小题1:A
小题1:A
小题1:C
小题1:D
小题1:A根据第一段最后一句Cellphones are everywhere, and some people don’t know what the limits of cellphone use are.可知手机到处都是但是有些人不知道使用时的限制以及下问题到打手机的礼貌，故答案为A
小题1:A根据第三段前两句Nowadays, that’s the biggest problem. People disturb other people, first with the ringing of their cellphones and then with their conversations because they usually speak very loudly.可知答案。
小题1:C根据划线部分的前一句But again, not everybody wants to listen to other people’s private conversations.不是人人想听别人的谈话可知作者用吸烟的例子来说明情况
小题1:D People who use cellphones are not interested in beautiful scenery at all.“用手机的人不喜欢美景”与第一段第一句意思背离，第一句是说“你在赏景这时手机铃声打破了这份安宁。”故D选项叙述不正确