2018年江苏省对口单招英语模拟试卷及答案

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江苏省职业学校对口单招联盟一模考试试卷和答案

江苏省职业学校对口单招联盟一模考试试卷和答案

2018年江苏省职业学校对口单招联盟一模考试试卷和答案绝密★启封前秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷一、单项选择题(本大题共10小题,每小题4分,共40分。

在下列每小题中,选出一个正确答案,将答题卡上对应选项的方框涂满、涂黑) 1.如果全集}6,5,4,3,2,1{=U ,集合}5,3,1{=A ,集合}4,1{=B ,那么B CA U=( ▲ )A .}5,3{B .}6,4,2{C .}6,4,2,1{D .}6,5,3,2,1{ 2.若复数i1i -=z ,则=|z |( ▲ )A .2B .2C .21D .223.已知某项工程的网络图如下(单位:天),若要求工期缩短2天,则下列方案可行的是 ( ▲)A .B 、D 各缩短1天 B .E 、F 各缩短1天C .E 、G 各缩短1天D .A 、D 各缩短1天4.若在区间]2,2[ππ-上随机取一个数x ,则x cos 的值介于0到21之间的概率为( ▲ ) A .31 B .π2 C .21D .32 5.若135sin )cos(cos )sin(=---αβααβα,β是第四象限角,则A .135B .135-C .1312 D .1312- 6.已知函数⎪⎩⎪⎨⎧>+≤-=),0(12),0(1)(x x x x f x若5)(=x f ,则x 的值为( ▲ )A .2B .6-C .2或6-D .无法确定7.若圆锥的轴截面为等边三角形,则它的底面积与侧面积之比为 ( ▲ ) A .1:1 B .1:2 C .2:1D .1:38.已知命题p :若,022=+y x 则x 、y 全为0;命题q :若a b >,则22bc ac>,给出下列四个复合命题:①p且q ,②p 或q ,③p ⌝,④q ⌝,其中真命题的个数为 ( ▲ ) A .1 B .2 C . 3D .4 9.已知圆)0(0222>=-+a ax y xM :截直线0=+y x 所得线段的长度是22,则圆M 与圆⎩⎨⎧=+=,sin ,cos 1θθy x N :的位置关系是( ▲ )A .相交B .内切C .外切D .相离 10.已知正数a ,b 满足591-=+ab ba ,则ab的最小值为( ▲ )A.36B.16C.6D.4二、填空题(本大题共5小题,每小题4分,共20分)11.运行如图所示的程序框图,输出K 的值为 ▲ .12.某中专学校一年级有学生400人,若用饼图来表示各年级学生人数的构成,则一年级学生人数所占饼图的圆心角为100 ,则全校共有学生 ▲ 人. 13.若点)sin ,(cos αα在双曲线25722=-y x上,且20πα<<,则ααcos sin +的值为 ▲ .14. 已知f(x)是定义在R 上的奇函数,当0x ≥时,2()log (2)(1)f x x a x b =++-+(,a b 为常数),若(2)1f =-,则(6)f -=____▲____. 15.若关于x 的方程12+=-kx x m )(R k ∈恒有解,则实数m 的取值范围是 ▲ .三、解答题(本大题共8小题,共90分) 16.(8分)设不等式212422≤-+x x 的解集为M ,若M 为函数1)(2-=x x f 的定义域,求函数)(x f 的值域.17.(10分)已知偶函数1)3()(2+-+=x b ax x f (,a b 为常数),0)1(=-f .(1)求函数)(x f 的表达式;(2)当]2,2[-∈x 时,kx x f x g -=)()(是单调函数,求实数k 的取值范围.18. (12分)已知函数)(cos 2sin 23)(2R x x x x f ∈+=.(1)当]4,4[ππ-∈x 时,求函数)(x f 的最小值及取最小值时x 的值;(2)设ABC ∆的内角C B A ,,所对的边分别为c b a ,,,且3=c ,1)(=C f ,若)sin ,1(A m =→与)sin ,2(B n =→共线,求a 的值.19. (12分)甲、乙两校各有3名教师报名支教,其中甲校2男1女(依次记为A ,B ,C ),乙校3男(依次记为D ,E ,F ).(1)若从甲校和乙校报名的教师中各任取1名参与支教,①写出所有可能的结果;②求选出的2名教师性别相同的概率; (2)若从报名的6名教师中任选2名参与支教,求两名教师来自不同学校的概率.20.(10分)将两种不同的钢板截成A 、B 、C 三种规格的小钢板,每张钢板可同时截得三种规格的小钢板的块数如下表所示:今需要A 、B 、C 三种规格的成品分别为12、46、66块,问:截这两种钢板各多少张可得所需三种规格的成品,使所用钢板张数最少.21.(12分)已知等比数列}{na 的各项均为正数,且24,4432=+=a a a.(1)求数列}{na 的通项公式; (2)若数列}{nb 满足6,321==bb ,且}{n na b-是等差数列,求数列}{nb 的前n 项和;(3)已知数列}{nc 满足nna n c2log )1(1+=,若数列}{nc 的前k 项和为1110,求k 的值.22.(12分)某公司将一款品牌童装投放到某地区销售,其制作成本为60元/件.根据市场调查,在一段时间内,销售单价为80元/件时,销量为200千件,而销售单价每降低1元就可多售出20千件,物价部门规定销售单价不得高于80元/件.(1)写出销量y (千件)与销售单价x (元)之间的函数关系式并写出定义域;(2)销售单价x (元)为多少时,销售该童装所获得的利润W (千元)最大?并求最大值.23.(14分)已知椭圆:)0(12222>>=+b a b y a x 的两个焦点是21,F F ,点)22,2(P 在椭圆上,且421=+PFPF .(1)求椭圆的方程;(2)若圆M 经过椭圆的左右顶点及上顶点,求圆M 的方程;(3)设倾斜角为锐角的直线l 与椭圆交于B A ,两点,且A 点的坐标为)0,(a -,若524=AB ,点C 为(2)中圆M 上的动点,求ABC ∆面积的最大值.绝密★启封前 秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷答案及评分参考一、单项选择题(本大题共10小题,每小题4分,共40分.)1.A 2.D 3.B 4.A 5.C 6.C 7.B 8.B 9.B 10.A二、填空题(本大题共5小题,每小题4分,共20分)11.99 12.1440 13.57 14. 4 15. 1≥m三、解答题(本大题共8小题,共90分) 16.解:(1)由题意可得:142222--+≤x x…………………………………………………1分则 1422-≤-+x x解得13-≤≤x ………………………………………………3分 所以定义域为]1,3[- ………………………………………………4分(2))13(1)(2≤≤--=x x x f 对称轴为0=x所以8)3()(max =-=f x f …………………………………………5分1)0()(min -==f x f …………………………………………7分所以,)(x f 的值域为[]8,1- …………………………………………8分17.解:(1)因为函数)(x f 为偶函数,∴30b -=, …………………………………2分又(1)0,f -=所以21,()1a f x x =-=-+…………………………………………5分(2)2()()1g x f x kx x kx =-=--+ 函数的对称轴是2k x =-…………………………………………7分当22k -≤-或22k-≥ 即4k ≥或4k ≤-时,)(x g 是单调函数. …………………………………………10分 18.解:(1)x x x f 2cos 2sin 23)(+==22cos 12sin 23xx ++21)62sin(212cos 212sin 23++=++=πx x x …………2分因为x ⎥⎦⎤⎢⎣⎡-∈4,4ππ,所以]32,3[62πππ-∈+x所以当3-62ππ=+x ,即4π-=x 时,……………………………4分231取最小值为)(-x f .……………………………6分(2)因为1)(=C f ,所以121)62sin(=++πC所以21)62sin(=+πC因为),0(π∈C ,所以6562ππ=+C ,所以3π=C ……………………………8分因为m∥n,所以AB sin 2sin =,所以ab 2=……………………………10分又由Cab b a c cos 2222-+=得 21443222⨯-+=a a a,解得1=a .……………………………12分19.解:(1)①两校各取1名教师的所有可能的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ),(B ,F ),(C ,D ),(C ,E ),(C ,F )共9种……………………………4分②选出的2名教师性别相同的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ), (B ,F )共6种,所以选出的两名教师性别相同的概率P=3296=;………………8分(2)从两校报名的教师中任选2名的所有可能是1526=C(种)2名教师来自不同学校的结果是91313=⋅C C(种)所以,2名教师来自不同学校的概率为53159=. ………………12分20.解:设需截取第一种钢板x 张,第二种钢板y 张,所用钢板总数为z 张,则 目标函数min z x y=+ ……………………………1分212354649660,0x y x y x y x y +≥⎧⎪+≥⎪⎨+≥⎪⎪≥≥⎩ ……………………………5分如图,可行域是阴影部分,平移直线0x y +=,由图可知目标函数在A 点取到最优解解方程组⎩⎨⎧=+=+4653122y x y x 得)8,2(A (9)分所以当截取第一种钢板2张,第二种钢板8张,可以满足要求,且使用钢板张数最少,为10张. ……………………………10分 21.解:(1)解:设等比数列的公比为,依题意.因为两式相除得 :,解得,(舍去).所以.所以数列的通项公式为.……………………………4分 (2)解:由已知可得,,因为为等差数列,所以数列是首项为,公差为的等差数列.所以 .则.因此数列的前项和:. ……………………………8分(3)因为111)1(1log )1(12+-=+=+=n n n n a n c n n所以}{n c 的前k 项的和为11101111113121211=+-=+-++-+-k k k所以10=k . …………………………12分22.解:(1)据题意得:y=200+20(80-x)=-20x+1800(60x80) ……………………4分(2)w=(x-60)( -20x+1800)=-20x 2+3000x-108000(60x80) …………………8分对称轴为x=75∈[60,80] 所以当x=75时,w 取最大值4500.答:当销售单价为75元时,公司在该地区获得的利润最大,最大利润是4500千元.………………………12分 23.解:(1)据题意得⎪⎪⎩⎪⎪⎨⎧=+=12124222b a a 解得a 2=4,b 2=1,∴椭圆方程为1422=+y x……………………………4分 (2)由(1)可知椭圆的左右顶点和上顶点分别为(-2,0),(2,0),(0,1)∵圆M 过这三点,∴设圆M 的方程为x 2+y 2+Dx+Ey+F=0分别将三点的坐标代入方程得⎪⎩⎪⎨⎧=++=++=+-01024024F E F D F D 解得,D=0,E=3,F=-4 ∴圆M的方程为x 2+y 2+3y-4=0 ……………………8分(3)点A 为(-a ,0)即为(-2,0)∵直线l 过点A 且与椭圆有两个交点,∴直线l 的斜率一定存在∴设直线l 的方程为y=k (x+2)将直线方程与椭圆方程联立方程组得⎩⎨⎧=++=44)2(22y x x k y 化简得(1+4k 2)x 2+16k 2x+16k 2-4=0∴2221222141416,4116k k x x k k x x +-=+-=+∴52441414)(1||22212212=+⨯+=-++=k k x x x x k AB解得k=±1,且此时∆>0 ∵直线l 的倾斜角为锐角,∴k=1∴直线l 的方程为y=x+2即直线的方程为x-y+2=0 ………………………11分∵524=AB 为定值,∴要使ABC ∆的面积最大即要使点C 到直线AB 的距离最大 圆M 的圆心M 到直线的距离4272|223|=+=d∴点C 到直线AB 的距离的最大值为25427+=+r d∴ABC∆的面积的最大值为5257+.……………………………14分。

