【正文】 劃的問題，在求解的過程中，首先需要正確畫出約束條件對(duì)應(yīng)的可行域，之后根據(jù)目標(biāo)函數(shù)的形式，判斷z的幾何意義，之后畫出一條直線，上下平移，判斷哪個(gè)點(diǎn)是最優(yōu)解，從而聯(lián)立方程組，求得最優(yōu)解的坐標(biāo)，代入求值，要明確目標(biāo)函數(shù)的形式大體上有三種：斜率型、截距型、距離型；根據(jù)不同的形式，則________． 【答案】 【解析】 【分析】 首先將圓的一般方程轉(zhuǎn)化為標(biāo)準(zhǔn)方程，得到圓心坐標(biāo)和圓的半徑的大小，之后應(yīng)用點(diǎn)到直線的距離求得弦心距，借助于圓中特殊三角形半弦長(zhǎng)、弦心距和圓的半徑構(gòu)成直角三角形，利用勾股定理求得弦長(zhǎng).【詳解】根據(jù)題意，圓的方程可化為，所以圓的圓心為，且半徑是，根據(jù)點(diǎn)到直線的距離公式可以求得，結(jié)合圓中的特殊三角形，可知，故答案為.【點(diǎn)睛】該題考查的是有關(guān)直線被圓截得的弦長(zhǎng)問題，在解題的過程中，熟練應(yīng)用圓中的特殊三角形半弦長(zhǎng)、弦心距和圓的半徑構(gòu)成的直角三角形，.△的內(nèi)角的對(duì)邊分別為，已知，則△的面積為________． 【答案】.【解析】 【分析】 首先利用正弦定理將題中的式子化為，化簡(jiǎn)求得，利用余弦定理，結(jié)合題中的條件，可以得到，可以斷定為銳角，從而求得，進(jìn)一步求得，利用三角形面積公式求得結(jié)果.【詳解】因?yàn)?，結(jié)合正弦定理可得，可得，因?yàn)?，結(jié)合余弦定理，可得，所以為銳角，且，從而求得，所以的面積為，故答案是.【點(diǎn)睛】本題主要考查余弦定理及正弦定理的應(yīng)用，：（1）；（2），在解與三角形、三角函數(shù)有關(guān)的問題時(shí)，還需要記住、等特殊角的三角函數(shù)值，、解答題：共70分。如果多做，則按所做的第一題計(jì)分。答案：B，限制私有大土地的發(fā)展，宋代一改此法，“不抑兼并”。答案：D 建議：開好選修課，擴(kuò)大知識(shí)面。答案：D：“古有儒、釋、道三教，自明以來，又多一教，曰小說??士大夫、農(nóng)、工、商賈，無(wú)不習(xí)聞之，以至兒童、婦女不識(shí)字者，亦皆聞而如見之，是其教較之儒、釋、道而更廣也。能力：常識(shí)。，湖北省政府曾發(fā)布《湖北省減租實(shí)施辦法》，在農(nóng)村推行以“減租”為內(nèi)容的土地改革并取得一定成效，但未得到國(guó)民黨中央的肯定。本題分析：“全國(guó)各高?！遍_設(shè)政治課、文化部舉辦馬列講座，旨在對(duì)“全社會(huì)”進(jìn)行政治教育，排除B。解題關(guān)鍵：辯護(hù)人打動(dòng)陪審團(tuán)，說明辯護(hù)人得到了多數(shù)票支持。當(dāng)這封信出臺(tái)時(shí)，美國(guó)尚不是聯(lián)邦制，美國(guó)憲法是當(dāng)年9月份通過的（考查的知識(shí)點(diǎn)太細(xì)了），排除A；“三權(quán)分立”也不是“現(xiàn)行體制”（注意時(shí)間），排除B；君主立憲制與美國(guó)無(wú)關(guān)，美國(guó)獨(dú)立時(shí)已于英國(guó)脫離“母子”關(guān)系，排除C。請(qǐng)不要聯(lián)系此時(shí)本地哦！呵呵～）答案：A，斯大林說：“我們比先進(jìn)國(guó)家落后了50—100年，我們應(yīng)當(dāng)在10年內(nèi)跑完這段距離。荷蘭、捷克斯洛伐克、奧地利、美國(guó)、英國(guó)、法國(guó)、日本等國(guó)先后邀請(qǐng)他前往講學(xué)。梁?jiǎn)⒊巴鶜W洲考察一年多，1920年回國(guó)后寫道：“一百年物質(zhì)的進(jìn)步，比從前三千年所得還加幾倍。（17分）【解析】考點(diǎn)：西學(xué)東漸。根據(jù)本人多次參與高招閱卷的經(jīng)驗(yàn)，本題會(huì)據(jù)此“采點(diǎn)賦分”。解題關(guān)鍵：由建筑轉(zhuǎn)移到清朝君主專制制度與英國(guó)君主立憲制度對(duì)比。請(qǐng)從下面所給的44448四道歷史題中任選一題作答，并用2B鉛筆在答題卡上將所選題目對(duì)應(yīng)的題號(hào)方框涂黑，按所涂題號(hào)進(jìn)行評(píng)分；不涂、多涂均按所答第一題評(píng)分；多答按所答第一題評(píng)分。分夏秋兩季征收，“不居處而行商者，在所郡縣稅三十之一”。（6分）（2）簡(jiǎn)化了稅制，擴(kuò)大了納稅面；朝廷收入增加；促進(jìn)商品經(jīng)濟(jì)發(fā)展；從以人丁為主到以財(cái)產(chǎn)為主，稅賦負(fù)擔(dān)相對(duì)公平。（5分）【解析】考點(diǎn)：戊戌變法?！幾院吻谌A《紐倫堡審判》（1）根據(jù)材料并結(jié)合所學(xué)知識(shí)，指出第一次世界大戰(zhàn)后和第二次世界大戰(zhàn)后懲處的戰(zhàn)爭(zhēng)責(zé)任對(duì)象有何不同。北宋神宗時(shí)，王安石“變風(fēng)俗，立 7法度”，主導(dǎo)了政治、經(jīng)濟(jì)、文化等方面的改革。（9分）【解析】考點(diǎn)：王安石變法。考試用時(shí)120分鐘。