can do后面的do 一定要省略号后面加不加句号吗

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  一、使役动词后省略to的情况
  在let, make, have等使役动词后用作宾语补足语的不定式必须省略to等使役动词后用作宾语补足语的不定式必须省略to。
  如:My mother wouldn’t let me go to the film.
  我妈妈不会让我去看电影的。
  I don’t like milk, but mother made me drink it.
  我不喜欢牛奶,可是母亲强迫我喝。
  I would have him wait for me at the gate of the park.
  我要他在公园门口等我。
  注意:
  1. 当使役动词用于被动语态时,要补上在主动语态中省略的to(主要是指make,let和have很少用于被动语态)。
  2. force, oblige等虽然也表示“使”,但它们后用作宾语补足语的不定式必须带to。
  He forced me to go with them.
  他迫使我同他们一起去。
  The police obliged him to leave.
  警方强迫他离开。
  二、感觉动词后省略to的情况
  在感觉动词后用作宾语补足语的不定式必须省略to
  I watched her get into the car.
  我看着她上了车。
  I saw the woman enter a bank.
  我看见这个女人进了一家银行。
  We often hear her sing this song.
  我们经常听到她唱这首歌。
  Did you notice her leave the house?
  她离开屋子你注意到了吗?
  注意:
  1. 这里所说的感觉动词主要包括see, hear, observe, notice, feel, watch等。但是它们用于被动语态时,其后的不定式必须带to。
  如:Th 'Times New Roman'.有人看见这个女人进了一家银行。
  但是,用于以上句型的动词notice 和watch通常不用于被动语态。
  2. 类似地,动词look at和listen to后用作宾语补足语的不定式也不带to。
  如:We listened to the old man tell his story.
  我们听这位老人讲述他的经历。
  3. 若动词feel后用作宾语补足语的不定式为 to be,则要带 to be to(其他情况不带 to)。
  如:They felt the plan to be unwise.
  他们认为这个计划不明智。
  4. 若不定式为完成式,通常应带 to。
  如:I noticed her to have come early.
  我注意到她来得很早。
  三、动词help后省略to的情况
  在动词help后用作宾语或宾语补足语的不定式可以不带to。
  Can I help (to) carry this heavy box?
  我可以帮忙扛这个重箱子吗?
  Mother helped me (to) do my homework.
  妈妈帮助我做作业。
  注意:
  1. 当 help 之后接一个较长的名词词组作宾语或当其中的不定式所表示的动作主语不直接参加时,不定式通常带to。
  如:Help the little boys at the back of the hall to carry the chairs out.
  请帮大厅后面那些小男孩把椅子搬出去。请帮大厅后面那些小男孩把椅子搬出去。
  These tablets will help you to sleep.
  这些药片将对你的睡眠有帮助。
  2. 在当help用于被动语态时,不定式前的to不能省略。
  如:The boy was helped by a woman to collect his scattered coins.
  那男孩由一个妇女帮他捡拾散乱一地的钱币。
  四、why (not)…后省略to的情况
  在why (not)…?之后的不定式不能带to。
  如:Why go with him?
  为什么要同他一起去?
  Why not ask the teacher?
  为什么不去问问老师?
  Why not try to expand your story into a novel?
  你怎么不把你的故事扩展成小说呢?
  五、动词know后省略to的情况
  在“know+宾语+不定式”中,不定式有时省略to,有时不省,可分以下两种情况讨论:
  1. 若 know 为现在式,该结构中的不定式只限于 to be,且其中的to不能省略。
  I know him to be ill.
  我知道他病了。
  We knew her to be honest.
  我们知道她是诚实的。
  2. 若know为完成式或过去式,则该结构中的不定式可以用除 to be外的其他动词,且此时其中的to可以省留。
  如:I never knew him (to) do such a thing.
  我从未听说他会干那种事。
  We’ve never known him (to) tell a lie.
  我们从未听说他撒过谎。
  I’ve never known it (to) snow in July before.
  我从未听说过有七月下雪的事。
  但在被动语态中不定式前的to不能省略。这样用的know不仅仅表示一般意义的“知道”,而是表示一种经历,因此常译为“曾“……过”(用于肯定句时)或“(从来)没有……过”(用于否定句时)。。
  六、介词except / but后省略to的情况
  用作介词except, but宾语的不定式有时带tw Roman'&&except, but,有时不带to。其大致原则是:若其前出现了动词 do,其后的不定式通常不带 to;若其前没有出现动词 do,则其后的不定式通常带 to。
  如:I had no choice but to wait.
  除了等,我没有别的选择。
  He wanted nothing but to stay there.