盐城市2018年普通高校对口单招高三年级第一次调研考试英语试卷含答案

盐城市2018年普通高校对口单招高三年级第一次调研考试英语试卷含答案

盐城市2018年普通⾼校对⼝单招⾼三年级第⼀次调研考试英语试卷含答案盐城市2018年普通⾼校对⼝单招⾼三年级第⼀次调研考试英语试卷总分:100分时间:120分钟第⼀部分:语⾔知识运⽤(共40⼩题,每⼩题1分,共40分)第⼀节在本节中,你将读到10个句⼦,从题后所给的A、B、C、D四个选项中选出可以填⼊空⽩处的最佳选项,并将答题卡上对应的⽅框涂满、涂⿊。

1. Many a student ▲selected to take part in the English competition, and more than one teacher ▲them on speaking and writing.A. was; has coachedB. were; have coachedC. was; have coachedD. were; has coached2. ▲it is a good time I did not get the job I had applied for, though I must admit that I was disappointed at that time.A. By the wayB. In a wayC. In the wayD. In no way3. Some people believe ▲has happened before or is happening now will repeat itself in the future.A. whateverB. wheneverC. whereverD. however4. There’s no light on in the dormitory. They must have gone to attend the concert to be held on the campus, ▲A. didn’t theyB. mustn’t theyC. haven’t theyD. shouldn’t they5. Martin Smith who, at 22,is one of the male nannies (保姆) admits that it will be some time ▲male nannies are totally accepted.A. untilB. afterC. beforeD. since6. Only when he met the girl his aunt introduced to him ▲that he had seen her before.B. he did realizedC. realized heD. did he realized7. The groom made a speech, ____▲__ all those who had helped make the wedding ___▲___.A. thanking, a successB. to thank, successC. thanked, a successD. thanking, success8. The local government took many effective measures to meet the requirement that all the children ▲vaccinated(给…接种疫苗) before starting school.A. mustB. areC. will beD. be9. When I try to understand ▲that prevents so many children from being happy, there seem to be three causes.A. why it isB. what it doesC. why it doesD. what it is10. The little girl ____▲___ under the tree ____▲___ that she had ____▲___ all the books where they were.A. laying; lay; laidB. lying; lied; laidC. lying; lied; lainD. laying; lay; lain第⼆节在本节中,你将读到15个短对话或⽚段,从题后所给的A、B、C、D四个选项中选出可以填⼊空⽩处的最佳选项,并将答题卡上对应选项的⽅框涂满、涂⿊。

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

2018年江苏省职业学校对口单招联盟一模考试试卷和答案绝密★启封前秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷一、单项选择题(本大题共10小题,每小题4分,共40分。

