2023英语周报必修一第五期答案

2023英语周报必修一第五期答案已经整理完毕，供同学们学习参考，更多英语周报答案，请关注本站。

【解析由函数的概念易知“爱心”曲线E不是从集合A=1x1-2≤x≤2到集合B={y1-m=y12.【答案】BD(x-1)2与≤1}的函数关系,故A错误;由题意可得曲线E1的方程为y(x+1)2,即y=√1-(1x1-1)2,故B正确;对于曲线E2:0sy=1x1-1(-m≤y≤0),可得|x|=c8y+1,因为一m≤y≤0,所以0≤1x|=0sy+1≤2,所以分别令x=0,1,2,可得y=m,-2,0,所以曲线E2上的整点为(-2,0),(2,0),有且只有这两个,故C错误:圆心M(1,0)到其最低点N(0,-m)的距离为√(1-0)2+(0+m)2=√m2+1,延长线段M交右半圆于点R,则MR=MN+1=√m2+1+1>m+1,所以曲线E上存在点到其最低点的距离超过T+1,故D正确综上选BD

书面表达One possible version:NOTICEA sports meeting will be held in the playground of our school from next Thursday to FridayAs you know, the pressure of study is very heavy now, especially for those senior 3. So the purpose of the sports meeting is to letevery student get relaxed, as a result of which we students can live happily and heal thilyEveryone is welcome to take part in it. Those who perform excellently at the sports meeting will get prizes. But don' t take theresults so serously because taking part is more important than the result. Good luck to everyone!

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