必修3寒假复习巩固训练-练习版
必修3寒假复习巩固训练-解析版
第16练算法与程序框图一、选择题1．下列叙述中，不能称为算法的是（）A．植树需要运苗、挖坑、栽苗、浇水这些步骤B．按顺序进行下列运算：1+1=2，2+1=3，3+1=4，…，99+1=100C．从济南到北京旅游，先坐火车，再坐飞机抵达D．3x>x+1【答案】D【解析】算法、程序是完成一件事情的操作步骤．可得：①，②，③为算法，④，没有明确的规则和步骤，所以不是算法．故选D．2．下列叙述能称为算法的个数为（）①植树需要运苗、挖坑、栽苗、浇水这些步骤；②按顺序进行下列运算：1+1=2，2+1=3，3+1=4，…，99+1=100；③从枣庄乘火车到徐州，从徐州乘飞机到广州；④3x>x+1；⑤求所有能被3整除的正数，即3，6，9，12，…．A．2 B．3 C．4 D．5【答案】B【解析】算法、程序是完成一件事情的操作步骤．可得：①，②，③为算法，④，⑤没有明确的规则和步骤，所以不是算法．可得能称为算法的个数为3．故选B．3．程序框图符号“”可用于（）A．赋值a=6 B．输出a=5 C．输入a=5 D．判断a=6【答案】D【解析】程序框图符号“”是判断框，功能是判断某一条件是否成立，成立时在出口处标明“是”或“Y”；不成立时在出口处标明则标明“否”或“N”．所以可用于判断a=6？故选D．4．如图的框图是一古代数学家的一个算法的程序框图，它输出的结果S表示（）A．a0+a1+a2+a3的值B．a3+a2x0+a1x02+a0x03的值C．a0+a1x0+a2x02+a3x03的值D．以上都不对【答案】C【解析】模拟程序框图的运行过程，如下；输入a0，a1，a2，a3，x0，k=3，S=a3，k>0，是，k=2，S=a2+S•x0=a2+a3x0；k>0，是，k=1，S=a1+S•x0=a1+（a2+a3x0）x0=a1+a2x0+a3x02；k>0，是，k=0，S=a0+S•x0=a0+a1x0+a2x02+a3x03．k>0，否，输出S=a0+a1x0+a2x02+a3x03．故选C．5．某程序框图如图所示，若运行该程序后输出S=（）A．53B．74C．95D．116【答案】D【解析】模拟执行程序框图，可得S=1，n=1，不满足条件n>5，S=112+，n=2，不满足条件n>5，S=11126++，n=3，不满足条件n>5，S=11112612+++，n=4，不满足条件n>5，S=11111 261220++++，n=5，不满足条件n>5，S=111111 26122030+++++，n=6，满足条件n>5，退出循环，输出S的值．由于S=11111111 261220306+++++=．故选D．6．阅读如图所示程序框图，运行相应的程序，若输入x=1，则输出的结果为（）A．﹣1 B．2 C．0 D．无法判断【答案】B【解析】因为输入的x值为1大于0，所以执行y=2x=2，输出2．故选B．二、填空题7．阅读程序框图，运行相应的程序，则输出的值为_________．【答案】4【解析】第一次循环，i=1，a=2；第二次循环，i=2，a=2×2+1=5；第三次循环，i=3，a=3×5+1=16；第四次循环，i=4，a=4×16+1=65>50，退出循环，此时输出的值为4，故答案为：4．8．给出如图的程序框图，程序输出的结果是_________．【答案】55【解析】由已知变量初始值为：i=1，累加变量S=0；每次变量i递增1，而i≤10时执行程序，i>10就终止循环，输出S，因此有S=1+2+3+4+…+10=55．故答案为：55．第17练 基本算法语句一、选择题1．根据下面的算法语句，当输入x 为60时，输出y 的值为（ ）A ．25B ．30C ．31D ．60【答案】C【解析】分析程序中各变量、各语句的作用，根据流程图所示的顺序可知：该程序的作用是计算并输出分段函数y ()0.550250.65050x x x x ≤⎧=⎨+-⎩，，＞的函数值；当x=60时，y=25+0.6×（60﹣50）=31．故选C．2．阅读如图所示的程序，则运行结果为（）A．1 B．2 C．5 D．7 【答案】C【解析】阅读如图所示的程序知，该程序运行结果为计算x=2×2﹣1=3，y=3+2=5，输出y=5．故选C．3．下面一段程序执行后的结果是（）A．6 B．4 C．8 D．10 【答案】A【解析】模拟程序的运行，可得：a=2，a=4，a=6，输出a的值为6．故选A．4．执行如图程序，如果输入的a=5，b=3，那么输出的结果为（）A．5，3 B．3，5 C．3，3 D．5，5 【答案】B【解析】模拟程序的运行，可得a=5，b=3，满足条件a>b，执行循环体，c=5，a=3，b=5，不满足条件a>b，退出循环，输出a的值为3，b的值为5．故选B．5．如图是一个求20个数的平均数的程序，在横线上应填充的语句为（）A．i≥20 B．i≥21 C．i>21 D．i<20【答案】B【解析】算法语句中的循环语句表示形式有2种：①Do…Loop 语句，条件不成立执行循环体，条件成立退出循环．②while结构循环为当型循环（whentypeloop），条件成立执行循环体，条件不成立退出循环．代入选项可知，仅B正确，故选B．6．如图的程序运行后输出的结果为（）A．﹣17 B．22 C．25 D．28【答案】B【解析】模拟程序语言的运行过程知，x=5，y=﹣20；x≥0，y=﹣20+3=﹣17；输出x﹣y=5﹣（﹣17）=22．故选B．7．如图所给的程序，其循环体执行的次数是（）A．49 B．50 C．100 D．99 【答案】B【解析】第一次执行循环体后：S=1，i=3，不满足退出循环的条件；再次执行循环体后：S=1+3，i=5，不满足退出循环的条件；再次执行循环体后：S=1+3+5，i=7，不满足退出循环的条件；…观察规律可知：再次执行循环体后：S=1+3+5+…+97，i=99，不满足退出循环的条件；再次执行循环体后：S=1+3+5+…+97+99，i=101，满足退出循环的条件；由循环变量的初值为1，终值为99，步长为2，故此循环共执行了：9912-+1=50次，故选B．二、填空题8．下面程序的运行结果是_________．【答案】10【解析】模拟程序的运行过程，如下，i=1，S=0，满足条件i<4，执行循环体，S=1，i=2，满足条件i<4，执行循环体，S=3，i=3，满足条件i<4，执行循环体，S=10，i=4，此时，不满足条件i<4，退出循环，输出S的值为10．故答案为：10．9．计算机执行如图所示的程序，则输出的S的值为_________．【答案】120【解析】模拟程序的运行过程知，该程序运行后计算并输出S=S=6×5×4=120，i=3时程序结束．故答案为：120．三、解答题10．阅读下列程序．回答问题：（1）此程序的功能是求函数_________________的函数值．（2）若输出y的值是25，则输入的x应该是多少？【答案】（1）22(1)0(1)0x xyx x⎧+=⎨-≥⎩，＜，．（2）输入的x的值为6，或﹣6．【解析】（1）分析程序中各变量、各语句的作用，再根据图所示的顺序，可知该程序的作用是计算分段函数y=f（x）22(1)0(1)0x xyx x⎧+==⎨-≥⎩，＜，的函数值，∴此程序的功能是求函数22(1)0(1)0x xyx x⎧+=⎨-≥⎩，＜，的函数值．故答案为：22(1)0(1)0x xyx x⎧+=⎨-≥⎩，＜，．（2）①当x<0时，y=（x+1）2=25，解得：x=﹣6，或4（舍去）；②当x≥0时，y=（x﹣1）2=25，解得：x=6，或﹣4（舍去），故综上可知输入的x的值为6，或﹣6第18练算法案例一、选择题1．将五进制数42（5）化为十进制数为（）A．10 B．22 C．110 D．1010【答案】B【解析】五进制”数为42（5）转化为“十进制”数为4×51+2=22．故选B．2．下列四个数中，数值最小的是（）A．25（10）B．54（6）C．10110（4）D．10111（2）【答案】D【解析】54（6）的十进制为：5×61+4×60=34；10110（4）的十进制为：1×44+0×43+1×42+1×41+0×40=276；10111（2）的十进制为：1×24+0×23+1×22+1×21+1×20=23；∵23<25<34<276，故选D．3．用秦九韶算法计算函数f（x）=x4﹣2x2+x﹣1，当x=1时的值，则v3=（）A．﹣2 B．﹣1 C．0 D．1【答案】C【解析】用秦九韶算法计算函数f（x）=x4﹣2x2+x﹣1=（（（x）x﹣2）x+1）x﹣1，当x=1时的值，则v0=1，v1=1，v2=1﹣2=﹣1，v3=﹣1+1=0．故选C．4．自然界中具有两种稳定状态的组件普遍存在，如开关的开和关、电路的通和断等，非常适合表示计算机中的数，所以现在使用的计算机设计为二进制计算机．二进制以2为基数，只用0和1两个数表示数，逢2进1，二进制数同十进制数遵循一样的运算规则，它们可以相互转化，如987610(521)12020202=⨯+⨯+⨯+⨯+0×25+0×24+1×23+0×22+0×21+1×20=（1000001001）2．我国数学史上，对数制研究不乏其人，清代汪莱的《参两算经》是较早系统论述非十进制数的文献，总结出了八进制乘法口决：7×7=61，7×6=52，7×5=43，…，请类比二进制与十进制转化的运算，数（1010011100）2对应八进制数为（）A ．（446）8B ．（1134）8C ．（1234）8D ．（4321）8【答案】C【解析】（1010011100）2=1×22+1×23+1×24+1×27+1×29=668， 668÷8=83…4， 83÷8=10…3， 10÷8=1…2， 1÷8=0…1，故668（10）=1234（8），故选C ．5．计算机中常用十六进制是逢16进1的计数制，采用数字0～9和字母A ～F 共16个计数符号，这些符号与十进制的数的对应关系如表： 16进制 0 1 2 3 4 5 6 7 8 9 A B C D E F 10进制123456789101112131415现在，将十进制整数2019化成16进制数为（ ） A ．7E3 B ．7F3C ．8E3D ．8F3【答案】A【解析】2019÷16=126…3， 126÷16=7…E ， 7÷16=0…7，把余数从下往上排序：7E3．即（2019）10=（7E3）8．故选A ． 6．利用秦九韶算法求f （x ）=x 5+x 3+x 2+x +1当x =3时的值为（ ） A ．121 B ．283C ．321D ．239【答案】B【解析】依题意f （x ）=x 5+x 3+x 2+x +1=（（（（x ）x +1）x +1）x +1）x +1 当x =3时，v 0=1， v 1=3+0=3，v2=3×3+1=10，v3=3×10+1=31，v4=3×31+1=94，v5=3×94+1=283．故选B．二、填空题7．用“辗转相除法”求得119和153的最大公约数是_________．【答案】17【解析】153=119×1+34，119=34×3+17，34=17×2．∴153与119的最大公约数是17．故答案为：17．8．用秦九韶算法求多项式f（x）=4x5+2x4﹣3x2+1，当x=3时，v3=_________．【答案】123【解析】∵f（x）=4x5+2x4﹣3x2+1=（（（（4x+2）x）x﹣3）x）x+1，当x=3时，V0=4，V1=4×3+2=14，V2=14×3=42，V3=42×3﹣3=123，故答案为：123．9．二进制数学1101101（2）转化为十进制数为_________．【答案】109【解析】二进制数1101101（2）=1×26+1×25+0×24+1×23+1×22+0×21+1×20=109．故答案为：109．10．三进制数2012（3）化为六进制数为abc（6），则a+b+c=_________．【答案】9【解析】“三进制”数为2012（3）转化为“十进制”数为：2×33+0×32+1×31+2=59．将十进制数59转化为6进制数：59÷6=9…5，9÷6=1…3，1÷6=0…1，∴将十进制59化为6进制数是135（6），则a+b+c=9．故答案为：9．三、解答题11．分别用辗转相除法和更相减损术求282与470的最大公约数．【答案】470与282的最大公约数为94．【解析】辗转相除法：470=1×282+188，282=1×188+94，188=2×94，∴282与470的最大公约数为94．更相减损术：470﹣282=188，282﹣188=94，188﹣94=94．∴470与282的最大公约数为94．第19练随机抽样一、选择题1．福利彩票“双色球”中红色球由编号为01，02，…，33的33个球组成，某彩民利用下面的随机数表选取6组数作为6个红色球的编号，选取方法是从随机数表（如下）第1行的第6列数字开始由左到右依次选取两个数字，则选出来的第2个红色球的编号为（）49 54 43 54 82 17 37 93 23 78 87 35 20 96 43 84 17 34 91 6457 24 55 06 88 77 04 74 47 67 21 76 33 50 25 83 92 12 06 76A．32 B．48 C．37 D．23【答案】A【解析】从随机数表第1行的第6列数字开始，由左到右依次选取两个数字，则选出来的第1个数是21，第2个红色球的编号是32．故选A．2．高三某班有34位同学，座位号记为01，02，…，34，用下面的随机数表选取5组数作为参加青年志愿者活动的五位同学的座号．选取方法是从随机数表第一行的第6列和第7列数字开始，由左到右依次选取两个数字，则选出来的第4个志愿者的座号为（）495443548217379323788735209643842634916457245506887704744767217633502583921206 A．23 B．09 C．16 D．02【答案】C【解析】根据题意利用随机数表法，依次抽取的样本数据为：21，32，09，16，17；所以第4个数据是16．故选C．3．有200人参加了一次会议，为了了解这200人参加会议的体会，将这200人随机号为001，002，003，…，200，用系统抽样的方法（等距离）抽出20人，若编号为006，036，041，176，196的5个人中有1个没有抽到，则这个编号是（）A．006 B．041 C．176 D．196【答案】B【解析】间隔为10，共有20组，故首次抽到的号码是006号，以后每隔10个号抽到一人，构成a n=10n ﹣4的一组等差数列，n=1，2，…，20，只有041，不符合条件，故选B．4．从编号为001，002，…，400的400个产品中用系统抽样的方法抽取一个容量为16样本，已知样本中最小的编号为007，则样本中最大的编号应该为（）A．382 B．483 C．482 D．483【答案】A【解析】样本间距为400÷16=25，首位编号为007，后面依次为007+25×1，007+25×2，…007+25×15，则最后的编号为007+25×15=382，故选A．5．某公司在甲、乙、丙、丁四个地区分别有150，120，180，150个销售点．公司为了调查产品销售情况，需从这600个销售点中抽取一个容量为100的样本．按照分层抽样的方法抽取样本，则丙地区抽取的销售点比乙地区抽取的销售点多（）A．5个B．8个C．10个D．12个【答案】C【解析】依题意，四个地区共有150+120+180+150=600人，从中抽取100人，所以抽样比为1001 6006=，所以丙地区抽取的销售点有18016⨯=30个，乙地区抽取的销售点有12016⨯=20个，故丙地区抽取的销售点比乙地区抽取的销售点多30﹣20=10个，故选C．二、填空题6．某校有高级教师90人，一级教师120人，二级教师75人，现按职称用分层抽样的方法抽取38人参加一项调查，则抽取的高级教师的人数为_________．【答案】12【解析】根据分层抽样原理知，样本容量是38，则应抽取的一级教师人数为：38909012075⨯=++12．故答案为：12．7．某校为了解学生的身体素质情况，采用按年级分层抽样的方法，从高一、高二、高三学生中抽取一个300人的样本进行调查，已知高一、高二、高三学生人数之比为k：5：4，抽取的样本中高一学生为120人，则实数k的值为_________．【答案】6【解析】依题意，样本容量为300，高一学生抽取样本120，所以高二高三共抽取300﹣120=180，所以12018054k=+解得k=6．故答案为：6．8．某中学采用系统抽样方法，从该校高三年级全体800名学生中抽50名学生做牙齿健康检查．现将800名学生从1到800进行编号．已知从33～48这16个数中取的数是42，则在第1小组1～16中随机抽到的数是_________．【答案】10【解析】某中学采用系统抽样方法，从该校高三年级全体800名学生中抽50名学生做牙齿健康检查．抽样间隔f80050==16，现将800名学生从1到800进行编号．已知从33～48这16个数中取的数是42，则在第1小组1～16中随机抽到的数是42﹣33+1=10．故答案为：10．9．某校高三年级共有25个班，学校心理咨询室为了解同学们的心理状况，将每个班编号，依次为1到25，现用系统抽样的方法抽取5个班进行调查，若抽到的编号之和为60，则抽到的最小编号为_________．【答案】2【解析】根据题意知系统抽样的抽取间隔为25÷5=5；设抽到的最小编号为x，则x+（5+x）+（10+x）+（15+x）+（20+x）=60，解得x=2．故答案为：2．10．总体由编号为01，02，…，19，20的20个个体组成．利用下面的随机数表选取5个个体，选取方法从随机数表的第1行第4列数由左到右由上到下开始读取，则选出来的第4个个体的编号为_________．第1行78 16 65 71 02 30 60 14 01 02 40 60 90 28 01 98第2行32 04 92 34 49 35 82 00 36 23 48 69 69 38 74 81 【答案】04【解析】第1行第4列数向右取数，满足条件的数为02，14，01，04，则第4个个体的编号为04，故答案为：04．三、解答题11．为了了解某校学生课外时间的分配情况，拟采用分层抽样的方法从该校的高一、高二、高三这三个年级中共抽取5个班进行调查，已知该校的高一、高二、高三这三个年级分别有18、6、6个班级．（1）求分别从高一、高二、高三这三个年级中抽取的班级个数；（2）若从抽取的5个班级中随机抽取2个班级进行调查结果的对比，求这2个班级中至少有1个班级来自高一年级的概率．【答案】（1）从高一、高二、高三这三个年级中抽取的班级个数分别为3，1，1；（2）P9 10 =．【解析】（1）班级总数为18+6+6=30，样本容量与总体中的个体比为51 306=．∴从高一、高二、高三这三个年级中抽取的班级个数分别为3，1，1；（2）设A1，A2，A3为在高一年级中抽取的3个班级，B为在高二年级中抽取的班级，C为在高三年级中抽取的班级，从这5个班级中随机抽取2个，全部的可能结果是：（A1，A2），（A1，A3），（A1，B），（A1，C），（A2，A3），（A2，B），（A2，C），（A3，B），（A3，C），（B，C），共10种，这2个班级中至少有1个班级来自高一年级的一共有9种，则所求概率P9 10 =．。
新教材高中英语人教版必修第三册巩固练习：Unit 4 Section Ⅲ【含解析】