在下列每小题中,选出一个正确答案,将答题卡上对应选项的方框涂满、涂黑)1.如果全集}6,5,4,3,2,1{=U ,集合}5,3,1{=A ,集合}4,1{=B ,那么B C A U =(▲ ) A .}5,3{ B .}6,4,2{C .}6,4,2,1{D .}6,5,3,2,1{2.若复数i1i-=z ,则=|z | (▲ ) A .2 B.2 C .21 D .22 3.已知某项工程的网络图如下(单位:天),若要求工期缩短2天,则下列方案可行的是( ▲)A .B 、D 各缩短1天 B .E 、F 各缩短1天C .E 、G 各缩短1天D .A 、D 各缩短1天4.若在区间]2,2[ππ-上随机取一个数x ,则x cos 的值介于0到21之间的概率为(▲ )A .31 B .π2 C .21 D .325.若135sin )cos(cos )sin(=---αβααβα,β是第四象限角,则=-)cos(β(▲ )A .135 B .135- C .1312 D .1312-6.已知函数>+≤-=),0(12),0(1)(x x x x f x 若5)(=x f ,则x 的值为(▲ )A .2B .6-C .2或6-D .无法确定7.若圆锥的轴截面为等边三角形,则它的底面积与侧面积之比为(▲ ) A .1:1 B .1:2 C .2:1 D .1:38.已知命题p :若,022=+y x 则x 、y 全为0;命题q :若a b >,则22bc ac >,给出下列四个复合命题:①p 且q ,②p 或q ,③p ?,④q ?,其中真命题的个数为(▲ ) A .1B .2C . 3D .49.已知圆)0(0222>=-+a ax y x M :截直线0=+y x 所得线段的长度是22,则圆M 与圆??=+=,sin ,cos 1θθy x N :的位置关系是( ▲ )A .相交B .内切C .外切D .相离 10.已知正数a ,b 满足591-=+ab ba ,则ab 的最小值为(▲ ) A.36 B.16 C.6 D.4二、填空题(本大题共5小题,每小题4分,共20分)11.运行如图所示的程序框图,输出K 的值为▲ .12.某中专学校一年级有学生400人,若用饼图来表示各年级学生人数的构成,则一年级学生人数所占饼图的圆心角为100 ,则全校共有学生▲ 人.13.若点)sin ,(cos αα在双曲线25722=-y x 上,且20πα<<,则ααcos sin +的值为▲ .14. 已知f(x)是定义在R 上的奇函数,当0x ≥时,2()log (2)(1)f x x a x b =++-+ (,a b 为常数),若(2)1f =-,则(6)f -=____▲____.15.若关于x 的方程12+=-kx x m )(R k ∈恒有解,则实数m 的取值范围是▲ .三、解答题(本大题共8小题,共90分)16.(8分)设不等式212422≤-+x x 的解集为M ,若M 为函数1)(2-=x x f 的定义域,求函数)(x f 的值域.17.(10分)已知偶函数1)3()(2+-+=x b ax x f (,a b 为常数),0)1(=-f . (1)求函数)(x f 的表达式;(2)当]2,2[-∈x 时,kx x f x g -=)()(是单调函数,求实数k 的取值范围.18. (12分)已知函数)(cos 2sin 23)(2R x x x x f ∈+=. (1)当]4,4[ππ-∈x 时,求函数)(x f 的最小值及取最小值时x 的值;(2)设ABC ?的内角C B A ,,所对的边分别为c b a ,,,且3=c ,1)(=C f ,若)sin ,1(A m =→与)sin ,2(B n =→共线,求a 的值.19. (12分)甲、乙两校各有3名教师报名支教,其中甲校2男1女(依次记为A ,B ,C ),乙校3男(依次记为D ,E ,F ).(1)若从甲校和乙校报名的教师中各任取1名参与支教,①写出所有可能的结果;②求选出的2名教师性别相同的概率;(2)若从报名的6名教师中任选2名参与支教,求两名教师来自不同学校的概率.20.(10分)将两种不同的钢板截成A 、B 、C 三种规格的小钢板,每张钢板可同时截得三种今需要A 、B 、C 三种规格的成品分别为12、46、66块,问:截这两种钢板各多少张可得所需三种规格的成品,使所用钢板张数最少.21.(12分)已知等比数列}{n a 的各项均为正数,且24,4432=+=a a a .(1)求数列}{n a 的通项公式;(2)若数列}{n b 满足6,321==b b ,且}{n n a b -是等差数列,求数列}{n b 的前n 项和;(3)已知数列}{n c 满足nn a n c 2log )1(1+=,若数列}{n c 的前k 项和为1110,求k 的值.22.(12分)某公司将一款品牌童装投放到某地区销售,其制作成本为60元/件.根据市场调查,在一段时间内,销售单价为80元/件时,销量为200千件,而销售单价每降低1元就可多售出20千件,物价部门规定销售单价不得高于80元/件.(1)写出销量y (千件)与销售单价x (元)之间的函数关系式并写出定义域;(2)销售单价x (元)为多少时,销售该童装所获得的利润W (千元)最大?并求最大值.23.(14分)已知椭圆:)0(12222>>=+b a b y a x 的两个焦点是21,F F ,点)22,2(P 在椭圆上,且421=+PF PF .(1)求椭圆的方程;(2)若圆M 经过椭圆的左右顶点及上顶点,求圆M 的方程;(3)设倾斜角为锐角的直线l 与椭圆交于B A ,两点,且A 点的坐标为)0,(a -,若524=AB ,点C 为(2)中圆M 上的动点,求ABC ?面积的最大值.绝密★启封前秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷答案及评分参考一、单项选择题(本大题共10小题,每小题4分,共40分.)1.A 2.D 3.B 4.A 5.C 6.C 7.B 8.B 9.B 10.A 二、填空题(本大题共5小题,每小题4分,共20分) 11.99 12.1440 13.5714. 4 15.1≥m 三、解答题(本大题共8小题,共90分) 16.解:(1)由题意可得:142222--+≤x x …………………………………………………1分则 1422-≤-+x x解得13-≤≤x ………………………………………………3分所以定义域为]1,3[- ………………………………………………4分(2))13(1)(2≤≤--= x x x f 对称轴为0=x所以8)3()(max =-=f x f …………………………………………5分1)0()(min -==f x f …………………………………………7分所以,)(x f 的值域为[]8,1- …………………………………………8分 17.解:(1)因为函数)(x f 为偶函数,∴30b -=,…………………………………2分又(1)0,f -=所以21,()1a f x x =-=-+…………………………………………5分(2)2()()1g x f x kx x kx =-=--+ 函数的对称轴是 2kx =- …………………………………………7分当22k -≤-或22k-≥ 即4k ≥或4k ≤-时,)(x g 是单调函数. …………………………………………10分 18.解:(1)x x x f 2cos 2sin 23)(+=2cos 12sin 23xx ++21)62sin(212cos 212sin 23++=++=πx x x …………2分因为x ??-∈4,4ππ,所以]32,3[62πππ-∈+x 所以当3-62ππ=+x ,即4π-=x 时,……………………………4分231取最小值为)(-x f .……………………………6分(2)因为1)(=C f ,所以12 1)62sin(=++πC 所以21)62sin(=+C 因为),0(π∈C ,所以6562ππ=+C ,所以3π=C ……………………………8分因为m ∥n ,所以A B sin 2sin =,所以a b 2=……………………………10分又由C ab b a c cos 2222-+=得 21443222?-+=a a a ,解得1=a .……………………………12分 19.解:(1)①两校各取1名教师的所有可能的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ),(B ,F ),(C ,D ),(C ,E ),(C ,F )共9种……………………………4分②选出的2名教师性别相同的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ),(B ,F )共6种,所以选出的两名教师性别相同的概率P=3296=;………………8分(2)从两校报名的教师中任选2名的所有可能是1526=C (种)2名教师来自不同学校的结果是91313=?C C (种)所以,2名教师来自不同学校的概率为53159=.………………12分 20.解:设需截取第一种钢板x 张,第二种钢板y 张,所用钢板总数为z 张,则目标函数min z x y=+ ……………………………1分212354649660,0x y x y x y x y +≥??+≥?+≥??≥≥? ……………………………5分影部分,平移直线0x y +=,由图可知目标函数在A 点取到最优如图,可行域是阴解=+=+4653122y x y x 得)8,2(A ……………………………9分所以当截取第一种钢板2张,第二种钢板8张,可以满足要求,且使用钢板张数最少,为10张.……………………………10分 21.解:(1)解:设等比数列的公比为,依题意.因为两式相除得:,解得,(舍去).所以.所以数列的通项公式为.……………………………4分(2)解:由已知可得,,因为为等差数列,所以数列是首项为,公差为的等差数列.所以.则.因此数列的前项和:. ……………………………8分(3)因为111)1(1log )1(12+-=+=+=n n n n a n c n n所以}{n c 的前k 项的和为11101111113121211=+-=+-++-+-k k k 所以10=k .…………………………12分22.解:(1)据题意得:y=200+20(80-x)=-20x+1800 (60x 80) (4)分(2)w=(x-60)( -20x+1800)=-20x 2+3000x-108000 (60x 80) (8)分对称轴为x=75∈[60,80]所以当x=75时,w 取最大值4500.答:当销售单价为75元时,公司在该地区获得的利润最大,最大利润是4500千元.………………………12分23.解:(1)据题意得=+=12124222b a a 解得a 2=4,b 2=1,∴椭圆方程为1422=+y x ……………………………4分(2)由(1)可知椭圆的左右顶点和上顶点分别为(-2,0),(2,0),(0,1)∵圆M 过这三点,∴设圆M 的方程为x 2+y 2+Dx+Ey+F=0分别将三点的坐标代入方程得??=++=++=+-01024024F E F D F D 解得,D=0,E=3,F=-4∴圆M 的方程为x 2+y 2+3y-4=0 ……………………8分(3)点A 为(-a ,0)即为(-2,0)∵直线l 过点A 且与椭圆有两个交点,∴直线l 的斜率一定存在∴设直线l 的方程为y=k (x+2)将直线方程与椭圆方程联立方程组得=++=44)2(22y x x k y 化简得(1+4k 2)x 2+16k 2x+16k 2-4=0 ∴2221222141416,4116k k x x k k x x +-=+-=+∴52441414)(1||22212212=+?+=-++=k k x x x x k AB 解得k=±1,且此时?>0∵直线l 的倾斜角为锐角,∴k=1∴直线l 的方程为y=x+2即直线的方程为x-y+2=0 ………………………11分∵524=AB 为定值,∴要使ABC ?的面积最大即要使点C 到直线AB 的距离最大圆M 的圆心M 到直线的距离4272|223|=+=d ∴点C 到直线AB 的距离的最大值为25427+=+r d ∴ABC ?的面积的最大值为5257+.……………………………14分。

徐州市职业学校对口单招 2018届升学班第二次质量检测 高三英语

徐州市职业学校对口单招 2018届升学班第二次质量检测 高三英语

徐州市职业学校2018届升学班第二次质量检测高三英语本试卷满分100分,考试时间120分钟。

请按要求将答案写在答题纸上。

在规定以外地方答题,视作无效。

第一部分:语言知识运用(共40小题;每题1分,满分40分)第一节在本节中,你将读到10个句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑。

( )1. — How do you like _______ coffee , sir ?— Ah, it is ______ very good coffee. Is it Chinese?A. /; aB. the; aC. /; /D. a; the( )2. The boy raised his arm and talked loudly to ______ his new watch to his classmates.A. see offB. show offC. take offD. put off( )3. John plays basketball well, ________his favorite sport is volleyball.A. soB. orC. yetD. for( )4. The most _______ jobs are mostly professions, especially those _______ caring for, teaching and protecting.A. satisfying; involvedB. satisfied; containedC. satisfied; containingD. satisfying; involving( )5. In our factory there are 2000 workers, two thirds of ________ are women.A. themB. whichC. whomD. who( )6. How long do you think it will be _______ the computer company develops a new product?A. beforeB. sinceC. untilD. that( )7. It was for this reason _______he was late for the meeting this morning.A. whichB. whyC. thatD. how( )8. No sooner ______ they rushed out into the street.A. did they hear the news thanB. did they hear the news whenC. had they heard the news thanD. had they heard the news when( )9. Half of the boys, including Tom, _______ late this morning.A. areB. isC. wasD. were( )10. She insisted that she _______ really very tired and she _____ to have a rest.A. was; be allowedB. was; must be allowedC. be; be allowedD. should be; be allowed第二节在本节中,你将读到15个短对话或句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑。

