Unit4Morepractice课件牛津上海版英语八年级上册.pptx

24Amazing thingsNumbersMore practice* 1. When was Nanpu Bridge built? How long did it take to finish the bridge?a. in 1982; about 13 years b. in 1991; about 3 years2. What was the population of China in 1949?a. about 300,000,000. b. about 400,000,0003. How big is Tian'anmen Square?a. 400,000 m2 b. 40,000 m24. What are the average temperatures in winter and summer in Shanghai?a. about 0℃;about 26℃ b. about 5℃;about 30℃Before you readA0 Have a quiz????The average of 3, 5 and 10 is 6./??v?r?d?/How do we know these numbers? Venn diagramWhat can help make conducting survey easier?Before you readA1 Think, discuss and learnCharts, graphs and DiagramsWhat kinds of charts do you know?Bar chartPie chartLine Graph What are the steps to conduct a survey?Before you readA1 Think, discuss and learnStep 1: decide who to askStep 2: designs the question(s)Step 3: ask the question(s)Step 4: tally (统计) the result(s)Step 5: show the result(s) of the survey?SurveyReportcharts/graphs/diagrams/tablesintroductionconclusion Before you readA2 Look and Describe the pie chart. The pie chart shows _______________________________There are __________________________________________________________________________________________________________________________________________________________________________________________Students' favourite subjectsTotal: 40 students__________________________________________________________So we can see Math is___________________________, while __________________________________________________________introductionconclusion the favourite subjects of my class.40 students in total25% of the students like maths best.20% of the students like English best.20% of the students like P.E best.15% of the students like Chinese .10% of the students like music best.10% of the students like science best.English and P.E.share the samepercentage of students, which is20% Music and science are liked by the same number of students,each accounts for 10%Can