SectionⅢListeningandTalking,ReadingforWriting,AssessingYourProgress&VideoTime一、单句语法填空1.The heated (argue) excited everyone present at the meeting.2.(globe) warming is a real problem.3.I’m really curious his life in space.4.Exploring space has already made difference in the fight against world hunger.5.As a result the weather,all the crops grow well.6.The greatest attention at present is Mars because it is closer to Earth.7.Exploring space provides the world many different benefits.8.Luckily,there is a student acting a space expert.二、句型转换1.The salesman persuaded me to buy the red dress at last.→The salesman me the red dress at last.2.He didn’t take part in the activity because of his injured foot.→He didn’t take part in the activityhis injured foot.3.The time is running out so we must take action.→With the time ,we must take action.4.Luckily,the company provides us with facilities for teaching.→Luckily,the company provides facilities for teaching .5.There is no doubt that the experiment is right.→the experiment is right.三、阅读理解My sister and I were flying by ourselves from our home in Kansas to a summer camp in Minnesota.Our plane had a two-hour stop at the airport in Omaha,Nebraska.A flight attendant took us to a souvenir shop,where a toy airplane looked just like the plane my sister and I were flying on.I really wanted that airplane.I had $10 and the plane cost $8.I had no idea what I needed to buy at camp,but I bought the plane anyway.When we reached the camp,I discovered that there were no showers!Instead,we bathed in a lake every night.I needed to buy special soap because the regular soap I brought had chemicals that could harm the fish.The special soap cost $4 at the campstore.However,I had only $2 left.What upset me was that I couldn’t get clean without the soap,which was soon found by my teacher,Sally.I had to tell her that I had spent most of my money on a toy airplane.She laughed and explained to me that a budget was necessary and it was a plan for spending money to help make sure you set aside enough for things you need,likesoap,before you buy fun things,like toys.Sally gave me one of her extra(额外的) bottles of special soap.When I returned home,I decided to budget.I spent several weeks writing down everything I bought,just to get an idea of how I was already spending my money.Then I made my first weekly budget.My budget wasn’t always the same each week.For some weeks,I would have more in my “Money In” account because I did some jobs around the house.Once summer vacation started,I didn’t need to buy school lunches,so I had extra money to go to the neighbourhood swimming pool.Budgeting was hard,sometimes.Whatever week it was,I always made sure that “MoneyIn”equalled“Save and Spend”.That’s called making ends meet,and it’s how you make sure that the money you have will always be enough to cover your plans to spend and save.1.Why did Sally give the writer one bottle of her special soap?A.The writer’s usual soap did harm to his skin.B.The writer needed to take showers at the camp.C.The writer turned to Sally for it to get clean.D.The writer’s money couldn’t cover the special soap.2.What did the writer learn about at the camp?A.Spending and saving money.B.Getting along with others.C.Making more money.D.Planning his daily life.3.What can be the best title for the text?A.My Summer CampB.My Weekly BudgetC.My Special SoapD.My Lonely Flight四、七选五阅读理解Every new person added to the planet needs food,water,clothes,and so on.1.Those things require extra natural resources,including land and water.But Earth’s riches are limited.Less than 1 percent of Earth’s water can be used for drinking and washing.One out of every thirteen people around the world does not always have enough clean water.2.Too many people are using too much water,especially in the already dry areas of the southwestern United States.Food shortages(不足)are even more common.Worldwide,one out of every seven people does not get enough to eat.3.Over time,the soil loses its nutrients(营养) and the farmland becomes useless for growing food.As the world becomes more crowded(拥挤的),more land is needed to make way for growing cities.4.That’s a problem because trees help take in a gas called carbon dioxide.Humans produce carbon dioxide by burning coal and oil.Fewer trees mean more carbon dioxide in the atmosphere.The buildup of carbon dioxide traps heat and pollution above Earth.5,although every person uses the planet’s resources.The richest billionpeople,Americansespecially,use the most resources.They also produce the most waste.A.Forests are cleared awayB.Some people use a lot more than othersC.Water shortages have hit many parts of the worldD.Water pollution is a serious problem in some areasE.More trees should be planted to handle air pollutionF.Huge needs for food force farmers to overuse their landG.More people mean more cars,roads,schools,hospitals,and stores五、语篇填空A few months ago I left my hometown for Canada to study.I felt nervous because I was going to 1.new place with new people.What worried me at first was that I couldn’t speak English 2.(fluent),and I also couldn’t understand 3.(they)customs.Everything was different 4.my own country.I had to deal with everything alone.It was a sad moment 5.I had to say goodbye to my family and friends at the airport.Suddenly,I felt unwilling 6.(leave) my hometown because I grew up there and had wonderful 7.(memory) of the familiar place.However,I know studying abroad was a 8.(decide) that I made myself.I had to accept the challenge.By now I 9.(get)used to the new life here already,though I’m looking forward to 10.(spend) the coming vacation with my old friends back home.六、选词创境运用下列写作词汇,自己创设一个语境,形成一个小语段。
2019人教版高中英语必修三词汇复习巩固练习
Name____________ Class_________I.词形转换(40%)1.These white buildings are in the river and their are very beautiful. (reflect)2. He often says that he doesn’t believe in any but meanwhile he respects others’ ________________ freedom. (religion)3. I am writing to express my ________________(grateful) for what you have done for me.4. We all consider the scenery ________________(please) and we are all ________________(joy) to talk with our previous teachers.We talked and talked, laughing ________________(merry).5. Their responses to the questions reflected their true ________________(believe) that “I can see you only if you can see me, too.”6. He won the ________________ and was ________________ president of the country.(elect)7. The storm ___________ to hit our city, and we will observe the __________ of it closely. (tend)8. It was a story and children were after they heard it. (scare)9. Their main ________________(complain) is that the prices of a wide range of daily goods have risen ________________(sharp) in the past days.10. Humor can make one ________________(energy) in his work, study, and life.11. The workers are ________________ the bridge damaged by the flood now, and the bridge under ________________ connects the road with the town.(construct)12. People from ________________ cultures hold different understandings of the play and this ________________of opinions makes it hard to reach an agreement at the meeting. (diverse) 13. She is a ________________ girl, so we know that once she has ________________ to do something, she will make her dream come true with great ________________. (determine)14. A person’s life is ________________ but knowledge is ________________.(limit)15. There was a heated ________________ about whether he was suitable for the position,and most of the people ________________ for him.(argue)16. Judging from his _______________ look, his boss was ______________ with his _______________ performance. So to his ______________, he didn’t get promoted. (disappoint) 17. The rich man went abroad with the ________________ of trying his fortune, while the poor man ________________ to learn some skills of earning money.(intend)18. I’m writing to express my heartfelt ________________(apologise) to you for my failing to hang out with you this weekend as scheduled.19. The doctor was ________________ with his________________. Whenever they made mistakes, he pointed them out with _______________ and never shouted at them _____________.(patient) II.单句语法填空(40%)1.I feel it no use ________________(complain); instead, I should take action immediately.2.In response to your last letter, I make sure that I will assist you your oral English. Firstly, I will assist you ________________(correct) your pronunciation.3.Then I got to the point ____________I was staying up really late at night to get my work done.4.Dr Yuan Longping became the first agricultural pioneer in the world ________________(grow) rice that has a high output.5.The majority of residents in Chinatown are still ethnic Chinese, many of ___________ do not speak English fluently.this can be organized in the future.7.Afterwards, he had to admit __________ (put) some poisonous mushrooms in the soup.8.It is said that he narrowly escaped ____________ (kill) in the traffic accident the other day.9.Having settled into a beautiful village, he settled down to ____________(do) his research.10.He desired that measures ____________(take) to stop pollution.11.