letter to industry_Offset and SFN handling_Final12Jan09

To Industry

12 January 2009

Equipment compatibility with the UK DTT network

?UHF Channel Offsets and 8K COFDM

?Receiving from more than one transmitter

?Single Frequency Networks (SFNs)

Dear Colleague

The successful Selkirk transmitter group switchover (Selkirk) revealed issues with some products’ handling of digital terrestrial transmissions in the Scottish Borders region. With 14 areas switching to digital in 2009, Digital UK needs to establish that other legacy and current digital terrestrial TV (DTT) products will not face the same or related issues in the West Country, Border, Wales and Granada regions in order to provide the best advice.

1.Firstly, some models were unable to handle a combination of an 8K COFDM

(Coded orthogonal frequency division multiplexing) transmission mode with a

negative offset applied to UHF channels. This was subsequently resolved via an

over-air download using Mux B/BBC-B capacity.

Offset frequencies, in either negative or positive form, are used in some areas to

minimise interference between adjacent UHF channels and have already been

deployed in the existing 2K COFDM UK DTT network as well as other countries.

They will be again as this country upgrades to 8K mode on a region by region basis

(subject to Ofcom approval). The UK offsets operate at fixed frequency values of

+/-0.167MHz as per the table at the end of this letter.

The negative and positive offsets form part of the DVB-T standard and therefore

any UK DTT model should support their potential use on any UHF channel. This is

also expected to extend to High definition HD-DTT models built on the DVB-T2

standard.

Any DTT product registered for the approved product logo (opposite) must comply with the DVB standard and Digital TV Group’s (DTG) D-Book and again should support use of positive or negative UHF offsets.

This is also a necessary part of Freeview and Freeview+ logo accreditation.

2.Some householders in transmitter overlap areas experienced problems displaying

services due to their digital receiver not complying with D-Book guidelines and

storing weak signals from an adjacent relay rather than the stronger Selkirk main

transmitter signals that were broadcast higher up the UHF band.

The overlap issue is not specific to Selkirk and is set to appear in all subsequent

switchover regions, in one of three key forms:

DUPLICATES: reception from two masts in the same transmitter group.

REGIONAL: reception from two masts in different transmitter groups (e.g. Wales services from Wrekin and England services from Mendip; Central and Anglia)

COUNTRIES: potential reception from two masts in different networks, notable example being Irish DVB-T MPEG4 services and English DVB-T MPEG2 services. This will depend on how the Nordig specification for Ireland develops in conjunction with products’ abilities to handle MPEG4. (e.g. Some UK IDTVs are understood to have silicon capable of handling either MPEG2/MPEG4 or are based on a chassis that has been used for France.)

The overlap effect on the consumer may differ depending on where the wanted services reside on UHF channels. As an example for some cases the desired strong transmissions may be lower in the UHF band but could then get overwritten by a weaker duplicate

further up the scale.

3.Looking forward, we also need to establish how DTT equipment will respond to the

adoption of single frequency networks (SFNs). The Beacon Hill transmitter group is next to switch in April 2009 and will see the West Country as the first region to deploy an SFN.

Selkirk highlighted how Digital UK’s advance communication of a 2K only equipment list (see https://www.sodocs.net/doc/0516024187.html,/2kequipment ) played a key role in minimising consumer calls to its own and manufacturers’ call-centres, plus helped limit demands on manufacturers for replacement products or refunds. We want to build on this experience and log how DTT equipment will respond to each of the three issues above.

Please could you complete the form below as soon as possible (by 30January 2009 latest) and return it to me via email david.harby@https://www.sodocs.net/doc/0516024187.html, or fax on 0207 462 5440.

The request is welcomed and supported by Intellect, DTG and Freeview see below.

If you have any issues or further questions, please do not hesitate to email or call me on 07976 125193.

I look forward to receiving your response.

