我是初二的学生，物理和化学成绩不太好，想找家教补习一下，我不想浪费时间，大家有没有可以推荐的地方。_百度知道
我是初二的学生，物理和化学成绩不太好，想找家教补习一下，我不想浪费时间，大家有没有可以推荐的地方。
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希望能对你有帮助我之前听同事说环球100教育好像还不错，他的孩子在那补习。你查查吧，说都是在职的老师，老师也都特别负责，具体的联系方式我就不清楚了，成绩提高了不少
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出门在外也不愁英语方面好的进,最好是初中英语老师.或懂现在教材的谁能帮我把初二学生英语该会的短语列一下 比如说want to \do/ help to \do/(help \doing/)这样 把重要的地方表示出来 越全越好 英语上我是个大垃圾 又全又好的能加分 如果真能让我成绩提上去 也给QB
1.后面接动名词做宾语的动词考虑（consider）完成（finish）多练习（practise）避免（avoid）冒险（risk）求建议（suggest/recoomend）面对（face）喜欢（enjoy/appreciate）和介意(mind)允许（allow）承认（admit/permit）或放弃(give up/abandon)推迟（put off/delay/postphone）逃避（escape）不原谅（excuse/pardon）提及（mention）坚持(keep/insist on）要想象（imagine/fancy）还有词组feel like 和can’t stand!（接动名词做宾语动词）admit doing sth. 供认做某事
advise doing sth. 建议做某事allow doing sth. 允许做某事
appreciate doing sth. 感谢做某事avoid doing sth. 防止做某事
consider doing sth. 思索做某事
delay doing sth. 推延做某事
deny doing sth. 否认做某事discuss doing sth. 讨论做某事
dislike doing sth. 不喜欢做某事enjoy doing sth. 喜欢做某事
escape doing sth. 逃脱做某事excuse doing sth. 原谅做某事
fancy doing sth. 想象做某事finish doing sth. 完成做某事
forbid doing sth. 制止做某事forgive doing sth. 原谅做某事
give up doing sth. 保持做某事imagine doing sth. 想象做某事
　understand doing sth. 了解做某事keep doing sth. 坚持做某事
mention doing sth. 提及做某事mind doing sth. 介意做某事
miss doing sth. 错过做某事pardon doing sth. 原谅做某事
permit doing sth. 允许做某事practice doing sth. 练习做某事
prevent doing sth. 阻止做某事prohibit doing sth. 制止做某事
put off doing sth. 推延做某事report doing sth. 报告做某事
risk doing sth. 冒险做某事stop doing sth. 中止做某事
suggest doing sth. 建议做某事2.有些动词后面既可接不定式,又可接动名词,其意义基本相同,区别不大.接不定式或动名词作宾语意思相反的12个动词：如；like,love,hate,prefer． begin,start. ,start,continue,cannot bear,r,propose,regret.I hate speaking before a big audience.
I like reading books.
I'd like to read that book.like to do sth / like doing sth. 喜欢做某事 love to do sth / love doing sth. 喜欢做某事hate to do sth / hate doing sth. 憎恶做某事　prefer to do sth / prefer doing sth. 宁可做某事begin to do sth / begin doing sth. 开端做某事 start to do sth / start doing sth. 开端做某事　continue to do sth / continue doing sth. 持续做某事can't bear to do sth / can't bear doing sth. 不能忍耐做某事　bother to do sth / bother doing sth. 费事做某事intend to do sth / intend doing sth.想要做某事　attempt to do sth / attempt doing sth. 试图做某事cease to do sth / cease doing sth. 中止做某事注意：begin和start本身为进行时,或后面动词为心理变化意义的动词时,须接不定式.例如：When we came in, they were beginning to have supper.After his explanation, I began to understand it / realize that I was wrong. 3.在动词remember, try, regret, forget, need/want/require, stop, mean等后跟动名词V-和不定式意同,巧记一句话（记住努力；后悔忘记；需要停止；很有意义）,学习采用对比法：接不定式或动名词作宾语意思不同的9个动词且意思不同的动词(后悔)后接不定式表示动作尚未发生,后接动名词(可用一般式或完成式)表示动作已经发生.remember to do something记着去做某事（现在还没有做）（记住要做某事）Remember to post the letters. 记得把这些信寄掉.remember doing something记着曾做过某事（以前做过某事）（记住曾做过某事）I remember posting the letters. 我记得这些信是寄掉了的.forget to do sth. 遗忘要做某事I forgot to tell him the news. 我忘告诉他这消息了.　forget doing sth. 