成都中考十二选十--句型公式

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12选10解题思路

12选10解题思路

中考英语12选10 (短文选词填空)如何做十二选十短文填词?做“用方框中所给单词的适当形式填空”一题。

要抓住两点:一是“放远”,二是”“看近”。

放远:一篇短文填空题是一个有机的整体。

通读全文、明了大意、理清观点、分清层次是十分重要的一步。

依据上下文,语境,眼光放远,从头到尾,按日常认识事物的规律,填上所选的词,通顺。

技巧:1. 根据上下文的逻辑关系进行推测:注意上下文的逻辑联系和文章的逻辑关系是做好短文填空题的关键,它要求考生在了解文章大意的基础上,联系上下文,运用思维逻辑进行比较、判断,找出既符合短文的词义2.根据语篇标志进行推测:语篇一般是指比单一句子长的语言单位,如句群、段落、篇章等。

语篇和语篇之间往往有标明其内在联系的词语,这些词语称为“语篇标志”,例如:表示结构层次的firstly, secondly等,表示逻辑关系的therefore, so, but等,表示话题改变的by the way,for example, and so on, fore instance等。

充分利用这些语篇标志可以迅速理清文章的脉络,弄清上下文之间的关系。

3.根据文化背景知识进行推测:短文空题考查的知识面较广,从文化、科学常识,到历史地理知识;从风俗民情到民族习惯等等,无所不考。

考生在做这类题时,要特别注意中西文化方面所存在的差异。

具备了一定的文化背景知识,才能比较准确地判断出正确的词义。

4.根据常识进行判断:中学生已经掌握了较丰富的科学与生活常识,也具备了一定的判断能力。

在考查语言知识和技能的同时,考查这些简单的常识性的问题,也是对学生知识面的检测。

看近:形式上有残缺(若干个空),但它的内容、语言习惯,句与句之间的衔接点,句子与段落之间的联系,段落与段落之间的逻辑顺序仍或隐或现地存在于篇章之中。

依据此句前后,眼光就近。

运用基本语言知识(词法和语法):动副、动宾、介宾、系形、短语动词、短语介词、搭配、结构。

B卷十二选十题型的方法与技巧

B卷十二选十题型的方法与技巧
直击成都英语中考 B卷十二选十题型的方法与技巧
第一、观察并联想这12个单词 第二、观察每个空的左邻右舍
第三、通读文章(时态语态、语境意思、细节变化) 第四、查漏补缺、核实答案
第一、观察并联想这12个单词
单词:时态变化、词形变化、相关短语、特别考点
1、result--results--as a result 7、bore--bored--boring 2、choose--4变化--choice 8、offer--4变化--offer to do 4变化:chooses--chose--chosen--choosing 9、teacher--teachers--teach--4变化 3、action--act 4变化--actor--actress--active--activity 10、impossible--impossibly 4、go--4变化 possible--possibly
5、recent--recently:最近地 11、cultural--culture 6、gentle--gently--比较级最高级--gentleman 12、many--much--more--most
第二、观察每个空的左邻右舍
第二、观察每个空的左邻右舍
第二、观察每个空的左邻右舍
第二、观察每个空的左邻右舍 n/adv
第四、查漏补缺、核实答案
possibly recently to go
result
bored
choices
activities are taught
offer
cultures
直击成都英语中考 B卷十二选十题型的方法与技巧
第一、观察并联想这12个单词 第二、观察每个空的左邻右舍

2023成都中考数学考点总结

2023成都中考数学考点总结

2023成都中考数学考点总结成都中考数学考点总结1.三角形中位线定理三角形的中位线平行于第三边,并且等于它的一半2.梯形中位线定理梯形的中位线平行于两底,并且等于两底和的一半L=(a+b)÷2S=L×h3(1)比例的基本性质如果a:b=c:d,那么ad=bc如果ad=bc,那么a:b=c:d4.(2)合比性质如果a/b=c/d,那么(a±b)/b=(c±d)/d5.(3)等比性质如果a/b=c/d=…=m/n(b+d+…+n≠0),那么(a+c+…+m)/(b+d+…+n)=a/b6.平行线分线段成比例定理三条平行线截两条直线,所得的对应线段成比例7.推论平行于三角形一边的直线截其他两边(或两边的延长线),所得的对应线段成比例8.定理如果一条直线截三角形的两边(或两边的延长线)所得的对应线段成比例,那么这条直线平行于三角形的第三边9.平行于三角形的一边,并且和其他两边相交的直线,所截得的三角形的三边与原三角形三边对应成比例10.定理平行于三角形一边的直线和其他两边(或两边的延长线)相交,所构成的三角形与原三角形相似11.相似三角形判定定理1两角对应相等,两三角形相似(ASA)12.直角三角形被斜边上的高分成的两个直角三角形和原三角形相似13.判定定理2两边对应成比例且夹角相等,两三角形相似(SAS)14.判定定理3三边对应成比例,两三角形相似(SSS)15.定理如果一个直角三角形的斜边和一条直角边与另一个直角三角形的斜边和一条直角边对应成比例,那么这两个直角三角形相似中考数学考点总结1.推论如果弦与直径垂直相交,那么弦的一半是它分直径所成的两条线段的比例中项2.切割线定理从圆外一点引圆的切线和割线,切线长是这点到割线与圆交点的两条线段长的比例中项3.推论从圆外一点引圆的两条割线,这一点到每条割线与圆的交点的两条线段长的积相等4.如果两个圆相切,那么切点一定在连心线上5.①两圆外离d﹥R+r②两圆外切d=R+r③两圆相交R-r﹤d﹤R+r(R﹥r)④两圆内切d=R-r(R﹥r)⑤两圆内含d﹤R-r(R﹥r)6.定理相交两圆的连心线垂直平分两圆的公共弦7.定理把圆分成n(n≥3):⑴依次连结各分点所得的多边形是这个圆的内接正n边形⑵经过各分点作圆的切线,以相邻切线的交点为顶点的多边形是这个圆的外切正n边形8.定理任何正多边形都有一个外接圆和一个内切圆,这两个圆是同心圆9.正n边形的每个内角都等于(n-2)×180°/n10.定理正n边形的半径和边心距把正n边形分成2n个全等的直角三角形11.正n边形的面积Sn=pnrn/2p表示正n边形的周长12.正三角形面积√3a/4a表示边长13.如果在一个顶点周围有k个正n边形的角,由于这些角的和应为360°,因此k×(n-2)180°/n=360°化为(n-2)(k-2)=414.弧长计算公式:L=nπR/18015.扇形面积公式:S扇形=nπR/360=LR/216.内公切线长=d-(R-r)外公切线长=d-(R+r)中考数学考点1有理数的加法运算:同号相加一边倒;异号相加“大”减“小”,符号跟着大的跑;绝对值相等“零”正好.2合并同类项:合并同类项,法则不能忘,只求系数和,字母、指数不变样.3去、添括号法则:去括号、添括号,关键看符号,括号前面是正号,去、添括号不变号,括号前面是负号,去、添括号都变号.4一元一次方程:已知未知要分离,分离方法就是移,加减移项要变号,乘除移了要颠倒. 5平方差公式:平方差公式有两项,符号相反切记牢,首加尾乘首减尾,莫与完全公式相混淆.6完全平方公式:完全平方有三项,首尾符号是同乡,首平方、尾平方,首尾二倍放中央; 首±尾括号带平方,尾项符号随中央.7因式分解:一提(公因式)二套(公式)三分组,细看几项不离谱,两项只用平方差,三项十字相乘法,阵法熟练不马虎,四项仔细看清楚,若有三个平方数(项),就用一三来分组,否则二二去分组,五项、六项更多项,二三、三三试分组,以上若都行不通,拆项、添项看清楚.8单项式运算:加、减、乘、除、乘(开)方,三级运算分得清,系数进行同级(运)算,指数运算降级(进)行.成都中考数学考点总结。

2023年四川省成都市中考英语-十二选十(专项练习)

2023年四川省成都市中考英语-十二选十(专项练习)