Yours Sincerely

Signed

Date: 12 January 2009

David Harby

Head of Product

Digital UK

ENDORSEMENT

We welcome this initiative and recommend our members' and partners’ support. The requirements are also a necessary part of Freeview and Freeview+ logo accreditation:

Signed:

Laurence Harrison

Director – Consumer Electronics Intellect, Russell Square House 10-12 Russell Square London. WC1B 5EE

Tel: 0207 331 2000 Fax: 0207 331 2040 Mobile: 07799 625529

email: laurence.harrison@https://www.sodocs.net/doc/0516024187.html,

Signed:

Richard Lindsey Davies Director General Digital TV Group No1, Nine Elms Lane Vauxhall

London SW8 5NQ

Tel: +44 (0)20 7501 4350 Fax: +44 (0) 207 501 4399 Mob: +44 (0)78 8078 3044 Email: rdavies@https://www.sodocs.net/doc/0516024187.html,

Signed:

Andy Holmes

Head of Relationship Management

Freeview

27-29 Cursitor Street London EC4A1LT

Tel: 020 7269 0875

Mob: 07740 634 748

Email: andy.holmes@https://www.sodocs.net/doc/0516024187.html,

todo与doing的区别

--- to do与doing的区另U 一般情况下，to do 是一般将来式,是打算去做什么（未做）;doing是现在进行式,是现在正在做什么，或（此事已做过或已发生、正做） like to do 和like doing 的用法有什么区别 简单的记忆方法。当表示喜欢，用like doing ，如：He likes cooking in his house. She likes singing. 表示爱好。 当表示想要，欲做某事（但还没进行）用like to do ，例如：He likes to cook in his house.- 他想在自己家做饭吃。 She likes to stay with us.- 她想和我们带一块儿。（但还没进行） 2 forget doin g/to do forget to do 忘记要去做某事。（未做） forget doing 忘记做过某事。（已做） The light in the office is stil on. He forgot to turn it off. 办公室的灯还在亮着，它忘记关了。（没有做关灯的动作） He forgot turning the light off. 他忘记他已经关了灯了。（已做过关灯的动作） Don't forget to come tomorrow. 别忘了明天来。（to come动作未做） 3 remember doin g/to do remember to do 记得去做某事（未做） remember doing 记得做过某事（已做） Remember to go to the post office after school. 记着放学后去趟邮局。 Don't you remember see ing the man before? 你不记得以前见过那个人吗？ 感官动词 see, watch, observe, notice, look at, hear, listen to, smell, taste, feel +doing表示动作的连续性，进行性 I saw him working in the garden yesterday. （强调”我见他正干活”这个动作） 昨天我见他正在花园里干活。

todoanddoing用法

加to do 的动词 attempt企图enable能 够 neglect忽视afford负担得 起 demand要求long渴 望 arrange安排destine注 定 mean意欲，打算begin开 始 expect期望omit忽略，漏 appear似乎，显得determine决定manage设 法cease停止 hate憎恨，厌恶pretend假装 ask问dread害 怕 need需要agree同 意

desire愿望love 爱 swear宣誓volunteer志愿 wish希望bear承 受 endeavor努力offer提 供 beg请求fail不 能 plan计划 bother扰乱；烦恼forget忘 记 prefer喜欢，宁愿care关心，喜欢happen碰 巧prepare准 备decide决 定learn学 习 regret抱歉，遗憾choose选择hesitate犹 豫profess表明

claim要求hope希 望 promise承诺，允许start开始undertake承 接want想要 consent同意，赞同intend想要refuse拒 绝decide决定 learn学习vow起contrive设法，图谋incline有…倾向propose提议seek 找，寻觅 try试图 2)下面的动词要求不定式做宾补：动词+宾语+动词不定式 ask要求，邀请get请，得 到 prompt促使allow允 许 forbid禁止prefer喜欢，宁愿announce宣 布force强

迫 press迫使bride 收 买 inspire鼓舞request请求 assist协助hate憎 恶 pronounce断定，表示advise 劝告exhort告诫，勉 励pray请求 authorize授权，委托help帮 助recommend劝告，推荐bear容 忍implore恳 求remind提醒 beg请求induce引 诱 report报告compel强 迫 invite吸引，邀请，summon传 唤command命 令intend想要，企