____________(lack) confidence and experience, Jane was quite at a loss as to how to deal with the terrible situation.12.She tried her best to make herself____________ (hear) clearly while delivering the speech.13.It’s good manners ____________(bring) a gift, such as a bunch of flowers, when you visit a Chinese friend.14.No one is permitted _________(take) photos of the exhibits in the museum without permission.15.Hardly had the police received the emergency call ____________they rushed to the scene.16.I found myself ____________ (touch) by his action,tears clouding my eyes.17.If you have any questions, don’t hesitate ____________(ask) me.18.Today, we’ll discuss a number of cases ____________beginners of English fail to use the language properly.19.The opera has a large audience, ____________(range) from children to grandparents.III. 用适当的介词填空(20%)1. I’d like to offer my sincere congratulations to you ______ your winning first place in the English Speech Competition.2. I am grateful to you ______ decorating our classroom for the graduation ceremony.3. It’s typical ______ our maths teacher to be very patient with us. Never have I seen her get angry because we can’t understand what she says.4. Don’t be afraid of mistakes. You have to learn by reflecting ______ them.5. I hope airlines can show more respect ______ passengers and improve service.6. I overslept this morning because my alarm clock didn’t go ______. With little time left, I had to give up dressing ______ for the party.7. Appointed ______headmaster of the school, he spared no effort to improve its teaching quality.8. Ehlers eventually succeeded in coaxing (哄) the animal to him. Nervousness and fear were replaced ________ joy.9. One day I got word that he was admitted ______ hospital for a serious disease.10. A perfect idea occurred ______ us that we could give a handmade gift to our teacher for Teachers’ Day.11. The Internet has brought ______ great changes in the way we learn.12. He often argues ______ his son ______ recycling water so as to cut down the water bill.13. She found a box lying on the table with a card attached______ it, saying “Happy birthday”.14. Lacking physical exercise resulted ______ poor health.However, people are beginning to attach much more importance _______ their health than ever before.15. The policeman on duty caught a thief ______the spot in my house, and in return, I bought a bunch of flowers for him.16. To be honest, I hesitated _________ the option between the two dresses.17. Prices of these toys range __________ $7 and $10, which is quite affordable for average families.Name____________ Class_________I.词形转换(40%)1.These white buildings are reflected in the river and their reflections are very beautiful. (reflect)2. He often says that he doesn’t believe in any religion but meanwhile he respects others’religious freedom. (religion)3. I am writing to express my gratitude (grateful) for what you have done for me.4. We all consider the scenery pleasing/ pleasant (please) and we are all joyful (joy) to talk with our previous teachers.We talked and talked, laughing merrily (merry).5. Their responses to the questions reflected their true belief (believe) that “I can see you only if you can see me, too.”6. He won the election and was elected president of the country.(elect)7. The storm tends to hit our city, and we will observe the tendency of it closely. (tend)8. It was a scary story and children were scared after they heard it. (scare)9. Their main complaint (complain) is that the prices of a wide range of daily goods have risen sharply (sharp) in the past days.10. Humor can make one energetic (energy) in his work, study, and life.11. The workers are constructing the bridge damaged by the flood now,and the bridge under construction connects the road with the town.(construct)12. People from diverse cultures hold different understandings of the play and this diversity of opinions makes it hard to reach an agreement at the meeting. (diverse)13. She is a determined girl, so we know that once she has determined to do something, she will make her dream come true with great determination. (determine)14. A person’s life is limited but knowledge is limitless.(limit)15. There was a heated argument about whether he was suitable for the position,and most of the people argued for him.(argue)16. Judging from his disappointed look, his boss was disappointed with his disappointing performance. So to his disappointment, he didn’t get promoted. (disappoint)17. The rich man went abroad with the intention of trying his fortune, while the poor man intended to learn some skills of earning money.(intend)18. I’m writing to express my heartfelt apology (apologise) to you for my failing to hang out with you this weekend as scheduled.19. The doctor was patient with his patients.Whenever they made mistakes, he pointed them out with patience and never shouted at them impatiently.(patient)II.单句语法填空(40%)1.I feel it no use complaining (complain); instead, I should take action immediately.2.In response to your last letter, I make sure that I will assist you with/ in your oral English. Firstly,I will assist you to correct (correct) your pronunciation.3.Then I got to the point where I was staying up really late at night to get my work done.4.Dr Yuan Longping became the first agricultural pioneer in the world to grow (grow) rice that hasa high output.5.The majority of residents in Chinatown are still ethnic Chinese, many of whom do not speak English fluently.organized in the future.7.Afterwards, he had to admit putting/having put (put) some poisonous mushrooms in the soup.8.It is said that he narrowly escaped being killed (kill) in the traffic accident the other day.9.Having settled into a beautiful village, he settled down to doing (do) his research.10.He desired that measures (should) be taken (take) to stop pollution.cking (lack) confidence and experience, Jane was quite at a loss as to how to deal with the terrible situation.12.She tried her best to make herself heard (hear) clearly while delivering the speech.13.It’s good manners to bring (bring) a gift, such as a bunch of flowers, when you visit a Chinese friend.14.No one is permitted to take (take) photos of the exhibits in the museum without permission.15.Hardly had the police received the emergency call when they rushed to the scene.16.I found myself touched (touch) by his action,tears clouding my eyes.17.If you have any questions, don’t hesitate to ask (ask) me.18.Today, we’ll discuss a number of cases where beginners of English fail to use the language properly.19.The opera has a large audience, ranging (range) from children to grandparents.III. 用适当的介词填空(20%)1. I’d like to offer my sincere congratulations to you on your winning first place in the English Speech Competition.2. I am grateful to you for decorating our classroom for the graduation ceremony.3. It’s typical of our maths teacher to be very patient with us. Never have I seen her get angry because we can’t understand what she says.4. Don’t be afraid of mistakes. You have to learn by reflecting on/upon them.5. I hope airlines can show more respect for passengers and improve service.6. I overslept this morning because my alarm clock didn’t go off. With little time left, I had to give up dressing up for the party.7. Appointed as headmaster of the school, he spared no effort to improve its teaching quality.8. Ehlers eventually succeeded in coaxing (哄) the animal to him. Nervousness and fear were replaced with/ by joy.9. One day I got word that he was admitted to/ into hospital for a serious disease.10. A perfect idea occurred to us that we could give a handmade gift to our teacher for Teachers’ Day.11. The Internet has brought about great changes in the way we learn.12. He often argues with his son about/over recycling water so as to cut down the water bill.13. She found a box lying on the table with a card attached to it, saying “Happy birthday”.14. Lacking physical exercise resulted in poor health.However, people are beginning to attach much more importance to their health than ever before.15. The policeman on duty caught a thief on the spot in my house, and in return, I bought a bunch of flowers for him.16. To be honest, I hesitated about/over the option between the two dresses.17. Prices of these toys range between $7 and $10, which is quite affordable for average families.。
新教材高中英语人教版必修第三册巩固练习：Unit 1 Section Ⅱ 【含解析】
SectionⅡDiscoveringUsefulStructures一、单词拼写1.He put the letter in the e.2.There are some poisonous gases in the a.3.From the house come bursts of m laughter.4.All the family members get together to have dinner on the Spring Festival’s E.5.All the traditional Chinese festivals are (阴历的) calendar festivals.二、单句语法填空1.Who is the boy (speak) to your sister?2.There are trees (surround) the village.3.The girl (sit) by my side is my daughter.4.The lecture (give) by the professor was really (inspire).ura was away in Paris for over a week.When she got home,there was a pile of mails(wait) for her.三、完成句子1.他们晚上睡在睡袋里。