备战2023成都中考英语-十二选十(专项练习)解题必须考虑的因素:1)词性1:分清简单句、并列句、复合句,再分别对待。

(一)简单句:1:判断缺主语、谓语、宾语、宾语补足语、定语、状语、表语哪一成分2:哪些词性可以作这些成分,再根据所缺词的词义确定该词性的词。

(二)并列句(语法上互不依从的句子):两个完整的句子中间缺词,考虑并列句方面。

1:选择并列联接词---__and_____, __but_____, __until___, __if____, __when____等。

2:复合句:主要根据主句与从句的关系确定是哪一类复合句。

常考的复合句有:3:宾语从句----__whatever___, __what___, __how___, ___who__, ___which__等;4:定语从句----___that____, ___who_____, ___which______, ____whose_____, 5:状语从句---- 时间:__when___, _where__,__why___, __if___, __although___, __if 等;专项练习1短文填空,从下面方框中选出10个单词,将其正确形式填入短文,使短文意思正确通顺(每词限用一次)。

consider every moment neither one politepossible return serious situation usual visitChinese people have their own culture when they give gifts to their family members, friends or relatives.When it is a new-born baby,usually jade or silver bracelet(手镯)would be good,especially1that can make some noise when the baby moves. Certainly, some children's clothes, shoes or gloves would be good, too.When it comes to some old people, something useful for them should 2 .A walking stick, some food such as bird's nests(燕窝)or Chinese mushrooms would be highly welcomed.When 3the future parents-in-law, young people usually choose something valuable, such as some good wine or something meaningful. It is not easy to think of something special for all4.So very often if it is not of any special visit, some fruit such as apples or oranges would be good enough.It's important to know that giving someone gifts should not be a one-way business. The person who gets the gifts should find a chance in the future5thesame favor(人情)by buying a gift of similar value the next time you meet. You can do so simply by6paying a visit with a similar value gift or treating the friend to a meal outside.Don't mind it if your friend doesn't open your present the7he gets it. Chinese people usually think opening the present in front of you would be8and so they choose to put it aside and only open it after you leave.These ideas can only be guidelines. Chinese people are nowadays9about gift-giving than they used to. So, don't worry too much when you visit a Chinese friend or family. Maybe your 10 idea would bring them a lot of surprises. Maybe that'll become another new culture of giving gifts.1.______2.______3._______4._______5.________6._______7.________8.________9.________ 10.________答案:1.ones.2.be considered.3.visiting.4.situations.5.to return.6.either.7.moment. 8.impolite. 9.less serious. 10.unusual.专项练习2短文填空,从下面方框中选出10个单词,将其正确形式填入短文,使短文意思正确通顺(每词限用一次)。

