Participle Phrase 怎用?

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Participle phrase 系将两个句子合埋一句
意思不变
只保留一个动词 Participle phrase 转时式做法 (1) Present Tense/ Past Tense ----(a) Active 变成ing (如play/played 变成playing) ----(b) Passive 变成 p.p. / being p.p. (2) Present Perfect Tense/ Past Perfect Tense ----(a) Active 变成 having + p.p. (如 has/had played 变成having played) ----(b) Passive 变成 having + been + p.p. (如 has/had been played 变成having been played) They stood at the corner. They were waiting for a bus. (Subject相同做前面) Standing at the corner
they were waiting for a bus. We heard the boys. They were shouting to each other. (Subject不相同做后面 ) We heard the boys shouting to each other. The Children were amazed by the dome. They were speechless. (Subject相同做前面) Amazed / Being amazed by the dome
the children were speechless. The boys was frightened by the sudden noise. They ran out of the house. (Subject相同做前面) Frightened / Being frightened by the sudden noise. They ran out of the house. The boy had been walking for several hours. He felt tired. (Subject相同做前面) Having been walking for several hours
the boys felt tired.