  他只想留在那儿。
  It had no effect except to make him angry.
  除惹他生气外,没产生任何效果。
  She can do everything except cook.
  除了做饭之外她什么都会。
  七、主语带do表语省略to的情况
  当主语部分有动词do的某种形式时,用作表语的不定式可以省略to。
  All you do now is (to) complete the form.
  你现在要做的只是把这张表填好。
  The only thing to do now is (to) go on.
  前进是现在唯一的出路。
  What I’ll do is (to) tell her the truth.
  我要做的就是告诉她真相。
  八、并列不定式省略to的情况
  当两个或多个作用相同的不定式并列时,通常只需在第一个不定式前用to,其余不定式前的to可以省略。
  He told me to stay there and wait for him.
  他叫我在那儿等他。
  I’m really puzzled what to think or say.
  我真不知该怎么想怎么说。我真不知该怎么想怎么说。
  It is easier to persuade people than (to) force them.
  说服人容易,强迫人难。但是,如果两者有对比关系,则后面不定式前的to不可省略。
  To try and fail is better than not to try at all.
  尝试而失败总比不尝试好。
  九、省略不定式是否保留to
  在一定的上下文中,为了避免重复,有时不定式可以省略,但通常保留不定式符号to。
  I shall go if I want to. 如果我想去就去.
  Don’t be late. “不要来晚了。”
  “I’ll try not to.”“我尽量不来晚。”
  Don’t go till I tell you to. 等我叫你走你再走。
  注意:
  1.若被省略的不定式为to be短语,则通常应保留to be。
  如:He is not the man he used to be.
  他已不是原来的那个样子了。
  2. 有时省略不定式时,同时也可省略to。
  如:toShe may go if she likes (to).
  她想去就可以去。
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1.75亿学生的选择
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This exercise is so difficult that few of us can do it.为什么后面的it 不能省略?
▇江湖▇2aV
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1.75亿学生的选择
that few of us can do it 是个独立的句子,do 是及物动词,后要跟宾语.
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do后面需要跟宾语 it指代前面提到的This exercise 不能省略
it是句子的宾语成分,省略后句子变不完整了
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1.75亿学生的选择
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是can to do sth.还是can do sth.
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看情况:1.I can answer your question.肯定是 can do something.2.We do what we can to help him.用的是can to do,因为这个 can 后面省略了do,省略的原因是前面有实意动词do.
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can do sth能做某事
can do sth
是can do sth.can 加动词原形
can 是情态动词要接动词原形,所有的情态动词都要接动词原形但是要到了具体的问题的时候要具体分析举个例子:He always does all things that he can to help me.这个地方can后面仿佛是接的to但实际上这里 that he can 是作定语从句修饰 things 的to help 才是连...
扫描下载二维码选D.can后省略了do, to help you 是目的状语.——精英家教网——
成绩波动大?难提高?听顶级名师视频辅导,
选D.can后省略了do, to help you 是目的状语. 【】
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阅读下文,完成文后各题。 “进化”不了的爱 孙君飞 进化论包含着残酷的丛林法则,也隐含着生命的自私自利性。一个生命个体要想很好地生存下去,必须要将自己变得更优秀,学会“排他”,否则优胜劣汰的只能是自己。不过,人们在观察工蜂时,惊讶地发现,它们并未受到进化论的影响,它们混沌若当初,或者说它们完美地保持着一种纯粹而崇高的精神,这使它们成为生命进化中的另类。 工蜂属于生殖器官发育不完善的雌性蜂,即便能够产卵,也只是没有受精的卵,因此它们自身没有繁殖能力。这种缺陷可怕而又不幸,然而工蜂对此无动于衷,甘愿终身携带着缺陷而生,从未奢望将自身进化得更完美更强悍。值得称道的是,工蜂的适应性反而很强大,它们拥有相当厉害的武器——毒刺,刺上长有倒钩,一旦“亮剑”就不能回收利用。工蜂的毒刺是不折不扣的双刃剑,在伤及侵害者的同时,自己的生命也面临着终结。 蜜蜂家族中令人难以置信的社会结构更加震惊着世人的心灵,在这里一切都那么井然有序,合乎“法则”,一切又那么一往情深,合乎“生命之爱”。蜜蜂的利他主义行为也许会让达尔文难以理解,失去繁殖能力却能够将各种特征和习性一代代传承下去的工蜂可能更让达尔文目瞪口呆吧。答案其实很简单,一切都源于蜜蜂与众不同的遗传结构。换言之,存在于工蜂体内的遗传基因极其顽强,只有它们才会驱使工蜂去鞠躬尽瘁地照顾其它跟自己具有相同基因的生命,甚至为对方牺牲自己,却无怨无悔。 蜂后产下的受精卵天生高贵,常常会孵化出雌性幼蜂,而延续高贵的办法只有一个:它们只有食用了工蜂分泌的蜂王浆之后,才能发育成具有生殖能力的小蜂后,否则它们在长大后依然属于工蜂——从出生时开始,便将生命献给蜂群、终日辛劳的工蜂! 由于小蜂后的基因与工蜂的基因几乎相同,从身形外貌上看,彼此也几乎一模一样,这也许使工蜂顿感一阵甜蜜而幸福、神圣而自豪的恍然:站在我面前的,莫不是又一个“我”?我由此获得了新生,得到了永恒……工蜂在含辛茹苦喂养小蜂后的过程中,彼此的血缘关系升至最亲密最牢固。它们原本不是毫不相关的两个,而是见证生命延续、利他友爱的两个。因为相同的基因存活在它们的生命之中,工蜂在潜意识里将蜂后看得比自己的生命更为重要,为了对方、也为了另一个“我”和“我们”,它们可以在必要时完全放弃自己现实的生命及其未来。 (选自在《思维与智慧》有删节) 下列关于“工蜂”的表述,不符合原文意思的一项是 & A.作为生命个体,工蜂的生命隐含着自私自利性,要想不被淘汰,它必须将自己变得更优秀,学会“排他”。&&&