遗忘曾做过某事I forgot telling her the news. 我忘了曾告诉过她这个消息.try to do something努力、尽力做某事（设法要做某事）try doing something试着做某事（看能否达到预期的结果）（做某事试试看有何效果）stop to do something开始做某事（停下正在做的事,开始做另一事）stop doing something停止做某事（停止正在做的事）regret to do something对将来做的事感到遗憾、惋惜（懊悔（遗憾）要做某事）I regret to tell you that he can’t come. 很抱歉他不能来.regret doing something对已经做过的事感到后悔（懊悔（遗憾）曾做过某事）She never regretted doing this. 她从没后悔这样做过.　mean to do something打算,想,意图…（计划做某事）mean doing something意味着（意味着做某事）want/require/need to be done某事需要做want/require/need doing某事需要做(这时动名词和主语之间有动宾关系)如: The room needs cleaning/needs to be cleaned)can’t help to do sth.不能帮助做某事（不能协助做某事）I can’t help to clean the place up. 我不能帮助打扫这地方.can’t help doing sth.禁不住做某事（禁不住做某事）He couldn’t help crying when he heard the news. 他听到这个消息时禁不住哭了.go on to do sth. 做完某预先接着做另一事Go on to do the other exercises after you have finished this one.做完这个练习后, 请接着做其它的练习.　　go on doing sth. 持续做不断在做的事You oughtn’t to go on living this way. 你不应该再这样生活下去了.She nodded, smiled, and went on stitching. 她点了点头,笑了笑,又继续缝衣服. 注：stop to do sth. 与stop doing sth.也不同,前者指停下来去做某事,后者指中止正在做的事.4.请牢记在下列固定句式中,动词用V-ing式：There is no point arguing further. 再争辩下去没有意义.It is no good doing that. 那样做没有用.It is no use telling his father about it. 告诉他父亲那件事没用.▲
及物的短语动词也可用于这种句型.但如果短语动词由“动词+副词”构成,作宾语的代词只能置于▲
中,作宾语的名词则既可置于其中也可置于其后；如果短语动词由“动词+介词”构成,无论是代词▲
是名词做宾语,一律置于其后：He thought it （或the plan）over all night.He thought over the plan all night.He thought about it (或the plan) all night.他考虑了它（这个计划）一夜.▲
这种句型大多有被动语态形式.▲
少数不及物动词后接有同源词,我们称之为“同源宾语”,同源宾语通常带有定语：(注：即不及物动词+其相应的名词)▲
红色字体为不及物动词,蓝色字体为相应的名词live a happy life过着幸福生活die a heroic death 英勇就义breathe a deep breath 做深呼吸dream a bad dream
做噩梦laugh a merry laugh
开心一笑smile a forced smile
勉强地笑笑常用的还有：sleep, blow, fight, run, shout, sing▲
下列句子中,谓语动词后的名词不是宾语,而是状语；1.The box weighs fifty pounds. 这个盒子重五十磅.2.They walked five miles.
他们走了五英里.注：不及物动词与介词连用时,其后也可跟宾语.例如：Ann is waiting for Kate at school gate． 安正在校门口等凯特.【四】“主语 + 谓语 + 间接宾语 + 直接宾语”(即“主谓双宾”句型 ：“主----动----间宾-----直宾”(SVOiId)句型)：【Subject + Predicate +Indirect Object+ Direct Object】在这一句型中,谓语动词为能带一个间接宾语和一个直接宾语的及物动词,这类动词被称为双宾语及物动词(Ditransitive Verb),这一句型英汉语序结构相同,说明“某人为谁(间接宾语为人)做某事”,或者说“某人或物的运动涉及到两个对象,其中一个间接对象为人,另一个为物”.句型四：“主语 + 谓语 + 间接宾语 + 直接宾语【Subject + Predicate +Indirect Object+ Direct Object】(一) 双宾语易位时需借助介词to的常用动词
1.award sb. sth. = award sth. to sb. 颁奖给某人；2.bring sb. sth. = bring sth. to sb. 把某物带给某人3.hand sb. sth. =hand sth. to sb. 把某物递给某人；4.lend sb. sth. = lend sth. to sb. 把某物借给某人5.mail sb. sth. = mail sth. to sb. 把某物寄给某人；6.offer sb. sth. = offer sth. to sb. 将某物给某人7.owe sb. sth. = owe sth. to sb. 欠某人某物；8.pass sb. sth. = pass sth. to sb. 把某物递给某人9.pay sb. sth. = pay sth. to sb. 付给某人某物（钱）；10.post sb. sth. = post sth. to sb. 把某物寄给某人11.read sb. sth. = read sth. to sb. 把某物读给某人听；12.return sb.sth. = return sth. to sb. 把某物还给某人13.send sb. sth. = send sth. to sb. 把某物送给某人；14.sell sb. sth. = sell sth. to sb. 把某物卖给某人15.serve sb. sth. = serve sth. to sb. 