江苏高职对口招生考试英语模拟试题十(含答案)

江苏高职对口招生考试英语模拟试题十(含答案)

英语试题第一部分听力(共两节,满分20分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1. What does the woman mean?A. She likes Japanese and Chinese.B. She likes Japanese better than Chinese.C. She knows nothing about Chinese or Japanese.2. Why did Bill lose his job?A. He always got to work late.B. He got angry with his boss.C. He prepared a financial report incorrectly.3. What can we learn from the conversation?A. The weather forecast says it will be fine.B. Their plan doesn’t count on the weather.C. They will not do as planned in case of rain.4. Where is the woman going to?A. A party.B. A shop.C. A school.5. What is the woman?A. A writer.B. An actress.C. An operator.第二节(共15小题;每题1.5分,满分22.5分)听下面5段对话或独白。

每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,每小题将给出5秒钟的作答时间。

江苏省2018普通高校对口单招文化统考英语试题(Word版,含答案)

江苏省2018普通高校对口单招文化统考英语试题(Word版,含答案)

江苏省2018年普通高校对口单招文化统考英语试卷第一部分:语言知识运用(共40小题,每小题1分,共40分)第一节在本节中,你将读到10个句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应选项的方框涂满、涂黑。

1. That Ann won first prize in the National Teenagers Chess Competition is great success for her.A. a; aB. the; theC. the; aD. a; the2. It's necessary for adults to put all dangerous things out of children's .A. controlB. reachC. workD. distance3. By the time I returned to my hometown, great changes .A. have taken placeB. took placeC. are taken placeD. had taken place4. you make efforts, your dream will dream will come true some day.A. Even ifB. As ifC. As long asD. Now that5. The volunteers must have broadened the road yesterday, ?A. mustn’t theyB. haven’t theyC. didn’t theyD. weren’t they6. The manager suggested that all the employees name tags in the company.A. to wearB. should wearC. must wearD. wearing7. People find it easier to the beginning and end of a telephone number than the middle.A. remindB. repeatC. recallD. replace8. Keep these rules in mind, you are sure to be successful in the job interview.A. andB. unlessC. orD. since9. Life is changeable. We don’t know what we will around the next corner..A. come outB. come acrossC. come toD. come on10. The reason he was late for the gathering is he was caught in a traffic jam.A. why; becauseB. that; whyC. that; thatD. why; that第二节在本节中,你将读到15个短对话或片段,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应选项的方框涂满、涂黑。

2018年江苏单招英语模拟题

2018年江苏单招英语模拟题
答案
C
解析
arrive是关键信息:(我在出发之前)没有预料到路会这么滑。这里谈论的显然是过去(started)的过去(had expected)
— When will you come to see me, Dad ? — I will go to see you when you _____ the training course.A、will have finishedB、will finishC、are finishingD、fini sh
答案
B
解析
2000份高职单招试题,全部免费提供!
时间状语in the past five years与现在时间有关。
育龙单招网,每年帮助3万考生单招上大学
The news came as no surprise to me. I _____ for some time that the factory was going to shut down.A、had known B、knewC、have knownD、know
My parents _____ in Hong Kong. They were born there and have never lived anywhere else.A、liveB、livedC、were l ivingD、will live
答案
A
解析
考查时态。后句意思“他们出生在香港,从来没有去过别的地方”,由此可知前句“一直在香港住”,时态用一般现在时, 说明事实,故选A。
2000份高职单招试题,全部免费提供!
育龙单招网,每年帮助3万考生单招上大学
Tom’s father had not spoken to him since his marriage, because he considered Tom ______ a mistake in marrying so young a girl.A、had madeB、madeC、would makeD、was making

江苏高职对口招生考试英语模拟试题十三(含答案)

江苏高职对口招生考试英语模拟试题十三(含答案)

英语试题第一部分:听力(共两节,满分20分)第一节(共5小题;每小题1分,满分5分)听下面5段对话。

每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。

每段对话仅读一遍。

1. What’s the possible relationship between the two speakers?A. Wife and husband.B. Secretary and boss.C. Waitress and customer.2. How will the woman get to Miami?A. By plane.B. By train.C. By car.3. When will the film probably start?A. At 7:30.B. At 7:00.C. At 6:30.4. What does the man imply about the weather tomorrow?A. Tomorrow is supposed to be warm and sunny according to the weather forecast.B. Tomorrow will be cloudy and cool according to the weather forecast.C. The man believes that tomorrow will be sunny and warm.5. Why did the woman go to America?A. To do some business.B. To visit some friends.C. To go sightseeing.第二节(共15小题;每小题1分,满分15分)听下面5段对话或独白。

每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

绝密★启封前秘密★启用后2018 年江苏省职业学校对口单招联盟一模考试数学试卷注意事项考生在答题前请认真阅读本注意事项及各题答题要求1.本试卷共4 页,包含选择题(第1 题 ~第 10 题,共 10 题)、非选择题(第 11 题 ~第 23 题,共13 题)。

本卷满分为 150 分,考试时间为 120 分钟。

考试结束后,请将本试卷和答题卡一并交回。

2.答题前,请务必将自己的姓名、考试证号用0.5 毫米黑色墨水的签字笔填写在试卷及答题卡的规定位置。

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一、单项选择题(本大题共10 小题,每小题 4 分,共40分。