常见的todo与doing

常见的“to do”与“doing”现象 有些动词后既可接to do，也可接doing，它们后接to do与doing在意思上有时有较大的差别。因为它们也是中考的常考点之一，因而我们应该搞清楚它们的区别。 1. stop to do/stop doing sth。 解析：stop to do sth.意为“停下来（正在做的事）去做（另外的）某事”，to do sth.在句中作目的状语。而stop doing sth.意为“停止做（正在做的）某事”。如Mary stopped to speak to me.玛丽停下（手头的工作）来跟我讲话。 When the teacher came in. the students stopped talking.老师进来时，学生们停止讲话。 2. remember to do/remember doing sth 解析：remember to do sth.意为“记住要去做某事”（还没有做）。而remember doing sth.意为“记得（已经）做过某事”如： Please remember to send the letter for me.请记住为我发这封信。 I don’t remember eating such food somewhere.我不记得在哪里吃过这种食物 3. forget to do/forget doing sth 解析：forget to do sth.意为“忘记做某事”（动作还没有发生）。而forget doing sth.意为“忘记做过某事”（动作已发生）。如： Don’t forget to bring your photo here.别忘了把你的相片带来。 I have forgotten giving the book to him.我忘记我已把书给了他。 4. go on to do/go on doing sth 解析：go on to do sth.意为“做完一件事，接着做另外一件事”，两件事之间有可能有某种联系。而go on doing sth.意为“继续做下去”。如： After reading the text, the students went on to do the exercises.学生们读完课文后，接着做练习。 It’s raining hard, but the farmers go on working on the farm.虽然天正下着大雨，但农民们继续在农场干活。 5. try to do/try doing sth 解析：try to do sth.意为“尽力去做某事”，而try doing sth.意为“（用某一种办法）试着去做某事”。如： Try to come a little early next time, please.下次请尽量早点来。 You can try working out the problem in another way.你可以试试用其它的方法解答这道题目。 6. can’t help to do/can’t help doing sth 解析：can’t help to do为动词不定式结构；can’t help doing sth.意为“身不由己地去做某事”或“情不自禁地去做某事。”如： We can’t help to finish it.我们不能帮忙完成此事。 I couldn’t help laughing when I saw her strange face.当我看到她奇怪的脸时，我情不自禁地笑了。 7. hear sb. do/hear sb. doing sth 解析：hear sb. do sth.意为“听见某人做某事”，指听到了这个动作的全过程；hear sb. doing sth.意为“听到某人做某事”，指听到时候，这个动作正在发生。如： I often hear him sing in the classroom.我经常听见他在教室里唱歌。 Do you hear someone knocking at the door?你听见有人在敲门吗？ 应该说明的是：和hear的用法一样的还有see、watch、notice等。

todo和doing的差别

To do 和 doing的用法 1. finish, enjoy, feel like, consider, imagine, keep, postpone, delay, mind, practise, suggest, risk, quit+doing 2. 1）forget to do 忘记要去做某事（此事未做） forget doing忘记做过某事（此事已做过或已发生） 2）stop to do 停止、中断（某件事），目的是去做另一件事 stop doing 停止正在或经常做的事 3）remember to do 记住去做某事（未做） remember doing记得做过某事(已做) 4) regret to do对要做的事遗憾 regret doing对做过的事遗憾、后悔 5）try to do努力、企图做某事 try doing试验、试一试某种办法 6) mean to do打算，有意要… mean doing意味着 7）go on to do 继而（去做另外一件事情） go on doing 继续（原先没有做完的事情） 8）propose to do 打算（要做某事） proposing doing建议（做某事） 9) like /love/hate/ prefer +to do 表示具体行为；+doing sth 表示抽象、倾向概念 （注)如果这些动词前有should一词，其后宾语只跟不定式，不能跟动名词。例如： I should like to see him tomorrow． 10) need, want, deserve +动名词表被动意义；+不定式被动态表示“要(修、清理等)”意思。 Don’t you remember seeing the man before你不记得以前见过那个人吗 You must remember to leave tomorrow．你可要记着是明天动身。 I don’t regret telling her what I thought．我不后悔给她讲过我的想法。(已讲过) I regret to have to do this， but I have no choice．我很遗憾必须这样去做，我实在没办法。(未做但要做) You must try to be more careful．你可要多加小心。 Let’s try doing the work some other way．让我们试一试用另外一种办法来做这工作。 I didn’t mean to hurt your feeling．我没想要伤害你的感情。 This illness will mean (your) going to hospital．得了这种病(你)就要进医院。 3.省to 的动词不定式 1）情态动词 ( 除ought 外，ought to)： 2）使役动词 let, have, make： 3）感官动词 see, watch, look at, notice , observe, hear, listen to, smell, feel, find 等后作宾补，省略to。 注意：在被动语态中则to 不能省掉。 I saw him dance.