& B.工蜂之所以成为生命进化中的另类,是因为它们完美地保持着一种纯粹而崇高的精神,并未受到进化论的影响。&&&
& C.工蜂的适应性很强,尾部长有倒钩的毒刺是相当厉害的武器,在伤及侵害者的同时,工蜂的生命也意味着终结。&&&
& D.从出生开始,就为蜂群而终日辛劳的工蜂,能把各种特征和习性一代代传承下去,靠的是与众不同的遗传结构。 下列有关“蜜蜂繁殖&的表述,符合原文意思的一项是 & A.蜂后是具有生殖能力的雌性蜂,产下的受精卵天生高贵,孵化出雌性幼蜂,幼蜂长大以后就成为新一代蜂后。 & B.工蜂自身没有繁殖能力,属于生殖器官发育不完善的雌性蜂,即便能够产卵,也只是没有受精的卵,不能孵化幼蜂。 & C.存在于工蜂体内的遗传基因极其顽强,它驱使工蜂分泌蜂王浆,鞠躬尽瘁地照顾和自己具有相同基因的“孩子”。 & D.蜂后负责产卵,工蜂负责喂养幼蜂,因而小蜂后的基因与工蜂的基因几乎相同,身形外貌上也几乎一模一样。 下列根据原文信息所作的推断,不正确的一项是 & A.采粉、酿蜜、饲喂幼虫的工蜂是蜂群的主体,儿歌唱的“小蜜蜂,整天忙,采花蜜,酿蜜糖”,指的就是工蜂。 & B.蜜蜂家族一切都井然有序,合乎“法则”,合乎“生命之爱”,人类如果借鉴了这种社会结构.可能会更有利于社会和谐。 & C.为了蜂后和后代,工蜂不惜牺牲自己,是因为它们有奉献精神,潜意识里将蜂后和后代看得比自己的生命更重要。 & D.工蜂一生从事的是利他的事业,而不是优化自己的结构来繁衍后代,从这一点来看,&&& 达尔文的进化论“适者生存”不科学。
&第二节 根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。(注意:如果所用的答题卡没有提供E、F、G选项,请按以下方法填涂:选E请涂A、B,选F请涂B、C,选G请涂C、D。)―Hi, it’s you, Pansy! &&&61&&&―Hi, Olivia! Long time no see.I’ve changed a lot, haven’t I?―& &&62&& &You’reslimmer than before.― Really? I’m losing weight.― &&&63&&&Going on a diet or…?―I tried to eat less, but failed.You know I’ve got a sweet tooth.Chocolates, ice creams… all myfavourites.― So?― My doctor advised me to do more exercise.You see, as a secretary to themanager, I always sit at the desk doing paperwork.&&64&&& &So at last, I followedhis advice.I’mattending a Yoga (瑜伽) course twice a week.And I often do jogging (慢跑) in the morning.― &&&65&& &&I’mquite interested in it.―Sure.A.How do you do?B.Sometimes, I’m too busy and don’t want to spare time for exercise.C.Lack of exercise led to my gaining weight day by day.D.Can you introduce your Yoga coach to me?E.I didn’t recognize you!F.But how?G.Yes, indeed.&
阅读下面短文,从短文后各题所给的四个选项(A、B、C和D)中选出可以填入空白处的最佳选项,并在答题卡上将该项涂黑。 One day a few years ago we had an uninvited guest—a sparrow.& 36& the little bird had flown into our open garage. Then I& 37& the bird before I saw it. “What’s that?”I asked when I first heard the sound. “It’s coming from the& 38& .”my wife, Anita, said. “Maybe it’s one of the little& 39& .” I looked into the garage. No children at all. But there was that sound again, coming from right up there. And that’s& 40& &I saw the sparrow. It was flying& 41& just inches below the ceiling. It was clearly& 42& to get out, but couldn’t see the way out was not up, but& 43& and and out through the garage door. So the bird continued flapping its wings and bumping its little head 44 &the ceiling. I tried to terrify it out, but only succeeded in driving it into the &45& open space between the door and the ceiling. Then I tried to show the bird how to fly down a few feet& 46&& it could get outside, but that only seemed to& 47& it more. “Why don’t we just leave for a few minutes,” Anita& 48& .“I’m sure he’ll figure it out eventually.” We went back into the house, where we& 49& to hear the ongoing struggle between the sparrow and the ceiling. Then suddenly, it was& 50& and our uninvited guest was gone. I’ve& 51& that little sparrow through the years, and I’ve decided that birds are not different much from people. We think we were& 52& to fly ever upward, and we don’t even consider the& 53 &that something good might happen if we just fly down a little bit. Once we figure out that we can make& 54& without banging(碰)our heads against ceilings, we can usually save ourselves much &55& . 36.A. Still&&&&&&&&&&&&& B. Somehow&&&&&&&&& C. Instead&&&&&&&&&&&&& D. Perhaps
