offer to do sth. 主动提出做某事
请看经典例句：
She offered to settle a legacy on Katharine.
她（主动）提出要把一笔遗产留给凯瑟琳。
legacy /ˈleɡəsi/
n.遗产；遗留；后遗症；遗赠财物
Philip pledges support and offers to help in any way that he can
菲利普保证给予支持，并主动提出尽其所能提供帮助。
pledge/pledʒ/
n.保证；抵押；誓言；诺言；抵押品；誓约；质钱
v.使保证；抵押；使发誓；典当；保证给予(或做)；正式承诺；宣誓参加美国大学生联谊会
He didn't offer to see her to her car
他没有（主动）提出要陪她去取车。
She offered to teach me to crochet
她提出要教我钩织东西。
crochet /kroʊˈʃeɪ/
n.钩针；钩针编织
v.用钩针编织
Peter offered to teach them water-skiing
彼得主动提出教他们滑水。
A huckster offered to sell Carnegie the formula for guaranteed success for$ 20,000.
一名骗子推销员提出以两万美元的价格卖给卡内基一张保证成功的秘方。
huckster /ˈhʌkstər/
n.强行推销的人；沿街叫卖的小贩；上门推销员
v.讨价还价；强行推销；吹嘘
The kids offered to do the dishes.
孩子们主动要求洗盘子。
If a neighbor is going to be out of town, offer to collect mail and newspapers ．
如果邻居要出城,主动提出帮他收信和报纸。
Peter offered to teach them water-skiing.
彼得主动提出教他们滑水。
Would she take it amiss if I offered to help?
我要是主动提出帮助，她会不会见怪？
Several people were passing but nobody offered to help.
有几个人擦肩而过，却没有人主动提出帮助。
They were very obliging and offered to wait for us.
他们非常热情，主动提出等候我们。
obliging /əˈblaɪdʒɪŋ/
adj.乐于助人的；热情的
oblige v.(以法律、义务等)强迫，迫使；(根据要求或需要)帮忙，效劳
oblige的现在分词
I offered to give them a lift but they declined.
我主动邀请他们搭车，但他们婉言谢绝了。
As if in answer to our prayers, she offered to lend us £ 10 000.
好像祈祷很灵验似的，她提出借给我们1万英镑。
He offered to ferry us across the river in his boat.
他提出坐他的船把我们渡过河。
ferry /ˈferi/
n.渡船；摆渡
v.渡运；摆渡
You're not telling me he offered to lend you the money out of the goodness of his heart?
你该不是说他是纯粹出于好心主动借钱给你的吧？
Gerry offered to partner me at tennis.
格里提出和我搭档打网球。
partner/ˈpɑːrtnər/
n.伙伴；合伙人；搭档；配偶；同伴；性伴侣；舞伴
vt.(在跳舞、游戏等中)结成伙伴，做搭档，配对
I don't speak Greek so Dina offered to translate for me.
我不懂希腊语，于是迪娜主动给我翻译。
He finally corrected his misstatement and offered to reduce the fee
他终于纠正了自己的错误说法，提出要减少费用。
The firm offered to give her a reference.
公司主动给她开具介绍信。
reference /ˈrefrəns/
n.参考，参照，查阅；（方便查询的）编号，标记，索引；关系，关联；（关于入学、谋职、信贷申请人品行、能力等情况的）查询；谈到，论及；提交仲裁，委托处理；（帮助或意见的）征求，征询；参考书目；（求职等时的）推荐人，介绍人，证明人；介绍信，推荐信；引文，引用的观点，参考章节，引证；（词与其所指对象之间的）相互关系，（词的）所指意义
vt.提及；附（图表、资料等）以供参考；在（著作）末尾附加参考资料；提出或引用……作参考
adj.参考的，参考用的；基准的，可作基准的
The Foreign Office offered to pay the shipping line all the costs of diverting the ship to Bermuda.
外交部愿意向海运公司支付将该船改道至百慕大的一切费用。
divert /daɪˈvɜːrt/
vt.转移；使转向；使绕道；娱乐；转移(某人)的注意力；使分心；改变(资金、材料等)的用途
He had kindly offered to loan us all the plants required for the exhibit
他善解人意地提出愿意把展览需要的植物通通借给我们。
loan /ləʊn/ n.贷款；借款；贷给；被借出；借出
vt.借出，贷与(尤指钱)；出借(贵重物品给博物馆等)
She went to her doctor, who offered to put her on a course of tranquillizers.
她去看医生，医生建议她服用一个疗程的镇静剂。
tranquillizer /ˈtræŋkwəlaɪzər/
n.镇静剂；安定药
The authorities offered to stop firing missiles if the rebels agreed to stop attacking civilian targets.
当局表示，如果叛乱分子答应停止攻击平民目标，就不再发射导弹。
missile /ˈmɪsaɪl/ n.〈军〉导弹，飞弹，弹道导弹；发射物，投掷物
adj.（关于）导弹的；可投射的；用以发射导弹的
The kind old lady offered to take in the poor homeless stranger.
那位好心的老太太愿意收容这个贫困无家可归的陌生人。
He offered to stand as a drink.
他说他要请我们饮酒。
类似接不定式(不接动名词)作宾语的常用动词
afford to do sth. 负担得起做某事
agree to do sth. 同意做某事
arrange to do sth.安排做某事
ask to do sth. 要求做某事
beg to do sth. 请求做某事
care to do sth. 想要做某事
choose to do sth. 决定做某事
decide to do sth. 决定做某事
demand to do sth. 要求做某事
determine to do sth. 决心做某事
expect to do sth. 期待做某事
fear to do sth. 害怕做某事
help to do sth. 帮助做某事
hope to do sth. 希望做某事
learn to do sth. 学习做某事
manage to do sth. 设法做某事
offer to do sth. 主动提出做某事
plan to do sth. 计划做某事
prepare to do sth. 准备做某事
pretend to do sth. 假装做某事
promise to do sth. 答应做某事
refuse to do sth. 拒绝做某事
ant to do sth. 想要做某事
wish to do sth. 希望做某事
注：有些不及物动词后习惯上也接不定式，不接动名词：
aim to do sth. 打算做某事
fail to do sth. 未能做某事
long to do sth. 渴望做某事
happen to do sth. 碰巧做某事
hesitate to do sth. 犹豫做某事
struggle to do sth. 努力做某事