則sinB=___________，c=___________．【答案】(1).(2).3【解析】分析:根據(jù)正弦定理得sinB,：由正弦定理得,所以由余弦定理得（負(fù)值舍去）.點(diǎn)睛：解三角形問題，多為邊和角的求值問題，這就需要根據(jù)正、余弦定理結(jié)合已知條件靈活轉(zhuǎn)化為邊和角之間的關(guān)系，．【答案】7【解析】分析:先根據(jù)二項(xiàng)式展開式的通項(xiàng)公式寫出第r+1項(xiàng)，再根據(jù)項(xiàng)的次數(shù)為零解得r，：二項(xiàng)式的展開式的通項(xiàng)公式為,令得，故所求的常數(shù)項(xiàng)為點(diǎn)睛：求二項(xiàng)展開式有關(guān)問題的常見類型及解題策略：(1)，再由特定項(xiàng)的特點(diǎn)求出值即可.(2)已知展開式的某項(xiàng)，再由通項(xiàng)寫出第項(xiàng)，由特定項(xiàng)得出值，∈R，函數(shù)f(x)=，當(dāng)λ=2時(shí)，不等式f(x)【答案】(1).(1,4)(2).【解析】分析:根據(jù)分段函數(shù)，轉(zhuǎn)化為兩個(gè)不等式組，分別求解，再對(duì)應(yīng)確定二次函數(shù)零點(diǎn)的取法，：由題意得或，所以或，即，不等式f(x)當(dāng)時(shí)，此時(shí)，即在上有兩個(gè)零點(diǎn)；當(dāng)時(shí)，：已知函數(shù)有零點(diǎn)求參數(shù)取值范圍常用的方法和思路：(1)直接法：直接根據(jù)題設(shè)條件構(gòu)建關(guān)于參數(shù)的不等式，再通過解不等式確定參數(shù)范圍；(2)分離參數(shù)法：先將參數(shù)分離，轉(zhuǎn)化成求函數(shù)值域問題加以解決；(3)數(shù)形結(jié)合法：先對(duì)解析式變形，在同一平面直角坐標(biāo)系中，畫出函數(shù)的圖象，然后數(shù)形結(jié)合求解．，3，5，7，9中任取2個(gè)數(shù)字，從0，2，4，6中任取2個(gè)數(shù)字，一共可以組成___________個(gè)沒有重復(fù)數(shù)字的四位數(shù).(用數(shù)字作答)【答案】1260.【解析】分析:按是否取零分類討論，若取零，則先排首位，：若不取零，則排列數(shù)為若取零，則排列數(shù)為：求解排列、組合問題常用的解題方法：(1)元素相鄰的排列問題——“捆邦法”；(2)元素相間的排列問題——“插空法”；(3)元素有順序限制的排列問題——“除序法”；(4)帶有“含”與“不含”“至多”“至少”的排列組合問題——(0，1)，橢圓+y2=m(m1)上兩點(diǎn)A，B滿足=2，則當(dāng)m=___________時(shí)，點(diǎn)B橫坐標(biāo)的絕對(duì)值最大．【答案】5【解析】分析:先根據(jù)條件得到A,B坐標(biāo)間的關(guān)系，代入橢圓方程解得B的縱坐標(biāo)，即得B的橫坐標(biāo)關(guān)于m的函數(shù)關(guān)系，：設(shè)，由得因?yàn)锳,B在橢圓上,所以，與對(duì)應(yīng)相減得，：解析幾何中的最值是高考的熱點(diǎn)，在圓錐曲線的綜合問題中經(jīng)常出現(xiàn)，求解此類問題的一般思路為在深刻認(rèn)識(shí)運(yùn)動(dòng)變化的過程之中，抓住函數(shù)關(guān)系，將目標(biāo)量表示為一個(gè)(或者多個(gè))變量的函數(shù)，、解答題：本大題共5小題，共74分。第一部分閱讀理解（共兩節(jié)，滿分40分）第一節(jié)(共15小題；每小題2分，滿分40分)閱讀下列列短文，從每題所給的四個(gè)選項(xiàng)(A、B、C和D)中,選出最佳選項(xiàng)。today in 1995 there are about 6, lights, motors, and building designs have helped save a lot of energy and therefore prevented –five years ago, there were hardly any education programs for , it’s hard to find a public school, university, or law school that does not have such a kind of program.” Until we do that, nothing else will change!” say Bruce to Anderson, before 1970, Americans had little idea about ___ social techniques problems importance of Earth Day does the support for environmental protection mainly e from? grass –roots business officials professors have Americans achieved in environmental protection? have cut car emissions to the lowest have settled their environmental have lowered their CO levels