在中国五千多年的发展历程中，各族人民用自己的勤劳和智慧不仅创造了辉煌的历史和灿烂的文化，而且形成了独特的民族精神，其核心是（    ）

“问温州晴为何物，只叫人晒不干校裤。”三月来连续的降雨，不仅影响人们的生活，还加重流感的传播。为了我们的健康，下列做法可取的是（    ）

①为避免感染病毒请假在家上网聊天     ②雨天出门要带雨具，尽量避免淋雨着凉

③加强体育锻炼，提高身体免疫能力    ④保持室内空气流通，尽量不去人多的地方

    It was a Monday morning. When a teacher walked into the1, he heard a low voice: “Here is the teacher. I am 2this boring fellow(烦人的家伙) is going to talk about putting in commas(逗号).” It was a boy's3. His name was Bill. He was talking4the boy next to him. The teacher didn't get angry. He said5about it, then he really began to talk about putting in commas, and then he wrote6the sentence: “Bill says the teacher is a boring fellow.” The class7and Bill's face8red. “Now,” said the teacher, “I'll 9you how important commas are.”

    He put two commas in the sentence, and now read, “10is a boring fellow.”