在下列每小题中,选出一个正确答案,将答题卡上对应选项的方框涂满、涂黑)1. 如果全集U {1,2,3,4,5,6} ,集合 A {1,3,5} ,集合 B{ 1,4} ,那么A C U B(▲)A. { 3,5} B . { 2,4,6} C . { 1,2,4,6}D . {1,2,3,5,6}2. 若复数 z i ,则 | z|(▲)1iA. 2 B .2 C .1 D . 22 23.已知某项工程的网络图如下( 单位:天 ) ,若要求工期缩短2 天,则下列方案可行的是( ▲ )3B I G3 0 21A4E7 3CD31265J 0F7H281A.B、D各缩短 1 天 B .E、F 各缩短 1 天C.E、G各缩短 1 天 D .A、D各缩短 1 天数学一模试卷第1页共9页4. 若在区间[, ] 上随机取一个数 x ,则 cosx 的值介于 0 到1之间的概率为( ▲ )2 2 2 A . 1B . 2C . 1D. 23 235. 若 sin( ) cos cos( ) sin 5 , 是第四象限角, 则 cos( ) ( ▲ )13A . 5B . 5C .12 D . 12 13 1313136. 已知函数 f ( x) x 1( x 0),若 f ( x)5 ,则 x 的值为( ▲ )2x1(x 0),A . 2B . 6C .2或 6D .无法确定7. 若圆锥的轴截面为等边三角形,则它的底面积与侧面积之比为 ( ▲ )A . 1:1B . 1:2C .2:1D .1:38. 已知命题 p :若 x 2 y 2 0, 则 x 、 y 全为 0 ;命题 q :若ab ,则 ac 2 bc 2 , 给出下 列四个复合命题:① p 且 q ,② p 或 q ,③ p ,④ q ,其中真命题的个数为 ( ▲ ) A . 1B . 2C . 3D . 49.已知圆M : x 2 y 2 ax 0( a 0) 截直线x y 0 所得线段的长度是2 2,则圆 M 与2x 1 cos ,( ▲ ) 圆N : sin , 的位置关系是yA .相交B .内切C.外切D.相离10. 已知正数 a , b 满足19ab 5, 则 ab 的最小值为( ▲ )a bA.36B.16C.6D.4二、 填空题(本大题共 5 小题,每小题4 分,共 20分) 11.运行如图所示的程序框图 ,输出 K 的值为 ▲.数学一模试卷第2页共9页12. 某中专学校一年级有学生 400 人,若用饼图来表示各年级学生人数的构成,则一年级学生人数所占饼图的圆心角为 100 ,则全校共有学生▲ 人.13. 若点 (cos,sin ) 在双曲线x 2y 2 7 上,且 0 ,则 sin cos 的值为 25 2▲ .14.已知 f(x) 是定义在 R 上的奇函数,当x 0 时, f (x) log 2 (2 x) ( a 1)x b ( a, b 为常数),若 f (2)1,则 f( 6)____ ▲____.15. 若关于 x 的方程 m x 2kx 1( k R )恒有解,则实数 m 的取值范围是 ▲. 三、解答题(本大题共8 小题,共 90 分)16. (8 分)设不等式 2x 22x 41 的解集为 M ,若 M 为函数 f (x)x 2 1 的定义域, 2求函数 f ( x) 的值域.17. ( 10 分)已知偶函数 f ( x) ax 2(b3) x 1( a, b 为常数), f ( 1) 0 .(1) 求函数 f (x) 的表达式;(2) 当 x [ 2,2] 时, g( x) f (x) kx 是单调函数,求实数 k 的取值范围.18. ( 12 分)已知函数 f ( x) 3 sin 2x cos 2x (x R) .2 (1)当 x [ , ] 时,求函数 f (x) 的最小值及取最小值时 x 的值; 4 4(2)设ABC 的 内 角 A, B, C 所 对 的 边 分 别 为 a, b, c , 且 c 3 , f (C ) 1 , 若 m (1,sin A) 与n (2,sin B) 共线,求 a 的值.19. ( 12 分)甲、乙两校各有 3 名教师报名支教,其中甲校 2 男 1 女(依次记为 A ,B ,C ),乙校 3 男(依次记为 D , E , F ).(1)若从甲校和乙校报名的教师中各任取 1 名参与支教,①写出所有可能的结果;②求选出的 2 名教师性别相同的概率;(2)若从报名的 6 名教师中任选 2 名参与支教,求两名教师来自不同学校的概率.数学一模试卷第3页共9页20.(10 分)将两种不同的钢板截成 A、B、C 三种规格的小钢板,每张钢板可同时截得三种规格的小钢板的块数如下表所示:规格块数A 规格B 规格C 规格钢板类型第一种钢板234第二种钢板159今需要 A、 B、C 三种规格的成品分别为12、 46、 66 块,问:截这两种钢板各多少张可得所需三种规格的成品,使所用钢板张数最少.21. ( 12 分)已知等比数列{ a n} 的各项均为正数,且a24,a3 a4 24.(1)求数列 { a n } 的通项公式;(2)若数列{b n } 满足 1 26,且{b n a n }是等差数列,求数列{b n}的前n项和;b 3,b(3)已知数列 { c n} 满足c n1 ,若数列 { cn } 的前 k 项和为10,求 k 的值.( n1) log 2a n1122. ( 12 分)某公司将一款品牌童装投放到某地区销售,其制作成本为60 元/件 . 根据市场调查,在一段时间内,销售单价为80 元/件时,销量为 200 千件,而销售单价每降低 1 元就可多售出20 千件,物价部门规定销售单价不得高于80 元/件.(1)写出销量y (千件)与销售单价x (元)之间的函数关系式并写出定义域;(2)销售单价 x(元)为多少时,销售该童装所获得的利润W (千元)最大?并求最大值 .23. ( 14 分)已知椭圆x2y21(a b0) 的两个焦点是F1,F2,点 P( 2, 2) 在椭圆:ba 2 2 2上,且 PF1 PF2 4 .(1)求椭圆的方程;(2)若圆 M 经过椭圆的左右顶点及上顶点,求圆M 的方程;( 3)设倾斜角为锐角的直线l 与椭圆交于A, B 两点,且 A 点的坐标为( a,0) ,若4 2ABC 面积的最大值.AB,点 C 为( 2)中圆 M 上的动点,求5数学一模试卷第4页共9页绝密★启封前秘密★启用后2018 年江苏省职业学校对口单招联盟一模考试数学试卷答案及评分参考一、单项选择题(本大题共10 小题,每小题 4 分,共40 分.)1.A 2 .D 3.B 4 .A5.C 6.C7.B 8.B 9.B10.A二、填空题(本大题共5 小题,每小题 4 分,共 20 分)11. 99 12 . 144013 .714 .4 15. m 15三、解答题(本大题共8 小题,共90 分)16. 解:( 1)由题意可得:2x22x4 2 1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 1 分则 x22x 4 1解得 - 3 x1 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 3 分所以定义域为[ 3,1] ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 分( 2) f ( x )x 2 1 ( 3 x 1) 对称轴为 x 0所以 f ( x )max f ( 3) 8 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5 分f ( x ) min f( 0) 1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7分所以, f ( x ) 的值域为 - 1,8 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯8 分17. 解:(1) 因为函数 f (x) 为偶函数,∴ b3 0 ,⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯2分又 f( 1) 0,所以 a1, f ( x)x2 1 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5 分(2) g(x) f ( x)kx x2kx 1函数的对称轴是x k⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7 分2k2 或k当 2 22即 k 4或k4 时, g( x ) 是单调函数 .⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯10 分f(x ) 3 sin 2 cos 2 x 3 1 cos 2xsin 218. 解:( 1) 2= 22数学一模试卷 第5页 共9页因为 x31 1sin( 2x)1 sin 2xcos 2x 2⋯⋯⋯⋯ 2 分 226 22[ , 2, ]4 ,所以 6334所以当 2 - ,即 x 时,⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 分x 6 34f ( x )取最小值为 1 3 .⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 6 分 2 (2)因为 f ( C)1 ,所以 sin( 2C ) 116 2 所以 sin( 2C ) 126因为,所以 C5CC ( 0, ) 2 6 6 ,所以 ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8分3因为 m ∥ n ,所以 sin B 2 sin A ,所以 b 2a ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10 分又由 c 2a 2b 22ab cos C 得3 a 2a 2 a 2 1 ,解得a1 .⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 12 分4 4219. 解:( 1)①两校各取 1 名教师的所有可能的结果是: (A ,D ),( A ,E ),( A ,F ),( B ,D ),(B , E ),(B , F ),(C , D ),(C , E ),(C , F )共 9 种⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 分②选出的 2 名教师性别相同的结果是: ( A , D ),( A , E ),( A , F ),( B , D ) , ( B , E ),(B , F )共 6 种,所以选出的两名教师性别相同的概率 62 8 分 P= ;⋯⋯⋯⋯⋯⋯93(2)从两校报名的教师中任选 2 名的所有可能是 C 6215(种)2 名教师来自不同学校的结果是 C31C 319 (种)所以,293名教师来自不同学校的概率为5 .⋯⋯⋯⋯⋯⋯ 1215 分20. 解:设需截取第一种钢板x 张,第二种钢板y 张,所用钢板总数为 z 张,则目标函数 min z x y ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 1 分数学一模试卷第6页共9页2x y 123x 5y 46⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 5 分4x 9 y 66 x 0, y 0如图 , 可行域是阴 影部分,平移直线 x y 0,由图可知目标函数在 A 点取到最优 解yAO x解方程组2xy12⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯9 分 3x 5y 得A( 2,8) 46所以当截取第一种钢板 2 张,第二种钢板 8 张,可以满足要求,且使用钢板张数最少, 为 10 张.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 10 分21. 解: (1 )解:设等比数列的公比为 ,依题意.因为两式相除得 : ,解得,(舍去).所以 . 所以数列的通项公式为.⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 分(2)解 : 由已知可得,,数学一模试卷 第7页 共9页因为 为等差数列,所以数列 是首项为 ,公差为的等差数列.所以 .则.因此数列的前 项和:. ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 8 分(3)因为 c n 1111 ( n 1) log2 a nn( n 1) nn1所以 { c n } 的前 k 项的和为 11 1 1 1 1110 2 2 3 k k 11 11 k 1所以 k10 . ⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 12 分22. 解:( 1)据题意得 :y=200+20(80-x)=-20x+1800 (60 x 80) ⋯⋯⋯⋯⋯⋯⋯⋯ 4分( 2) w=(x-60)( -20x+1800)=-20x 2+3000x-108000 (60 x80) ⋯⋯⋯⋯⋯⋯⋯ 8分对称轴为 x=75∈[ 60,80 ]所以当 x=75 时, w 取最大值 4500.答 : 当销售单价为 75 元时,公司在该地区获得的利润最大,最大利润是 4500 千元.⋯⋯⋯⋯⋯⋯⋯⋯⋯ 12 分2a4 x 223. 解:( 1)据题意得12 2 y 2 1 2 解得 a =4, b =1,∴椭圆方程为 4 21a 2b 2⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 4 分(2)由( 1)可知椭圆的左右顶点和上顶点分别为( -2,0 ),( 2,0 ),(0,1 )∵圆 M 过这三点,∴设圆 M 的方程为 x 2 +y 2+Dx+Ey+F=042DF0分别将三点的坐标代入方程得 4 2D F 0 解得, D=0, E=3, F=-41 E F 0数学一模试卷第8页共9页∴圆 M 的方程为 x 2+y 2+3y-4=0⋯⋯⋯⋯⋯⋯⋯⋯ 8分(3)点 A 为( -a , 0)即为( -2,0 )∵直线 l 过点 A 且与椭圆有两个交点,∴直线 l 的斜率一定存在 ∴设直线 l 的方程为 y=k (x+2)将直线方程与椭圆方程联立方程组得y k ( x 2) x 2 4 y 2 化简得( 1+4k 2) x 2+16k 2x+16k 2-4=04 ∴x 1 x 2 16k 2 2 , x 1 x 2 16k 241 4k 1 4k 2∴|AB|1 k 2( x 1x 2 ) 24x 1 x 2 1 k 21 4 4 24k 25解得 k=± 1,且此时 > 0∵直线 l 的倾斜角为锐角,∴k=1∴直线 l 的方程为 y=x+2 即直线的方程为 x-y+2=0 ⋯⋯⋯⋯⋯⋯⋯⋯⋯ 11 分4 2 ABC 的面积最大即要使点 C 到直线 AB 的距离最大∵ AB 为定值,∴要使 5| 3 2|7 2 圆 M 的圆心M 到直线的距离 d 22 4∴点 C 到直线 AB 的距离的最大值为d r 7 2 5 4 2∴ ABC 的面积的最大值为 7 5 2 .⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯ 14 分 5数学一模试卷第9页共9页专业资料学习资料教育培训考试建筑装潢资料。