in forty have reduced pollution through effective is especially important for environmental protection according to the last paragraph? reductionCOne of the latest trend（趨勢(shì)）in American Childcare is Chinese au Pair in Stamford, for example, has got increasing numbers of request for Chinese au pairs from aero to around 4,000 since that’s true all across the country.“I thought it would be useful for him to learn Chinese at an early age” Joseph Stock, the managing director of a pany, says of his 2year old son.“I would at least like togive him the chance to use the language in the future,” After only six months of being cared by 25yearold woman from China, the boy can already understand basic Chinese daily expressions, his dad Drake, a Chinese native raising two children in Minnesota with an American husband, had another reason for looking for an au pair from didn’t want her children to miss out on their roots.” Because I am Chinese, my husband and I wanted the children to keep exposed to(接觸)the language and culture.” she says.“Staying with a native speaker is better for children than simply sitting in a classroom,” says Suzanne Flynn, a professor in language education of Children.” But parents must understand that just one year with au pair is unlikely to produce mastery demands continued learning until the age of 10 or 12.”The popularity of au pairs from china has been strengthened by the increasing numbers of American parents who want their children who want their children to learn is expected that American demand for au pairs will continue to rise in the next few does that term” au pair” in the text mean? mother raising her children on her child learning a foreign language at professor in language education of children young foreign woman taking care of Drake has her children study Chinese because she wants them live in China some speak the language at catch up wit other children learn about the Chinese culture can we infer from the text? Chinese is being popular In America, woman do better in looking after au pairs need to improve their English can learn a foreign language well in six Metro Pocket Guide 地鐵)Each passenger needs a farecard to enter and go to two children under age five may with a paying machines are in every small bills because there are no change machines in the stations and farecard machines only provide up to $5 in one ticket of unlimited Metro rail rides with a One D