以下关于生物变异的叙述，正确的是

    There're five members in my family—my parents , my grandparents, and me . My mother is a teacher. She teaches Chinese in our school. She likes music. My father is a teacher, too. He teaches art in the Guang Ming primary school. He likes going hiking. My grandmother is a worker. She likes reading books. My grandfather is a scientist. He likes playing chess. I am Betty. I'm in Shi Yan primary school. I like singing and dancing. Look! I have a happy big family. Isn't it?

2014广州黄埔菠萝庙会于3月15日在南海神庙举行。众多岭南民俗风情特色节目、礼品不仅吸引了本地游客，同时也有不少外籍人士的身影出现在庙会各处。千年庙会中出现的现象（   ）
①说明中华传统文化已成为世界主流文化，领导着世界文化潮流   ②表明中华传统文化在全世界得到了越来越多人们的认同
③有利于扩大中华传统文化在国际上的影响                                       ④说明我们要弘扬中华传统文化，抵制外来文化 

每年的9月10日，全国各地都会以各种形式庆祝教师节。老师受到人们尊重，主要是因为（  ）
①老师是人类文明的传播者
②老师教给我们做人的道理
③老师帮助我们掌握科学文化知识和技能
④老师具有很高的科学文化水平