英语高考考前知识清理第15天：代词
21. It is (just) like sb. to do sth. 该句型为“某人（恰恰）是。。。这个样子”。用来表示赞扬或不满，若用否定式，则表示怀疑。
It’s like him to leave the work to others. 他就是这样的一个人，把工作推给别人。
It isn’t like him to have said anything like that. 他可不是说出那种话的人。
22. It is up to sb. to do sth. 该句型为“该由某人做。。。”。该句型中up后的to是介词。
It is up to him to clean our classroom today. 今天应由他做教室清洁。
It is up to parents to teach their children manners. 该由父母教孩子礼貌。
