语法是英语学习的基础，也是的四六级英语考试的基础，掌握好英语语法无论是对还是以后的英语学习都是有很大帮助的。下面频道为大家整理了常考知识讲解，一起来学习一下吧!
　　英语常考知识点讲解：短语动词
　　Vi adv The plane took off two hours late.
　　Vi prep They looked round the Cathedral.
　　Vi prep (有被动语态) She’s looking after her sister’s children. The children were always well looked after.
　　Vi adv prep I began to look forward to their visits.
　　Vt O adv Some women choose to stay at home and bring up their children. The children were brought up by their mother. They took him on.
　　Vt adv O (无被动语态) I am trying to give up smoking.
　　Vt O prep We talked Donald into agreement.