Unit1 单元话题相关阅读单（Week2）2023-2024学年沪教牛津版英语七年级下册

Week 2阅读单 —（牛津沪教七下U1话题相关） Day 5 Look at yourself in a mirror. What is the first thing you see? It is your face. The human face doesn’t just show our emotions (情绪). It can do much more. Here are some fun science facts and secrets about the human face. You have big eyes and a small nose. While your friend has small eyes and a big nose. What makes you and your friend look different? The answer is genes (基因). Scientists found 15 genes deciding (决定) some of our facial features (面部特征). Some of these genes can be passed down from parents to children. That’s why we often hear people say, “You are just a clone (克隆) of your mom, or of your dad.” But what facial features did you get from your mom? And what parts came from your dad? No two faces are the same Eyes If both of your parents have double eyelids (双眼皮), you can have double eyelids or single eyelids (单眼皮). If both of your parents have single eyelids, you usually have single eyelids. Chin If one of your parents has a big chin (下巴), usually you have a big chin. Nose The tip of the nose is the most “handed down” part. If one of your parents has a big nose, you are likely to have the same nose shape. Skin color One parent has a light skin color. The other parent has a dark skin color. Most of the time, you have a skin color in between. Even twins don’t look the same. Their looks are just very similar (相似的). They can have some small differences. 1．________ make(s) everyone look different. A．Mirror B．Emotions C．Genes D．Environment 2．Why do we look like our parents? A．Because genes deciding some of our facial features can be passed down from parents to children. B．Because we have been living with parents for a long time. C．Because there is no gene passed down from parents to children. D．Because some genes can be passed down from children to parents. 3．If both of your parents have single eyelids, you usually have________. A．big eyes B．double eyelids C．small eyes D．single eyelids 4．If you have a big chin, it means that_____