2020-2021学年高二数学单元测试定心卷
本册综合卷(基础过关)
本卷满分150分,考试时间120分钟
一、单项选择题:本题共8小题,每小题5分,共40分.在每小题给出的四个选项中,只有一个选项是符合题目要求的.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619dd393c3695da35bfea4f75535509b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
A.![]() | B.1 | C.![]() | D.![]() |
【知识点】 求曲线切线的斜率(倾斜角)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b4ec4d5037ff921e16ab5309ec3300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba53065eb180a682305fddb95d14b62f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.4 | B.3 | C.2 | D.![]() |
【知识点】 根据极值点求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ae06c488100e31570805778b1d322e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3492f560d36dfba8e3c1415388ec8222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.增函数 | B.减函数 |
C.常数 | D.既不是增函数也不是减函数 |
【知识点】 用导数判断或证明已知函数的单调性
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f41be870e84c819362787849770519.png)
A.83 | B.108 | C.75 | D.63 |
【知识点】 等比数列片段和性质及应用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2840166f095af54eb936a1030a944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ce44cdc798888e0920e0441deadd255.png)
A.1 | B.2 | C.3 | D.4 |
【知识点】 求等比数列前n项和
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cfb32405d71542f1c87dd58d9d5c4a8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 求已知函数的极值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a39d0afe7453ee9dd9927bce598e535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5cf9c12181dd8683944b2b30bf8e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a573ddd04b97242c6474b8c38228b9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 等差数列的单调性
二、多项选择题:本题共4小题,每小题5分,共20分.在每小题给出的选项中,有多项符合题目要求,全部选对的得5分,部分选对的得3分,有选错的得0分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c853b5c103f4afce6084fdf2880fe47e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5cf452212a968ba9f8adab79c04e40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda15e9f9a1f317f45a468712700e546.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f255d0395fba51ca2d44293cca42e0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f17e2f884676842e1d7d05cd4ab06ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 确定数列中的最大(小)项 对勾函数求最值解读 数列新定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b19593310f0b05e6541d5eb952a2f0f.png)
该数阵第一列的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c20bc8da04fbb4bfea4e412274dde2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b73ec6f2aef5440b1b689fe74a8da96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceef1abeeef220b4fe5f7d96feedd90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7cb9d2237f0743c2e27c9b5a93acae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6750b97fd9ef90ee20f1ca76f1dc1c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbadda208c9cddcbb0ee4ec0f4148dba.png)
A.![]() ![]() | B.当![]() ![]() |
C.![]() ![]() | D.当![]() ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed56f7803061a0f7fa4148509949b84c.png)
A.0<q<1 | B.a7a9<1 |
C.Tn的最大值为T7 | D.Sn的最大值为S7 |
三、填空题:本题共4小题,每小题5分,共20分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1efc299e50a018939d03cdda50d2178.png)
【知识点】 两条切线平行、垂直、重合(公切线)问题
【知识点】 求等比数列前n项和 等比数列前n项和的基本量计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/537183c26a6ff3cf90f10d5f63d1ac36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fabd22d017b11983fe6edcc6db4fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
四、解答题:本题共6小题,共70分.解答应写出文字说明、证明过程或演算步骤.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fd8df8ea73e3640d5560f14eb0c8666.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f45f5bc7c648c0e8924b4fa7b1ad08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/532a1816979013b23d7657be71e0be90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
【知识点】 等比数列通项公式的基本量计算 等比数列前n项和的基本量计算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d15105048ad2424947da3302bfe031c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa306476a18dacc3f4412d439eda9d14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
【知识点】 已知切线(斜率)求参数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7af2e9f6cc871fd77eeaf539462765.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a66ee29a06caf509e137278020fd86f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
【知识点】 由导数求函数的最值(不含参) 利用导数研究不等式恒成立问题
(1)求数列{an}的通项公式;
(2)求{an}的前n项和Sn及使得Sn最小的n的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75fa3185af5214fa848f60c0f5c3d918.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37440b57fe2ffc13f2a873e38f55d29b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ca9e9c5a1a3ee97139331e5899b09de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57d3846dedd144237e036a622484e016.png)
【知识点】 由导数求函数的最值(不含参) 利用导数证明不等式