他。答案:
Abraham Lincoln was born in a poor family.He had little schooling though he liked reading very much.As a young man, he spent his spare time studying laws and became a lawyer.He was strongly against slavery and wanted to build a free state for all people.In 1860, he became President of the United States.Soon the American Civil War broke out.Under his leadership, the north won the war which lasted four years.All the slaves were set free.However, Lincoln was killed by his enemies soon after he became President for the second time.The whole country was very sad at the news of his death.Abraham Lincoln is now considered as one of the greatest of all American presidents and will be remembered forever.
第五篇:高一習題英語課時作業26
(選修六·Unit 1)
Ⅰ.單項填空
1.All the students are looking forward to the first ________ to take the College Entrance Examinations.A.measureB.attempt
C.purposeD.desire
答案:B
2.Anyone who is in ________ of weapons without permission is considered law-breaking.A.commandB.control
C.chargeD.possession
答案:D
3.It took us several hours to make the old man ________ of the safety of travelling by air.A.believedB.convinced
C.informedD.persuaded
答案與解析:B 句意:我們花了好幾個小時才使那位老人相信了乘飛機的安全性。convince “使信服,說服”。A項,“相信”;C項,“告知”;D項,“說服”,常用persuade sb.to do...說服某人做??。
4.The author was required to submit an ________ of about 200 words together with his research paper.A.editionB.editorial
C.articleD.abstract
答案與解析:D 要求作者連同科研論文一起呈交一篇大約200字的摘要。abstract 意為“摘要”;edition意為“版本”;editorial 意為“社論”;article意為“文章”。同論文一起使用的詞只有D項“摘要”。
5. While income worry is ________ rather common problem of the aged, loneliness is another problem that ________ aged parents may face.A.a;/B.the;/
C.a;theD.the;the
答案:A
6.—How I wish I had studied harder when I was in senior school!
—If you had,you ________ a university student now.A.areB.would be
C.shouldD.were
答案:B
7.It's high time that you ________ even harder at your lessons as the exam is around the corner.A.workB.will work
C.workedD.have to work
答案:C
8.—How do you find this new movie?
—It's ________ interesting than expected.A.a great deal muchB.a great deal of more
C.a great deal of muchD.a great deal more
答案與解析:D a great deal可用來修飾形容詞、副詞的比較級;a great deal of后跟不可數名詞。
9.If it were not for the fact that I ________ very busy,I would go with you.A.amB.was
C.wereD.should be
答案與解析:A 分析語境可知,“我很忙”是表示目前的真實情況,因此應用真實語氣。
10.The sooner we students ________ to the new school,the better it will be ________ our studies.A.adapt;forB.adjust;to
C.adopt;forD.admit;to
答案與解析:A adapt和adjust都有“(使)適應”的意思,但后跟to表示“適應于”,跟for表示“適用的目的”;adopt采用,收養;admit容許,承認,接納。句意:我們學生對新學校適應得越快,對我們的學習就越有利。
11.You must keep the news a secret and don't put it ________ anybody else.A.in possession ofB.in the possession of
C.in charge ofD.in the charge of
答案與解析:B A項和C項的邏輯主語是人,分別表示“某人占有”和“某人負責某事”,含有主動意義;而B項和D項的邏輯主語是物,分別表示“被某人所占有”和“由某人負責”,具有被動意義。根據句子的意思應該選B。
12.The present situation is very complex,so I think it will take me some time to ________ its reality.A.make upB.figure out
C.look throughD.put off
答案與解析:B 考查動詞短語。句意:現在的情形太復雜了,因此我想我要花點時間弄清楚真實情況。make up組成,彌補;look through快速閱讀,審核;put off推遲;figure out想出來,弄清楚。B項符合題意。
13.Why does teaching as a career ________ many people?
A.apply forB.attract to
C.appeal toD.agree with
答案與解析:C appeal to對??有誘惑力。句意:為什么教育作為一項事業吸引了這么多人呢?apply for申請;attract吸引,attact sb./sth.to把??吸引到??;agree with同意。
14.She's aiming ________ a scholarship.That is why she has been focusing her mind ________ her work.A.at;onB.to;on
C.for;inD.at;into
答案與解析:A aim at,focus one's mind on sth.為固定搭配。句意:她的目標是獲得獎學金,這就是她為什么專心學習的原因。
15.They didn't buy the car.________,they didn't like its color;________,it was too expensive.A.For one thing;for another
B.For one thing;but also
C.On the one hand;for another hand
D.For the one hand;on the other hand
答案與解析:A 一方面,另一方面,除了用“on the one hand...on the other hand”,還可以用“for one thing...for another”來表示。
Ⅱ.閱讀理解
A primary school teacher who left a class of 25 pupils in tears after she told them Santa Claus,the supply teacher said out suddenly,“It's your parents who leave out presents on Christmas Day.”
