it is+adj./n. +for/of sb. +to do sth. 对某人来说/某人做某事是……
for sb.通常表示客观情况的形容词 difficult easy important impossible necessary dangerous
of sb. 通常表示主观情感或态度的形容词 careful kind nice wise clever honest impolite
it take(sb.)+时间+to do sth. 做某事花费（某人）时间
it is/was no/not any/of little good+doing sth. 做某事没有好处
it is/was useless/no use/of little use+doing sth. 做某事没有什么用处
it is/was a waste of tome+doing sth. 做某事浪费时间
to do/doing做宾语
只能用to do
would like would love would prefer decide fail determine learn want expect hope wish refuse manage pretend agree strive
特殊疑问词+to do why+do
只能用doing
suggest postpone look forward to avoid miss keep partise appreciate can′t help can′t imagine allow escape consider advice admit delay forbit prohibit deny finish enjoy mind permit discuss risk prevent be used to lead to devote to stick to object to get down to pay attention to to是介词+doing
can′t stand give up feel like insist on keep on put off thank you for apologize for be busy in
have different/trouble in have a good/wonderful/hard time in spend 时间金钱
即可接to do(没做)又可接doing (做了)
forget to do 忘记做 forget doing 忘记已经做过
regret to do后悔未做 regret doing 后悔做过
stop to do 停下来做另一件事 stop doing 停止做一件事
go on to do 昨晚某事接着做另一件事 go on doing 继续做同一件事=go on with sth.
try to do 努力去做 try doing 尝试去做
mean to do 打算做 mean doing 意味着
can't help to do 不能帮助做 can't help doing 情不自禁地做
allow advice forbit permit doing sth.(doing做宾语)
allow advice forbit permit sb. to do sth.(to do 做宾补)
sth. +need require want +doing/to be done
need require want sb. to do sth.
worth worthy worthwhile用法
be worth sth.值得…价值…
be worth doing sth. 值得被…
be worthy of sth./doing sth. 值得…
be worthy to be done 某事值得被…
it be worthwhile to do sth.…是值得的
to do在介词but other than后时介词前有实义动词用do 无实义动词用to do
can't choose but/can't help but/can't but 后直接跟do
doing done 作表语
物用ing译为令人…的 人用ed译为感到…的
doing to do done作宾补
感官动词see watch notice observe hear和使役动词have let make后宾补三种形式
注意：get sb.to do sth.让某人去做某事
get sth. done 让某事被做
keep sb./sth. doing 让某人/物持续做
keep sb./sth. done 让某人/物被做
do 主动且完成
doing 主动且进行
done 被动且完成
leave后跟三种形式作宾补应译为“使…处于某种状态”
leave sb./sth. doing sth 主动进行 让某人一直
leave sb./sth. undone被动完成 留下某事未被做（常见词汇undone unfinished unsettled untouched）
leave sb. to do sth. .留下某人做某事
leave sth. to be done 不定式表将来 留下某事要被做
只跟to do 作宾补
advice allow ask beg cause encourage except force get intend forbit permit invite like love order persuade require teach tell want wish think wait for call on depend on
to do doing done 作定语
to do 作后置定语
to do 表主动将来 to be done 表被动将来
用来修饰被序数词，最高级，no all any等限制的中心词
一些抽象的名词通常在其后用to do作定语：ability chance promise reply attempt way reason time idea fact excuse answerbelief moment
目的状语（表将来）注：强调to do 表目的或需要表否定目的，也可用in order(not)to/so as(not)to(以便，为了做/ 不做)的结构，so as to 不用于句首
结果状语 only to do 表主动，出乎意料的事情
only to be done 表（逻辑主语）被动出乎意料
结果状语也可用so…as to,such…as to,too…to,enough…to等结构表示
原因状语 to do作原因状语通常与表示喜怒哀乐，运气好坏的形容词或动词连用
doing done 做状语
形式：
doing 主动，与句中谓语动词基本上同时发生
having done 主动，发生与谓语动词之前（时间)
done 被动，与句中谓语动词同时发生或先于谓语动词发生
having been done 被动，发生与句中谓语动词之前（时间）
结构：
———，一句子（五大简单句），一句子（五大简单句），———
表时间状语 当主句的主语一致时，可以省略从句中的主语和be动词
表原因状语
表条件状语
表让步状语
表结果状语
表伴随状语
独立成分作状语
generally speaking一般来说
frankly speaking坦白地说
to be Frank 坦白地说
judging from根据…判断
to tell you the truth 说实话
to be honest 说实话