They sleep in the at night.2.后院有一个游泳池。
There is in the backyard.3.到目前为止他们还没有找到令人信服的证据。
They haven’t found so far.4.沿着街道漫步,享受轻松的气氛,真是让人开心。
It was great fun walking along the streets,enjoying the .5.昨晚,几百万人通过电视观看了开幕式现场直播。
必修第三册课后巩固练习 Unit 3 Diverse Cultures
2020-2021学年高一英语人教版(2019)必修第三册课后巩固练习Unit 3 Diverse CulturesⅠ、课文语块默写1. 差异________________________ 11. 毒药_________________________2.幸运曲奇_____________________ 12.折叠_________________________3.奶酪________________________ 13. 顶好的______________________4.承认_________________________ 14. 作品集_______________________5.肯定_________________________ 15. 百分比_______________________6.出现________________________ 16. 材料_________________________7.使命________________________ 17. 气候_________________________8.谋生________________________ 18. 适合_________________________9.瓷器_________________________ 19. 项目_________________________10. 简图________________________ 20. 包含_________________________Ⅱ、课文重点单词填空1. He sat in a kitchen chair, reached down and pulled off his _______ (靴子).2. The letter________(包含) information about the company's legal affairs.3. Work has begun on the________(建筑) of the new airport.4. They wanted to move to a warmer________(气候).5. The computer was my largest single________(—件物品) of expenditure.6. If you want to go by bus, that________(适合) me fine.7. The flood victims need shelter and warm________(衣服).8. —What________(材料) is this dress made of?—Cotton.9. Use a soap that is________(温和的) on the skin.Ⅲ、课文句子语法填空1. Tony lent me the money. _________ (hope) that I’d do as much for him.2. It suddenly occurred to her ___________ Joe was afraid of being alone.3. The group had been carefully ____________ (select) for the study because of their lifestyles.4. Apart from _____________ (be) the kingdom of flowers, it is home to many ethnic minority groups.5. I’ve had a few interviews, but no job ________ (offer) yet.6. We deal with all ____________ (variety) of information.7. Whereas in the _____________ (finance) world, you only get what you pay for.8. The textbook ___________ (contain) 12 units, including 2 revisions.9. He speaks English as _____________ (fluent) as a foreigner.10. She never participates ____________ any of our discussions, does she?Ⅳ、课文句子默写1. Don’t sit there __________________________. Come and help me with this table.(现在分词作伴随状语)不要坐在那儿无所事事。
新教材高中英语人教版必修第三册巩固练习：Unit 4 Section Ⅰ【含解析】
SectionⅠListeningandSpeaking&ReadingandThinking一、单句语法填空1.(mental),I began making a list of things I had to do.2.He was a man of (intelligent) and made much money.3.I think it’s a (universe) truth.4.As an adult,you should be (independently).5.(determine) to focus on studying,Jack moved to another city.二、标出下面诗歌中的重读音节(○)和非重读音节(○)One day,Isaac Newton satAnd saw an apple fall.三、根据首字母提示补全单词,完成下面小语段1.M is exploring space in the2.h of finding out more about the3.u.Some scientists were4.d to help humans and they made5.v to carry brave people into space for the secrets.However,they must be careful.If there’s a mistake during the6.l,it can kill everybody on7.b.四、阅读理解Here’s a list of some interesting facts about stars.The sun is the closest star to the earth.The sun is about 150 million kilometers away.Oursun,like most other stars,gives off power and light by nuclear fusion(核聚变),which happens exactly where it’s the hottest.The sun is about 4.5 billion years old and it will still last six billion years or so. When it runs out of its fuel (燃料),it would develop into a red star when increasing in size.Since stars are billions of light years away,it may be hard to recognise that stars are in continuous battles with themselves.All the stars have their own gravitational pull(引力) that pulls them.The surprising part is that the nuclear fusion occurring inside the star truly produces an outward(向外的) push to resist(抵抗) the gravitational force,which keeps its present shape.Stars have different colours.The hottest stars are surprisingly the smallest ones and are blue in colour.Their temperatures go to about 12,000 Kelvin.Although the yellow-coloured stars are the middle-sized ones just like the sun,their temperatures fall to about 6,000 Kelvin.Andlastly,the coolest and greatest ones are coloured red and the temperatures of them are about 3,000 Kelvin.When looking at the night sky,we may think that stars are up there alone.But don’t be surprised that these heavenly bodies in fact come in pairs.And stars can even come in groups of 3 or even 4!1.What will happen when the sun runs out of its fuel?A.It will disappear slowly.B.It will last six billion years.C.It will become a white star.D.It will become larger in size.2.What can we learn from Paragraph 3?A.All stars are in a state of balance.B.It’s hard for the stars to keep their shapes.C.The stars have the same gravitational pull.D.The stars always stay in peace with one another.3.What do we know about the colour of the star?A.It is blue when it is very cold.B.It looks red when it is far away.C.It seems yellow when it is over 3,000 Kelvin.D.It has something to do with its size and temperature.4.How do all the stars appear in space in reality?A.They appear only in pairs.B.They appear without rules.C.They stay alone here and there.D.They appear in small groups or in pairs.五、七选五阅读理解I’ve been keeping an English blog for many years.These practical tips have helped me over the course of my blogging.Read quality books,blogs,journals,etc.which are written in English.Blogging is not always about writing.1Reading also improves your English comprehension,grammar,spelling,vocabulary and writing.Practice helps,so continue writing.2Trying to make a perfect post free from grammar and spelling mistakes is good but you’re not making use of your time efficiently.3Think about the main points you want to raise.I prepare an outline of my post and a list of the points I want to talk about.Doing this has helped me stay on track and centre on my main points.The outline and the list of points I want to write about serve as my guidelines when I’m writing.When writing,use simple words and sentences.Using simple sentences makes your job as a blogger easier.4Always remember this:The aim of your writing is to get your message across and the only way to become an effective writer is successfully getting your message across to your readers.Write your posts ahead of time.5To free yourself from the pressure of making a post on daily basis,which might influence your writing,consider making your posts ahead of time.A.Also,it makes your posts more understandable to your readers.B.Welcome comments from your blog readers.C.There are advantages of daily blogging,but if it becomes tiring,forget about it.D.Don’t be afraid of making mistakes.E.Mistakes can be reduced with the help of your readers.F.You need to read to be able to write fluently.G.Prepare an outline of your post.六、短文改错Being a volunteer can bring much benefits to us.We can learn new skills,gain valuable experiences,meet new people and so on.In the late August last year,I took part the voluntary work for a international sports meeting.Every day I worked in the supply office in the Athlete Villages for about seven hours.My job is to deliver daily supplies to the officials and athletes.When the sports meeting closed,I finished my job successful.Though the job was hard,but it was very meaningful.Imade some friends with the people live there and some athletes from all around the world.This voluntary work also enriched your working experience,from that I learned some skills as well.Section Ⅰ ListeningandSpeaking&ReadingandThinking一、1.Mentally 2.intelligence 3.universal4.independent5.Determined二、One ○ d ○ay,I ○saa ○c N ○ewto ○n sa ○tA ○nd sa ○w a ○n a ○ppl ○e fa ○ll.三、1.Mankind 2.hope 3.universe 4.determined 5.vehicles unch 7.board四、1.D 根据第二段的“Whenitrunsoutofitsfuel,itwoulddevelopintoaredstarwhenincreasinginsize .”可知,当太阳用完它的能量,它会变成红色的星球,而且体积会增大。
新教材高中英语人教版必修第三册巩固练习：Unit 5 Section Ⅲ【含解析】
