高一数学必修一集合试卷及答案 一、选择题(每小题3分,共30分) 1.若集合A={1,2,3,4},B={2,3,4,5},则A∩B={ A. {1,2,3,4} B. {2,3,4} C. {1,2,3,4,5} D. {1,5} 答案:B. {2,3,4} 2.若集合A={x|x是偶数},B={x|x是质数},则A∩B={ A. {2,4,6,8} B. {2,3,5,7} C. {2,4,6,8,3,5,7} D. {2,3,4,5,6,7,8} 答案:B. {2,3,5,7} 3.若集合A={x|x是正整数},B={x|x是质数},则A∪B={ A. {2,3,4,5,6,7,8} B. {1,2,3,5,7} C. {1,2,3,4,5,6,7,8} D. {2,3,5,7} 答案:C. {1,2,3,4,5,6,7,8} 4.若集合A={x|x是正整数},B={x|x是偶数},则A∩B={ A. {2,4,6,8} B. {2,3,5,7} C. {2,4,6,8,3,5,7} D. {2,3,4,5,6,7,8} 答案:A. {2,4,6,8} 二、填空题(每小题3分,共30分) 5.若集合A={1,2,3,4},B={2,3,4,5},则A∪B=________ 答案:{1,2,3,4,5} 6.若集合A={x|x是正整数},B={x|x是质数},则A∩B=________ 答案:{2,3,5,7} 7.若集合A={x|x是正整数},B={x|x是偶数},则A∪B=________ 答案:{2,3,4,5,6,7,8} 8.若集合A={1,2,3,4},B={2,3,4,5},则A-B=________ 答案:{1} 本文来源:https://www.wddqw.com/doc/c85c59aaf405cc1755270722192e453610665bb3.html