6．It worried her a bit           she is becoming weaker and weaker．（　�。�
A．whatB．whetherC．thatD．why

分析 她變得越來越虛弱，這讓她有點擔心．

解答 答案為C．本題考查名詞性從句中引導詞的運用．題干中是it做形式主語，空格后面為真正的主語從句；從句為完整的句子，所以選用不擔任成分，不表達意思的that，故選C．what 在從句中可以充當主語、賓語或表語，不符題意；whether表示"是否"，不符合題意；why表示原因，在句中做狀語，不符合題意．

點評 名詞性從句考查的關(guān)鍵是連接詞的選用和語序：名詞性從句用陳述語序；掌握各連接詞的用法，在此基礎(chǔ)上判斷．

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