SectionⅢViewingandTalking,ReadingforWriting,AssessingYourProgress&VideoTime一、单句语法填空1.(eventual) they finished the project on time.2.He was so angry that he tore the whole letters without (hesitate).3.That’s (normally),believe it or not.4.We don’t permit (park) here.5.You should pay attention to the two (element).6.Please ask your teachers for help if (necessary).7.So we must remind ourselves (give) new people we meet a fair chance.8.Then he folds the bill and slowly unfolds it again,as if (look) at something he can’t believe is there.二、句型转换1.I accepted his help at once.→I didn’t his help.2.The girl would rather not have told me the truth.→The girl would rather that me the truth.3.We don’t permit everyone to treat him in such a rude manner.→Everyone isn’t him in such a rude manner.4.He acts as if he were a fool.→He acts as if .5.The team is made up of five doctors and twelve nurses.→Five doctors and twelve nurses the team.三、阅读理解Next time you raise an eyebrow at the views of your partner,friend,sibling(兄弟姐妹) or colleague,remember they could be helping to make you smarter.New research shows that intelligence is not fixed but can be improved throughout adulthood by family members,bright mates and intellectually challenging careers.The study challenges the commonly held belief that intelligence is fixed by the age of about 18.Scientific consensus(共识) suggests that intelligence is controlled by genes,with environmental factors such as schooling and nutrition playing a partial role up to this age.After this point,IQ scores become steady(稳定的).But James Flynn,professor of political studies and psychology at the University of Otago in New Zealand,argues that people can “upgrade” their own intelligence throughout their lives.He believes intellectual stimulation(刺激)from others is important as “the brain seems to be rather like a muscle—the more you use it,the stronger it gets”.However,the opposite is also true—so people sharing a home or workplace with those who are intellectually challenged risk seeing their IQ levels nosedive as a result.Professor Flynn analysed the US intelligence tests from the last 65 years and created new IQ “age tables”.He found a bright ten-year-old with brothers and sisters of average intelligence will suffer a five-to-ten-point IQ disadvantage,compared to a similar child with equally bright siblings.However,children with a low IQ could gain six to eight points by having brighter siblings and special educational treatment to help pull them up.Professor Flynn also concluded that although genetics and early life experiences determine about 80% of intelligence,the remaining 20% is linked to lifestyle.This means that people can raise their IQ,or allow it to fall,by ten points or more.He believed the best way to improve IQ levels is to mix with bright friends,find an intellectually challenging job and marry someone cleverer.1.According to the text,it is commonly believed that .A.people’s IQ level falls as they ageB.it is wise to share family members’ viewsC.people cannot improve their intelligence during adulthoodD.doing something challenging is good for one’s intelligence2.The underlined word “nosedive” in Paragraph 2 probably means “”.A.varyB.developC.changeD.fall3.Which of the following can help improve one’s intelligence according to Professor Flynn?A.Making many friends.B.Staying with smart people.C.Doing exercise every day.D.Learning from brothers or sisters.4.The purpose of the text is to .rmB.advertiseC.entertainD.persuade四、七选五阅读理解If you feel depressed(消沉的) it’s best to do something about it—depression doesn’t just go away on its own.In addition to getting help from a doctor,here are four things you can do to feel better.Exercise.Take a 15-to-30-minute walk every day or dance if you prefer.1But make yourself do it anyway.Once you get in the exercise habit it won’t take long to notice a difference in your mood.Provide yourself with good nutrition.Depression can affect appetite(食欲).Some people may not feel like eating at all while others might overeat.2So eat plenty of fruits and vegetables and get regular meals.Find out troubles.3When you know what’s got you feeling blue and why,talk about it with a caring friend,for talking is a way to release the feelings and to receive some understanding.If there’s no one to tell,pouring your heart out to a journal works just as well.4Depression affects a person’s thoughts,making everything seem negative and hopeless.If depression has you noticing only the negative,make an effort to notice the good things inlife.Considering your strengths or gifts may help.Most of all,don’t forget to be patient with yourself.5A.Depression takes time to heal.B.Take action to solve problems.C.Look on the bright side.D.Proper nutrition can affect a person’s mood and energy.E.Try to make out any situations that have led to your depression.F.People who are depressed may not feel much like being active.G.With depression a person’s creativity and sense of fun may seem blocked.五、语篇填空A 90-year-old has been awarded “Woman Of The Year” for 1.(be) Britain’s oldest full-time employee—still working 40 hours a week.Now Irene Astbury works from 9 a.m. to 5 p.m. daily at the pet shop in Macclesfield,2.she opened with her late husbandLes.Her years of hard work have 3.(final) been acknowledged after a customer nominated(提名) her to be Cheshire’s Woman Of The Year.Picking up her “Lifetime Achievement”award,proud Irene 4.(declare) she had no plans 5.(retire) from her 36-year-old business.Irenesaid,“I don’t see any reason to give up work.I love coming here and seeing my family and all the friends I 6.(make) over the years.I work not because I have to,7.because I want to.”Granddaughter Gayle Parks,31—who works alongside her in the family business—said it remained unknown as to who nominated Irene for the award.Shesaid,“We don’t have any idea who put Grandma forward.When we got a call 8.(say) she was short-listed,we thought it was 9.joke.But then we got an official letter and we were blown away.We are so proud of her.It’s10.(wonder).”六、选词创境运用下列写作词汇,自己创设一个语境,形成一个小语段。
新教材高中英语人教版必修第三册巩固练习：Unit 3 Section Ⅱ【含解析】
SectionⅡDiscoveringUsefulStructures一、选词填空1.finance/financialI only like news and magazines.Tokyo and New York are major centres.2.poet/poem/poetryI spent all my spare time reading .The girl repeated the after I had read it twice.He was not only a successful writer but also the greatest of his time.3.poison/poisonousShe was bitten on the ankle by a snake.Spiritual rubbish can children’s pure minds.4.fold/unfoldHe the handkerchief and put it in my pocket.As the story ,we learn more about Max’s childhood.二、用省略形式完成句子1.—Would you like to see the film with me?—Sure,(我想去).2.—What do you think made your brother so excited?—(赢得一项大奖).3.(如果必要的话),we will finish it ahead of time.三、把下列句子改写为省略形式1.Someone has used my mobile phone,but I don’t know who has used it.________________________________________________________________________________ _____2.John worked hard but his brother did not work hard.________________________________________________________________________________ _____3.—Has he ever been abroad?—No,he has never been abroad.________________________________________________________________________________ _____4.Though he is busy,he always spends weekend with his family.________________________________________________________________________________ _____5.You mustn’t be late and you mustn’t be absent.________________________________________________________________________________ _____6.Give me your name and address,please.________________________________________________________________________________ _____7.It is well done.________________________________________________________________________________ _____8.Mother can take a rest,Mother should take a rest but Mother won’t take a rest after long hours of work.________________________________________________________________________________ _____四、阅读理解The Trans-Siberian Railway is a single train line that crosses nearly the complete length of Russia,from Moscow to Vladivostok.It covers a total of 5,772 miles,running from Europe to Asia.Unlike the longest flight in the world,which just began transporting passengers in 2018,the Trans-Siberian Railway started its business in 1916.Anyone who has taken this long journey,or even just part of it,will tell you that it travels at a rather slow speed,passing through some amazing,remote areas of Russia.You don’t have to make the full journey without stopping.Instead,you’re recommended to get off where there are attractive views,since it stops in some pretty fantastic places.But you certainly can take the full journeynon-stop.If you do,the trip will take about 144 hours—six full days!You can book tickets with travel agencies.You can also make the booking online and tickets will be sent to your hotel or personal address.Children under 4 years old accompanied by adults can travel free,but cannot take up a seat.A child ticket needs to be bought if you want to get a seat for the child.There are longer railway services in the transportation world,but only one of them is a passenger line as some longer routes transport goods,nottravellers.This railway may not be the fastest or the most modern,but it’s clearly still an important player in the transportation world!1.Why is the longest flight mentioned in the first paragraph?A.To compare the two different ways of transport.B.To state the Trans-Siberian Railway is out of date.C.To explain how long the Trans-Siberian Railway covers.D.To show the great history of the Trans-Siberian Railway.2.Which of the following statements about the Trans-Siberian Railway is TRUE?A.A non-stop journey is suggested.B.It takes six full days to finish a non-stop trip.C.Children are always free of charge on this trip.D.It is the longest railway in the transportation world.3.Where does this passage probably come from?A.A history textbook.B.A science fiction.C.A business journal.D.A travel magazine.