题目

在国际单位制中，长度的主单位是 ，时间的主单位是 ，实验中，测量长度常用的工具是 ，测量时间的工具是 ． 答案：【考点】长度的测量；刻度尺的使用． 【分析】根据国际单位制中长度、时间的主单位填写对应的单位； 测量长度的基本工具是刻度尺，测量时间的基本工具是秒表． 【解答】解： 在国际单位制中，长度的主单位是米，符号m；时间的主单位是秒，符号s； 测量长度常用的工具是刻度尺，测量时间的工文中共有10处语言错误,每句中最多有两处。错误涉及一个单词的增加、删除或修改。删除：把多余的词用斜线（\）划掉。增加：在缺词处加一个漏字符号（∧）,并在其下面写出该加的词。修改：在错的词下划一横线,在该词下面写出修改后的词。注意：1、每处错误及修改均仅限一词。2、只允许修改10处,多者（从11处起）不计分。I often dream of a teacher. I dream of standing on the platform in the classroom and give lessons to lovely boys and girls. I teach them, play with them, but watch them growing up. I am always young when I was staying with them. I know there is not easy to be a teacher. You have to learn in order to teach. Without enough knowledges, you can never learn well. What is more, you have to be friends with your pupils and take good care of him. Only by this way can you be a good teacher and win respect from them. Though I am a student now, I will work as very hard to make my dream come true.