doing,todo,do的用法

一．To do形式 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 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 want to do sth. 想要做某事 wish to do sth. 希望做某事 happen to do sth. 碰巧做某事 struggle to do sth. 努力做某事 advise sb. to do sth. 建议某人做某事allow sb. to do sth. 允许某人做某事 ask sb. to do sth.请（叫）某人做某事bear sb. to do sth.忍受某人做某事 beg sb. to do sth. 请求某人做某事cause sb. to do sth. 导致某人做某事command sb. to do sth. 命令某人做某事drive sb. to do sth .驱使某人做某事elect sb. to do sth. 选举某人做某事encourage sb. to do sth. 鼓励某人做某事expect sb. to do sth. 期望某人做某事forbid sb. to do sth. 禁止某人做某事force sb. to do sth. 强迫某人做某事 get sb. to do sth. 使（要）某人做某事hate sb. to do sth. 讨厌某人做某事 help sb. to do sth. 帮助某人做某事

初中日·总复习英语动词+doing和+todo用法

识记:初中英语非谓语动词总结（中考常考） 记住：动词后面加动名词表示已经做了；加动词不定式表示将要去做。 记住：动词后面加动名词表示经常做；加动词不定式表示一次做。 * *跟动词原形的词有：“一感二听三让四看”，即：feel, // hear, listen to, // let, make, have,// look at, see, wact notice.// 一．后面可跟动词的ing形式的情况。 1.动词：*以下记住每一个词组的第一个动词。 finish doing sth.完成做某事；enjoy doing sth. 喜欢做某事； practice doing sth. 练习做某事；imagine doing,想象做某事； avoid doing sth.避免做某事；consider doing sth.考虑做某事； suggest doing sth.建议做某事；mind doing sth.介意做某事； * keep doing sth.持续做某事, miss doing错过做, advise doing建议做；* keep sb doing让某人一直做 2.固定短语： feel like doing sth.喜欢做某事；be busy doing sth.忙于做某事； be worth doing 值得做某事；spend time (in) doing sth.花费时间（金钱）做某事； have difficult/trouble in doing sth做某事有困难；have fun doing.做某事高兴 3. 介词后(on, in, of, about, at, with, without, for, from, up, by等)： 如：be good at doing sth.；thank you for doing sth.；give up doing sth.；stop sb. from doing sth.；do well in do sth.； be afraid of doing sth.；be interested in doing sth.；be proud of；instead of；be fond of；what/how about doing sth?某事怎么样？ 4. to作介词时，后跟动名词的情况： look forward to doing sth期望做某事；prefer doing sth. to doing sth与…相比较更喜欢…； pay attention to doing注意做某事；be/get used to doing sth.习惯于做某事； make a contribution to doing为…做贡献 No+动名词，表示禁令No smoking禁止吸烟No parking禁止停车 5. go+动名词，意思是去进行某种活动或运动： go shopping,去购物；go skating,去滑冰；go hiking去远足（旅行） 6. do some/the+动名词，指进行某种活动： do some cleaning,搞卫生；do some washing 洗衣服； 二．后面可跟动词的不定式形式的情况。 1.动词：不需要记住哪些动词后跟动词不定式。 2.句型：(1)动词： allow sb. to do sth. 允许某人去做某事（区分allow doing sth） ask sb. (not) to do sth. 叫某人做事某事（叫某人不要去做某事） tell sb. (not) to do sth. 叫某人去（不要）做某事follow sb. to do sth. 跟随某人去做某事 get sb. to do sth. 让某人去做某事warn sb. (not) to do sth. 警告某人做某事（或不要做某事） encourage sb to do鼓励某人做、expect sb to do期待某人做 invite sb to do邀请某人做、teach sb to do教会某人做 advise sb to do建议某人做（区分advise / suggest doing sth） (2) Be+形容词adj.（即：情感类的形容词）+ to do

动词todo与doing的用法区别

一、接不定式（而不接动名词） 1.作宾语的24个常用动词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. 选择做某事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. 承诺做某事refuse to do sth. 拒绝做某事want 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2.作宾补的36个常用动词advise sb. to do sth. 建议某人做某事 allow sb. to do sth. 允许某人做某事