江苏省对口单招英语模拟试卷及答案

江苏省对口单招英语模拟试卷及答案

2018年江苏省对口单招英语模拟试卷英语2018.7.2第一部分:语言知识运用(共40小题;每题1分,满分40分)第一节在本节中,你将读到10个句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。

并将答题卡上对应的字母涂黑。

( )1. I think it must have rained,__________?A. don’t IB. didn’t IC. hasn’t itD. didn’t it ( )2. _________ the Hong Kong singer’s current popularity, she was largely unknown in the Chinese mainland before the talent show.A. DespiteB. BesidesC. WithD. Beyond ( )3. Is it the school _________ you used to study _________ they visited yesterday?A. that; thatB. which; thatC. in which; whichD. where; that ( )4. While building a tunnel through the mountain, _________.A. an underground lake was discoveredB. there was an underground lake discoveredC. a lake was discovered undergroundD. the workers discovered an underground lake( )5. The manager together with his two secretaries __________ for Hong Kong to attend a meeting there.A. leaveB. leavesC. to leaveD. is leaving( )6. __________ taken my advice, you __________ now.A. If you have; wouldn’t regretB.If you had; wouldn’t have regrettedC. If you had ; wouldn’t regretD. You had; wouldn’t regret( )7. Raising _______ retirement age in progressive steps is in _____ line with China’s labor market realities and should be prioritized, an official said Tuesday.A. the ; /B. /; theC. /; /D. the; the ( )8. Born into a family with three brothers, David was ________ to value the sense of sharing.A. brought upB. turn downC. looked afterD. held back ( )9. I’d prefer to _________ my judgment until I find all the evidence.A. showB. expressC. passD. reserve ( )10.No sooner ____ to the station ____ the train left.A. had I got,whenB. I had got,thanC. had I got,thanD. did I get,when第二节在本节中,你将读到15个短对话或句子,从题后所给的A、B、C、D 四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑。

2018年江苏对口升学英语模拟题

2018年江苏对口升学英语模拟题

2018年部分对口升学学校名单 江苏农林职业技术学院 南通科技职业学院 南通航运职业技术学院 苏州工业园区职业技术学院 无锡商业职业技术学院 江苏财经职业技术学院 镇江高等专科学校
常州工程职业技术学院 扬州工业职业技术学院 常州信息职业技术学院 南京铁道职业技术学院 沙洲职业工学院 江苏建筑职业技术学院 南通职是no one,谓语动词应当用单数。
Now that she is out of a job, Lucy _____ going back to school, but she hasn’t decided yet.A、had consideredB、ha s been consideringC、has been completedD、is going to consider
答案
C
解析
arrive是关键信息:(我在出发之前)没有预料到路会这么滑。这里谈论的显然是过去(started)的过去(had expected)
-----Hurry up. Xiao Shenyang is coming. ------ Oh, I was afraid that we_____.A、already miss himB、had already missed himC、will miss him alreadyD、have already missed him
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2018年江苏对口升学英语模拟试题
【试题内容来自于相关对口升学网站和学校提供】
I arrived late; I _____ the road to be so iey.A、wouldn’t expectB、haven’t expectedC、hadn’t expectedD、wasn ’t expecting

2018对口单招英语综合模拟卷(含答案)

2018对口单招英语综合模拟卷(含答案)

2018对口单招英语综合模拟卷第一部分:语言知识运用(共40小题,每小题1分,共40分)第一节在本节中,你将读到10个句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的方框涂满、涂黑。

1. After university, David came to China to study Chinese.A. graduationB. graduate fromC. graduatingD. graduating from2. I wonder how much the post office you for the new service.A. paidB. spentC. chargedD. cost3. The student found that all her homework was than what she in her old school.A. less heavier, used to getB. less heavier, was used to gettingC. less heavy, used to getD. less heavy, was used to getting4. It was a long time since the girl last saw her parents; no wonder she was not excited when they came.A. littleB. a littleC. a fewD. a bit5. —Is it possible to explain the rule your students?—Yes. It will have positive effect them.A. for; onB. to; forC. to; onD. on; on6. —Did you remember to give Mary the money you owed?—Yes, I gave it to her I saw her.A. whileB. the momentC. suddenlyD. once7. —Hi, Lily. Don’t forget to watch I’m a Singer at 10:00 this Friday night.—What a pity! I in a plane to Hainan for a meeting then.A. will sitB. will be sittingC. am sittingD. sit8. Only when ______ my hometown ______ how much I loved my parents.A. I left; did I realizeB. did I leave; did I realizeC. I left; I realizedD. did I leave; I realized9. —Carrie, you recite the poem first, ?—Sorry, Mr. Chen! Maybe tomorrow I can fluently recite it.A. can youB. may youC. will youD. don’t you10. A new experiment station has been built on was a wasteland ten months ago.A. whichB. whereC. the place whereD. what第二节在本节中,你将读到15个短对话或片段,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应选项的方框涂满、涂黑。

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

2018年江苏省职业学校对口单招联盟一模考试试卷和答案

绝密★启封前 秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷一、单项选择题(本大题共10小题,每小题4分,共40分。

