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[備考策略 ] 明辨關(guān)系,看動作進(jìn)展,充分考慮時態(tài)和語態(tài),慎重選擇三種形式。 例 It is said that in Australia there is more land than the government knows what to do with it. [考題盤點 ] 28. (0234) The research is so designed that once ____nothing can be done to change it. A. begins B. having begun C. beginning D. begun 此題結(jié)合省略考查過去分詞的用法,完整的從句為 once it was begun,故選 D。 ④ 動詞不定式作狀語、定語時,注意避開定向思維的干擾。若不定式邏輯主語同時也為句子主語,用主動表被動,反之用被動 (如:I’m leaving on business. Do you have anything to be taken there?) ,另還需注意不及物動詞加介詞;現(xiàn)在分詞作定語表動作正在進(jìn)行或習(xí)慣性經(jīng)常性動作;過去分詞作定語表動作完成,與所修飾名詞構(gòu)成動賓關(guān)系。 [過關(guān)訓(xùn)練 ] 3: (遼 0429) — M