动词不定式todo和doing

动词不定式to do 和doing 首先是加to do 的动词 attempt企图enable能够neglect忽视 afford负担得起demand要求long渴望 arrange安排destine注定mean意欲，打算 begin开始expect期望omit忽略，漏 appear似乎，显得determine决定manage设法 cease停止hate憎恨，厌恶pretend假装 ask问dread害怕need需要 agree同意desire愿望love爱 swear宣誓volunteer志愿wish希望 bear承受endeavor努力offer提供 beg请求fail不能plan计划 bother扰乱；烦恼forget忘记prefer喜欢，宁愿 care关心，喜欢happen碰巧prepare准备 decide决定learn学习regret抱歉，遗憾 choose选择hesitate犹豫profess表明 claim要求hope希望promise承诺，允许 start开始undertake承接want想要 consent同意，赞同intend想要refuse拒绝 decide决定learn学习vow起 contrive设法，图谋incline有…倾向propose提议 seek找，寻觅try试图 下面的动词要求不定式做宾补：动词+宾语+动词不定式 ask要求，邀请get请，得到prompt促使 allow允许forbid禁止prefer喜欢，宁愿 announce宣布force强迫press迫使 bride 收买inspire鼓舞request请求 assist协助hate憎恶pronounce断定，表示 advise劝告exhort告诫，勉励pray请求 authorize授权，委托help帮助recommend劝告，推荐bear容忍implore恳求remind提醒 beg请求induce引诱report报告 compel强迫invite吸引，邀请，summon传唤 command命令intend想要，企图show 显示 drive驱赶mean意欲，打算train训练 cause引起instruct指示require要求 deserve应受leave使，让tell告诉 direct指导like喜欢tempt劝诱 entitle有资格order命令warn告诫

初中英语动词+todo和+doing的用法

去游泳、钓鱼、逛街、滑冰、划船初中三年全部英语动词+doing 和+to do 句型全汇总！ 在初中英语学习中，想要取得高分语法和单词这两座 大山一定要过，今天分享的是初中英语最常考全部英语 动词 +doing 和 +to do 的总结，同学们可以抽时间 好好记熟这 些，千万别再弄混了。 一、带动词ing 形式 1.keep doing 坚持做某事 2.keep sb. doing 使某人一直做某事 3.practise doing sth.练习做某事 4.enjoy doing 喜欢做某事 5.finish doing 完成做某事 6.be afraid of doing 害怕做某事 be busy doing 忙于做某事 7. look forward to doing 盼望做某事 8. how about doing 、 ./what about doing 做某 事怎么样 9.spend some time (in)doing 花时间做某事 10.spend some money (in) buying 花钱做某事 11.feel like doing 想做某事 12.stop/keep/prevent ? from doing 阻止某人做某事 13.thank sb for doing 感谢某人做某事 14.thanks for doing 感谢做某事 15.do some cooking/cleaning/reading/shopping/wa shing 做点饭、打扫一下卫生、读点书、逛逛街、洗洗衣服 16. go swimming/fishing/shopping/skating/boating

英语todo和doing的固定短语

英语to do和doing的固定短语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

want 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 二、接不定式作宾补的36个常用动词 advise sb. to do sth. 建议某人做某事 allow sb. to do sth. 允许某人做某事 ask sb. to do sth.请（叫）某人做某事 bear sb. to do sth.忍受某人做某事 beg sb. to do sth. 请求某人做某事 cause sb. to do sth. 导致某人做某事 command sb. to do sth. 命令某人做某事 drive sb. to do sth .驱使某人做某事 elect sb. to do sth. 选举某人做某事 encourage sb. to do sth. 鼓励某人做某事 expect sb. to do sth. 期望某人做某事 forbid sb. to do sth. 禁止某人做某事 force sb. to do sth. 强迫某人做某事

总结todo或doing用法

总结动词后加to do/doing的短语搭配 一.含有ing句型 1. keep doing 2. keep /carry on doing 3. keep sb. Doing 4. enjoy doing 5. finish doing 6. be afraid of doing 7. be worth doing 8. be busy doing 9. how about doing//what about doing 10. spend some time (in)doing 11. spend some money (in) buying 12. feel like doing 13. stop/keep/prevent …from doing 14. thank you for doing 15. thanks for doing 16. do some cooking/cleaning/reading/shopping/washing 17. go swimming/fishing/shopping/skating/boating 18. mind doing 19. prefer doing …to doing…

