核心口诀：to后doing=to是介词；to后原形=to是不定式
Part1 介词to+doing（必考最高频）
look forward to doing 期待做……
pay attention to doing 注意做……
stick to doing 坚持做……
devote…to doing 致力于；献身于
be devoted to doing 致力于
contribute to doing 促成；有助于；导致
lead to doing 导致……
get down to doing 开始认真做……
object to doing 反对做……
be opposed to doing 反对做……
be used to doing 习惯于做……
be accustomed to doing 习惯于做……
adjust to doing 适应做……
be adapted to doing 适应做……
prefer doing A to doing B 比起A更喜欢做B
admit to doing 承认做过……
confess to doing 坦白承认做过……
turn to doing 转向；求助于……
be equal to doing 胜任；等于
be addicted to doing 沉迷于……
resort to doing 诉诸；采取……
subscribe to doing 赞同；订阅
give way to doing 让位于；屈服于
yield to doing 屈服；让步
bow to doing 屈服于
be reconciled to doing 甘心接受
prior to doing 在……之前
in addition to doing 除……之外
when it comes to doing 当谈到……
介词to+名词（必背固定搭配）
the key to… ……的关键
the answer to… ……的答案
the solution to… ……的解法
the entrance to… ……的入口
access to… 使用权；通道
a reply to… ……的答复
attitude to… 对……的态度
damage to… 对……的损害
preference to… 偏爱
特殊固定搭配
owing to 由于
thanks to 多亏
agree to sth 同意某事
Part2 不定式：动词+to do
want to do 想要做
hope to do 希望做
wish to do 希望做
decide to do 决定做
plan to do 计划做
prepare to do 准备做
agree to do 同意做
refuse to do 拒绝做
promise to do 承诺做
offer to do 主动提出做
learn to do 学习做
choose to do 选择做
fail to do 未能做成
manage to do 设法做成
pretend to do 假装做
afford to do 负担得起做
expect to do 期待做
happen to do 碰巧做
seem to do 似乎做
appear to do 好像做
tend to do 倾向于做
intend to do 打算做
attempt to do 尝试做
hesitate to do 犹豫做
dare to do 敢于做
threaten to do 威胁要做
long to do 渴望做
strive to do 努力做
seek to do 试图寻求
undertake to do 承诺；承担
arrange to do 安排做
resolve to do 决心做
guarantee to do 保证做
swear to do 发誓做
neglect to do 疏忽忘记做
omit to do 遗漏没做
Part3 不定式：动词+sb+to do
ask sb to do 要求某人做
tell sb to do 告诉某人做
order sb to do 命令某人做
warn sb to do 警告某人做
invite sb to do 邀请某人做
encourage sb to do 鼓励某人做
advise sb to do 建议某人做
allow sb to do 允许某人做
permit sb to do 准许某人做
forbid sb to do 禁止某人做
force sb to do 强迫某人做
get sb to do 使某人做
want sb to do 想要某人做
expect sb to do 期望某人做
remind sb to do 提醒某人做
require sb to do 要求某人做
request sb to do 请求某人做
persuade sb to do 说服某人做
urge sb to do 力劝某人做
command sb to do 命令某人做
cause sb to do 致使某人做
drive sb to do 迫使某人做
lead sb to do 使某人做
ask sb not to do 要求某人不要做（否定）
Part4 不定式：be+形容词+to do
be glad to do 很高兴做
be happy to do 开心做
be sorry to do 遗憾；抱歉做
be surprised to do 惊讶做
be afraid to do 害怕做
be ready to do 准备好做
be willing to do 愿意做
be eager to do 渴望做
be anxious to do 急于做
be able to do 能够做
be unable to do 不能做
be likely to do 可能做
be sure to do 一定会做
be certain to do 一定会做
be lucky to do 幸运做
be proud to do 自豪做
be determined to do 决心做
be reluctant to do 不情愿做
be slow to do 迟迟不做
be quick to do 很快做
必考不定式句型
It takes sb+时间+to do 花费某人时间做某事
It’s+adj.+for sb to do 对某人来说做某事……
It’s+adj.+of sb to do 某人做某事很……（品质）
too…to do 太……而不能……
…enough to do 足够……去做……
only to do 结果却（意外）
in order to do 为了做
so as to do 为了做
Part5 不定式：名词后to do
a chance to do 做……的机会
a way to do 做……的方法
a plan to do 做……的计划
an ability to do 做……的能力
a decision to do 做……的决定
a desire to do 做……的渴望
a wish to do 做……的愿望
a promise to do 做……的承诺
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