作为及物动词,后面可跟动名词或不定式,但一般跟动名词形式的比较多。 

一、start to do

开始做;开始去做某事;开始做某事

1、The machines start to wear down, they don't make as many nuts and bolts as they used to 

机器开始出现磨损，螺母和螺钉的产量不如从前了。

2、As the plants grow and start to bear fruit they will need a lot of water. 

当植物生长并开始结果的时候，它们需要大量的水。

二、start doing something

英 [stɑ:t ˈdu:ɪŋ ˈsʌmθiŋ]  美 [stɑrt ˈduɪŋ ˈsʌmθɪŋ]  

开始做某事

You can't get very far until you start doing something for somebody else. 

当你为他人做了些事情，你才能走得更远。