20. can’t help doing 21. have fun/difficulty/trouble/problem doing sth. 22. waste time/money doing 23. instead of doing 24. miss doing 二、含有不带to的动词不定式句型： 1. had better (not) do sth. 2. would you please (not) do sth. 3. why not do sth. 4. why don’t you do sth. 5. Shall we do sth.? 6. let do sth. 7. make/have sb. do sth. 三、含有带to 的动词不定式句型： 1. It’s time to do sth. 2. It takes sb. some time to do sth. 3. tell/ask/want/encourage/invite/ sb. to do sth. 4. Would you like to do sth.? 5. It’s good/bad to do sth. 6. It’s good/bad for sb.to do sth. 7. be+adj.+enough to do sth. 8. sb. is ready to do sth.

do_todo_doing英语公式

do sth/to do sth/doing sth 一.含有ing句型: 1. carry on\keep doing 坚持做某事 2. practise doing sth. 练习做某事 3. keep sb. Doing 使某人一直做某事 4. enjoy doing 喜欢做某事 5. finish doing 完成做某事 6. be afraid of doing 害怕做某事 7. （sth）be worth doing 值得做 8. be busy doing 忙于做某事 9. how about doing//what about doing 做某事怎么样 10. spend some time (in)doing 花时间做某事 11. spend some money (in) buying 花钱做某事 12. feel like doing 想做某事 13. stop/keep/prevent … from doing 阻止某人做某事 14. thank sb for doing 感谢某人做某事 15. thanks for doing 感谢做某事 16. do some cooking/cleaning/reading/shopping/washing 做点饭、打扫一下卫生、读点书、逛逛街、洗洗衣服 17. go swimming/fishing/shopping/skating/boating 去游泳、钓鱼、逛街、滑冰、划船 18. mind doing 介意做某事 19. prefer doing … to doing…比起做某事更喜欢做某事 20. can’t help doing 情不自禁做某事 21. have fun/difficulty/trouble/problem doing sth. 做某事有趣、有困难、有困难、有困难 22. waste time/money doing 浪费时间、钱做某事 23. instead of doing 代替做某事 24. miss doing 错过做某事 二、含有不带to的动词不定式句型： 1. had better (not) do sth. 最好（不）做某事 2. would you please (not) do sth. 你可以做某事吗？ 3. why not do sth. 为什么不做某事？ 4. why don’t you do sth. 为什么你不做某事？ 5. Shall we do sth.? 我们要做某事吗？ 6. let sb do sth. 让某人做某事 7. make/have sb. do sth. 使某人做某事 三、含有带to的动词不定式句型： 1. It’s time to do sth. 现在是做某事的时候了 2. It takes sb. some time to do sth. 做某事花了某人时间 3. tell/ask/want/encourage/invite/ sb. to do sth. 告诉、叫、想、鼓励、邀请某人做某事 4. Would you like to do sth.? 你想做某事吗/ 5. It’s good/bad to do sth. 做某事好、不好 6. It’s good/bad for sb.to do sth. 某人做某事好、不好

英语学习：todo与to+doing用法大不同!

英语学习：to do与to+doing用法大不同！ 1. 时间不同 forget/ remember doing：表示动作发生在“忘记”、“记得”之前 forget/ remember to do：表示动作发生在“忘记”、“记得”之后 I forgot to do my homework. 我忘记要做家庭作业了。 I forget having finished my homework. 我忘了我已经做完作业了。 2. 功能不同 go on/ leave off/ stop doing: -ing分词作宾语 go on/ leave off/ stop to do: 不定式作目的状语 My father left off working and had some coffee. 我爸爸停下工作，喝了些咖啡。

My father left off to have some coffee. 我爸爸停下来，喝了些咖啡。 3. 含义不同 在try, mean, can’t help等动词后接的是ing分词还是to do, 与动词本身含义相关。 try to do sth 努力做某事 try doing sth 试着做某事 mean to do 打算做某事 mean doing sth 意味着做某事 can’t help to do sth 不能帮忙做某事 can’t help doing sth 情不自禁做某事 4. 搭配不同 在动词agree, decide后，可直接带不定式，但若带-ing分词，则必须添加介词。

agree to do sth 同意做某事 agree on doing sth 同意做某事 decide to do sth 决定要做某事 decide on doing sth 决定要做某事 因此，我们可以看出，虽然以上动词既能跟-ing分词，也能带不定式，但意义却不相同。在运用过程中，我们要根据语境、功能、动词含义等来加以来判断，不能以一概全。

