6．Chinese medicine _____ using special plants that can be used for medicine．（　�。�
A．is normally cookingB．is normally cooked
C．normally cooksD．is normally to cook

分析 中藥通常是由可以用來制藥的特殊植物煎熬的．

解答 答案：B  
Chinese medicine和cook是被動關(guān)系，所以需要用被動語態(tài)，本句話是表示一般的情況，所以用一般現(xiàn)在時態(tài)．故選擇B．

點評 考查時態(tài)語態(tài)時要注意分析主語和謂語動詞之間的關(guān)系，還要注意句子所包含的時態(tài)信息．

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