【答案】B 【解析】不知怎么的,这只小鸟飞进了我们开着的车库。B.不知怎么的。 37.A. heard&&&&&&&&&&& B. caught&&&&&&&&&&&&&& C. searched&&&&&&&&&& D. observed 【答案】A 【解析】根据下文when I first heard the sound, 可知本句的意思是“未见其鸟,先闻其鸣”。 38.A. house&&&&&&&&&& B. backyard&&&&&&&&&& C. garage&&&&&&&&&&&&&& D. basement 【答案】C 【解析】根据36题所在的句子可知, 小鸟进入了garage,所以声音应该从garage传来。 39.A. birds&&&&&&&&&&& B. guests&&&&&&&&&&&&&& C. cats&&&&&&&&&&&&&&&&& D. kids 【答案】D 【解析】根据下文no children at all.可知, 作者的妻子认为是期中一个孩子 40.A. when&&&&&&&&&&& B. how&&&&&&&&&&&&&&&&& C. why&&&&&&&&&&&&&&&&& D. whether 【答案】A 【解析】when引导表语从句。“就在那时我看到了那只麻雀。” 41.A. quickly&&&&&&&& B. anxiously&&&&&&&&&& C. cautiously&&&&&&&&& D. slowly 【答案】B 【解析】anxiously不安的,焦虑的。因为被困,所以很焦虑。 42. A. deciding&&&&&& B. hesitating&&&&&&&&&& C. trying&&&&&&&&&&&&&&& D. choosing 【答案】C 【解析】try to get out努力要出去。 43. A. up&&&&&&&&&&&&&& B. backward&&&&&&&&& C. forward&&&& &&&&&& D. down 【答案】D 【解析】但是它看不到出去的路不在上方,而在下方。 44. A. against&&&&&&&& B. off&&&&&&&&&&&&&&&&&&& C. along&&&&&&&&&&&&&&& D. into 【答案】A 【解析】bump its little head against the ceiling 小脑袋撞击天花板 45. A. free&&&&&&&&&&&& B. small&&&&&&&&&&&&&&&& C. wide&&&&&&&&&&&&&&&& D. dark 【答案】B 【解析】门和天花板之间的空间很小。 46. A. in case&&&&&&&& B. even if&&&&&&&&&&&&&& C. as though&&&&&&&&& D. so that 【答案】D 【解析】so that 引导目的状语从句。 47. A. puzzle&&&&&&&&& B. confuse&&&&&&&&&&&& C. frighten&&&&&&&&&&&& D. disturb 【答案】C 【解析】但是这样似乎使它更害怕。Frighten sb使某人害怕, 吓唬某人 48. A. suggested&&&& B. explained&&&&&&&&&& C. insisted&&&&&&&&&&&& D. demanded 【答案】A 【解析】why don’t sb do 是表示建议的用语。 所以选择A。 49. A. attempted&&&& B. continued&&&&&&&&& C. refused&&&&&&&&&&&& D. failed 【答案】B 【解析】continue to do sth继续干某事 50. A. fierce&&&&&&&&&& B. empty&&&&&&&&&&&&&& C. safe&&&&&&&&&&&&&&&&& D. silent 【答案】D 【解析】根据下文our uninvited guest was gone, 所以没有声音了,很安静 51.A. looked after&& B. worried about&&& C. thought about&&& D. brought up 【答案】C
【解析】A.照看 B.担心 C.思考& D. 提出。下文题到“鸟和人没有什么不同”,所以作者是在思考。 52. A. forced&&&&&&&& B. determined&&&&&&&& C. born&&&&&&&&&&&&&&&& D. urged 【答案】C 【解析】be born to do 天生就是干某事的。 “我们认为我们天生就是往上飞的” 53. A. idea&&&&&&&&&&&& B. possibility&&&&&&&&& C. challenge&&&&&&&&&& D. problem 【答案】B 【解析】我们甚至没有考虑这种可能性,如果我们飞的低一些,好事也可能会发生。 54. A. progress&&&&& B. peace&&&&&&&&&&&&&&& C. decisions&&&&&&&&&& D. efforts 【答案】A 【解析】make progress取得进步 55. A. panic&&&&&&&&&& B. pressure&&&&&&&&&&& C. loss&&&&&&&&&&&&&&&&& D. trouble 【答案】D 【解析】save some trouble 省去很多麻烦。
第二节 根据对话内容,从对话后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 (注意:如果所用的答题卡没有提供E、F、G选项,请按以下方法填涂:选E请涂A、B,选F请涂B、C,选G请涂C、D。) ―Hi, it’s you, Pansy! &&&61&&&
