人教版第七册基础训练２第四题是：给下面的句子加标点。１．日常生活中用的电灯电话电冰箱电视机都离不开电２．浅海里有鱼虾贝还有海藻如海带紫菜石花菜等。这是一道学习使用“顿号”的练习，是本册教材的一个新的知识点。这道题看起来简单，但如果就题论题地做，学生不... PEP seventh book basic training 2 fourth question is: to the following sentence plus punctuation. 1. Electric lamp used in everyday life Refrigerator TV are inseparable from electricity 2. Shallow sea fish and shrimp shellfish seaweed such as seaweed seaweed and so on. This is an exercise that learns to use the “comma” and is a new point of knowledge in this book. This question may seem simple, but if you do it on the topic, the student does not ...