成都市第十二中学(川大附中)中考数学规律问题算式变化类专题

成都市第十二中学(川大附中)中考数学规律问题算式变化类专题

成都市第十二中学(川大附中)中考数学规律问题算式变化类专题一、规律问题算式变化类1.把有理数a 代数410a +-得到1a ,称为第一次操作,再将1a 作为a 的值代入410a +-得到2a ,称为第二次操作,...,若a =23,经过第2020次操作后得到的是( ) A .-7B .-1C .5D .112.观察等式:1+2+22=23-1;1+2+22+23=24-1;1+2+22+23+24=25-1;若 1+2+22+…+29=210-1=m ,则用含 m 的式子表示 211+212+ …+218+219的结果是( ) A .m 2+ mB .m 2+m -2C .m 2-1D .m 2+ 2m3.一只跳蚤在数轴上从原点开始,第1次向右跳2个单位长度,第2次向左跳4个单位长度,第3次向右跳6个单位长度,第4次向左跳8个单位长度,⋯依此规律跳下去,当它第2019次落下时,落点表示的数是( ) A .2019B .2020C .-2020D .10104.“数形结合”是一种重要的数学思维,观察下面的图形和算式:2111==21312+== 213593++== 21357164+++== 213579255++++==解答下列问题:请用上面得到的规律计算:1357...89+++++=( )A .2010B .2015C .2020D .20255.“数形结合”是一种重要的数学思维,观察下面的图形和算式;2111==21342+== 213593++==21357164+++==213579255++++==解答下列问题:请用上面得到的规律计算:135759++++⋯⋯+=( ) A .901B .900C .961D .6256.将2019加上它本身的12的相反数,再将这个结果加上其13的相反数,再将上述结果加上,其14的相反数,…,如此继续,操作2019次后所得的结果是( ) A .1B .-1C .20192020D .20207.已知11(0 1)a x x x =+≠≠-且,231211,11a a a a ==--,…,111n n a a -=-,则 a 2020等于( ) A .xB .x +1C .1x-D .1x x + 8.已知1x ,2x ,⋯⋯2013x 均为正数,且满足122012232013()()M x x x x x x =++++++,122013232012()()N x x x x x x =++++++,则M 与N 之间的关系是( )A .M >NB .M =NC .M <ND .无法确定9.若规定“!”是一种数学运算符号,且则的值为( ) A .B .99!C .9 900D .2!10.观察下列各式:, , ,…计算:3×(1×2+2×3+3×4+…+99×100)=( ) A .97×98×99B .98×99×100C .99×100×101D .100×101×10211.如图,已知ABC 的面积是12,6BC =,点E ,I 分别在边AB ,AC 上,在边BC 上依次作了n 个全等的小正方形,DEFG ,GFMN ,,KHIJ ,则每个小正方形的边长为( )A .1211B .1223n -C .125D .1223n + 12.计算242(21)(21)(21)(21)n +++⋅⋅⋅+的值是( ) A .21n -B .221n -C .421n -D .2221n -13.山西面食不仅是中华民族饮食文化的重要组成部分,也是世界的面食之根.其中,“拉面”远播世界各地.制作方法如图所示,用一根很粗的面条,把两头捏合在一起拉伸,再捏合,反复几次,这根很粗的面条就被拉成许多细的面条,第一次捏合变2根细面条,第二次捏合变4根细面条,第三次捏合变8根细面条,这样捏合到第n 次后可拉出细面条( )A .2n 根B .12n +根C .12n -根D .112n +⎛⎫ ⎪⎝⎭根14.如图是一个按某种规律排列的数阵:根据数阵排列的规律,第n (n 是整数,且n≥4)行从左向右数第(n-3)个数是(用含n 的代数式表示)( ). A 21n -B 22n -C 23n -D 24n -15.已知有理数a ≠1,我们把11a-称为a 的差倒数,如:2的差倒数是112=--1,﹣1的差倒数是()11112=--.如果a 1=﹣2,a 2是a 1的差倒数,a 3是a 2的差倒数,a 4是a 3的差倒数…依此类推,那么a 1+a 2+…+a 109的值是( ) A .8B .﹣8C .6D .﹣616.观察式子:3211=,332212(12)3+=+=,33322123(123)6++=++=,3333221234(1234)10+++=+++=,,根据你发现的规律,计算3333335678910+++++的结果是( ) A .2925 B .2025 C .3225 D .262517.计算111111122334455667-----⨯⨯⨯⨯⨯⨯的结果为( ). A .67 B .67- C .17- D .1718.观察下列各式及其展开式:()2222a b a ab b +=++;()3322333a b a a b ab b +=+++;()4432234464a b a a b a b ab b +=++++;()544322345510105a b a a b a b a b ab b +=+++++…,请你猜想()11a b +的展开式第三项的系数是( ) A .36B .45C .55D .6619.根据等式:()()2111x x x -+=-,()()23111,x x x x -++=-()()324111x x x x x -+++=-,()()4325111,x x x x x x -++++=-……的规律,则可以推算得出2021202020192222...221++++++的末位数字是( )A .1B .3C .5D .720.求23201312222+++++的值,可令220131222S =++++,则23201422222S =++++,因此2014221S S -=-.仿照以上推理,计算出23201315555+++++的值为( )A .201451- B .201351-C .2014514-D .2013514-21.已知T 132,T 276,T 31312,⋯,T n 为正整数.设S n =T 1+T 2+T 3+⋯+T n ,则S 2021值是( ) A .202120212022B .202120222022C .120212021D .12022202122.求1+2+22+23+…+22020的值,可令S =1+2+22+23+…+22020,则2S =2+22+23+24+…+22021,因此2S -S =22021-1.仿照以上推理,计算出1+2020+20202+20203+…+20202020的值为( )A .2020202012020-B .2021202012020-C .2021202012019-D .2020202012019-23.一个自然数的立方,可以分裂成若干个连续奇数的和.例如:23、33和43分别可以“分裂”成2个、3个和4个连续奇数的和,即23=3+5,33=7+9+11,43=13+15+17+19,…若1003也按照此规律来进行“分裂”,则1003“分裂”出的奇数中,最小的奇数是( ) A .9999B .9910C .9901D .980124.观察下列等式:2223471236⨯⨯++=,222245912346⨯⨯+++=,222225611123456⨯⨯++++=,….按照此规律,式子2222123100+++⋅⋅⋅+可变形为( ) A .1001011026⨯⨯B .1001012016⨯⨯C .1001012036⨯⨯D .100101201100⨯⨯25.在明代的《算法统宗》中记载了利用方格进行两数相乘的一种方法,叫做“铺地锦”,如图1,计算4751⨯,将乘数47计入上行,乘数51计入右行,然后以乘数47的每位数字乘以乘数51的每位数字,将结果计入相应的格子中,最后按斜行加起来,得2397,图2用“铺地锦”法表示两个两位数相乘,则a 的值为( )A .7B .5C .3D .2【参考答案】***试卷处理标记,请不要删除一、规律问题算式变化类 1.A 【分析】先确定第1次操作,a1=|23+4|-10=17;第2次操作,a2=|17+4|-10=11;第3次操作,a3=|11+4|-10=5;第4次操作,a4=|5+4|-10=-1;第5次 解析:A 【分析】先确定第1次操作,a 1=|23+4|-10=17;第2次操作,a 2=|17+4|-10=11;第3次操作,a3=|11+4|-10=5;第4次操作,a4=|5+4|-10=-1;第5次操作,a5=|-1+4|-10=-7;第6次操作,a6=|-7+4|-10=-7;…,后面的计算结果没有变化,据此解答即可.【详解】解:第1次操作,a1=|23+4|-10=17;第2次操作,a2=|17+4|-10=11;第3次操作,a3=|11+4|-10=5;第4次操作,a4=|5+4|-10=-1;第5次操作,a5=|-1+4|-10=-7;第6次操作,a6=|-7+4|-10=-7;第7次操作,a7=|-7+4|-10=-7;…第2020次操作,a2020=|-7+4|-10=-7.故选:A.【点睛】本题考查了绝对值和探索规律.解题的关键是先计算,再观察结果是按照什么规律变化的.探寻规律要认真观察、仔细思考,善用联想来解决这类问题.2.C【分析】根据题意,先用m表示出2,然后将所求式子加上2,再减去2,然后利用乘法分配律即可求出结论.【详解】解:∵1+2+2+…+2=2-1=m∴2=m+1∴2+2+ …+2+2=2+解析:C【分析】根据题意,先用m表示出210,然后将所求式子加上210,再减去210,然后利用乘法分配律即可求出结论.【详解】解:∵1+2+22+…+29=210-1=m∴210=m+1∴211+212+ …+218+219=210+211+212+ …+218+219-210=210×(1+2+22+…+29)-210=m(m+1)-(m+1)= m2-1故选C.【点睛】此题考查的是有理数的乘方运算,掌握有理数乘方的意义是解决此题的关键.3.B 【分析】设向右跳动为正,向左跳动为负,根据题意把所有的数字相加即可得到结果; 【详解】解:设向右跳动为正,向左跳动为负, 由题意可得 , 故选:B . 【点睛】本题主要考查了有理数解析:B 【分析】设向右跳动为正,向左跳动为负,根据题意把所有的数字相加即可得到结果; 【详解】解:设向右跳动为正,向左跳动为负,由题意可得()()()()()2468403440364038++-+++-+⋯+-+()()()()246810122403440364038-+-+-+⋯+-+═ 20184038=-+ 2020=, 故选:B . 【点睛】本题主要考查了有理数的加减混合运算,准确计算是解题的关键.4.D 【分析】观察图形和算式的变化发现规律,进而根据得到的规律计算即可. 【详解】解:观察以下算式:发现规律:, ∵2n-1=89 解得n=45, ∴, 故选D . 【点睛】 本题考查了解析:D 【分析】观察图形和算式的变化发现规律,进而根据得到的规律计算即可. 【详解】解:观察以下算式:2111==21312+== 213593++== 21357164+++==213579255++++==发现规律:()21321n n +++-=,∵2n-1=89 解得n=45,∴21357...89452025+++++==, 故选D . 【点睛】本题考查了规律型——图形的变化类,有理数的乘方.解题的关键是根据图形和算式的变化寻找规律.5.B 【分析】观察图形和算式的变化发现规律,进而根据得到的规律计算即可. 【详解】 观察以下算式:发现规律:,解得n=30, ∴, 故选:B . 【点睛】 本题考查了规解析:B 【分析】观察图形和算式的变化发现规律,进而根据得到的规律计算即可. 【详解】 观察以下算式:2111==21312+== 213593++== 21357164+++==213579255++++==发现规律:()21321n n +++-=,∵2n -1=59 解得n =30,∴21357...5930900+++++==, 故选:B . 【点睛】本题考查了规律型——图形的变化类,有理数的乘方.解题的关键是根据图形和算式的变化寻找规律.6.C 【分析】根据题意易得第一次运算的结果为,第二次运算的结果为,第三次运算的结果为,第四次运算的结果为,….由此规律可进行求解. 【详解】解:2019加上它本身的的相反数为:,再将这个结果加上其解析:C 【分析】根据题意易得第一次运算的结果为120192⨯,第二次运算的结果为120193⨯,第三次运算的结果为120194⨯,第四次运算的结果为201951⨯,….由此规律可进行求解.解:2019加上它本身的12的相反数为:1120192019201922-⨯=⨯,再将这个结果加上其13的相反数为11112019201920192233⨯-⨯⨯=⨯,再将上述结果加上,其14的相反数为11112019201920193344⨯-⨯⨯=⨯,….由此规律可得第n 次的运算结果为112019n +⨯,∴第2019次后所得结果是120192019202020191⨯=+;故选C . 【点睛】本题主要考查有理数的混合运算,熟练掌握有理数的混合运算是解题的关键.7.B 【分析】把a1代入确定出a2,进而求出a3,a4,找出结果的规律,判断即可. 【详解】解:把a1=x+1代入得:, 依此类推,以循环, ∵2020÷3=673…1, 则a2020=x+1.解析:B 【分析】把a 1代入确定出a 2,进而求出a 3,a 4,找出结果的规律,判断即可. 【详解】解:把a 1=x+1代入得:2341111,,111(1)11()11x a a a x x x x x x x ==-====+-++---+, 依此类推,以11,,1xx x x +-+循环, ∵2020÷3=673…1, 则a 2020=x+1. 故选:B . 【点睛】此题考查了分式的混合运算,探索与表达规律.