第三章第二節因特網上的信息檢索.doc

of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of totection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
網絡信息檢索的思想和方法之后，知道搜索引擎的工作原理將使學生進一步提高從網絡獲取信息的能力。
3、教學目標
〔1〕知識和技能
掌握因特網信息檢索的三種方法，理解各類搜索引擎的特點和發展，理解理解搜索引擎的工作原理。
〔2〕過程與方法
通過完成任務體驗并總結網絡信息檢索的三種方法，通過生生交流、師生交流和任務來總結各類搜索引擎的特點及局限性。讓學生在任務中發現問題，提出對搜索引擎未來發展的建議。進而理解搜索引擎的工作原理。
〔3〕情感態度和價值觀
學生在經歷師生討論和任務完成之后，能夠分析各種信息檢索工具的優缺點，認識到現有網絡信息檢索工具的發展趨勢，提高自身創新意識和對網絡信息檢索技術的興趣。
4、教學重點
〔1〕、掌握在因特網上進行信息檢索的方法。
〔2〕、知道各類搜索引擎的優缺點及工作原理與發展趨勢，能夠分析其局限性。
〔3〕、掌握常用因特網信息檢索工具的使用方法，能熟練使用檢索工具獲取信息。
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of protection, complete with warning signs, isolating network protection facilities
of rural drinking water sources, protection of drinking water sources in rural areas by the end of the delimitation of the scope of