五、完形填空Born in America,I spoke English,notChinese,the language of my ancestors.When I was three,my parents flashed cards with Chinese1at my face,but I pushed them 2.My mum believed I would learn 3I was ready.But the 4never came.On a Chinese New Year’s Eve,my uncle spoke to me in Chinese,but all I could do was 5at him,confused,scratching my head.“Still can’t speak Chinese?” He 6me,“You can’t even buy a fish in Chinatown.”“Hey,this is America,notChina.I’ll get some 7with or without Chinese.” I replied and turned to my mum for 8.“Remember to ask for fresh fish,XinXianYu,” she said,handing over a $20 bill.I9the words,running downstairs into the streets of Chinatown.I found the fish 10surrounded in a sea of customers.“I’d like to buy some fresh fish,” I shouted to the fisherman.But he 11my English words and turned to serve the next customer.The laugh of the people behind increased 12their impatience.With every13,the breath of the dragons on my back grew stronger—my blood boiling—14me to cry out.“XianShengYu,please.”“Very XianSheng,” I repeated.The crowd erupted into laughter.My face turned 15and I ran back home 16,except for the $20 bill I held tightly in my pocket.Should I laugh or cry?They’reChinese.I’mChinese.I should feel right at 17.Instead,I was the joke,a disgrace(丢脸) to the language.Sometimes,I laugh at my fish 18,but,in the end,the joke is on 19.Every laugh is a culture 20;every laugh is my heritage(传统) fading away.1.A.custom B.games C.characters nguage2.A.ahead B.around C.along D.aside3.A.when B.before C.unless D.until4.A.success B.study C.time D.attempt5.A.aim B.joke C.nod D.stare6.A.cared about ughed at C.argued with D.asked after7.A.right now B.from now C.at times D.in time8.A.decision B.permission rmation D.preparation9.A.repeated B.reviewed C.spelled D.kept10.A.farm B.stand C.pond D.market11.A.guessed B.forget C.doubted D.ignored12.A.by B.as C.with D.from13.A.second B.effort C.desire D.movement14.A.forcing B.allowing C.persuading D.leading15.A.bright B.blank C.pale D.red16.A.open-mouthed B.tongue-tied C.empty-handed D.broken-hearted17.A.service B.home C.risk D.root18.A.trade B.deed C.challenge D.incident19.A.it C.me D.them20.A.thrown B.lost C.divided D.reflected六、语篇填空When meeting people at the airport,most people smile and shake hands with people they meet.We know that a smile is usually a sign that people feel friendly and happy,1.what if we don’t know who the new person is?What if we are not 2.(introduce) by a friend?Sometimes people are 3.(danger) and humans have to find ways to protect 4.\(them).We have to make sure we can trust people we do not know,and we have to show that we are not dangerous.Showing our hands means that we are not armed.In many culturestoday,the Western custom of 5.(shake) hands is used.We use our right hand,which is usually 6.(strong) than the left one.If we are using our hand this way,it cannot be holding a knife or a gun.It shows that we can trust each other.Not all cultures use the handshake,and people in many Asian cultures do not always touch another person.Japanese people might cover one hand with 7.other handand,depending on 8.they are greeting,bow9.(slight) or quite low.In almost all cultures,to smile and show an open right hand 10.(mean),“Welcome,you are safe with me.”SectionⅡDiscoveringUsefulStructures一、1.finance;financial2.poetry/poems;poem;poet3.poisonous;poison4.folded;unfolds二、1.I’d love to2.Winning a great prize 3.If necessary三、1.Someone has used my mobile phone,but I don’t know who.2.John worked hard but his brother did not.3.—Has he ever been abroad?—No,he has never.4.Thoughbusy,he always spends weekend with his family.5.You mustn’t be late or absent.6.Your name and address,please.7.Well done.8.Mothercan,should but won’t take a rest after long hours of work.四、1.D根据第一段中的“Unlikethelongestflightintheworld,whichjustbegantransportingpassengersin2018,theTrans-SiberianR ailwaystarteditsbusinessin1916.”可知,世界上最长的航班2018年才开始运送乘客,但西伯利亚大铁路在1916年开始运营。
高中英语 高考总复习 必修三 巩固练习
高考总复习：高一重点词汇五必修三一、完成句子1. Obviously no one likes to ____________(被戏弄), especially in public.2. This building was built __________________(为了纪念) the famous scientist.3.In my hometown, great changes ____________(发生) in the last 30 years.4. We are __________________(渴望) seeing you again.5. What he said and did was ___________________(令人难以置信).6. She _________________(过去常开玩笑) others.7. This ________________(可能是你的习惯).8. __________________(你能屏住呼吸) for 6 minutes?9. We ______________(本应到达) earlier.10. When he got to the cinema, the film hadn’t started yet, so he __________________(本没必要匆忙).11.____________________________, I was made smaller.随着时间的推移，我被弄得越来越小。
12. Over time my memory has developed _________ much _________, like an elephant, I never forget anything I have ________________ (tell).随着时间的推移，我的记忆能力发展得如此之快，就像一头大象一样，从来不会忘记告诉我的任何事情。
人教版高中英语必修三巩固练习
高中英语学习材料madeofjingetieji巩固练习单词拼写（15分）1. “Sorry, sir. Please show me your driving p____________,” the policeman said politely.2. You need _________________( 耐心) if you want to get served in this shop.3. It was not our _______________ ( 错误) that we were late.4. It’s best to cook vegetables in a small a___________________ of water.5. Do you mind his s_______________________ at you ?6. Young people like to ___________________ (寻找) success in life.7. He is so r_____________________ that nobody wants to play with him.8. Hot is the c____________________ of cold.9. At first we thought he was poor because he was in r__________________ .10.Thank you very much ________________________ ( 实在；真的) .11. Ten years hard life made her poor ______________________ ( 外表) .12. It’s bad _____________________ (礼貌) to talk with your mouth full.13. Mark Twain became rich because of his _________________ ( 小说) .14. The ___________________ ( 人行道) was covered with fallen leaves.15. When Henry left the restaurant, the owner, hostess and waiter all ______ (鞠躬) together. 句型转换 ( 10分)1. They pretended that they were barbers.They pretended ____________ ______________ barber.2. Honestly speaking, I don’t want to stay here any longer._____ _______ ________, I don’t want to stay here any longer .3. In fact, I landed in Britain by accident．In fact, I _________ ____________ land in Britain.4. Because of the bad weather, a few students were absent from school.The bad weather _________ __________ a few students’ absence of school.5. It would be wrong that I don’t trust a gentleman.It would be wrong ________ me ________ _________ trust a gentleman.完成句子 (10分)1. Mr. Robert wanted to spend ________________ ( 余生) in the countryside.2. A kilometer_____________________________ ( 等于) 100 meters.3. Waiter, please ________________________________(为这位先生点菜).4. Henry tried to use the bank-note but not ___________________ (惹麻烦).5.__________________________________( 在过去的二十年里), she has led a hard life. 选择正确的词或词组填空(注意有多余选项)---------------------------------------------------------------------------care about, carry out, do with, deal with, promise, bet on,stare at, look, in rages, account of, to be honest, not…until---------------------------------------------------------------------------1. He took no ___________ what I said and failed.2. Tell me what you ____________ yourselves last Sunday.3. He spends all his money ________________ horses.4. Don’t look at me in such way; I don’t like being ____________.5. The program made in yesterday’s conference will soon _____________.6. You shouldn’t consider Tom poor though he is ____________.7. I don’t think she ______________ what happens to her children.8. ______________, I don’t think we have a chance of winning.9. _____________ we know more will we be able to improve the situation.10. I can’t ___________, but I will do my best.单项填空(共15小题; 每小题1分, 满分15分)1. The reason ___________his success was _______he worked very hard.A. for; whyB. for; thatC. why; thatD. why; how2. —Would you mind if I turned on the radio and listened to some music?