题目

Rewrite the sentences.按要求改写下列句子。1. I like the picture on the left. (对划线部分提问)_______________________________________________________2. I like this painting because I like its colours. (对划线部分提问)_______________________________________________________3. Cindy took a lot of pictures yesterday. (改成一般疑问句)_______________________________________________________4. Oh, no. It’s not my brush. (写出问句)_______________________________________________________5. Peter is ten years old this year. (用next year代替划线部分)______________一个多用插座上带有一只小型电压表，把一只额定功率是500W的电热水壶接在上面时，电压表显示的电压值是200V，你能否根据这一条件，粗略的估计电热水壶此时的实际功率的大小？说出你运用的知识，同时指出你在估算时做出了什么近似处理．