I'm Lucy. There are four people in my family. They are my grandfather, my parents and me. My grandfather likes to plant flowers. He works on his farm every morning. My father likes to watch TV. He likes to watch the news very much. My mother likes to go shopping. She often buys new clothes for us. I like to read books. I go to the library on Sundays.

材料一外争主权，内除国贼，反对在对德“和约”上签字，惩办国贼曹汝霖等人。

——“五四”口号

材料二“在‘五四’运动90周年之际，我们回顾历史，缅怀先烈，进一步弘扬伟大的‘五四’精神，这对于激励广大青年同全国各族人民一道，实现中华民伟大复兴而不懈奋斗，具有十分重要的意义。”

——李长春讲话

①基因通过控制酶的合成来控制代谢过程，进而控制生物体的性状

②基因通过控制蛋白质的结构间接控制生物体的性状

③控制某遗传病的基因位于线粒体DNA上，若母亲患病则子女必患病

④控制某遗传病的基因位于线粒体DNA上，则正交和反交后代性状相同．