在下列每小题中,选出一个正确答案,将答题卡上对应选项的方框涂满、涂黑)1.如果全集}6,5,4,3,2,1{=U ,集合}5,3,1{=A ,集合}4,1{=B ,那么B C A U =( ▲ ) A .}5,3{ B .}6,4,2{C .}6,4,2,1{D .}6,5,3,2,1{2.若复数i1i-=z ,则=|z | ( ▲ ) A .2 B.2 C .21D .223.已知某项工程的网络图如下(单位:天),若要求工期缩短2天,则下列方案可行的是 ( ▲)A .B 、D 各缩短1天 B .E 、F 各缩短1天C .E 、G 各缩短1天D .A 、D 各缩短1天4.若在区间]2,2[ππ-上随机取一个数x ,则x cos 的值介于0到21之间的概率为( ▲ )A .31 B .π2 C .21 D .325.若135sin )cos(cos )sin(=---αβααβα,β是第四象限角,则=-)cos(β( ▲ ) A .135 B .135- C .1312 D .1312-6.已知函数⎪⎩⎪⎨⎧>+≤-=),0(12),0(1)(x x x x f x 若5)(=x f ,则x 的值为 ( ▲ )A .2B .6-C .2或6-D .无法确定7.若圆锥的轴截面为等边三角形,则它的底面积与侧面积之比为 ( ▲ ) A .1:1 B .1:2 C .2:1 D .1:38.已知命题p :若,022=+y x 则x 、y 全为0;命题q :若a b >,则22bc ac >,给出下列四个复合命题:①p 且q ,②p 或q ,③p ⌝,④q ⌝,其中真命题的个数为 ( ▲ ) A .1B .2C . 3D .49.已知圆)0(0222>=-+a ax y x M :截直线0=+y x 所得线段的长度是22,则圆M 与圆⎩⎨⎧=+=,sin ,cos 1θθy x N :的位置关系是( ▲ )A .相交B .内切C .外切D .相离 10.已知正数a ,b 满足591-=+ab ba ,则ab 的最小值为 ( ▲ ) A.36 B.16 C.6 D.4二、填空题(本大题共5小题,每小题4分,共20分) 11.运行如图所示的程序框图,输出K 的值为 ▲ .12.某中专学校一年级有学生400人,若用饼图来表示各年级学生人数的构成,则一年级学生人数所占饼图的圆心角为100 ,则全校共有学生 ▲ 人. 13.若点)sin ,(cos αα在双曲线25722=-y x 上,且20πα<<,则ααcos sin +的值为 ▲ .14. 已知f(x)是定义在R 上的奇函数,当0x ≥时,2()log (2)(1)f x x a x b =++-+ (,a b 为常数),若(2)1f =-,则(6)f -=____▲____.15.若关于x 的方程12+=-kx x m )(R k ∈恒有解,则实数m 的取值范围是 ▲ . 三、解答题(本大题共8小题,共90分) 16.(8分)设不等式212422≤-+x x 的解集为M ,若M 为函数1)(2-=x x f 的定义域, 求函数)(x f 的值域.17.(10分)已知偶函数1)3()(2+-+=x b ax x f (,a b 为常数),0)1(=-f . (1)求函数)(x f 的表达式;(2)当]2,2[-∈x 时,kx x f x g -=)()(是单调函数,求实数k 的取值范围.18. (12分)已知函数)(cos 2sin 23)(2R x x x x f ∈+=. (1)当]4,4[ππ-∈x 时,求函数)(x f 的最小值及取最小值时x 的值; (2)设A B C ∆的内角C B A ,,所对的边分别为c b a ,,,且3=c ,1)(=C f ,若)sin ,1(A m =→与)sin ,2(B n =→共线,求a 的值.19. (12分)甲、乙两校各有3名教师报名支教,其中甲校2男1女(依次记为A ,B ,C ),乙校3男(依次记为D ,E ,F ).(1)若从甲校和乙校报名的教师中各任取1名参与支教,①写出所有可能的结果;②求选出的2名教师性别相同的概率;(2)若从报名的6名教师中任选2名参与支教,求两名教师来自不同学校的概率.20.(10分)将两种不同的钢板截成A 、B 、C 三种规格的小钢板,每张钢板可同时截得三种今需要A 、B 、C 三种规格的成品分别为12、46、66块,问:截这两种钢板各多少张可得所需三种规格的成品,使所用钢板张数最少.21.(12分)已知等比数列}{n a 的各项均为正数,且24,4432=+=a a a . (1)求数列}{n a 的通项公式;(2)若数列}{n b 满足6,321==b b ,且}{n n a b -是等差数列,求数列}{n b 的前n 项和; (3)已知数列}{n c 满足n n a n c 2log )1(1+=,若数列}{n c 的前k 项和为1110,求k 的值.22.(12分)某公司将一款品牌童装投放到某地区销售,其制作成本为60元/件.根据市场调查,在一段时间内,销售单价为80元/件时,销量为200千件,而销售单价每降低1元就可多售出20千件,物价部门规定销售单价不得高于80元/件.(1)写出销量y (千件)与销售单价x (元)之间的函数关系式并写出定义域;(2)销售单价x (元)为多少时,销售该童装所获得的利润W (千元)最大?并求最大值.23.(14分)已知椭圆:)0(12222>>=+b a by a x 的两个焦点是21,F F ,点)22,2(P 在椭圆上,且421=+PF PF .(1)求椭圆的方程;(2)若圆M 经过椭圆的左右顶点及上顶点,求圆M 的方程;(3)设倾斜角为锐角的直线l 与椭圆交于B A ,两点,且A 点的坐标为)0,(a -,若524=AB ,点C 为(2)中圆M 上的动点,求ABC ∆面积的最大值.绝密★启封前 秘密★启用后2018年江苏省职业学校对口单招联盟一模考试数学试卷答案及评分参考一、单项选择题(本大题共10小题,每小题4分,共40分.)1.A 2.D 3.B 4.A 5.C 6.C 7.B 8.B 9.B 10.A 二、填空题(本大题共5小题,每小题4分,共20分) 11.99 12.1440 13.5714. 4 15. 1≥m 三、解答题(本大题共8小题,共90分) 16.解:(1)由题意可得:142222--+≤x x …………………………………………………1分则 1422-≤-+x x解得13-≤≤x ………………………………………………3分 所以定义域为]1,3[- ………………………………………………4分 (2))13(1)(2≤≤--=x xx f 对称轴为0=x所以 8)3()(max =-=f x f …………………………………………5分 1)0()(min -==f x f …………………………………………7分所以,)(x f 的值域为[]8,1- …………………………………………8分 17.解:(1)因为函数)(x f 为偶函数,∴30b -=, …………………………………2分又(1)0,f -=所以21,()1a f x x =-=-+…………………………………………5分(2)2()()1g x f x kx x kx =-=--+ 函数的对称轴是 2kx =- …………………………………………7分 当22k -≤-或22k-≥ 即4k ≥或4k ≤-时,)(x g 是单调函数. …………………………………………10分 18.解:(1)x x x f 2cos 2sin 23)(+==22cos 12sin 23xx ++21)62sin(212cos 212sin 23++=++=πx x x …………2分 因为x ⎥⎦⎤⎢⎣⎡-∈4,4ππ,所以]32,3[62πππ-∈+x 所以当3-62ππ=+x ,即4π-=x 时,……………………………4分231取最小值为)(-x f .……………………………6分 (2)因为1)(=C f ,所以121)62sin(=++πC 所以21)62sin(=+πC 因为),0(π∈C ,所以6562ππ=+C ,所以3π=C ……………………………8分 因为m ∥n ,所以A B sin 2sin =,所以a b 2=……………………………10分 又由C ab b a c cos 2222-+=得 21443222⨯-+=a a a ,解得1=a .……………………………12分 19.解:(1)①两校各取1名教师的所有可能的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ),(B ,F ),(C ,D ),(C ,E ),(C ,F )共9种……………………………4分 ②选出的2名教师性别相同的结果是:(A ,D ),(A ,E ),(A ,F ),(B ,D ),(B ,E ), (B ,F )共6种,所以选出的两名教师性别相同的概率P=3296=;………………8分 (2)从两校报名的教师中任选2名的所有可能是1526=C (种)2名教师来自不同学校的结果是91313=⋅C C (种)所以,2名教师来自不同学校的概率为53159=. ………………12分 20.解:设需截取第一种钢板x 张,第二种钢板y 张,所用钢板总数为z 张,则 目标函数min z x y =+ ……………………………1分212354649660,0x y x y x y x y +≥⎧⎪+≥⎪⎨+≥⎪⎪≥≥⎩ ……………………………5分 影部分,平移直线0x y +=,由图可知目标函数在A 点取到最优如图,可行域是阴解⎩⎨⎧=+=+4653122y x y x 得)8,2(A ……………………………9分 所以当截取第一种钢板2张,第二种钢板8张,可以满足要求,且使用钢板张数最少,为10张. ……………………………10分 21.解:(1)解:设等比数列的公比为,依题意.因为两式相除得 :, 解得,(舍去).所以 . 所以数列的通项公式为.……………………………4分(2)解:由已知可得,,因为为等差数列,所以数列是首项为,公差为的等差数列.所以.则.因此数列的前项和:. ……………………………8分(3)因为111)1(1log )1(12+-=+=+=n n n n a n c n n所以}{n c 的前k 项的和为11101111113121211=+-=+-++-+-k k k 所以10=k . …………………………12分22.解:(1)据题意得:y=200+20(80-x)=-20x+1800 (60x 80) (4)分(2)w=(x-60)( -20x+1800)=-20x 2+3000x-108000 (60x 80) (8)分对称轴为x=75∈[60,80]所以当x=75时,w 取最大值4500.答:当销售单价为75元时,公司在该地区获得的利润最大,最大利润是4500千元. ………………………12分23.解:(1)据题意得⎪⎪⎩⎪⎪⎨⎧=+=12124222b a a 解得a 2=4,b 2=1,∴椭圆方程为1422=+y x ……………………………4分(2)由(1)可知椭圆的左右顶点和上顶点分别为(-2,0),(2,0),(0,1)∵圆M 过这三点,∴设圆M 的方程为x 2+y 2+Dx+Ey+F=0分别将三点的坐标代入方程得⎪⎩⎪⎨⎧=++=++=+-01024024F E F D F D 解得,D=0,E=3,F=-4∴圆M 的方程为x 2+y 2+3y-4=0 ……………………8分 (3)点A 为(-a ,0)即为(-2,0)∵直线l 过点A 且与椭圆有两个交点,∴直线l 的斜率一定存在∴设直线l 的方程为y=k (x+2)将直线方程与椭圆方程联立方程组得⎩⎨⎧=++=44)2(22y x x k y 化简得(1+4k 2)x 2+16k 2x+16k 2-4=0 ∴2221222141416,4116k k x x k k x x +-=+-=+∴52441414)(1||22212212=+⨯+=-++=k k x x x x kAB解得k=±1,且此时∆>0∵直线l 的倾斜角为锐角,∴k=1∴直线l 的方程为y=x+2即直线的方程为x-y+2=0 ………………………11分 ∵524=AB 为定值,∴要使ABC ∆的面积最大即要使点C 到直线AB 的距离最大 圆M 的圆心M 到直线的距离4272|223|=+=d ∴点C 到直线AB 的距离的最大值为25427+=+r d ∴ABC ∆的面积的最大值为5257+.……………………………14分。