动词todo与doing的用法区别

动词todo与doing的用法区别

一、接不定式（而不接动名词） 1.作宾语的24个常用动词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. 选择做某事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. 承诺做某事refuse to do sth. 拒绝做某事want 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2.作宾补的36个常用动词advise sb. to do sth. 建议某人做某事 allow sb. to do sth. 允许某人做某事

todo与doing归纳

接动词不定式 ( to do sth ) to do sth to do sth sb to do sth to do sth sb (not ) to do sth sb (not ) to do sth ’s time (for sb) to do sth 8. It’s +adj +(for)of +sb + to do sth 9. find it +adj + to do sth 10. It takes sb +some time + to do sth to do sth (not ) to do sth one’s best to do sth 14. help sb (to ) do sth to do sth 16. a good place to do sth

17. decide (not ) to do sth sb to do sth to be +时间 able to do sth to do sth 22.疑问词+ to do sth sth to do sth sth to do sth 25. warn sb to do sth to do sth good time to do sth best time to do sth best way to do sth the first / last one to do sth like to do sth excited /surprised to do sth useful to do sth

sb to do sth ’s better to do sth ’s best to do sth care (not) to do sth enough time to do sth … to do sth … enough to do sth sb to do sth to do sth to do sth happy/glad/pleased to do sth it +adj + to do sth careful to do sth afraid to do sth ’s our duty to do sth to do sth

to do doing的用法

to do 和doing的用法是中考的考点之一，看似没什么差别，但是在某些时候意思也还是有很大的差别，下面整理下关于to do 和doing 的区别： 1.stoptodo/stopdoingsth 解析：stoptodosth.意为“停下来(正在做的事)去做(另外的)某事”，todosth.在句中作目的状语。而stopdoingsth.意为“停止做(正在做的)某事”。如 Marystoppedtospeaktome.玛丽停下(手头的工作)来跟我讲话。 Whentheteachercamein.thestudentsstoppedtalking.老师进来时，学生们停止讲话。2.remembertodo/rememberdoingsth 解析：remembertodosth.意为“记住要去做某事”(还没有做)。而rememberdoingsth.意为“记得(已经)做过某事”如： Pleaseremembertosendthelet鄄terforme.请记住为我发这封信。 Idon'tremembereatingsuchfoodsomewhere.我不记得在哪里吃过这种食物 3.forgettodo/forgetdoingsth 解析：forgettodosth.意为“忘记做某事”(动作还没有发生)。而forgetdoingsth.意为“忘记做过某事”(动作已发生)。如： Don'tforgettobringyourphotohere.别忘了把你的相片带来。 Ihaveforgottengivingthebooktohim.我忘记我已把书给了他。4.goontodo/goondoingsth 解析：goontodosth.意为“做完一件事，接着做另外一件事”，两件事之间有可能有某种联系。而goondoingsth.意为“继续做下去”。如： Afterreadingthetext,thestudentswentontodotheexercises.学生们读完课文后，接着做练习。 It'sraininghard,butthefarmersgoonworkingonthefarm.虽然天正下着大雨，但农民们继续在农场干活。5.trytodo/trydoingsth 解析：trytodosth.意为“尽力去做某事”，而trydoingsth.意为“(用某一种办法)试着去做某事”。如： Trytocomealittleearlynexttime,please.下次请尽量早点来。 Youcantryworkingouttheprobleminanotherway.你可以试试用其它的方法解答这道题目。6.can'thelptodo/can'thelpdoingsth 解析：can'thelptodo为动词不定式结构;can'thelpdoingsth.意为“身不由己地去做某事”或“情不自禁地去做某事。”如： Wecan'thelptofinishit.我们不能帮忙完成此事。 Icouldn'thelplaughingwhenIsawherstrangeface.当我看到她奇怪的脸时，我情不自禁地笑了。7.hearsb.do/hearsb.doingsth 解析：hearsb.dosth.意为“听见某人做某事”，指听到了这个动作的全过