熟练掌握运算法则是解本题的关键.8.A【详解】试题分析:依题意设=A ,设=BM=(A-x2013)×B ;N=A×(B-x2013)所以M-N=(A-x2013)×B- A×(B-x2013)="AB-B" x2013-AB+解析:A【详解】试题分析:依题意设122013x x x +++=A ,设232013x x x +++=BM=(A-x 2013)×B ;N=A×(B-x 2013)所以M-N=(A-x 2013)×B- A×(B-x 2013)="AB-B" x 2013-AB+ A x 2013=(A-B )x 2013易知A-B=x 1>0,x 2013>0.则M >N考点:多项式运算点评:本题难度中等,主要考查学生对多项式运算知识点的掌握.为中考常见题型,要求学生牢固掌握解题技巧.9.C【详解】根据题意可得:100!=100×99×98×97×...×1,98!=98×97× (1)∴ =100×99="9" 900,故选C .解析:C【详解】根据题意可得:100!=100×99×98×97×...×1,98!=98×97× (1)∴ =100×99="9" 900,故选C .10.C【详解】试题分析:根据给出的式子得出一般性的规律,从而得到答案.考点:规律题解析:C【详解】试题分析:根据给出的式子得出一般性的规律,从而得到答案.考点:规律题11.D【分析】设正方形的边长为x ,根据正方形的性质以及相似三角形性质先求出相应情况下的正方形边长,然后进一步寻求规律即可.【详解】当作了1个正方形时,如图所示,过A 作AM ⊥BC ,垂足为M ,交解析:D【分析】设正方形的边长为x ,根据正方形的性质以及相似三角形性质先求出相应情况下的正方形边长,然后进一步寻求规律即可.【详解】当作了1个正方形时,如图所示,过A 作AM ⊥BC ,垂足为M ,交GH 于N ,∴∠AMC=90°,∵四边形EFGH 为正方形,∴GH ∥BC ,GH=GF ,GF ⊥BC ,∴∠AGH=∠B ,∠ANH=∠AMC=90°,∵∠GAH=∠BAC ,∴△AGH~△ABC ,∴AN:AM=GH:BC ,∵△ABC 面积为12,BC 为6, ∴1161222ABC s BC AM AM ∆===, ∴AM=4,设GH=x , ∵GF=NM=GH ,∴AN=AM−NM=AM−GH= 4x -,∴464x x -=, ∴125x =, 同理,当2n =时,根据正方形性质可得:DN=2DE , ∴244DN DE BC -=, ∴127DN =,以此类推,当为第n 个正方形时,每个小正方形边长为:1223n +, 故选:D.【点睛】 本题主要考查了正方形性质以及相似三角形性质的综合运用,熟练掌握相关概念是解题关键.12.C【解析】【分析】原式乘以变形的1,即(2-1),变形后,利用平方差公式计算即可得到结果.【详解】解:=(22-1)(22+1)(24+1)…(22n+1)=(24-1)(24+1)…解析:C【解析】【分析】原式乘以变形的1,即(2-1),变形后,利用平方差公式计算即可得到结果.【详解】解:242(21)(21)(21)(21)n +++⋅⋅⋅+=(22-1)(22+1)(24+1)…(22n +1)=(24-1)(24+1)…(22n +1),=(28-1)(28+1)…(22n +1),=(22n -1)(22n +1),=24n -1,故选C .【点睛】此题考查了平方差公式,熟练掌握平方差公式及巧添1=(2-1)是解本题的关键. 13.A【分析】找规律,然后根据有理数的乘方的定义列出更加一般的情况即可求解.【详解】解:第一次捏合变2根细面条,可以看成是第二次捏合变4根细面条,可以看成是第三次捏合变8根细面条,可以看成是解析:A【分析】找规律,然后根据有理数的乘方的定义列出更加一般的情况即可求解.【详解】解:第一次捏合变2根细面条,可以看成是12第二次捏合变4根细面条,可以看成是22第三次捏合变8根细面条,可以看成是32依据这个规律下去第n次捏合可拉出细面条的根数为:2n.故答案为:A.【点睛】本题借助生活中的实际例子考查了有理数的乘方的定义,理解乘方的意义是解题的关键. 14.C【分析】观察数阵排列,可发现各数的被开方数是从1开始的连续自然数,行数中的数字个数是行数的2倍,求出n-1行的数字个数,再加上从左向右的第n-3个数,就得到所求数的被开方数,再写成算术平方根的解析:C【分析】观察数阵排列,可发现各数的被开方数是从1开始的连续自然数,行数中的数字个数是行数的2倍,求出n-1行的数字个数,再加上从左向右的第n-3个数,就得到所求数的被开方数,再写成算术平方根的形式即可.【详解】由图中规律知,前(n-1)行的数据个数为2+4+6+…+2(n-1)=n(n-1),∴第n(n是整数,且n≥4)行从左向右数第(n-3)个数的被开方数是:n(n-1)+n-3=n2-3,∴第n(n是整数,且n≥4)行从左向右数第(n-3故选:C.【点睛】本题考查了数字规律的知识;解题的关键是熟练掌握数字规律、二次根式的性质,从而完成求解.15.B【分析】根据题意,可以写出这列数的前几项,从而可以发现数字的变化规律,从而可以求得所求式子的值.【详解】解:由题意可得,a1=-2,,a4=-2,…,则,∴a1+a2+…+解析:B【分析】根据题意,可以写出这列数的前几项,从而可以发现数字的变化规律,从而可以求得所求式子的值.【详解】解:由题意可得,a1=-2,211 1(2)3a==--,31312 13a==-,a4=-2,…,则123131 2326a a a++=-++=-,∴a1+a2+…+a109=(a1+a2+a3)+(a4+a5+a6)+…+(a106+a107+a108)+a109=136(2) 6⎛⎫-⨯+- ⎪⎝⎭=-6+(-2)-8,故选:B.【点睛】本题考查数字的变化类,解答本题的关键是明确题意,发现数字的变化特点,求出所求式子的值.16.A【分析】根据题意找到规律:即可求解.【详解】∵,,,…,,∴.【点睛】本题主要考查了有理数的混合运算,规律型-数字变化类.此题将求的值的问题运用规律转化为求的问解析:A【分析】 根据题意找到规律:2333321123(123)(1)2n n n n ⎡⎤++++=++++=+⎢⎥⎣⎦即可求解. 【详解】∵3211=, 332212(12)3+=+=,33322123(123)6++=++=,3333221234(1234)10+++=+++=,…,33332123123()n n ++++=++++, ∴3333335678910+++++ 33333333(12310)(1234)=++++-+++ 22(12310)(1234)=++++-+++221110(101)4(41)22⎡⎤⎡⎤=⨯⨯+-⨯⨯+⎢⎥⎢⎥⎣⎦⎣⎦225510=-2925=.【点睛】本题主要考查了有理数的混合运算,规律型-数字变化类.此题将求3333335678910+++++的值的问题运用规律转化为求33333333(12310)(1234)++++-+++的问题是解题的关键.17.D【分析】将式子进行变形,然后计算即可.【详解】解:==【点睛】本题考查有理数的计算,关键在于进行变形.解析:D【分析】将式子进行变形,然后计算即可.【详解】解:111111 122334455667 -----⨯⨯⨯⨯⨯⨯=11111111111 1()()()()() 22334455667 -----------=1 7【点睛】本题考查有理数的计算,关键在于进行变形.18.C【分析】利用所给展开式探求各项系数的关系,特别是上面的展开式与下面的展开式中的各项系数的关系,可推出的展开式第三项的系数.【详解】解:依据规律可得到:第三项的系数为1,第三项解析:C【分析】利用所给展开式探求各项系数的关系,特别是上面的展开式与下面的展开式中的各项系数的关系,可推出11()a b +的展开式第三项的系数.【详解】解:222()2a b a ab b +=+++=+++33223()33a b a a b ab b4322344()464a b a a b a b ab b +=++++554322345()510105a b a a b a b a b ab b +=+++++⋯⋯∴依据规律可得到:2()a b +第三项的系数为1,3()a b +第三项的系数为312=+,4()a b +第三项的系数为6123=++,⋯11()a b +第三项的系数为:10(101)123910552⨯++++⋯++==. 故选:C .【点睛】本题考查了数字规律型,理解题意,找到系数的规律是解题的关键. 19.B【分析】利用题目给出的规律:把乘(2-1)得出22022-1,研究22022的末位数字规律,进一步解决问题.【详解】解:由题目中等式的规律可得:=(2-1)×=22022-1,21解析:B【分析】利用题目给出的规律:把2021202020192222...221++++++乘(2-1)得出22022-1,研究22022的末位数字规律,进一步解决问题.【详解】解:由题目中等式的规律可得:2021202020192222...221++++++=(2-1)×2021202020192(222...221)++++++21的末位数字是2,22的末位数字是4,23的末位数字是8,24的末位数字是6,25的末位数字是2…,所以2n的末位数字是以2、4、8、6四个数字一循环.2022÷4=505…2,所以22022的末位数字是4,22022-1的末位数字是3.故选:B【点睛】此题考查了平方差公式,乘方的末位数字的规律,尾数特征,注意从简单情形入手,发现规律,解决问题.20.C【分析】类比题目中所给的解题方法解答即可.【详解】解:设a=1+5+52+53+ (52013)则5a=5(1+5+52+53+…+52013)=5+52+53+…+52013+5201解析:C【分析】类比题目中所给的解题方法解答即可.【详解】解:设a=1+5+52+53+ (52013)则5a=5(1+5+52+53+…+52013)=5+52+53+…+52013+52014,∴5a-a=(5+52+53+…+52013+52014)-(1+5+52+53+…+52013)=52014-1,即a=2014514.故选:C.【点睛】本题是阅读理解题,类比题目中所给的解题方法是解决问题的基本思路.21.A【分析】根据数字间的规律探索列式计算【详解】解:由题意可得:T1=,T2=,T3=∴Tn=∴S2021=T1+T2+T3++T2021 =======解析:A【分析】根据数字间的规律探索列式计算【详解】解:由题意可得:T 1312+1=212⨯⨯,T 2723+1=623⨯⨯,T 31334+1=1234⨯=⨯∴T ()()1+11n n n n ++ ∴T 2021=20212022+120212022⨯⨯ ∴S 2021=T 1+T 2+T 3+⋯+T 2021 =371320212022+1+++...261220212022⨯+⨯ =11111++1++1++...1+261220212022+⨯ =11112021++++...+261220212022⨯ =11112021++++...+12233420212022⨯⨯⨯⨯ =11111112021+1++...+2233420212022⎛⎫-+--- ⎪⎝⎭ =12021+12022⎛⎫-⎪⎝⎭ =202120212022【点睛】本题考查实数数字类的规律探索,探索规律,准确计算是解题关键.22.C【分析】由题意可知S = 1+2020+20202+20203+…+20202020①,可得到2020S =2020+20202+20203+…+20202020+20202021②,然后由②-①解析:C【分析】由题意可知S = 1+2020+20202+20203+…+20202020①,可得到2020S =2020+20202+20203+…+20202020+20202021②,然后由②-①,就可求出S 的值.【详解】解:设S = 1+2020+20202+20203+ (20202020)则2020S =2020+20202+20203+…+20202020+20202021②由②-①得:2019S =20202021-1 ∴2021202012019S -=. 故答案为:C .【点晴】本题主要考查探索数与式的规律,有理数的加减混合运算.23.C【分析】根据“23=3+5;33=7+9+l1;43=13+15+17+19”,归纳出m3“分裂”出的奇数中最小的奇数是m (m ﹣1)+1,把m =100代入,计算求值即可.【详解】解:23=解析:C【分析】根据“23=3+5;33=7+9+l1;43=13+15+17+19”,归纳出m 3“分裂”出的奇数中最小的奇数是m (m ﹣1)+1,把m =100代入,计算求值即可.【详解】解:23=3+5;33=7+9+l1;43=13+15+17+19;∵3=2×1+1,7=3×2+1,13=4×3+1,∴m 3“分裂”出的奇数中最小的奇数是m (m ﹣1)+1,∴1003“分裂”出的奇数中最小的奇数是100×99+1=9901,【点睛】本题考查了数字变换规律,有理数的乘方,观察数据特点,正确找出数字的变化规律是解题的关键.24.B【分析】根据已知等式归纳类推出一般规律,由此即可得.【详解】,,,归纳类推得:,其中n 为正整数,则,故选:B .【点睛】本题考查了有理数运算的规律型问题,正确归纳类推出一般规律解析:B【分析】根据已知等式归纳类推出一般规律,由此即可得.【详解】()()2223313434712366⨯+⨯+⨯⨯++==, ()()222244145459123466⨯+⨯+⨯⨯+++==, ()()222225515656111234566⨯+⨯+⨯⨯++++==, 归纳类推得:()()()()222111211266n n n n n n n n ++++++++==,其中n 为正整数,则()()222210010012100110010120123100166⨯+⨯⨯++++⨯⨯⋅⋅⋅+==, 故选:B .【点睛】 本题考查了有理数运算的规律型问题,正确归纳类推出一般规律是解题关键. 25.A【分析】设4a 的十位数字是m ,个位数字是n ,根据“铺地锦”的计算方法,把方格填完整,再列出三元一次方程组,即可求解.【详解】设4a的十位数字是m,个位数字是n,由题意可知,方格里的数字,解析:A【分析】设4a的十位数字是m,个位数字是n,根据“铺地锦”的计算方法,把方格填完整,再列出三元一次方程组,即可求解.【详解】设4a的十位数字是m,个位数字是n,由题意可知,方格里的数字,如图所示,∴2116410m a an aa m n+=+⎧⎪+=-+⎨⎪=+⎩,解得:287mna=⎧⎪=⎨⎪=⎩,∴a的值为:7.故选A.【点睛】本题主要考查三元一次方程组的应用,根据等量关系,列出方程组,是解题的关键.。

