5．Nearly3.500years ago，people chewed on leaves or drank a kind of tea made from leaves_____ a special chemical _________ body pains and fever．（　�。�
A．possessed； reducingB．possessing； to reduce
C．possessed； reducedD．possessing； reduced

分析 人們咀嚼樹葉和喝一種由樹葉做的含有一種特殊的化學(xué)物質(zhì)的茶來減少身體疼痛和高燒．

解答 答案：B，考查非謂語(yǔ)形式和動(dòng)詞不定式的用法，possess"含有，擁有"，其其邏輯主語(yǔ)leaves構(gòu)成主動(dòng)的關(guān)系，因此使用現(xiàn)在分詞短語(yǔ)充當(dāng)后置定語(yǔ)，排除AC選項(xiàng)，根據(jù)語(yǔ)境人們"咀嚼樹葉和喝一種由樹葉做的含有一種特殊的化學(xué)物質(zhì)的茶"目的是為了"減少身體疼痛和高燒"，因此第二個(gè)空使用動(dòng)詞不定式充當(dāng)目的狀語(yǔ)，故答案為B．

點(diǎn)評(píng) 考查非謂語(yǔ)形式和動(dòng)詞不定式的用法，應(yīng)判斷其與主語(yǔ)是主動(dòng)還是被動(dòng)的關(guān)系，再確定答案，注意動(dòng)詞不定式可作目的狀語(yǔ)．

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