動詞是英語造句的中樞，動詞本身就相當複雜，得考慮時態、語態等問題。再加上短語動詞，就更加繁雜。今天分享一下短語動詞的構成。共分為4類，請看：
1、動詞+副詞：此類型短語動詞的及物性取決於動詞是及物還是不及物。
1）vi+adv 不及物動詞短語：He sat down and then began to drink water.
2）vt+adv 及物動詞短語：He took off his coat and went into his bedroom without saying a word.
3）v+adv 及物或不及物，取決於意義。如：I woke up early this morning.（wake up醒來） ；Please wake me up before 6 o’clock tomorrow morning. （wake up叫醒，弄醒）
注意：此類型及物動詞短語，牢記：名詞放兩邊、代詞放中間。如：wake Tom up=wake up Tom；wake him up（不可以說成wake up him）
2、不及物動詞+介詞：雖然說動詞是不及物的，但後面的介詞要接賓語，所以整體是一個及物動詞短語。
例：Please look at the two pictures carefully and then tell me the differences between them.
3、及物動詞+名詞+介詞：這類短語動詞，n作vt的賓語，後面的prep還要接個賓語，所以整體上是一個及物動詞短語。
例：You should pay attention to the mistakes you made here.
4、不及物動詞+副詞+介詞：這類動詞短語可理解為adv來修飾vi，然後prep後要接個賓語，所以整體上是一個及物動詞短語。
例：We need to come up with a plan to tell people how to do it.