四川省成都市第七中学2023年中考英语传统文化素材-十二选十(考前押题必刷)

四川省成都市第七中学2023年中考英语传统文化素材-十二选十(考前押题必刷)

2023年成都中考英语-传统文化素材-十二选十(考前押题必刷)1传统文化类单词-考前必知(一)中国节日一.春节Spring Festival二.元宵节the Lantern Festival三.端午节Dragon Boat Festival四.中秋节Mid-Autumn Festival五.七夕节Qiqiao Festival (the Chinese Valentine’s Day)(二)中国文化元素一. 长城(The Great Wall)二. 饺子(Dumplings)三. 筷子(Chinese Chopsticks)四. 中国功夫(Chinese kung fu)五. 汉字(Chinese characters)六. 秧歌舞(Yangko)七. 针灸(Acupuncture)八. 中国龙(Chinese Dragon)九. 中国印章(Chinese Seal)十. 京剧(Chinese Beijing Opera)十一. 中国成语(Chinese Idioms)十二. 丝绸(Silk)十三.中国园林 Chinese Classical Garden十四.文房四宝(The Four Treasures of the Study)十五. 中国印章(Chinese Seal)十六. 天干地支(Chinese Era)十七.中国画(The Chinese paitings)十八.中西医(Chinese Medicine)十九.书法艺术(The Art of Calligraphy )二十.放风筝(Kite-flying)(三)中华习俗一.餐桌礼仪Table Manners(1)二.餐桌礼仪Table Manners(2)三.中国人崇尚的颜色China’s Favorite Colors四.喝茶The Tea-Drinking(1)五.The Tea-Drinking(2)喝茶六.The Secret of Numbers 数字的秘密七.美食的色相The Color of Food第一篇:端午节Dragon Boat Festival⑴It is on the fifth of the fifth lunar month.⑵It honours the famous ancient poet, Qu Yuan.⑶People gather to watch the colorful “Dragon Boat Races”(龙舟比赛).⑷People eat rice dumpings on that day.⑴端午节在农历五月初五。

中考之十二选十

中考之十二选十

十二选十选词填空(十二选十)一、对于选词填空的认识“选词填空”要求学生利用所给的12个词汇(一般有名词、代词、动词、形容词、副词、数词、冠词、介词和连词等)补全短文。

这不仅考察了学生的阅读能力,更重要的是考察学生的语言知识掌握能力。

学生除了要有一定的阅读能力,积累丰富的语言知识,还需要掌握一定的解题技巧。

二、选词填空的解题步骤1. 观察2. 标注3. 通读全文4. 填词5. 检查三、解题技巧1. 观察词性及意思做题前先观察方框中所给单词的词性及意思。

2. 标注所给单词可否转化对于词性及可能存在的变化形式进行标注。

以下为各种词性经常存在的变化。

四、例题解析As we all know, Charles Dickens is considered to be a great English writer. He’s very famous not only in Britain, but also in many other ___1__ in the world. He was born in 1812 and he lived in London. He wrote lots of books, and he also liked ___2__. He was an actor.Maybe it’s interesting to hear that and that’s __3___ his books were so good. He gave public readings of his stories that were very popular. His stories first appeared in a magazine in parts. People always wanted __4___. He wrote a lot, and most of them are popular. There are films and plays of them as well. Oliver Twist became a famous ___5__ play, and Great Expectations was a ___6__ film. Dickens’ early life was very hard. His family was poor, and his mother sent him out to work in a factory when he was 12. He ___7__ it, but he used his experiences in his ___8__. He married Catherine Hogarth and they had a big family. When he ___9__ in 1870, he was writing a story. But what a pity! We’ll never know __10___ it ended.一、选词填空(1)Light travels at a speed(速度) which is about a million times 1 . ________ than that of sound. 2. ________ one second, light travels about 300,000 kilometers, but sound travels only 340 meters. You can get some idea of this difference by 3. ________ the start of a running match. If you stand far away from the starter(发令员), you can see smoke 4.________ from his gun 5.________ the sound reaches your ears.The fast speed of light produces some strange facts. The nearest star is 6. ________ far away that light which you can see from it tonight started to travel to you four years 7. ________ at a speed of nearly two million kilometers every minute. The light from some of tonight’s started on 8. ________ journey towards you even before you were born.So, if we want to be honest(诚实), we 9. ________ say , “ The stars are shining brightly tonight.” We have to say, “ The stars look nice. They were 10. ________ four years ago but their light has just reached our earth. ”(2)A man was sitting in the doctor’s office. He was telling the doctor about his 1 . ________ .“I like football, Doctor.” He said, “Please help me. My life has 2. ________ been a good one since I became 3. ________ in football and it is getting worse and worse. I can’t even 4.________ from it in my sleep. When I close my 5.________, I’m out there in the football field and 6. ________ after a flying ball. When I wake up, I’m more 7. ________than I was before I went to bed. What am I going to do? ”The doctor sat back and said, “ First of all, you 8. ________ to do your best not to dream(做梦) about football. Before you fall asleep, try to 9. ________about something else. Try to think that you are at a party and someone is going to give you several million dollars.”“ Are you crazy (疯了) ?” the man shouted, “ I’ll 10. ________ the ball !”( 3 )Bixi comes to Toronto and OttawaBig cities like Toronto and Ottawa have a lot of traffic. All of those cars, taxis, trucks and buses create a lot of pollution. ____ it is in rushhour, people find it difficult to get around the city.Some people ride bikes in the city. ____, lots of bikes get stolen. Also, it can sometimes be difficult to find an empty spot when you want to store your bike downtown. Those things can stop people from ____ their bike around a big city. But because biking is a much _____ way to travel than using a car, the City of Toronto and the City of Ottawa wanted to encourage people to ride a bike.This summer, Toronto and Ottawa partnered a company ____ Bixi to offer a new program which lets people rent a bike for short trips. People can ride from one place to another downtown ____ having to own, use or lock up their own bicycles.There are _____ of Bixi stations throughout the cities, with more than 2000 bikes ready for people to rent. You must be 18 or _____ to use a Bixi bike. The rider pays for the bike at a station, using a credit card. They pay $ 5for every bike.The Bixi system is “green”, is not too expensive and makes the city smile.( 4 )Mr. Hill arrives at London Airport, at the end of a three-week holiday in 1. ________. Usually he wears a beard(蓄着胡须). Since it has been 2.________ there, he has taken it off (剃掉). But his passport photo showshim with his 3. ________.An officer looks at the 4. ________for a moment, and says,"Will you excuse me? Please sit down. I shan't keep you long." With this, he walks away, shows the photo to a second 5.________, and says: "I know that face." The second officer looks at the 6. ________ and asks where Mr. Hill has come from. When he hears that Mr Hill has arrived back from Paris, the 7.________ officer smiles and says: "An Englishman with a beard stole a painting in Paris on Friday, And that man looks just the kind of man..."8.________ it comes to the first officer who Mr. Hill is. He returns to him, and asks: "Did you 9. ________ at the No.2. High School?" When Mr. Hill answers, 10. ________, that he did, the first officer smiles and says: "I thought so. I'm Jack Smith. You taught me French. You haven't changed a bit."一、对于选词填空的认识“选词填空”要求学生利用所给的12个词汇(一般有名词、代词、动词、形容词、副词、数词、冠词、介词和连词等)补全短文。

【教育资料】十二选十技巧 中考英语词汇运用学习专用

【教育资料】十二选十技巧 中考英语词汇运用学习专用

中考英语十二选十答题技巧在中考英语的各个题型中,十二选十短文填空题一直是困扰很多学生的难点所在,以下就是我为大家整理出的解题思路。

解题思路:句子类型——单词类型(词性)——单词形式1. 句子类型:简单句(无连词)并列句(并列连词)复合句(从属连词)⑴简单句:根据简单句的句子结构确定所缺词属于句子中的哪一成分(主语、谓语、宾语、宾语补足语、定语、状语、表语等),哪些词性可以作这些成分,再根据所缺词的词义确定该词性的词。

⑵并列句(语法上互不依从的句子):如果是两个完整的句子中间缺词,则可以从并列句方面考虑,选择并列连词。

如:and(表顺接), so(所以,表因果),but(但是,表转折),or(否则,表转折)however(然而,表转折)⑶复合句:主要根据主句与从句的关系确定是哪一类复合句。

常考的复合句有:宾语从句——that, if, whether, how, what等;状语从句——时间:when, while, before, after, as soon as, until, since等;条件:if等;原因:because等;方式:how等;结果:so...that..., such...that...等;让步:although, though等;比较:as...as..., not so ...as..., ...than..., as...as possible等;定语从句——who, whom, whose, which, that2. 单词类型(词性):从习惯用法、固定搭配和词与词之间的修饰方面考虑词性。

