1、兰考二中20152016学年下学期期中考试高一年级数学试卷一、选择题(共60分)【1】与405角终边相同的角是( )Ak36045,kZ Bk18045,kZCk36045,kZ Dk18045,kZ【2】集合A与集合B的关系是( )AAB BAB CBA D以上都不对【3】若02,且sin ,则角的取值范围是( )A. B. C. D.【4】已知点P落在角的终边上,且0,2),则的值为( )A. B. C. D.【5】已知tan ,则的值是( )A. B3 C D3【6】若sin(3),则cos等于( )A B. C. D【7】下列关系式中正确的是( )Asin 11cos 10sin 16
2、8 Bsin 168sin 11cos 10Csin 11sin 168cos 10 Dsin 168cos 10sin 11【8】已知简谐运动f(x)2sin(|)的图象经过点(0,1),则该简谐运动的最小正周期T和初相分别为( )AT6, BT6,CT6, DT6,【9】若|5,|8,则|的取值范围是( )A3,8 B(3,8) C3,13 D(3,13)【10】已知A、B、C三点在一条直线上,且A(3,6),B(5,2),若C点的横坐标为6,则C点的纵坐标为( )A13 B9 C9 D13【11】已知cos cos sin sin 0,那么sin cos cos sin 的值为( )A1
3、 B0 C1 D1【12】函数f(x)sin xcos x(x,0)的单调递增区间是( )A. B.C. D.二、填空题(共20分)【13】已知平面内O,A,B,C四点,其中A,B,C三点共线,且xy,则xy_.【14】计算12sin222.5的结果等于_【15】函数f(x)sinxcosx,x的最小值为_【16】已知非零向量与满足0且,则ABC的形状是_三解答题(17小题10分,其它各题每题12分)【17】已知,且,求sin 与cos 的值【18】求函数ysin的单调递减区间,并叙述怎样由函数ysinx的图象变换得到函数ysin的图象。【19】已知a(1,2),b(3,2),当k为何值时,(
4、1)kab与a3b垂直?(2)kab与a3b平行?平行时它们是同向还是反向?【20】已知向量a(sin,cos2sin),b(1,2)(1)若ab,求tan的值;(2)若|a|b|,00,设函数f(x)(ab)bk,(1)若f(x)的图象中相邻两条对称轴间距离不小于,求的取值范围;(2)若f(x)的最小正周期为,且当x,时,f(x)的最大值为2,求k的值2015-2016年度高一下学期期中考试数学试题答案一、选择题C C D D C A CACC D D【13】答案:1 【14】答案:. 【15】答案:1 【16】答案:等边三角形三解答题【17】已知,且cos 0,即sin cos 0,sin
5、 cos 0,sin cos ,sin cos ,得sin ,得cos .【18】求函数ysin的单调递减区间,并叙述怎样由函数ysin x的图象变换得到函数ysin的图象。 答案:单调递减区间为 将函数ysinx的图象所有点的横坐标缩短到原来的一半,纵坐标不变得到函数ysin2x的图象再将函数ysin2x的图象向右平移个单位得到函数ysin的图象。【19】已知a(1,2),b(3,2),当k为何值时,(1)kab与a3b垂直?(2)kab与a3b平行?平行时它们是同向还是反向?答案:(1)kabk(1,2)(3,2) (k3,2k2),a3b(1,2)3(3,2)(10,4)当(kab)(a
6、3b)0时,这两个向量垂直由10(k3)(2k2)(4)0,解得k19.即当k19时,kab与a3b垂直(2)当kab与a3b平行时,存在唯一的实数使kab(a3b)由(k3,2k2)(10,4)得,解得.即当k时,两向量平行,ab与a3b反向【20】已知向量a(sin,cos2sin),b(1,2)(1)若ab,求tan的值;(2)若|a|b|,0,求的值解答:(1)因为ab,所以2sincos2sin,于是4sincos,故tan.(2)由|a|b|知,sin2(cos2sin)25,所以12sin24sin25.从而2sin22(1cos2)4,即sin2cos21,于是sin.又由0知
7、,20,设函数f(x)(ab)bk,(1)若f(x)的图象中相邻两条对称轴间距离不小于,求的取值范围;(2)若f(x)的最小正周期为,且当x,时,f(x)的最大值为2,求k的值解析a(cosx,sinx),b(sinx,0),ab(cosxsinx,sinx)f(x)(ab)bksinxcosxsin2xksin2xcos2xksink.(1)由题意可得:.1,又0,的取值范围是01.(2)T,1.f(x)sinkx,2x.当2x,即x时,f(x)取得最大值f2.sink2.k1.高一英语期中考试参考答案阅读理解21-23 CCB24-27 CBAD 28-31 CDBC 32-35 BACD
8、 36-40 CBEFD完形填空:41-45 BADCC 46-50 DBBCA 51-55 DDCAA 56-60 ABCBD语法填空61.won62.with63.Although/Though64.that65.amazing66.tourism67.will be built68.reducing69.for 70.A单词拼写:71.remind 72.belief 73.energetic 74.apologize 75.forgive 76.admire 77.sigh 78.strength 79.diet 80.balanced 81.debt 82.patience 83.
9、exist 84.violent 85.unlike 86.independence 87.memory 88.breath 89.lie 90.curious短文改错1. little-less2. toytoys 3. gowent 4. itthem5. old-new6. which-what7.say-said8. year前面加上a9.patiences-patience10.去掉last前的to书面表达 Dear Chen Li, Im glad to hear from you. You asked me about the difficulties you may meet
10、with when you get here in UK. Now, Id like to tell you something about it. First, you may have the problem about the language you think you are well prepared. You may find it difficult to communicate with the natives, because many of them have a strong accent. Besides, you may not get used to the we
11、stern food here or even hate to have it. Whats more, you may feel lonely and miss your family and friends, especially in the very beginning. However, you neednt worry about it. Several weeks later, you will get used to everything here and love the place, and Ill also try my best to help you when necessary. Best wishes! Yours, Li Hua