―Hi, Olivia! Long time no see.I’ve changed a lot, haven’t I? ―& &&62&&& You’re slimmer than before. ― Really? I’m losing weight. ― &&&63&&& Going on a diet or…? ―I tried to eat less, but failed.You know I’ve got a sweet tooth.Chocolates, ice creams… all my favourites. ― So? ― My doctor advised me to do more exercise.You see, as a secretary to the manager, I always sit at the desk doing paperwork.&& 64&&& &So at last, I followed his advice.I’m attending a Yoga (瑜伽) course twice a week.And I often do jogging (慢跑) in the morning. ― &&&65&& &&I’m quite interested in it. ―Sure. A.How do you do? B.Sometimes, I’m too busy and don’t want to spare time for exercise. C.Lack of exercise led to my gaining weight day by day. D.Can you introduce your Yoga coach to me? E.I didn’t recognize you! F.But how? G.Yes, indeed.
根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。请按以下要求进行答题卡填涂:A、B、C、D四个选项正常填涂。若选E,请将A、B一起涂黑;若选F,请将B、C一起涂黑;若选G,请将C、D一起涂黑。 “So, what are you doing after graduation?” &&71& &However, you have to make up your mind as your last high school year begins. Whether your plans include college, heading straight for the workforce, or taking a year off, here are some practical tips to prepare yourself for the journey. Going to College Some people know from an early age exactly what they want to be and how they plan to get there. &&72&& According to a recent survey, 75% of students change their majors after they enter college. After all, school is also not just about careers and getting a high-paying job after graduation — it’s a place for learning about yourself and the world. Selecting a School If college is in your future, you need to plan. Start by asking yourself questions about your preferences. &&73& &Once you’ve narrowed down your choices, ask the schools to send you literature or visit their websites. Getting a Job Maybe you’ve decided that college isn’t for you—right now, anyway. If you want to join the workforce, opportunities are out there for people who don’t have degrees. Some products-selling or service industry organizations offer training programs to high school graduates. Search the classified ads in the newspaper and do some Internet research. &&74& & Taking Time Off What if you intend to go to college but just don’t feel ready to start yet, for whatever reason? __75& &This practice is common in some countries, like the United Kingdom, where it’s called a “gap year”. Even if you decide not to apply to college, it can be a great idea to take a year to do something you may not have an opportunity to do again. Lots of volunteer organizations would welcome your time and energy and would provide you with a wonderful learning experience. A. You might want to get a high-paid job first. B. You might want to take a year off to pause. C. This is the fact that young people have to take into consideration. D. Most large companies list their job openings on their websites. E. Not all of us are so sure of our plans, though, and that’s OK too. F. Many juniors and seniors get bored answering that question over and over. G. Ask friends in college about their schools and other schools they’re familiar with.
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