我们在英语学习的过程中，常常会遇到to doing或to do的动词短语，前者是介词，介词之后，可以接:名词、代词或
动名词(V-ing) ；后者是动词不定时，区分二者很重要，语法填空题目也常考这样的题型。为了区分二者，我把常出现to为介词的短语列举如下:
1，be adjusted to doing sth=be applied to doing sth./be adapted to/适应做某事
2,see to doing sth 负责做某事
3 stick to doing sth坚持做某事
4，get down to doing sth着手做某事5，5，be/get/becom used to doing sth 习惯于做某事
6，be related to doing sth与做某事…有关系=be connected to doing sth
7，be addicted to doing sth沉溺于做某事;对做某事…上瘾
8，be opposed to doing sth=object to doing sth 反对做某事
9，devote oneself to doing sth献身于做某事;专心于做某事=be devoted to doing
10，be admitted to 被…录取;准进入
11，be reduced to 沦为=reduce…to…使…沦为
12，be attached to附属于;喜欢;依恋
13，be known to 为…所知
14，be /get married to 和…结婚
15，be sentenced to被判处
16，be exposed to 暴露于;遭受
17，be compared to 被比喻成
18，be engaged to 与…订婚
19，lead to 导致，通往
20，put one’s mind to全神贯注于(=fix one's eyes on=concentrate on)
21，look forward to doing sth盼望做某事
22，pay attention to doing sth 注意做某事
23，attend to 专心;注意;照料
23，see to 负责;注意
24，contribute to对…作贡献;有助于=make contributions to对…作贡献
25，reply to 回答
26，add ...to 把...加到
27，add up to 加起来总和是
28，in addition to除…之外
29，turn to转向;求助于
30，look up to 尊敬
31，belong to 属于
32，respond to 回答;对…作出回应
33，prefer doing… to doing…与做某事相比更喜欢做
34，set an example to 给…树立榜样
35，refer to 谈到;参考;查阅
36，agree to sth. 同意某事(比较:agree to do sth. 同意做某事)
37，join…to…把…和…连接起来
38，show honor to向…表示敬意
39，put an end to(bring… to an end) 结束
40，set fire to 放火烧……
41，drink (a toast) to 为……干杯