七年级上数学期末模拟综合素质测评
（本卷满分：120分，考试时间：120分钟）
一、 选择题（本大题共10个小题，每题只有一个正确的选项，每小题3分，满分30分）
1、某市2012年元旦的最高气温为2℃，最低气温为-8℃，那么这天的最高气温比最低气温高 ( )
A．-10℃ B．-6℃ C．6℃ D．10℃
2、-6的绝对值的倒数等于 ( )
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=13.4&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"13.4","h":"19","dataType":"png","c":"word/media/image1_1.png","imgOriW":320,"imgOriH":448})
B． C． D．
3、未来三年，国家将投入8500亿元用于缓解群众“看病难，看病贵”问题．8500亿元用科学记数法表示为 ( )
A．![](https://wkrtcs.bdimg.com/rtcs/image?w=63.6&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"63.6","h":"21.2","dataType":"png","c":"word/media/image5_1.png","imgOriW":1536,"imgOriH":512})
亿元 B．亿元 C．亿元 D．亿元
4、当x=3,y=2时，代数式![](https://wkrtcs.bdimg.com/rtcs/image?w=48&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"48","h":"41.333333333333","dataType":"gif","c":"word/media/image9.png"})
的值是（ ）
A、![](https://wkrtcs.bdimg.com/rtcs/image?w=15.6&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"15.6","h":"41.333333333333","dataType":"gif","c":"word/media/image10.png"})
B、2 C、0 D、3
5、![](https://wkrtcs.bdimg.com/rtcs/image?w=75.933333333333&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"75.933333333333","h":"23.466666666667","dataType":"gif","c":"word/media/image11.png"})
去括号应为（ ）
A、-a+b+c B、-a+b-c C、-a-b-c D、-a-b+c
6、如图1所示,圆柱的俯视图是（ ）
![](https://wkrtcs.bdimg.com/rtcs/image?w=427.6&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"427.6","h":"91.733333333333","dataType":"png","c":"word/media/image12.png","imgOriW":550,"imgOriH":118})
![](https://wkrtcs.bdimg.com/rtcs/image?w=132&md5sum=ae404843396d0c7a0ddeb66d237da36f&sign=1bd2f0d8b7&rtcs_flag=1&rtcs_ver=3&l=webapp&bucketNum=118&ipr={"t":"img","w":"132","h":"88.533333333333","dataType":"png","c":"word/media/image13_1.png","imgOriW":164,"imgOriH":110})
7、如图，从A到B最短的路线是（ ）.
A. A—G—E—B B. A—C—E—B
C. A—D—G—E—B D. A—F—E—B
8、下列事件，你认为是必然事件的是（ ）
A．打开电视机，正在播广告． B．今天二月，明天一定是三月．
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