Help 后面不加to,直接是 help do sth.（To 在这里是省略的）
注意是a不是an.搭配对.have the right to do sth有权力做某事.have the right over sth对某物有所有权
require to do 命令做 必须做
require sb to do 要求某人做某事
都可以...意思不同
there be 句型中,sth to do 是一种常见表达法,其中不定式做sth的定语,也可用to be done,但主动形式更常见.
depend on sb 是依耐某人
Children depend on their parents for food and clothing.
小孩依赖他们的父母供给衣食.
depend on sb.to do sth.只是一个搭配,可以用.不是什么短语.
意思是 我们相信你能做某事
We are depending on you to finish the paper by Friday.
我们相信你在星期五之前可以完成这篇论文.
Do 的常见搭配有：
do away with
摆脱；废除,取消,杀死
do down
诽谤,诋毁
do for
照料 设法弄到,如：do for water设法搞到水
done for 精疲力竭
do in
伤害,杀害 累得很；很累
如：That walk was much too long,and nearly did me in.
那回走得太长了,我累得几乎要死.
do out
收拾,打扫；整理
do out of
抢劫；骗走,骗去
do up
修理；修补 系上；扣上 如：Do up your buttons.
系上你的扣子.
再如：to do up the house
修理房屋
do with
（前面与could,can连用）需要
如：
I could do with a cup of tea.
我来杯茶就行.
有关系
have sth.to do with
和…有关系
have nothing to do with
和…没有关系
习惯用语
make do with sth.凑合用,将就 (= make do)
That will do!行了,够了!
习惯用语
dos and don'ts 行为准则；须知
1.enjoy doing
2.let sb do
3.busy on
4.arrive in(指大地点)
5.arrive at(指小地点)
6.busy with
7.talk about
8.look sb doing
9.forget to do/doing
10.remember to do/doing
11.try to do/doing
12.get to do/doing
13.see sb do/doing
14.regret to do/doing
1.help sb (to) do sth
2.enjoy doing sth
3.let\make\have sb do sth
4.it is+形容词+for sb to do sth
5.perfer doing sth
6.cheer sb on
7.pian to do sth
8.be good at =do well in
9.be good for
10.be afraid of
11.try\do one's best to do sth
12.have fun doing sth
13.tell\ask sb (not) to do sth
14.be fond of doing sth
15.spend time\money on sth\doing sth
