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  3. 學習啦>學習方法>初中學習方法>中考輔導>《中考物理選擇題的八種答題技巧》正文

    中考物理選擇題的八種答題技巧

    時間:2015-10-11 20:42:36本文內容及圖片來源于讀者投稿,如有侵權請聯系xuexila888@qq.com 淑航 我要投稿

      中考物理的難度讓許多同學感到頭疼,我們要怎樣輕松的做好物理選擇題?下面是學習啦小編收集整理的中考物理答題的八種技巧以供大家學習。

      中考物理選擇題的八種答題技巧

      1.直接判斷法

      通過觀察,直接從題目中所給出的條件,根據所學知識和規律推出正確結果,作出判斷,確定正確的選項。它適合于基本不轉彎且推理簡單的題目。這些題目主要用于考查學生對物理知識的記憶和理解程度,屬常識性知識的題目。

      2.淘汰排除法

      這種方法要在讀懂題意的基礎上,根據題目的要求,先將明顯的錯誤或不合理的備選答案一個一個地排除掉,最后只剩下正確的答案。注意有時題目要求選出錯誤的選項,那就是排除正確的選項。

      3.逆向思維法

    中考物理選擇題的八種答題技巧

      這種方法是從選的各個答案入手,進行題意分析,即是分別把各個答案中的物理現象和過程作為已知條件,經過周密的思考和分析,倒推出題中需成立的條件或滿足的要求,從而在選項的答案中作出正確的選擇。

      4.反證法

      這種方法是先提出和定理中的結論相反的假定,然后從這個假定中得出和已知條件相矛盾的結果,這樣就否定了原來的假定而肯定了定理。

      5.概念辨析法

      概念辨析法是對題目中易混淆的物理概念進行辨析,確定正誤的方法。

      6.計算求解法

      計算法是根據命題給出的數據,運用物理公式推導或計算其結果并與備選答案對照,作出正確的選擇,這種方法多用于涉及的物理量較多,難度較大的題目。

      7.推理法

      根據題給條件,利用有關的物理規律、物理公式或物理原理通過邏輯推理或計算得出正確答案,然后再與備選答案對照作出選擇。

      8.賦值法

      有些選擇題展示出一般情形,較難直接判斷正誤,可針對題設條件先賦值代入進行檢驗,看命題是否正確,從而得出結論。

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