cherrychoi25
(1)By the time the speaker entered the hall ,allthe listeners( c ).A.had seated B.were seated C. seated D.were seating(2)By the end of July this building( c )A.will be finished B.will have finished C.will have been finished D.had been finished(3)He is talking so much about America as if he ( b )thereA.had been B.has been C.was D.been我是大三的学英语的、。
佳丽子伊
1.A项确定没写错吗?对于seat,它基本用法是seat oneself, sb sits. A如果真的不是had been seated的话,那B 就最合适了, D 项seating换成sitting也能凑合,表示一直坐着这个状态,C项 seat是及物动词,改为seating themselves 就合乎语法规则,但意思别扭。2.C理解基本意思后,了解两点,就能做出答案了:被动,建筑是被建造出来的,所以排除B;By加时间段多数用完成时,至于是将来完成时还是过去完成时,就要看by后跟的时间是过去的还是现在的了。这句话中理解成将来发生的事,顺眼。在某种语境下,D也对,如果7月明确指出是去年或之前的七月。3.A 虚拟语气,正常语气下,应该是has been,但as if要用虚拟语气,所以用had beeno(∩_∩)o
江秀梅+刘洋
【评】错大发了。应说:均可引导动词的宾语从句。if 是不能引导主语从句的。
2.whether 和 if 均可用来引导宾语从句。如:
① I don't know whether/if I will be able to come. 我不知道我是否能来 .
② She asked me whether/if I was interested in working for her. 她问我是否有兴趣为她工作。
③ We'll be told tomorrow whether we should take the exam or not. 我们明天才知道是不是应该参加考试 .
④ I asked him whether he had done all the work himself or whether he had had any assistance. 我问他这些工作都是他自己做的还是别人帮他做的 .
( 注意 : 在两个供选择的从句之间若用 or 字 , 则须重复 whether 一字 . )
注 :
⑴当强调宾语从句并将其提前时只能用 whether 。如 :Whether I'll have time to go with you I am not sure. 我很难说我们是否有时间跟你们一起去
【评】例句不当。I am not sure 后本就不该用if, 如改成:I don't know,就好。
⑵从句作介词宾语时只用 whether 不用 if 。如 :She was undecided about whether she should accept his offer. 她拿不定主意应该不应该接受他的好意
⑶当 whether 和 or not 连用时,只用 whether 不用 if 。当 or not 放在 whether 引导的从句句尾,则可以用 if 来替换。 如 :
I don’t know whether or not he will come. 我不知道他是不是回来。
I'll be happy whether/if I get the job or not 我能不能得到那份工作都一样高兴
【评】错例! 这里的whether是引导让步状语从句的,意为:无论。。。还是。。。,不能用if . not. 将上一句改一下就可以了:
I don't know whether/if he will come or not.
⑷当 whether 和 or 连用表示明确的选择时,只用 whether 不用 if 。 如 :
He asked me whether I wanted to go there by train or by bus. 他问我是想乘火车还是坐公共汽车去那里。
He hesitated about whether he should drive or take the train. 他开车去还是坐火车去 , 犹豫不决
【评】例句不当,介词后本就应用whether,不用if
注 :whether 和 or 连用还可以引导让步状语从句 , 此时也不用 if 。如: We'll go on with the work, whether we can find the necessary tools or not. 不管我们能否找到所需的工具 , 我们要把这件工作做下去。
Whether or not it rains / Whether it rains or not, we're playing football on Saturday. 无论下不下雨 , 我们星期六一定踢足球 .
⑸动词 discuss , decide, consider 等后习惯上也常用 Whether 引导从句,不用 if 。
They discussed whether they should leave at once. 他们讨论了是否应该马上离开
We discussed whether the house should be sold. 我们讨论了这房子是否应卖掉
【评】我以前只知道discuss后,另两个我没听说过。如能找到权威例句,则这条也有问题。
就是disscuss后不用if代替whether, 我也不是很理解。不知道是谁发现并总结出来的规则!这种规则很容易打破,比如我在网上看到:
The Committee: They Decide If I Live Or Die 作者:Clay Cornelius
说明decide之后有用if代替whether的例子。
英语句型转换题目: He cant decide if he will go to his cousins birthday party. He can't decide_ _ go to his cousin's birthday party . 同义句。
Please consider if this is feasible.是否可行, 请斟酌。
【】甚至我都怀疑,这个discuss后面有没有跟if的老外! 对于这一条,我始终将信将疑!