The class of seven-year-olds at Blackshaw Lane Primary School,Royton,Greater Manchester burst into tears and told their parents when they arrived home.Mothers and fathers then complained about the incident and were sent a letter by the school saying the teacher,who only worked at the school for one day last week,has been disciplined.The school has now said it will not hire her again.One father said,“My son came home and said that his teacher had told the class that Santa doesn't exist and it's their mum and dad that put out presents for them.Obviously,they were all talking about Christmas and being a bit rowdy.She just came straight out with it.”
“My son was in tears and so was everyone else in the class—especially as it was so close to Christmas.I thought it was wrong.He was crazy about it.He's only seven years old and it's part of the magic ofChristmas to him.”
“We told him that she did not believe in Father Christmas because of her religion and he's fine now.”
“The father described the incident as ‘shocking’ and believed it was done with malicious intent(惡意地).A lot of parents were angry and complained to the school.The teacher,who was supplied by Rochdale and Oldham Supply Agency,is still listed and will work with other schools,”the agency said.However,the head teacher in Angela McCormick refused to comment on the incident.1.Who felt the angriest about the incident?
A.The teacher who was fired.B.The pupils who were in tears.C.The parents whose children cried.D.Santa Claus the teacher talked about.答案與解析:C 細節理解題。根據文章第二段最后一句“Mothers and fathers then complained about the incident and were sent a letter by the school saying the teacher,who only worked at the school for one day last week,has been disciplined.”可得出答案。”
2.The seven-year-old children cried because of ________.A.their teacher's leaving
B.the letters by the school
C.something about Santa Claus
D.the presents left out by the parents
答案與解析:C 細節理解題。根據第四段可知當孩子們聽到老師說“圣誕老人并不存在”時,使得孩子們很失望,因此孩子們到家后向父母哭訴。
3.We can infer from the passage that ________.A.the teacher was fired and couldn't continue her career in teaching
B.the parents complained about the discipline of the school
C.the little pupils felt disappointed after hearing the news told by the teacher
D.in reality,Santa Claus exists and gives out presents once a year.答案與解析:C 推理判斷題。由第二段可知,當小學生們從老師那里聽到有關圣誕老人的事情時,他們變得很失落,有很多孩子都哭了。
4.What's the meaning of the underlined word“rowdy”?
A.Surprised.B.Noisy.C.Discouraged.D.Annoyed.答案與解析:B 詞義猜測題。根據第一段該詞所在的句子可知,一提到圣誕老人孩子們就很興奮,當然就會亂哄哄地談論此事,故選擇B項,意為“亂哄哄,嘈雜的”。
Ⅲ.篇章結構
Shoppers who carefully plan their visit to the grocery store can save money on their grocery Shoppers should visit the grocery,store on a full stomach by scheduling their trip immediately after a large meal.If that's not possible,they should find something healthy to eat Although having a list and sticking to it is the most important factor in saving money,shoppers must prepare lists wisely in order to Many special buys are announced through the local newspapers,so buying the“grocery issue”is worth the investment(投資).However,it's important to remember that many newer,more expensive products first offered through coupons may not produce enough savings for shoppers to give up the product they usually buy.,the shopper who wants to save money should follow a few more rules.The shopper should not stay longer than necessary,because bills go up each minute the shopper is in the store.So,grocery list is a short one,some shoppers choose to use the small hand-held basket instead of the roomy grocery cart.A.A carefully,planned list should include in-season produce and any items on sale or discounted through coupons(優惠券).
B.Of course,the shopper should stick strictly to the shopping list and resist the temptation to buy additional items.C.People who are full are less tired and more likely to buy what they want.D.Now that the shopper has completed the grocery list,it's time to leave for the store.E.You shouid keep your shopping list carefully in case you can exchange it for coupons.F.Most shoppers are less persuaded to buy extra goods when they are not hungry.G.Shopping when not hungry,sticking to a grocery list,and following a few simple rules will cut down the grocery bill.答案:1.G 2.F 3.A 4.D 5.B
Ⅳ.短文改錯
Before I came to Finland to attend this meeting two weeks before.I had no ideas what kind of clothes I should take along.Fortunately,my friend Julia had gone to Northern Europe.Yes,she was a great help.She bought for me some warm suits and dresses,business type of clothes,of course,of dark colour.She also bought me some skirts and blouses so that I could wear same colthes in several ways.Live coloured dresses would give me a nicer change time to time.She also helped me to choose a very warm raincoat and a pair of boots.Oh,how luck I am to have such a helpful friend.He saved me a lot of trouble.答案:
Before I came to Finland to attend this meeting two weekswhat kind of clothes I should take along.Fortunately,my friend Julia hadto Northern Europe.Yes,she was a great help.She boughtfor me some warm suits and dresses,business type of clothes,of course,of dark ∧same the
coloured dresses would give me a nicer change ∧time to time.She from
also helped me to choose a very warm raincoat and a pair of boots.Oh,how I am to havesaved me a lot of trouble.