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(句 句 2);作連詞時,意為 “ ________” (句 句 4),相當(dāng)于 or。 【 即學(xué)即練 】翻譯下 面 句子。 1. His students in Chinese literature are also his teachers otherwise. ___________________________________________ 2. He felt very tired yesterday, otherwise he would have helped you. ___________________________________________ 參考答案 otherwise 【自我歸納】 否則 ,不然 【 即學(xué)即練 】 1. 這些人在中國文學(xué)方面是他的學(xué)生,在其他方面卻是他的老師。 2. 他昨天很累,不然他會幫你的。 operate 【語境展示】 閱讀下 面 句子,并試著歸納 operate 的意思及用法。 1. The machine can operate for 15 hours continuously at full power. 2. The medicine operated quickly. 3. The doctor says he may have to operate. 4. He operated on the baby’s throat and saved its life. 5. Clive was experienced in operating the puters. 【自我歸納】 ★ operate作不及物動詞時,意為: ① ________(句 1); ② 發(fā)生影響,起作用(句 2);③ 動手術(shù)(常與介詞 ________連用)(句 句 4)。 ★ operate 作及物動詞時,意為 “ 操作,控制,使運(yùn)行 ” (句 5)。 【即學(xué)即練】 翻譯下 面 句子。 1. This machine operates n