— ______. In fact, I also like to listen to music in my car.A. No, you can’tB. Yes, I doC. No, go aheadD. OK, no problem3. He has behaved in the most extraordinary way recently. I wonder what can _____his actions.A. answer forB. leave forC. ask forD. account for4. At first he was not satisfied with the new job but decided to give himself a few months to see ________it got any better.A. whenB. howC. whyD. whether5. Jack, please stop talking. It’s bad______ to talk with others when having dinner.A. habitB. wayC. mannerD. manners6. Women have won equal rights as men._________ racial discrimination, much progress has been made, but there is still much to do.A. As long asB. As ifC. But forD. As for7. It was not until midnight_ ________they reached the camp site.A. thatB. whenC. whileD. as8. After the hurricane was over, the citizens looked at _____ was left in their houses, feelingsad.A. whatB. thatC. whichD. all9. It took _________people as well as ___________time to build the bridge.A. a large number of; a good manyB. a large amount of; a great deal ofC. a great many; a large amount ofD. a great many of; large amounts of10. —You seem to show interest in cooking.—What?_________, I’m getting tired of it.A. On the contraryB. To the contraryC. On the other handD. To the other hand11. My advice to you as a friend was that you ________her well.A. treatedB. treatC. should be treatedD. would treat12. Don’t be angry with the boy. He made the mistake ______.A. on purposeB. by accidentC. in surpriseD. at once13. He can’t get used to the city life here because he was______ in the coun tryside.A. grown upB. brought upC. fedD. trained14. _________that everyone stared _________ him.A. Too rude was he; inB. So rude was he; atC. Such rude he was; toD. So rude he was; at15. —Would you permit me __________ here?—Sorry, w e don’t permit ＿＿＿＿＿＿here in the lab.A. smoking; smokingB. to smoke; to smokeC. smoking; to smokeD. to smoke; smoking答案解析单词拼写1.permit2. patience3.fault4.amount5.staring6.seek7.rude 8.contrary 9.rags 10. indeed 11. appearance 12. manners 13. novels 14. pavement 15. bowed句型转换1. to be2. To be honest3.happened to4. accounted for5. of, not to完成句子1. the last years of his life2. is equal to3. take his order4. get in trouble5. In the last/past twenty years选词填空1. account of2. did with3. betting on4. stared at5. be carried out6. in rags7. cares about8. To be honest9. Not until 10. promise单项填空1.【解析】选B。
2020-2021学年高一英语人教版(2019)必修第三册课后巩固练习 综合复习与测试
2020-2021学年高一英语人教版(2019)必修第三册课后巩固练习综合复习与测试一、阅读理解AThere are numerous amusement parks all over the world. A famous magazine, Amusement Today, does a survey among park lovers every year both in the US and overseas, based on which, "Top 5 List of the Best Amusement Parks in the World” has come out as follows: Disneyland, CaliforniaDisneyland is a theme park in Anaheim, California, the US. More than 515 million guests have travelled to this American landmark from around the world since the park first opened to guests on July 17, 1955. The park consists of many world-famous sections, such as Main Street, Adventure Land, New Orleans Square, and so on.Magic Kingdom, Disney World, FloridaMagic Kingdom is a theme park within the Walt Disney World Resort in Lake Buena Vista, Florida, near Orlando opened on October 1 , 1971. It is the most famous theme park in Florida. The park's design and attractions. Don’t make much difference from Disneyland Park in Anaheim.EPCOT, Disney World, FloridaEPCOT is the second theme park built at the Walt Disney World Resort near Orlando, Florida. The park opener! on October 1 , 1982, and was named EPCOT Centre from 1982 to 1993. It was the largest Disney : theme park in the world until 1998, when Disney's Animal Kingdom opened.Disney-MGM Studios, FloridaMGM's streets are the home for some great movie-themed attractions with a history of less than 30 years. With the addition of the Twilight Zone Tower of Terror and the Rock 'N' Roller Coaster, the park is now home to Disney World's most thrilling rides.Universal Studios, FloridaGo behind the scenes, beyond the screen and jump right into the action of your favorite movies at Universal Studios, the number one movie and TV theme park in the world.1.Which park has the longest history?A. Magic Kingdom, Disney World, Florida.B. Disneyland, California.C. EPCOT, Disney World, Florida.D. Disney-MGM Studios, Florida.2.Which of the following theme parks have similar attractions?A. EPCOT & Disney-MGM Studios.B. Disneyland, California & Magic Kingdom.C. Disneyland, California & Universal Studios.D. Magic Kingdom & Universal Studios.3.What's the purpose of the passage?A. To attract tourists to these theme parks.B. To compare attractions in different theme parks.C. To increase the sales of Amusement Today.D. To introduce world's best amusement parks.BA woman in Japan who had no home sneaked into a man's house and lived without being noticed in his closet for a year. She was arrested (逮捕) after the man found that his food was disappearing and reported it to the police.Police found the 58-year-old woman on Thursday hiding in the top part of the man's closet and arrested her for getting in without the owner’s permission(允许), police spokesman Hiroki Itakura from southern Kasuya town said on Friday.The man had security cameras(监视器) which sent images to his cellphone after becoming confused by food disappearing from his kitchen over the past several months.One of the cameras on Thursday caught someone moving into his home after he had left.so he called the police who at first thought it was a thief. However, when they arrived, they found the door locked and all windows closed.“We searched the house and checked everywhere someone could possibly hide.” Itakura said. “When we opened the closet, we found the woman curled up(蜷曲) on her side, feeling nervous and frightened.”The woman told the police that she had no place to live and first sneaked into the man's house about a year ago when he left home without locking the door.“She had moved a mattress into the small closed space and even took showers,” Itakura said. He called the woman “tidy and clean”.1.What is the best title of this passage?A. A Japanese Woman Caught Living in a Man's ClosetB. A Woman Without HomeC. Police Arrested a Woman on ThursdayD. Please Lock the Door before Leaving Your House2.When someone sneaks into a house, he most probably ____________.A.is the owner of the houseB. doesn't want to be noticed by othersC. lives a very poor lifeD. wants to find some food to eat3.According to the passage, when the woman was found by the police, she _______.A. was stealing food in the kitchenB. felt nervous and frightenedC. was untidy and dirtyD. tried to jump off the window4.Which of the statements is true?A. The woman doesn't like living in her own house.B. The man always forgets to lock his door when he leaves.C. The woman first sneaked into the man’s house about a year ago.D. The woman was over sixty years old when she was arrested.CBill Bowerman was a track coach. He wanted to help athletes run faster. So he had learned how to make running shoes. He had also started a shoe company with a friend. It was 1971. Running shoes at the time were heavy. They had spikes(鞋钉) on the sole(鞋底). The spikes tore up the track and slowed down runners.To make a lighter shoe, Bill tried the skins of fish. To make a better sole, he wanted to replace the spikes. Bill dug through his wife Barbara's jewelry box. He hoped to find a piece of jewelry with an interesting pattern. He would then copy the pattern onto the new soles. Nothing worked. Bill was stumped.Then, one Sunday morning, Barbara made Bill waffles(华夫饼)for breakfast. Bill watched her cook.He studied the criss-cross pattern on their old waffle iron.Inspiration struck. The pattern on a waffle iron was just what Bill was looking for. The squares were flatter and wider than sharp spikes. The pattern would help the shoes hold any surface without tearing into it.When Barbara left the house, Bill ran to his lab. He took the liquid chemicals that, when mixed,would harden into the sole of a shoe. He poured the mixture into the waffle iron—and the Waffle Trainer was born.Bill's company put the Waffle Trainer on the market in 1974. It was a huge hit. Maybe you've heard of that company—it's called Nike. And today it's worth around $100 billion.It was the waffle iron that had changed the course of Bill's life—and helped turn Nike into a well-known name. Today, the waffle iron is kept at Nike headquarters. It serves as a reminder that if we keep trying, we can find a solution to even the toughest problems. And those solutions can come from unlikely places. Even the breakfast table.1.What shortcomings did the old-style running shoes have?A. They were hard to wear.B. They were too large.C. They were impractical.D. They were easy to break.2.Where did Bill get the inspiration to invent the famous Waffle Trainer?A. From the skins of the fish.B. From his wife's jewelry.C. From the color of the iron.D. From his wife’s cooking tools.3.What can we learn from Bill's success?A. A cheerful wife is the joy of life.B. Two heads are better than one.C. Where there's a will, there's a way.D. A bad workman quarrels with his tools.4.What can be a suitable title