题目

Good readers often use a flowchart（流程图）or webs(网状图）to have better picture of what they read (see the drawing on the right). A flowchart is used to put events in a certain order. Webs show a main idea and supporting details(细节). Now try to be a good reader and finish the following TWO tasks. Task 1: Read Passage l and complete the flowchart.Task 2: Read Passage2 and complete the webs. 【1】①________【2】②________【3】③________【4】④________【5】⑤________托里拆利实验首先测出了______的数值．1标准大气压等于______Pa．