⑴名词的修饰词可能是——形容词、名词、数词、代词、冠词等;动词的修饰词可能是——情态动词、助动词、副词等;形容词的修饰词可能是——副词、定冠词、序数词等。

⑵形容词作修饰词——主要修饰名词或代词,在句子中可作定语、表语和宾语补足语等;副词作修饰词——主要修饰形容词、动词、其他副词以及句子等。

12选10的做法

12选10的做法

根据平时的观察,学生在做英语的“选词填空”时,遭遇较多困难,有的甚至条件反射一样畏惧或厌烦。

在此,我把平时积累的解题技巧和训练技巧略作归纳,希望能给有需要的学生朋友提供一点帮助。

“选词填空”要求学生利用所给的12个词汇(一般有名词、代词、动词、形容词、副词、数词、冠词、介词和连词等)补全一篇有10个空缺的短文。

要攻克这一难关,学生除了要进行大量的课外阅读,积累丰富的语言知识外,还需掌握一定的解题技巧。

1.在拿到题目后,不要急于看文章,首先对备选的词汇研究几遍,对词性作简单的标记,例如:名词-n.,动词-v.,形容词-a.,副词-ad. 等等。

同时对词义作初步的理解。

2.通读全文,语义完整、适用、合乎逻辑是做好填词的前提。

通过上、下文的句子,充分理解短文的内容,注意发现固定搭配关系,凭借语感积极主动地猜测空格中所缺的信息,根据需要去备选词汇中寻找匹配的答案。

3.在选定单词后,不要轻率地填入。

在填词过程中,需要瞻前顾后,既要符合本句的含义,又要保证句式结构的正确。

当你选定一个名词时,要考虑是否要把它变成复数或“所有格”形式。

例如:match-matches,friend-friend"s/friends"。

其他还要考虑名词是否需要变成形容词,例如:sun-sunny, use-useful/useless/used, danger-dangerous;在遇到动词时,要有意识地去考虑时态和语态的变化以及非谓语动词形式的变化(动词不定式- to do, 现在分词-doing, 过去分词-done, 固定搭配-enjoy doing sth./used to do sth./have sth. done…);形容词和副词填空时要主动去判定是否需要变成比较级或最高级,还有它们之间的相互转换以及形容词变名词的需求也需考虑,例如:interesting-more /the most interesting, happy-happily,happy -happiness; 填入代词时,需注意辨别主格、宾格、名词性和形容词性物主代词或反身代词的用法;数词方面要注意基数词和序数词的变化以及分数和虚实数的用法,例如:three-third, 2/3-two thirds, one thousand/thousands of ;冠词只需要在a或an之间判别,如a girl/an old man; 当遇到介词和连词时,就更简单,只要符合上下文逻辑或固定短语搭配,填入即可。

成都中考英语B卷完成对话+12选10短文填空Practice test 15

成都中考英语B卷完成对话+12选10短文填空Practice test 15

1. Complete the conversation by filling the spaces with proper words based on the context. One word only for each blank.A: Hi,John.You look upset.What’s (1) ?B:Hi,Mary.My kids are not interested in (2) .Would you like to give me some (3)_______ on how to encourage them?A: Of course. Let me know more about them.B: They are always busy with computer games,TV…A: It’s a good idea to give them some books for their age, (4) on their interests.B: I couldn’t agree with you more. Anything else?A: Oh, I forgot one important thing.Do you often read?B: Does it (5) ?A: Yes, if you want your kids to read.You have to read.A good tip is: every night, at the same time, you turn the TV off and (6) a book to read.For children, you can give them magazines with lots of pictures and with texts, too. Later, you can choose other magazines with (7) pictures than texts.B: That sounds good (8) it is a bit difficult for me.A: And don’t forget to (9)_______ them when they finish and do a good job.B: Don’t worry.That’s (10) I always do.123456789102. Complete the passage by filling the spaces with the proper form of the words given in the box.make, they, fifteen, look, will, century, idea, use, until, mind, depend, decideMaps are very (1) and important to us today, but they are not a new invention.In fact, people (2) and used maps for (3) . It is believed that the first map of the world may be a 2600-year-old clay (粘⼟) map from Babylonia.People in the past did not know what the world really (4) like, but they had many (5) about it.Mapmakers could not draw accurate (精确的)maps of the earth until people began traveling around the world in the (6) century, mapping small areas each time.In the eighteenth and nineteenth centuries, people began making correct maps of countries, but the accurate maps of the world were not made (7) the 1890s.Maps today are useful, cheap, and easy to understand.People (8) on maps every day.What (9) our lives be like without (10) ?12345678910。

最新成都中考十二选十--句型公式

最新成都中考十二选十--句型公式

句型公式教学目标:★★★★★☆学生能够通过快速辨认句型公式判断词形。

一、通过标志词判断词形★★☆☆☆☆1.冠词、名词类art. +____n.____此结构的特点是冠词后少空,而后又没有名词,那么所填空常为名词。

a book an hour the policemenThis is a book. I need an hour.1. However, one of the ____near my house seems to use more of these bags than eve before.(shop)此结构的特点是冠词后少空,后面再接一个名词,这种情况下空里常填的词语有形容词(最高级)、序数词、名词所有格。

1. the beautiful girl the first person the Teachers’ Day2. She is the first person to finish this task.3. What's the real meaning of the word "peace"? The _____story may tell us something about it. (follow)4. The ________person, on the other hand, works little and just wait to see them pass by.1.Before the beginning of every lecture, I found an ____5____ phenomenon(现象). (interest)2.There was once a king who offered an award to an artist who could paint the _______ picture of peace. (good)____仅用一个词修饰____ + n.此结构的特点是名词前仅有一个词语修饰,此空经常的填法有形容词、形容词性物主代词、名词所有格、指示代词单数。

成都中考英语12选10专项讲解

成都中考英语12选10专项讲解

短文填空专项训练方法技巧篇12选10 是成都中考B卷的必考题目,也是学生认为最难的题型之一。

要做好这道题,当首先得有较好的阅读能力。

而培养阅读能力的最佳办法是每次连续做1篇完形填空和4篇阅读理解。

一周三到四次即可,如此训练1个月,一定会有非常明显的效果。

然而有了良好的阅读理解能力,也不一定能做好12选10。

很多学生在做12选10 时总是从意义入手,其做法是:边读边选,每当碰到一个较难抉择的空格,就将12个单词一一带进去尝试,看意义上说得通还是说不通。

如果简单的题目,采用这种方法也许有效,但是纵观成都英语中考,12选10都比较难,所以这样做的后果就是,很快就会感到思路不清,头晕眼花,从而影响其它题目的解答。

下面就12选10的做题步骤及技巧讲解如下:1.审题(1)审单词;理解词意,联想变形将单词的变形提到第一步,就会避免思路的混乱,也会加深对单词的理解,有助于做题过程中更方便、迅速、准确的选择单词。

(2)审文章了解文章大意,上下文逻辑,利用自己具备的常识、文化背景,以及做题经验做第一步预测。

2.具体做题(1)词性判断因此,我们有必要学会另一种解答方法——词性判断法。

即通过空格前后的单词来确定空格中应填入什么词性的单词,从而缩小选择范围。

要掌握词性判断法,首先就应该在平常的单词学习中注意留意单词的词性。

其次是要知道词形转换。

比如,rain、ice等名词怎么转换成形容词;happy、ill等形容词怎么转换成名词;perform、predict怎么转换成名词,等等。

(2)句意判断。

通过词性判断缩小选择范围后,然后再结合意义在这个较小的范围中选择单词。

有时候,即使文章读得不是很懂,依然可以依据词性判断法做出正确的判断。

词性判断缩小范围,意义确定唯一答案,通过此法,我们往往可以做到12选10跟完形填空一样简单。

(3)借助于句子结构判断。

通过对句子结构进行分析后,判断空格部分缺什么成分,然后再结合句意进行选择。

初中英语中考必背语法公式总结

初中英语中考必背语法公式总结

初中英语中考必背语法公式总结名词公式公式1可数名词变复数:①一般+s book→books②“辅音+y”变y为i再加es city→cities③变fe为v再加es leaf→leaves④“辅音字母+o”结尾+es tomato→tomatoes⑤以s,x, ch,sh结尾+es class→classes公式2 不可数名词表达数量:①a/an+单数量词+of+可数名词复数/不可数名词:a pair of glasses 一副眼镜②基数词+复数量词+of+可数名词复数/不可数名词:four bottles of water 四瓶水名词所有格:公式3①名词单数词尾(不以s结尾)+'s Tom’s book 汤姆的书②名词复数词尾(以s结尾)+’Students’ books 学生们的书公式4 A+and+B+'s 表示两者共有:Andy and Steve's安迪和史蒂夫的A+'s+and+B+'s 表示两者分别拥有:Andy's and Steve's安迪的和史蒂夫的公式5无生命事物的所有格:名词+of+名词:the gate of the library 图书馆的大门公式6双重所有格:名词+of+名词的's所有格/名词性物主代词:a friend of Bill's比尔的一位朋友冠词公式公式7 the+自然界中独一无二的事物The sun is shining in the sky. 太阳在天空中闪耀。