for the text?A. Waffles and NikeB. Inspiration and InventionC. A Great InventorD. A Well-Known CompanyDPeople in developed countries are increasingly suffering from illnesses resulting from overeating. While starvation and hunger are still big problems in many poor countries in the world, more than 25 percent of the population in America and other western countries are obese. This doesn’t just mean you are a little bit fat. It means you are more than 20 kilos overweight.Dr. John Colon from Ohio State University says the problem is only going to get worse. “As more women have gone out to work, you find that parents in general have less time to spend on preparing food. That’s not just cooking, but also planning what to eat, doing the shopping and buying the fresh food. Families, therefore, increasingly rely on ready-made and frozen meals, which tend to be high in fat and contain a lot of additives (materials added to food to improve itstaste) and sugar. The other thing is that parents seem to feel guilty about not spending so much time with their kids, so they tend to give more quickly to children's demands for things like sweets and chocolate."Ben Brown who is a British Member of Parliament blames the big food companies. He wants to ban any food advertising that is aimed at children. The problem is that these companies spend millions of pounds selling food to children. It’s all crisps(薯片) in the shape of dinosaurs and chocolate in the shape of Mickey Mouse. I mean what’s going to be more fun to an eight-year-old—an ice cream with a free toy or an apple?”One food company thinks it has an answer to this: it has invented cheese-flavored cabbage and | chocolate-flavored carrots. It developed the “Whacky Veg” with money donated by a cancer research charity, which found that a diet containing lots of fruit and vegetables helps reduce cancer. However, today’s sweet-toothed kids need to be bribed(诱哄) into a healthy diet, and will only eat their greens if they taste different.1.What does the underlined word "obese" in Paragraph 1 probably mean?A. Fit.B. Slim.C. Overweight.D. Unhealthy.2.What can we infer from the underlined sentence in Paragraph 3?A. Food companies sell too much food to children.B. An eight-year-old boy prefers an ice cream to a free toy.C. Food advertising is responsible for the overeating problem of children.D. Children like crisps in the shape of dinosaurs and chocolate in the shape of Mickey Mouse.3.In order to solve the overeating problem,________.A. parents should bribe their childrenB. green food should be invented for the childrenC. parents should force their children to eat more vegetables and fruitD. food companies should invent healthy food with special taste4.What does the passage intend to tell us?A. To warn us of the danger of overeating.B. To tell us that most people in developed countries are overweight.C. To show us that food companies are responsible for the overeating problem.D. To report causes and solutions of the overeating problem in developed countries.二、阅读下面短文,从短文后的选项中选出可以填入空白处的最佳选项。
【假期巩固必备】高中数学必修三寒假作业--1.2.3循环语句练习二
1、2、3 循环语句练习一一、选择题1、学了算法你的收获有两点，一方面了解我国古代数学家的杰出成就，另一方面，数学的机械化，能做许多我们用笔和纸不敢做的有很大计算量的问题，这主要归功于算法语句的( )A、输出语句B、赋值语句C、条件语句D、循环语句2、读程序甲：INPUT i=1 乙：INPUT I=1000S=0 S=0WHILE i≤1000 DOS=S+i S=S+ii=i+l I=i一1WEND Loop UNTIL i<1PRINT S PRINT SEND END对甲乙两程序和输出结果判断正确的是 ( )A、程序不同结果不同B、程序不同，结果相同C、程序相同，结果不同D、程序相同，结果相同3、在上题条件下，假定能将甲、乙两程序“定格”在i=500，即能输出i=500 时一个值，则输出结果A、甲大乙小B、甲乙相同C、甲小乙大D、不能判断二、填空题4、INPUT xIF 9<x AND x<100 THENa=x＼10b=x MOD 10x=10*b+aPRINT xEND IFEND(注：“＼”是x除以10的商，“MoD”是x 除以10的余数)上述程序输出x的含义是三、解答题5、一木球从１００米高下落，每次落地后反跳回原高度的一半，再落下。
设计在第１０次落地时，求小球经过的总路程的程序，并输出总路程和第１０次下落的路程。
6、高一3班共有54名同学参加了数学竞赛，现在已有了这54名同学的竞赛分数。
请设计算法，要求将竞赛成绩优秀的同学的平均分计算并输出（规定90分以上为优秀），写出程序。
7、输入20个数，要求输出其中的正数、负数、零的个数，写出程序。
8、编写程序，输入一元二次方程的系数，输出它的实数根。
9、编写程序，使得任意输入的3个整数按从大到小的顺序输出。
10、编写程序：计算并输出1750—1850之间的素数之和S与其中最大的素数（提示：只能被1和自身整除的自然数成为素数）11、假定在银行中存款10000元，按11．25％的利率，一年后连本带息将变为11125元，若将此款继续存人银行，试问多长时间就会连本带利翻一番?请用直到型和当型两种语句写出程序12、如果我国工业产值每年以9%的增长率增长，问几年后我国产值翻一番？写出该算法的程序。
高一语文人教版必修三课后巩固演练：1.2 祝福 Word版含解析.docx
2祝福一、基础巩固1.下列词语中加点字的读音,完全不相同的一组是()A.胳臂．/臂．膊镯．子/爵．位烟霭．/和蔼．B.拓．片/拓．荒瘦削．/削．弱间．或/间．距C.悚．然/耸．立诧．异/叱咤．屡．次/履．行D.懈怠．/鞭笞．雇佣．/佣．金新正．/周正．解析:A项,分别读bei/bì,zhuó/jué,ǎi/ǎi;B项,分别读tà/tuò,xuē/xuē,jiàn/jiān;C项,分别读sǒng/sǒng,chà/zhà,lǚ/lǚ;D项,分别读dài/chī,yōng/yòng,zhēng/zhèng。
答案:D2.下列各句中,加点的成语使用恰当的一句是()A.这座古老而又年轻的城市意气风发．．．．地走在追梦的大路上,如果说处处碧波将成为它地理的新脉象,那么自主创新则是它正在全力培育的城市之魂。
B.网络具有便捷、迅速的特点,尤其受到年青一代喜爱,如何有效利用这个平台,因地制宜．．．．地为建设中国梦所用,是每个有责任心的人都在考虑的问题。
C.专家认为,日本政界右翼人士一直努力淡化“二战”战败的概念,其否认侵略历史的观念可谓盘根错节．．．．,必须予以法理上的分析和针锋相对的批驳。
D.如果对方应酬非常得体,礼貌而又周到,自己却连句感谢的话也不会说,站无站相,坐无坐相,甚至翘足而待．．．．,就很容易被人认为有些欠缺修养了。
解析:A项,“意气风发”,像风吹一样迅猛。
形容精神振奋,气概豪迈。
B项,“因地制宜”,根据各地的具体情况,制定适宜的办法。
C项,“盘根错节”,树木的根枝盘旋交错。
比喻事情纷难复杂。
D项,“翘足而待”,踮起脚跟等待。
形容短时间内便能见到事情的结果。
B、C、D三项均不符合语境。
答案:A3.下列句子中,没有语病的一项是()A.教育部日前表示,要牢固确立职业教育在国家人才培养体系中最重要的位置,并坚持职业教育和普通教育并重发展。
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第16练算法与程序框图
一、选择题
1．下列叙述中，不能称为算法的是（）
A．植树需要运苗、挖坑、栽苗、浇水这些步骤
B．按顺序进行下列运算：1+1=2，2+1=3，3+1=4，…，99+1=100
C．从济南到北京旅游，先坐火车，再坐飞机抵达
D．3x>x+1
2．下列叙述能称为算法的个数为（）
①植树需要运苗、挖坑、栽苗、浇水这些步骤；②按顺序进行下列运算：1+1=2，2+1=3，3+1=4，…，99+1=100；
③从枣庄乘火车到徐州，从徐州乘飞机到广州；④3x>x+1；
⑤求所有能被3整除的正数，即3，6，9，12，…．
A．2 B．3 C．4 D．5
3．程序框图符号“”可用于（）
A．赋值a=6 B．输出a=5 C．输入a=5 D．判断a=6
4．如图的框图是一古代数学家的一个算法的程序框图，它输出的结果S表示（）
A．a0+a1+a2+a3的值B．a3+a2x0+a1x02+a0x03的值
C．a0+a1x0+a2x02+a3x03的值D．以上都不对
5．某程序框图如图所示，若运行该程序后输出S=（）
A．5
3
B．
7
4
C．
9
5
D．
11
6
6．阅读如图所示程序框图，运行相应的程序，若输入x=1，则输出的结果为（）A．﹣1 B．2 C．0 D．无法判断
二、填空题
7．阅读程序框图，运行相应的程序，则输出的值为_________．
8．给出如图的程序框图，程序输出的结果是_________．
第17练基本算法语句
一、选择题
1．根据下面的算法语句，当输入x为60时，输出y的值为（）
A．25 B．30 C．31 D．60 2．阅读如图所示的程序，则运行结果为（）
A．1 B．2 C．5 D．7 3．下面一段程序执行后的结果是（）
A．6 B．4 C．8 D．10 4．执行如图程序，如果输入的a=5，b=3，那么输出的结果为（）
A．5，3 B．3，5 C．3，3 D．5，5 5．如图是一个求20个数的平均数的程序，在横线上应填充的语句为（）
A．i≥20 B．i≥21 C．i>21 D．i<20 6．如图的程序运行后输出的结果为（）
A．﹣17 B．22 C．25 D．28 7．如图所给的程序，其循环体执行的次数是（）
A．49 B．50 C．100 D．99
二、填空题
8．下面程序的运行结果是_________．
9．计算机执行如图所示的程序，则输出的S的值为_________．
三、解答题
10．阅读下列程序．回答问题：
（1）此程序的功能是求函数_________________的函数值．
（2）若输出y的值是25，则输入的x应该是多少？
第18练算法案例一、选择题
1．将五进制数42（5）化为十进制数为（ ） A ．10
B ．22
C ．110
D ．1010
2．下列四个数中，数值最小的是（ ） A ．25（10）
B ．54（6）
C ．10110（4）
D ．10111（2）
3．用秦九韶算法计算函数f （x ）=x 4﹣2x 2+x ﹣1，当x =1时的值，则v 3=（ ） A ．﹣2
B ．﹣1
C ．0
D ．1
4．自然界中具有两种稳定状态的组件普遍存在，如开关的开和关、电路的通和断等，非常适合表示计算机中的数，所以现在使用的计算机设计为二进制计算机．二进制以2为基数，只用0和1两个数表示数，逢2进1，二进制数同十进制数遵循一样的运算规则，它们可以相互转化，如
987610(521)12020202=⨯+⨯+⨯+⨯+0×25+0×24+1×23+0×22+0×21+1×20=（1000001001）2．我国
数学史上，对数制研究不乏其人，清代汪莱的《参两算经》是较早系统论述非十进制数的文献，总结出了八进制乘法口决：7×7=61，7×6=52，7×5=43，…，请类比二进制与十进制转化的运算，数（1010011100）
2对应八进制数为（
）
A ．（446）8
B ．（1134）8
C ．（1234）8
D ．（4321）8
5．计算机中常用十六进制是逢16进1的计数制，采用数字0～9和字母A ～F 共16个计数符号，这些符号与十进制的数的对应关系如表： 16进制 0 1 2 3 4 5 6 7 8 9 A B C D E F 10进制
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
现在，将十进制整数2019化成16进制数为（ ） A ．7E3
B ．7F3
C ．8E3
D ．8F3
6．利用秦九韶算法求f （x ）=x 5+x 3+x 2+x +1当x =3时的值为（ ） A ．121 B ．283
C ．321
D ．239
二、填空题
7．用“辗转相除法”求得119和153的最大公约数是_________．
8．用秦九韶算法求多项式f （x ）=4x 5+2x 4﹣3x 2+1，当x =3时，v 3=_________． 9．二进制数学1101101（2）转化为十进制数为_________．
10．三进制数2012（3）化为六进制数为abc （6），则a +b +c =_________． 三、解答题
11．分别用辗转相除法和更相减损术求282与470的最大公约数．
第19练随机抽样
一、选择题
1．福利彩票“双色球”中红色球由编号为01，02，…，33的33个球组成，某彩民利用下面的随机数表选取
6组数作为6个红色球的编号，选取方法是从随机数表（如下）第1行的第6列数字开始由左到右依次选取两个数字，则选出来的第2个红色球的编号为（）
49 54 43 54 82 17 37 93 23 78 87 35 20 96 43 84 17 34 91 64
57 24 55 06 88 77 04 74 47 67 21 76 33 50 25 83 92 12 06 76
A．32 B．48 C．37 D．23
2．高三某班有34位同学，座位号记为01，02，…，34，用下面的随机数表选取5组数作为参加青年志愿者活动的五位同学的座号．选取方法是从随机数表第一行的第6列和第7列数字开始，由左到右依次选取两个数字，则选出来的第4个志愿者的座号为（）
49544354821737932378873520
96438426349164572455068877
04744767217633502583921206 A．23 B．09 C．16 D．02
3．有200人参加了一次会议，为了了解这200人参加会议的体会，将这200人随机号为001，002，003，…，200，用系统抽样的方法（等距离）抽出20人，若编号为006，036，041，176，196的5个人中有1个没有抽到，则这个编号是（）
A．006 B．041 C．176 D．196
4．从编号为001，002，…，400的400个产品中用系统抽样的方法抽取一个容量为16样本，已知样本中最小的编号为007，则样本中最大的编号应该为（）
A．382 B．483 C．482 D．483
5．某公司在甲、乙、丙、丁四个地区分别有150，120，180，150个销售点．公司为了调查产品销售情况，需从这600个销售点中抽取一个容量为100的样本．按照分层抽样的方法抽取样本，则丙地区抽取的销售点比乙地区抽取的销售点多（）
A．5个B．8个C．10个D．12个
二、填空题
6．某校有高级教师90人，一级教师120人，二级教师75人，现按职称用分层抽样的方法抽取38人参加一项调查，则抽取的高级教师的人数为_________．
7．某校为了解学生的身体素质情况，采用按年级分层抽样的方法，从高一、高二、高三学生中抽取一个300人的样本进行调查，已知高一、高二、高三学生人数之比为k：5：4，抽取的样本中高一学生为120人，则实数k的值为_________．
8．某中学采用系统抽样方法，从该校高三年级全体800名学生中抽50名学生做牙齿健康检查．现将800名
学生从1到800进行编号．已知从33～48这16个数中取的数是42，则在第1小组1～16中随机抽到的数是_________．
9．某校高三年级共有25个班，学校心理咨询室为了解同学们的心理状况，将每个班编号，依次为1到25，现用系统抽样的方法抽取5个班进行调查，若抽到的编号之和为60，则抽到的最小编号为_________．
10．总体由编号为01，02，…，19，20的20个个体组成．利用下面的随机数表选取5个个体，选取方法从随机数表的第1行第4列数由左到右由上到下开始读取，则选出来的第4个个体的编号为_________．第1行78 16 65 71 02 30 60 14 01 02 40 60 90 28 01 98
第2行32 04 92 34 49 35 82 00 36 23 48 69 69 38 74 81
三、解答题
11．为了了解某校学生课外时间的分配情况，拟采用分层抽样的方法从该校的高一、高二、高三这三个年级中共抽取5个班进行调查，已知该校的高一、高二、高三这三个年级分别有18、6、6个班级．
（1）求分别从高一、高二、高三这三个年级中抽取的班级个数；
（2）若从抽取的5个班级中随机抽取2个班级进行调查结果的对比，求这2个班级中至少有1个班级来自高一年级的概率．。