段首针对图表要做简单说明，句型可考虑表语从句、名词性从句、介词状语等，no.1: it is shown in the chart that+ 句子。it can be conclued from curve that+句子。 no.2： what is shown in the pie chart is that +句子。no.3: as presented in above tren

d chart, we can easily conclude the information that +句子。中间段和末段作文更多范例句式待持续更新，喜欢就点赞吧