如图所示为种群与物种的关系图解,关于它们的叙述错误的是( )
A:从图中可以看出,一个物种可以有很多种群,这些种群间只是因为地理隔离,阻碍了基因交流
B:若物种2是由物种l形成的,则物种1一定发生了基因频率的改变
C:物种1形成物种2的必要条件是地理隔离
D:若种群1与种群2的基因频率都发生了改变,则这两个种群都在进化
A南方地区____ ①旱地麦浪大豆香
B北方地区____ ②山清水秀稻花香
C西北地区____ ③大漠黄沙驼铃响
D青藏地区____ ④雪山青稞奶茶香
给加下划线的字注音。
嘴巴____ 黄昏____ 宝座____
As a music teacher for twenty-seven years I have always known that music touches the soul. It can break through all kinds of barriers to reach students in a very special way. It can be the means for each child to find their light. A few years ago I was blessed with the opportunity to teach pre-school students one afternoon a week. One of my most memorable students was Vanessa. She was five years old, had difficulty walking and could not speak. We mostly sat on the floor for our music lessons and Vanessa liked to sit on my lap. One of her favorite songs was John the Rabbit. It was a call and response song where I sang the call and the students clapped two times while singing the repeating phrase “Oh yes!” Vanessa liked to put her hands together with mine and clap with me. We performed that song during every class Vanessa and I clapped together. She never said or sang a word. One day late in the school year when the song was finished Vanessa turned around, looked at me in the eye, clapped her tiny hands two times and said the words “Oh yes!” I opened my mouth and could not speak. Through music we had made a connection. Several years later I came across Vanessa on the street in town. I stopped my car and waved to say hello. She waved back with a big smile on her face and then clapped her hands two times mimicking the song we had performed in our music class. This precious little girl through her connection with music left an impression on me that will last forever. Every child has the ability to learn and grow. It is up to us educators to discover the way to reach each and every one of our students. We all must find each child’s light.