British meteorologists and climate scientists are meeting to discuss if the unusual weather is "a run of natural variability" or the product of human-...
3. 表语从句用 whether 引导不用 if. 如 :
① The doubt was whether you had broken the beautiful vase. 疑问是你是否打坏了这只漂亮的花瓶。
【评】例句和翻译很差。不如改成:The question is ... 问题是。。。
4. 同位语从句用 whether 引导不用 if. 如 :
① The question whether we'll build another lecture building hasn't been settled. 是否要另建一幢教学楼的问题还未决定。
5. 在动词不定式之前,只能用 whether ,不能用 if 。如 :
① The question is whether to go to Munich or Vienna. 问题是去慕尼黑还是去维也纳 .
② She doesn't knows whether to get married now or wait. 是否现在结婚或是等待她不知道。
③ We were wondering whether to go today or tomorrow. 我们弄不清是今天走还是明天走 .
④ I'm not sure whether to resign or stay on. 我拿不准主意是辞职还是留任 .
【】【】一句话总结【】【】if 和whether引导名词性从句的区别【】
在除discuss以外的及物动词后面的宾语从句中,在不引起歧义的条件下,可以用if代替whether,,但是不能直接跟or not.
不能用if代替whether的情况:
引导其它名词性从句时,只能用whether,不能用if
有歧义时,不用if
介词的宾语从句,不用if引导。
discuss的宾语从句不用if引导
引导让步状语从句,不用if
楼主,我指出原文的六处错误或不当之处。
蓝莓嘉人
1. 答案:A.把该句还原成主动句即:Somebody saw the boy ____ on the sports ground.此题含有“感官动词saw + 宾语the boy + 宾语补足语play”结构。考查宾语the boy和宾补动词play之间的关系为主动关系,答案只能是play或playing.但是如果该句变成被动语态后,如果主动句答案为play,则被动句时须改成to play(即补上主动句中被省略的不定式符合to);如果主动句答案为playing,则被动句时无需改变,还是playing.所以答案只能是:to play 或 playing,最终选择A。2. 此题答案可以是以下两种:1)lasted 炎热的天气延续到了十月底。此时是对过去发生情况的描述,比如说是去年的天气情况。2)will last 炎热的天气将会延续到十月底。此时是对将来情况的描述。楼主可以自己根据上下文,进行判断选择。
起名字哈烦躁
看了上面网友给出的答案,有没有感觉很吃力学习的目的是为了交流,所在个人认为在相互交流中来学习是比较轻松的 可以了解下“英语教练”互动教程全国唯一一家提供全程答疑解惑服务的教育商城零风险,试学满意后再付款精选上百种常用情景对话,角色变换,让你在对话中轻松掌握大量词汇、短语,并且印象深刻,日后遇到类似场景,就及时应答 直接百度“英语教练”就能找到官网
笑逍遥客
呵呵 希望对你有所帮助 祝楼主进步哈 记得采纳O(∩_∩)O哈!九年级英语复习---语法讲解(1-7单元)Unit1By是个很常用的介词(有时也用作副词),在初中英语中的用法有以下几种: 1.意为“在……旁”、“靠近”。如: Some are singing and dancing under a big tree . Some are drawing by the lake. 有的在大树下唱歌跳舞,有的在湖边画画儿。 2.意为“不迟于”、“到……时为止”。如: Your son will be all right by supper time. 你的儿子在晚饭前会好的。 How many English songs had you learned by the end of last term? 到上个学期末你们已经学了多少首英语歌曲? 3.表示方法、手段,可译作“靠”、“用”、“凭借”、“通过”、“乘坐”等。如: The monkey was hanging from the tree by his tail and laughing.猴子用尾巴吊在树上哈哈大笑。 The boy’s father was so thankful that he taught Edison how to send messages by railway telegraph. 孩子的父亲是那么的感激,于是他教爱迪生怎样通过铁路电报来传达信息。 4.表示“逐个”、“逐批”的意思。如: One by one they went past the table in the dark. 他们一个一个得在黑暗中经过这张桌子。5.表示“根据”、“按照”的意思。如:What time is it by your watch? 你的表几点了? 6.和take , hold等动词连用,说明接触身体的某一部分。如: I took him by the hand. 我拉住了它的手。 7.