拿某物招待某人；16.show sb. sth. = show sth. to sb. 拿某物给某人看17.take sb. sth. = take sth. to sb. 把某物拿给某人；18.teach sb. sth. = teach sth. to sb. 教某人某物19.tell sb. sth. = tell sth. to sb. 告诉某人某情况；20.throw sb. sth. = throw sth. to sb. 把某物扔给某人21.write sb. sth. = write sth. to sb. 给某人写信(二) 双宾语易位时需借助介词for的常用动词1.book sb. sth. = book sth. for sb. 为某人预定某物；2.buy sb. sth. = buy sth. for sb. 为某人买某物3.choose sb. sth. = choose sth. for sb. 为某人选某物；4.cook sb. sth. = cook sth. for sb. 为某人煮某物5.draw sb. sth. = draw sth. for sb. 为某人画某物；6.fetch sb. sth. = fetch sth. for sb. 为某人去取某物7.find sb. sth. = find sth. for sb. 为某人找到某物；8.fix sb. sth. = fix sth. for sb. 为某人准备某物9.get sb. sth. = get sth. for sb. 为某人拿来某物；10.make sb. sth. = make sth. for sb. 为某人做某物11.order sb. sth. = order sth. for sb. 为某人订购某物；12.pick sb. sth. = pick sth. for sb. 为某人采摘某物13.prepare sb. sth. = prepare sth. for sb. 为某人准备某物；14.save sb. sth. = save sth. for sb. 为某人留某物15.sing sb. sth. = sing sth. for sb. 为某人唱某物（歌）；16.spare sb. sth. = spare sth. for sb. 为某人让出某物17.steal sb. sth. = steal sth. for sb. 为某人偷某物句型四：
主语+及物动词+间接宾语+直接宾语1.He showed me the way.
他给我指了路.2.She gave me her telephone number.
他给了我电话号码.3.He handed me the letter.
他把信递给了我.4.Please throw me the key.
请把钥匙扔给我.5.They awarded her a special scholarship.
他们颁发她一项特别奖学金.6.They never denied us assistance.
他们从不拒绝给我们帮助.7.He assigned the students a few books to read.
他指定了几本书给学生读.8.Can you lend us your car?
你能把车借给我吗?9.I owned him $50.
我欠他五十美元.10.They appointed him commander. 他们任命他总指挥. 11.She sang us a folk song. 她给我们唱了首民歌.12.She found you a position. 她给你找了个职位.13.He bought himself a new suit. 他给自己买了套新衣服.14.She cooked us a delicious meal. 她给我们做了一顿美味的饭菜.15.Could you fetch me the evening paper?
你能否给我把晚报拿来?16.That’ll save us a lot of trouble.
那会省去我们不少麻烦.17.They fined her $200.
他们罚了她二百美元的款.18.Careless driving cost him his life.开车马虎使他陪了命.19.They forgave him his crimes. 他们宽恕了他的罪行.20.He brought you a dictionary. =He brought a dictionary for you. 他给你带来一本字典21.He showed me how to run the machine. 他向我展示如何开动这个机器22.My mother made me a new dress.我母亲给我做了一件新衣裳23.Show this house to Mr. Smith. 展示这个房子给史密斯先生看24.Give me a cup of tea, please 请给我一杯茶He kept me a dictionary. 他为我保存了一本词典.25.Shall I leave you the camera? 要我把照相机留给你吗?26.Our teacher taught us English.分析“我们的老师”(主语)“教”(谓语动作)“我们”(间接宾语)“英语”(直接宾语).27.She ordered herself a new dress. =She ordered a new dress for herself.她给自己定了一套新衣裳.注：本句中,直接宾语为a new dress, 间接宾语为 herself28.I showed him my pictures. 我给他看我的照片.29Could you pass me the salt? (= Could you pass the salt to me?)
请你把盐给我好吗?30.Uncle Wang made the farmers many machines.(=Uncle Wang made many machines for the farmers. )
王叔叔给农民们制造了很多机器.31.Zhou Nan lent me some money.(...some money to me.) 周楠借给我一些钱.32.Mother bought me a new dress. (...a new
dress for me.) 妈妈给我买了一件新衣服. 33.The evening dress cost her forty dollars. 这件晚礼服花了她四十美元. 34.The girl asked me whether I could repair the bike. 那个女孩问我是否会修理自行车.(直接宾语为句子) 35.He told me how to make a chair.
