7．Bitten （bite） by the snake in the bush for half an hour，Susan was sent back to the camp．

分析 在灌木叢被咬蛇傷半小時后，Susan 被送回營地．

解答 答案是Bitten．本題考查動詞的適當(dāng)形式；bite及物動詞，咬；Susan是"被咬"，所以用過去分詞做狀語，表示被動，故答案是Bitten．

點評 本題是要求用所給動詞的適當(dāng)形式填空，解題時首先考慮句中需要的是謂語動詞還是非謂語動詞；其次，如果是謂語動詞關(guān)注時態(tài)、語態(tài)和數(shù)的變化；如果是非謂語動詞要聯(lián)系非謂語的基本用法判斷非謂語的形式．

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