1.选择题- (共7题)
4.某奶茶店为了促销,准备推出“掷骰子(投掷各面数字为1到6的均匀正方体,看面朝上的点数)赢代金券”的活动,游戏规则如下:顾客每次消费后,可同时投掷两枚骰子一次,赢得一等奖、二等奖、三等奖和感谢奖四个等级的代金券,用于在以后来店消费中抵用现金.设事件A:“两连号”;事件B:“两个同点”;事件C:“同奇偶但不同点”.
①将以上三种掷骰子的结果,按出现概率由低到高,对应定为一、二、三等奖要求的条件;
②本着人人有奖原则,其余不符合一、二、三等奖要求的条件均定为感谢奖.请替该店定出各个等级奖依次对应的事件并求相应概率.
5.
某班50名学生在一次数学测试中,成绩全部介于50与100之间,将测试结果按如下方式分成五组:第一组[50,60),第二组[60,70),…,第五组[90,100].如图是按上述分组方法得到的频率分布直方图.
(Ⅰ)由频率分布直方图估计50名学生数学成绩的中位数和平均数;
(Ⅱ)从测试成绩在[50,60)∪[90,100]内的所有学生中随机抽取两名同学,设其测试成绩分别为m,n,求事件 “|m-n|>10”的概率。
7.某中学高一、高二、高三年级分别有60人、30人、45人选修了学校开设的某门校本课程,学校用分层抽样的方法从三个年级选修校本课程的人中抽取了一个样本,了解学生对校本课程的学习情况.已知样本中高三年级有3人.
2.单项选择- (共9题)
8.
—How about _______ Christmas evening party?
—I should say it was _______ success.
—I should say it was _______ success.
A.a;a | B.the;a | C.a;不填 | D.the;不填 |
9.
The Smiths went to the country for the weekend as they ______ to the office.
A.needn’t have gone | B.mustn’t go |
C.may not go | D.didn’t have to go |
10.
He has come to_____.
A.checked his blood pressure |
B.having his blood pressure checked |
C.have his blood pressure checked |
D.have checked his blood pressure |
11.
I strongly suggest that the information ____ in my report ____ to Mr Brown without delay.
A.to be referred to; to be e-mailed | B.referring to; e-mail |
C.referred to; be e-mailed | D.being referred to; being e-mailed |
13.
He is a student at Oxford University, ____for a degree in computer science.
A.studied | B.studying |
C.to have studied | D.to be studying |
14.
She thought I was praising her child,_____,in fact,I was scolding him for his bad behaviors at school.
A.what | B.while | C.so that | D.therefore |
15.
Last summer holiday, I went back to my hometown, ________ the neighbours and the house ________ I used to be familiar with were gone.
A.only finding; which | B.only to find; that |
C.to find; whom | D.found; that |
试卷分析
-
【1】题量占比
选择题:(7道)
单项选择:(9道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:0
5星难题:0
6星难题:9
7星难题:0
8星难题:0
9星难题:0