公式8 the+序数词/最高级:She is the tallest girl in her class. 她是班里最高的女孩。

公式9 the+表示姓氏的复数名词:The Kings are having dinner. 金一家人/金夫妇俩正在吃饭。

公式10 the+表示用于演奏的西洋乐器前:She likes to play the violin. 她喜欢拉小提琴。

成都英语初二用12选10句子结构公式 ways to improve 2018.1.25

成都英语初二用12选10句子结构公式 ways to improve 2018.1.25

12选10句子公式Ⅰ. 完整句子公式1.(adv), + S +( ) V + O ( ) = Whole Sentence NB: oneself作advExempli gratia: She ( ) went back to her hometown, after she went abroad for further study. ( do, hard, no)Eg. ( ), the two-year-old girl doesn’t know her name, but even her pet dog knows its name-Candy. ( excited, interesting)★exceptional case(特殊情况):S +V +O + (adj): 形容词放不定代词后修饰不定代词,后置定语;else置于疑问词和不定代词后,someone else, what else.Eg. Ellie, I have something ( ) to tell you. (interest, live, such)Eg. The boss want someone( )to help him deal with the issues. ( excite,kinds, help)2.(prep)+ n,S + V + O = Whole Sentence + (prep) +nExempli gratia:(七中实验初二下6月月考)In Turkey, there is a cave hotel 2 a television, furniture, and a bathroom in each room. (with/without)3. (to do/doing/done) + n, S + V + O = Whole Sentence(09成都中考)One evening, the old man told the children that he would give them 25 cents each week2 them play football in the street at night. (to see)A.payB. explainC. seeD. send 注:let, make, see, hear, notice sb. do sth.4. S + V + O+( conj )+ S + V +OEg. Everyone should start exercising, ( ) it’s too late. (although, when, after, before)Eg. I really wonder ( ) you will have time to help me move on Sunday. ( what, if, that , and )Ⅱ. 标志词判断词形1. Prep + (n / doing sth /adj + n )∨NEg. How we dress ourselves and what we wear tell people about ( ) we are.Eg. I don’t have enough time to study English, but I try to learn English by( ) the following ways. (this, mean, help, use )Eg. Although Eiffel designed the tower for people to visit, it was also for 9 use. (easy, visit, science )2. conj + (doing/ to do ) sth.Eg. While ( ) in Italy, Kobe learned to speak fluent Italian and started playing basketball. (排除名词,形容词,副词)→(begin, break, move, life)Eg. When ( ) the exam, we should be careful. (in, do, like )Eg. Mr. Li, we want to know when to leave.After finishing the exam, you should know what to do.3. “before” could be used as a preposition, conjunction or adverb.Eg. The kid mustn’t hang out with his friends before he finishes his homework.(conjunction)Eg. In order to get to the meeting on time, you have to get up (before ) eight o’clock. (preposition)4. ①the/a/an/some+( adj ) +n. ②the/a/an/some + ( n )Eg. The poor need to be given some warm clothes to pull through the strangely cold winter.(the rich)Eg. (07年成都中考)I like basketball and I want to be the 3 player in college.(real, well, man, happy)5. ①make sb/sth + do sth②make sb/sth adj ③make sth.制作Eg. I will find some less difficult reading materials so that it won’t make me my confidence(信心). (easy, increase, lost)Eg. Running every day makes a person all his life. (excite, like, happy, health)Eg. Wood is usually used to make paper.6. and/but/or后接完整主谓宾句子,或者与前句并列共用一个主语。

初中英语九年级12选10答题方法

初中英语九年级12选10答题方法

初中英语九年级12选10答题方法Facing the challenge of the 9th grade English exam can be daunting, with 12 questions to answer in a limited time. However, by mastering effective strategies and techniques, students can maximize their chances of success. This essay will explore 10 proven methods to help 9th graders navigate the exam with confidence and achieve their target score.Firstly, it is crucial to thoroughly understand the exam format and question types. This knowledge allows students to anticipate the kinds of tasks they will encounter and prepare accordingly. Familiarize yourself with the distribution of marks, the expected lengths of responses, and any specific instructions or rubrics provided by the examination board.Next, develop a detailed study plan that covers the key topics and grammar concepts tested in the exam. Allocate sufficient time for comprehensive revision, ensuring you have a solid grasp of vocabulary, sentence structures, and reading comprehension skills. Regularly practice past papers and sample questions to identify yourstrengths and weaknesses, tailoring your study approach to address any areas that require more attention.When it comes to the exam day, time management is of the utmost importance. Carefully allocate the available time to each section, ensuring you don't spend too long on any one question and leaving enough time to review your answers. Develop a strategy for quickly skimming through the paper, identifying the questions that play to your strengths, and tackling those first.Active reading is a critical skill for success in the English exam. When approaching reading comprehension passages, quickly skim the text to gain an overall understanding, then carefully read through again, actively engaging with the content. Identify key information, underlying themes, and the author's purpose, rather than simply scanning for facts.In the writing sections, focus on crafting a clear, well-structured response that directly addresses the task. Plan your answer before you begin writing, organizing your ideas into a logical flow with a strong introduction, coherent body paragraphs, and a compelling conclusion. Proofread your work to ensure it is free from grammatical errors and accurately conveys your intended message.For questions that require short answers or fill-in-the-blankresponses, carefully read the instructions and consider the context of the question. Avoid making assumptions and ensure your answers are concise, accurate, and demonstrate a thorough understanding of the material.When faced with open-ended questions that invite a more extensive response, resist the temptation to regurgitate memorized information. Instead, thoughtfully analyze the question, draw upon your knowledge and critical thinking skills, and construct a well-reasoned, insightful answer that showcases your mastery of the subject matter.Practicing active listening during the listening comprehension section is crucial. Pay close attention to the audio, taking notes and identifying key details, rather than trying to transcribe the entire passage word-for-word. Familiarize yourself with common question formats and strategies for inferring meaning from context.For speaking tasks, such as role-plays or presentations, prepare thoroughly but avoid memorizing scripts verbatim. Focus on developing a clear, natural-sounding delivery, making eye contact with the examiner and using appropriate body language to convey confidence and engagement.Finally, throughout the exam, maintain a positive mindset and staycalm under pressure. Acknowledge any initial feelings of anxiety, but then refocus your energy on the task at hand. Believe in your abilities, trust in your preparation, and approach each question with a determined, problem-solving attitude.By employing these 10 proven methods, 9th grade students can maximize their chances of success in the English exam. Remember, the key to excelling is a combination of thorough preparation, effective examination techniques, and a confident, resilient mindset. With dedication and the right strategies, you can overcome the challenges and achieve your target score.。

中考英语十二选十答题技巧

中考英语十二选十答题技巧

中考英语十二选十答题技巧在中考英语的各个题型中,十二选十短文填空题一直是困扰很多学生的难点所在,以下就是我为大家整理出的解题思路。

解题思路:句子类型——单词类型(词性)——单词形式1. 句子类型:简单句(无连词)并列句(并列连词)复合句(从属连词)⑴ 简单句:根据简单句的句子结构确定所缺词属于句子中的哪一成分(主语、谓语、宾语、宾语补足语、定语、状语、表语等),哪些词性可以作这些成分,再根据所缺词的词义确定该词性的词。

⑵ 并列句(语法上互不依从的句子):如果是两个完整的句子中间缺词,则可以从并列句方面考虑,选择并列连词。

如:and(表顺接), so(所以,表因果),but(但是,表转折),or(否则,表转折),however(然而,表转折)⑶ 复合句:主要根据主句与从句的关系确定是哪一类复合句。

常考的复合句有:宾语从句——that, if, whether, how, what等;状语从句——时间:when, while, before, after, as soon as, until, since等;条件:if等;原因:because等;方式:how等;结果:so...that..., such...that...等;让步:although, though等;比较:as...as..., not so ...as..., ...than..., as...as possible等;定语从句——who, whom, whose, which, that2. 单词类型(词性):从习惯用法、固定搭配和词与词之间的修饰方面考虑词性。

⑴ 名词的修饰词可能是——形容词、名词、数词、代词、冠词等;动词的修饰词可能是——情态动词、助动词、副词等;形容词的修饰词可能是——副词、定冠词、序数词等。

⑵ 形容词作修饰词——主要修饰名词或代词,在句子中可作定语、表语和宾语补足语等;副词作修饰词——主要修饰形容词、动词、其他副词以及句子等。

成都中考十二选十--句型公式

成都中考十二选十--句型公式

句型公式教学目标:★★★★★☆学生能够通过快速辨认句型公式判断词形.一、通过标志词判断词形★★☆☆☆☆1.冠词、名词类art。

+____n。

____此结构的特点是冠词后少空,而后又没有名词,那么所填空常为名词.a book an hour the policemenThis is a book。

I need an hour。

1。

However,one of the ____near my house seems to use more of these bags than eve before。

(shop)。

+____adj。

____ + n.此结构的特点是冠词后少空,后面再接一个名词,这种情况下空里常填的词语有形容词(最高级)、序数词、名词所有格。

1. the beautiful girl the first person the Teachers’ Day2. She is the first person to finish this task。

3。

What's the real meaning of the word "peace”?The _____story may tell us something about it。

(follow)4。

The ________person, on the other hand,works little and just wait to see them pass by。

1.Before the beginning of every lecture,I found an ____5____ phenomenon(现象)。

(interest)2.There was once a king who offered an award to an artist who could paint the _______ picture ofpeace. (good)____仅用一个词修饰____ + n 。

