句型一Doing sth, sb did sth【例句】Linking arms with one of the instructors, I helped carry the young man out of the water.我和其中一位教官挽着手，帮助把这个年轻人从水里抬了出来【例句】Looking down, Winters saw a two-year-old on the sidewalk gasping for air and his mother desperately begging for help.往下看，温特斯看到一个两岁的孩子在人行道上喘着粗气，他的母亲拼命地乞求帮助。句型二Sb did sth, doing sth【例句】Dennis got a group text,informinghim that the couple he had seen before were at the hospital.丹尼斯收到一条群发短信，告诉他他之前见过的那对夫妇在医院。【例句】The post has gained the atte