江苏对口单招英语模拟试题

江苏对口单招英语模拟试题

江苏对口单招英语模拟试题1. Multiple Choice (单项选择)1. --- Who is the woman?--- __________. She is my teacher.A. How is sheB. What is sheC. Who is sheD. Which one is she2. --- Can you cook dinner for me?--- Of course! What time do you want _______?A. have dinnerB. to have dinnerC. having dinnerD. had dinner3. --- How long have you been in the soccer club?--- Only a few months _____ my friend Susan.A. aboveB. besideC. asD. out of4. --- What are you ______ for?--- I am applying for the job in your company.A. doingB. goingC. lookingD. finding5. --- I will have a meeting with the manager, how will I dress?--- You should dress _________.A. professionallyB. casuallyC. beautifullyD. fashionably2. Cloze Test (完形填空)The rule goes like this: If you want to be a friend, you need 1)_______ friendships. Many of us are not risk-takers at 2) _______ time we create a friendship. We seek 3) _______ with people who make us feel safe. Safe friendships are not risky. They 4) ______ us from real intimacy and closeness. Because they protect us from the risk of being known and they protect us from the risk of knowing. This is what you need to know about creating a really good friendship: It requires that you stick with someonebeyond the time it takes to venture past the shallow end 5) ________ you can allow them to be seen and known. This means that 6) _______ true friendship doesn’t leave after the good stuff comes out. It means caring for someone even when you’re staring into the 7) _________ ugly stuff about them and not ditching a friendship because they are hard to love. In other words, being a friend means you are the friend that they can count on 8)______ the muggiest fog.3. Reading Comprehension (阅读理解)My husband and I were caught in out-of-control spending like many American families. At the time, we were enjoying the wave of prosperity and felt that our mortgage debt didn’t matter. We were wrong. Although we both earned good money, we still couldn’t seem to 1) ______ our spending. In 2008, the recession hit us hard. We lost almost 2) _______ we had. I decided to take charge of our finances and track everything. Every 3)______ we spent was noted down. This way, I could see where our money was really going. I started 4) ______ our expenses and quickly saw that we were wasting a lot. We cut back on things like eating out and started cooking at home. Soon, our 5) _______ began to grow. We started to pay off our debts one by one. By being 6) ________, we even managed to save money. It took a few years, but our efforts have paid off. Now, our family is financially secure, and we live a more meaningful and happier life.4. Writing (写作)Directions: Write an essay of about 200 words on the topic "The Importance of Maintaining a Healthy Lifestyle". In your essay, you should:1. Explain what a healthy lifestyle is and why it is important;2. Discuss the benefits of maintaining a healthy lifestyle;3. Offer suggestions on how to maintain a healthy lifestyle in daily life.Remember to:1. Write in paragraphs;2. Use proper grammar, spelling, and punctuation;3. Use at least 2 key words or phrases from the essay title in your essay.The Importance of Maintaining a Healthy LifestyleA healthy lifestyle refers to a way of living that lowers the risk of being seriously ill or dying early. This includes not only physical health but also mental and social well-being. Maintaining a healthy lifestyle is crucial for several reasons. Firstly, it can prevent the development of various diseases such as heart disease, obesity, and diabetes. Secondly, it can improve one's overall quality of life and reduce the risk of mental health issues like depression and anxiety. Finally, having a healthy lifestyle can increase life expectancy and ensure a happier and more fulfilling life.There are many benefits to maintaining a healthy lifestyle. It can boost energy levels, improve mood, and enhance productivity. It can also help in weight management and reduce the risk of chronic diseases. Additionally, it can strengthen the immune system and promote better sleep quality. To maintain a healthy lifestyle, one should prioritize regular exercise, a balanced diet, stress management, and adequate sleep. It is essential to avoid harmful habits like smoking and excessive alcohol consumption. By makingsmall changes in daily habits, one can achieve long-term health and well-being.。

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2018年江苏省对口单招英语模拟试卷英语第一部分:语言知识运用(共40小题;每题1分,满分40分)第一节在本节中,你将读到10个句子,从题后所给的A、B、C、D四个选项中选出可以填入空白处的最佳选项。

并将答题卡上对应的字母涂黑。

()1. I think it must have rained, __________A. don ' t IB. didn ' t IC. hasn ' t itD.didn ' t it()2. _________ _ the Hong Kong sin ger ' s curre nt popularity, she was largely unknown in the Chin ese mainland before the tale nt show.A. DespiteB. BesidesC. WithD.Beyond()3. Is it the school ______________ y ou used to study __________ they visited yesterdayA. that; thatB. which; thatC. i n which; whichD. where;that()4. While buildi ng a tunnel through the mou ntai n, _______ .A. an un dergro und lake was discoveredB. there was an un dergro und lake discoveredC. a lake was discovered un dergro undD. the workers discovered an un dergro und lake()5. The manager together with his two secretaries __________________ for Hong Kong to atte nd a meet ing there.A. leaveB. leavesC. to leaveD. is leav ing()6. ___________ take n my advice, you _________ now.A. If you have; wouldn' t regretB. If you had; wouldn' t have regrettedC. If you had ; wouldn' t regretD. You had; wouldn' t regret ()7. Rais ing ________retireme nt age in progressive steps is in ____lin e with China' s labor market realities and should be prioritized, an official said Tuesday.A. the ; /B. /; theC. /; /D. the; the来()8. Born into a family with three brothers, David was ________________ to valuethesense of shari ng.A. brought upB. turn dow nC. looked afterD. heldback()9. I ' d prefer to _____________ myjudgment until I find all the evidenee.A. showB. expressC. passD. reserve() sooner ______ to the stati on ____ t he train left.A. had I got ,whenB. I had got ,thanC. had I got ,thanD. did I get ,when 第二节在本节中,你将读到15 个短对话或句子,从题后所给的A、B、C、D 四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑。

( )11. —The manager of the factory wants to improve production a great deal, but he doesn ' t spend much on technology.—I am afraid he won ' t realize his dream. You know ________ .A. empty vessels make the greatest soundB. you can 't eat your cake and have itC. enough is as good as a feastD. two heads are better than one( )12. —Shall we take a taxi there since time is limited— _______ . It should be hard to get one during the rush hour.A. Go aheadB. Don 't mention itC. No doubtD. Justforget it( )13. —I can't remember those grammar rules!— ________ . Practice more.A. It's hard to sayB. You're not aloneC. I'm afraid notD. It's up to you( )14. —Excuse me. Do you have the timeA. Yes, I have.B. Of course, I have.C. It 's ten to five.D. Sorry, I don ' t.( )15. —Did you give your iPhone 6 to Mary— _______ . I just lent it to her.A. Not e xactlyB. No, I didn 'tC. Yes, I didD. Notreally( )16. —The film we saw last week is very romantic.— _____ . I was also deeply moved.A. With all due respectB. I beg to differC. As predictedD. I can 't agree with you more ( )17. —Would you mind opening the windowA. Not at allB. Never mindC. Yes, I willD. No, I don 't mind ( )18. —I ' m interested in that chair. How much do you want for it—25 dollars.— _______ . I 'll give you 15 dollars.A. The chair is really niceB. That 's too muchC. Please lower the priceD. Nobody will have it exceptme( )19. —My goodness! What happened You have blood on your face. —I just killed a pigeon.A. No,no,no.B. What 's upC. Oh, don 't worry , I got hurt.()20. —I ' d like to open a current account.A. Please jump the queueB. Please ope n an acco untC. Please fill out these formsD. Your are slow()21. —Well, Toby, I remember that you had a very …how should I say …relaxed attitudetoward work at the bookstore.—_________ ! I was a model worker!A. No wayB. No doubtC. No wonder D . No problemA. She owns a hotel.B. She works for a website.C. She is a travel age nt.D. She is a guide.A. An sweri ng pho ne calls.B. Receivi ng visitors.C. Writ ing e-mails to customers.D. Maki ng reservati ons.A. a job applicati on letterB. resumeC. a tha nk-you letterD. a compla in t letteryou pay for it第三节在本节中,你将读到一段对话,从方框中所给的A B、C、D四个选项中选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑Yang: Con gratulati ons! You are not a si ngle man now.Li: thank you, I ' m planning my honeymoon, ____ 26 ____Yang: Yes, you can go to Erhai, Yunnan provin ce.Li: ___ 27 ____Yang: Well, Erhai lake is the largest highla nd lake next to Dian chi andone of the seven biggest fresh lakes in . In a sunny day, the crystal waters of Erhai lake and the snow man tled Can gsha n Mountain radiate with each other. Thus the scene is commonlydescribed as ‘ Silver Cangshanand Jade Erhai '.Li: ____ 29 _____ .Yang: It also has special meanings for your hon eym oon.Li: _____ 30 ____ , it is the so- called best places for lovers ' vows, loveas deep as river, as high as mountain.Yang: Yes, you can vow your everlasting love for your bride with the wit ness of Erhai Lake and Can gsha n Mount.Li: I will do!第四节在本节中,你将读到一篇短文从短文后各题所给的A,B,C,D四个选项中,选出可以填入空白处的最佳选项,并将答题卡上对应的字母涂黑。

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