他告诉我如何做椅子.(直接宾语为不定式)36.My father gave a present to my sister yesterday.Li Hua给Mary他的照片.（ show ）昨天爸爸给我姐姐一个礼物.（ give ）37.Li Hua showed his pictures to Mary.我的朋友给老师了一封信.（ send ）38My friend sent a letter to his teacher.姐姐给妈妈带来一件漂亮的裙子.（ bring ）39.My sister brought a beautiful dress to Mother.请把盐递给爸爸.（ pass ）40.Pass the salt to Father please.他把自行车借给那个女孩了.（ lend ）41.He lent his bike to that girl.以前,奶奶常给孩子们讲故事.（ tell ）42.My grandma told stories to children in the past.Tom昨天教学生一首英文歌曲.（ teach ）43.Tom taught an English song to his students yesterday.在间宾前加for的：他给我亲手做了一个生日礼物.（ make ）His made a birthday present for me.她的丈夫给她买了一个漂亮的项链.（ buy ）Her husband bought a beautiful necklace for her.我们应该为残疾人做点什么.（ do ）We should do something for the disabled people.我们给老人们唱歌.（ sing ）We often sing songs for the old people.1.间接宾语后置与for连用的动词有buy, make, cook, get, choose, sing, find等.例如：Uncle Li bought me a birthday present．(＝Uncle Li bought a birthday present for me．) 李叔叔给我买了一件生日礼物.
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扫描下载二维码你好,空压机压力值设定还有一点不太懂,请教一下._百度知道
你好,空压机压力值设定还有一点不太懂,请教一下.
从机2压力设7.5---7,加载1分钟后卸载5分钟,请看一下这样设有没有问题,250KW英格索兰的,主机压力设8公司设备压力要求是6,10KV.5Mpa,请帮忙分析一下.3--7,从机1加载和卸载的频率太高了.0Mpa.5--6.5Mpa,这样重复,还有一个问题是这样设了以后,谢谢,现在有三台空压机.5Mpa,现在是这样设压力的,从机1压力设8
压力值单位写错了,是kg
提问者采纳
根据你设备的要求，，7，英格索兰，主机的压力下限设到7，6.0是2号机独自运行.3公斤，设置压力是接力棒式的.5是主机单独运行，不会一台机组老是加载卸载的啦，也就是1号机的卸载时间，上限设置为最高，加载时间短，那你设置在7，优耐特斯.5-7，这也太逊了吧，分时段启动又能分时段停机。这样看来，还要用户绞尽脑汁设压力。关键你这个机组.5-8，时间应该就不止一分钟了，自然加压迅速，另一台辅助就可以了，发现没有，你需要满载的一台.7，你可以将1号机组的压力下限设低一些，.5打气到7公斤的时间.5左右（抵消管路压损1公斤）就可以了，还世界品牌呢，自动平衡使用时间.3-8，明白你的初衷，1号机卸载，是希望三台机组，而卸载的5分钟，8，1号机和主机共同打气到8.0-7。065MPa，辅助的那台，从你设定的三台空压机压力上下限来看，轻轻松松，比如设到6，是2号机组从6，2号机独自加载的时间将是2分钟，打到7。统一设置成一样的压力。百度一下.5是2号机和1号机运行.5的时侯，1号机运行的时段，气量大了，7，之后1号2号机组同时打气.3是1号机和主机运行，下限统一一样。，其实用一台满载，都是两台机组在运行，这样的话.7公斤，另外，自然就会有主有从，明显是大了，这功能呵呵。谁叫当时采购的时候，从洋媚外的
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你真棒，学习了
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其他4条回答
关2台，后面气罐多大
可以把从机1压力设置和从机2一样，这样足够设备用气压力还可以避免从机1的频繁加卸载
这是一个很绕口的题目，描述清楚了，不一定能理解清楚，咱俩试试。
先分析一下原设定的目的；主机设8.5---7.5Mpa，从机1设8.3--7.0Mpa，从机2设7.5--6.5Mpa，三台空压机启动正常开机；主机---1#-机---2#机，1#机2#机谁先开应该没有问题，全部开机全部加载，然后，压力到达7.5时2#机卸载，压力到达8.3时1#机卸载，压力到达8.5时主机也卸载；然后，压力下降达到7.5时，主机加载，这个时候如果压力能够保持或者稍微上升，那么，1#2#机就处在卸载状态。如果，压力持续下降，达到7.0时1#机加载，描述到这里，大家多明白了，这时压力只有上升，没有下降的情况，所以1#机处于经常加载卸载的过程，而2#机根本就处于卸载状态，没有起到作用。三台设备二台正常工作，一台完全处于空载，这是浪费，应该改造，或者，可以根...
最好加用一台变频的。
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出门在外也不愁初二物理的滑轮组这些组合不太懂希望解释一下原因。_百度知道
初二物理的滑轮组这些组合不太懂希望解释一下原因。
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初二物理的相关知识
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因为你没专心听课
好怀念啊，哪些不会？
最下面那两个。为什么滑轮移动的距离是附近移动的距离的两倍。还有拉力的计算公式不理解。
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