中考英语12选10解题方法及完形填空的解题技巧

中考英语12选10解题方法及完形填空的解题技巧

中考英语12选10解题方法及完形填空的解题技巧用表格中所给词的适当形式填空,使短文正确、通顺。

(每个词语限用一次)做12选10这种题的基本步骤是:先通览全文,掌握文章大意;然后再根据文章的语境特点从词语搭配、习惯用法、上下文的逻辑关系以及一般的生活常识等方面进行分析,从而选出既合语法又合语境的答案。

做完形填空题的通常方法有:1. 词语搭配法:即根据词语的搭配习惯来选择正确的答案。

同学们平时一定要注意掌握一些常用词汇的基本及其有关的搭配。

考试大2. 语法判断法:即通过语法分析来判断正确答案,比如被选项若为是名词,则应根据填空句的上下文确定该名词的单复数以及是否用所有格等;若被选项为动词,则应考虑其时态、语态、搭配以及非谓语形式等。

3. 语境分析法:即根据上下文的具体语境,利用所学过知识和平时所积累的经验,选出最符合题意的选项。

4. 对比排除法:有时对于一些难题,可试着将各个选项逐一填入空白处,然后进行综合比较,排除不适合的,选出最恰当的。

中考英语完形填空的解题技巧一、跳过空格,了解大意解题时先跳过空格,通读完形填空的短文,了解全篇的内容和要旨。

要重视首句,善于以首句的时态、语气为立足点,理清文脉,推测全文主题及大意。

二、复读短文,判断词形把握短文大意后再认真复读短文,利用上下文的语境,结合所学过的知识,先确定空格处所需词语的意义,再根据空格在句子中的位置,判断其在句中充当的成分,从而确定所填词的词性,再依据词语搭配和语法规则,判断所填的词的正确形式。

三、三读短文,验证答案在短文的每一空白处填上一个词后,将完成的短文再细读一遍,上下参照,连贯思考。

把所填的答案放入短文中进行检验,可从上、下文内容是否协调一致、顺理成章,语法结构是否正确无误等进行综合验证,凡有疑问必须重新推敲考虑。

成都09-13年英语中考十二选十(含答案)

成都09-13年英语中考十二选十(含答案)

【成都市2013】短文填空。

从下面方框中选出10个单词,并将其正确形式填写在答题卡相应题号的位置上,使短文意思正确通顺(每词限用一次)。

(共10个小题,每小题1分;计10分)somebody feel day successfully lie you pleasant discover carefullose instruction embarrassOne day, a student was talking with a professor (教授), who’s ki nd to those who waited on his ____1____.As they went along, they saw a pair of old shoes ____2____on the path (小路), which, they supposed, belonged to a poor man working in a nearby field (田地). He had neatly finished his ____3____ work.The student came to a stop, and said to the professor, “Let’s play a hoax on the man: we hide his shoes, hide ourselves and wait to see how ____4____ he would be when he finds that his shoes are ____5____”“My friend,” answered the professor, “We should never enjoy ourselves while making the poor sad. Now you are rich, why not give yourself a much greater ____6____ by helping the poor man? Put a coin into each shoe, hide ourselves and see what wil l happen to him.”The student did so, and they both places themselves behind the nearby trees.After finishing his work, the poor man came across the field to the path. Putting his foot into one of his shoes, he felt something unusual. He stopped ____7____ what it was and he found the coin.He took out the coin, surprised, and looked at it ____8____ for a while. Then he looked around, but ____9____ was there. Then he started to put on the other shoe. He got much more surprises when he found the other coin.The poor man then looked up into the sky and shouted “Thank You!” The student stood there with tears (眼泪) in his eyes. “Now,” said the pr ofessor, “aren’t you more pleased than if you had played ____10____ planned hoax?”“You’ve taught me a lesson which I will never forget,” answered the student.1. 2. 3. 4. 5.6. 7. 8. 9. 10.【成都市2012】短文填空。

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句型公式教学目标:★★★★★☆学生能够通过快速辨认句型公式判断词形。

一、通过标志词判断词形★★☆☆☆☆1.冠词、名词类art. +____n.____此结构的特点是冠词后少空,而后又没有名词,那么所填空常为名词。

a book an hour the policemenThis is a book. I need an hour.1. However, one of the ____near my house seems to use more of these bags than eve before.(shop)此结构的特点是冠词后少空,后面再接一个名词,这种情况下空里常填的词语有形容词(最高级)、序数词、名词所有格。

1. the beautiful girl the first person the Teachers’ Day2. She is the first person to finish this task.3. What's the real meaning of the word "peace"? The _____story may tell us something about it. (follow)4. The ________person, on the other hand, works little and just wait to see them pass by.1.Before the beginning of every lecture, I found an ____5____ phenomenon(现象). (interest)2.There was once a king who offered an award to an artist who could paint the _______ picture of peace. (good)____仅用一个词修饰____ + n.此结构的特点是名词前仅有一个词语修饰,此空经常的填法有形容词、形容词性物主代词、名词所有格、指示代词单数。

1.my book2. their advice3. this boy4. I want to hear their advice.5.She met this boy three years ago.拓展:如果adj.修饰复合不定代词,则必须为后置修饰。

即复合不定代词+ adj.Would you think they were laughing at something ____that one of them said? (fun)1.Although Eiffel designed the tower for people to visit, it was also for _________use. (science2.You might think of 11, or some _____characters like “二” or “十”!2.系动词类。

系动词+ adj.中考12选10中常考的系动词包括look, feel, get, be这四类,系动词+adj.是常考考法。

1. look tired get excited2. I feel relaxed when I’m with my family.3. This did not look ______ at all. (peace)4. After we had travelled for about twenty miles, there was still no sign of the town which was marked on the map, we were beginning to get ________. (worry)5. He decided not go home at once, if he looked _____, his other would notice.“L et’s play a hoax on the man, we hide his shoes, hide ourselves and wait to see how embarrassed he would be when finds that his shoes are_____.be动词后常跟adj.,但也存在be+ n./ pron./ adv. 做表语的情况;“I told him Spiderman is _____ to save him. No one will hurt him now,” Mr. Smith said. (here) 3. 介词此结构的特点是介词后填空,基本结构为prep. + _____n./ pron./v-ing____12选10常考介词有of, in, with, like等。

1. She is fond of swimming.2. Mike does well in math.3. She included her Chinese address in the letter in the hope of_____ a reply. (receive)4. After _________a conversation between the boy’s mother and his teachers about his love of superheroes, Mr. Smithhurried home to get his Spiderman clothes. (hear)拓展:在n./ pron.+ of n./ pron.即介词of前是名或代词,of后也应该填名词或者代词1.You are all looking at each other's tea cups and ________of you even envy (羡慕) the finer(比较级) cups of others.(any)二、通过结构判断词形★★☆☆☆☆1. 句子prep.或to do + n.或名词短语/ pron.此句式的特点是:一个句子之后有一个空,空后跟有人称代词宾格或名词(短语),则空格处应填一个介词或不定式。

1. The old man told the children that he would give them 25 cents each week ______them play football in the street at night. (see)2. Her victory(胜利) came ______years of trail following the 2010 Games.1. If you want to stand out among people, there are no other choices ______hard work.2. Many countries have made rules ______pollution.2. 句子to do +介词短语此句式特点是:一个句子之后有一个空,空后跟着介词短语,则空格处只能填入不定式,此句式,填入动词受空后介词的约束。

You don’t have to travel far______with a dolphin. Dolphin swims are now possible in tourist areas and in cites.3. 句子反身代词或反身代词句子此结构成立的条件是:1)句子主干成分完整;2)空格前紧挨着pron. /n., 则空格处填入反身代词表强调;If you really want to play for the scholarship of a good college,nothing but you ______can stop your dream. (you)1. After reading the story, we can understand that when we receive a chocolate as a gift from achild, we get more than the chocolate . (it)2. Then they start off on the journey. The weather was hot but the plan went well with the traveler riding on the donkey and the owner ______following behind. (him)3. It's interesting that Eiffel ______lived in the tower where he had his own apartment.4. . it is + adj./ n. +(for sb) to do sth此句型特点是:it is后面跟adj.或n.或名词短语,中间的for somebody可省略,则空格处填入不定式。

Is it necessary ______so many bags? (use)1. If each of the questions in a math test had more than one answer, it would be quite a problem for teachers______.(check)2. I would like to have friends who are like me. It is necessary ______the same. All my friends are funny and outgoing. (be)5. ______and ______此句式的特点是:空格出现在and的左边或右边,则and左或右填的词,词性和词形要保持一致。

1. We should remind ourselves and teach our children about the beauty of feelings and ______of gratitude. (feel)2. He sadly walked away and _____ how to tell his mother about it. (think)1. One day, we had supper early. We were sitting round the fire, eating and ______, when a manwalked past and went down towards the river.6. 句子,v.-ing + adv/ n./ pron. / 介词短语或v.-ing + adv/ n./ pron./ 介词短语,句子此句式的特点是:一个句子之后,跟着一个逗号,逗号之后有一个空格,空格后跟着adv/ n./ pron. / 介词短语,则该空填入V.-ing形式;反之,若空格+ adv/ n./ pron./ 介词短语+逗号+句子,则空格处填入V.-ing形式。

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