用于被动句中,表示行为主体,常译作“被”、“由”等。如: English is spoken by many people. 英语被许多人所说。(即“许多人讲英语。”) 8.组成其它短语。 1) by the way : 意为“顺便说”、“顺便问一下”,常做插入语。如: By the way , where’s Li Ping , do you know? 顺便问一下,李平在哪儿。你知道吗? 2) by oneself : 意为“单独”、“自行”。如: I can’t leave her by herself. 我不能把她单独留下。 3) by and by : 意为“不久以后”、“不一会儿”。如: But by and by , more and more people began to study English. 但是不久以后,越来越多的人开始学英语了。二、动名词的构成动词后加动名词doing,相当于名词,在句子中可以做主语、宾语、表语定语等。1)★作主语(这种用法常考) Fighting broke out between the South and the North.南方与北方开战了。2)作宾语Would you mind turning down your radio a little, please?请问你介意调小一点收音机的音量吗?3)作表语Babysister’s job is washing,cooking and taking care of the children。保姆的工作是洗衣服,作饭和照看孩子。Unit2used to 的用法:(1)肯定句:used这个词没有人称的变化,to后面接动词原形。 否定句是didn’t use to….When I was a child, I didn’t use to like apples.当我还是孩子的时候我不喜欢苹果.疑问形式是Did you use to…?Where did you use to live before you came here?当你来这儿之前你住哪儿?(2)含有used to 的句子的反意疑问句不要usedn’t + 主语,而用didn’t + 主语。He used to smoke, didn’t he? 他过去常常吸烟,是吗?Yes, he did./ No, he didn’t. 是的,他吸。/ 不,他不吸。(3)used to 表示过去的习惯动作, 而不是现在的。I am used to the weather here. 我已经习惯于这里的天气了。He is used to hard work. 他习惯于艰苦的工作。(4)used to 可以和be, have 以及其他状态动词连用,描写过去的状态。 I used to be a waiter, but now I’m a taxi-driver.我过去是一个服务员,但现在我是出租车司机。★ 本单元的许多运用used to 的句子属于描述过去的状态。Mario used to be short.马力奥过去总是很矮。Amy used to be outgoing.爱米过去性格外向。Tina used to have long and straight hair.蒂娜过去有一头直的长头发。He used to wear black shoes. 他过去常穿黑鞋。Unit3本单元重点讲到了被动语态的用法英语动词的被动语态由助动词be加及物动词的过去分词构成。助动词be有时态,人称和数的变化,其变化规则与连系动词be完全一样。 一、被动语态的句式变化: 以一般现在时和动词invite为例,列表说明被动语态的句式变化: 二、各种时态的被动语态结构总结如下: 被动语态的时态是由be的时态决定的,be是什么时态,全句就是什么时态,be动词后面的过去分词不变。一般现在时的被动语态为:主+am / is / are (not)+过去分词一般过去时的被动语态为:主+was / were +过去分词例如:我们学过的was / were born 生于,就是一个被动语态.born是个过去分词(bear)-When were you born ? -I was born in 1989. 现在进行时被动语态的构成为: 主语+is / am / are + being +过去分词现在完成时被动语态的构成为: 主语+have / has +been +过去分词情态动词的被动语态: 情态动词+be+过去分词一般将来时的被动语态: 主语+will +be +过去分词过去将来时的被动语态: 主语+would / should + be +过去分词过去进行时的被动语态: 主语+was / were + being +过去分词过去完成时的被动语态: 主语+had + been +过去分词三、被动语态的用法:(1)不知道或没有必要说明动作的执行者是谁,不用by+动作执行者短语 Football is played widely all over the world. 全世界都广泛地踢足球。(2)强调动作的承受者,这时应用by短语。The bank was robbed yesterday afternoon. 昨天下午这家银行遭到抢劫。(3)作客观说明时,常采用一种被动语态句型It is reported that about twenty children have died of flu in the USA.据报道美国大约二十名儿童死于流感。四、主动语态的句子变为被动语态的方法是:(1)把原句中的宾语变为主语(2)动词改为被动形式,即be+过去分词(3)原来的主语,如果需要的话,放在by后面,如果没必要,可省略。请看下表:主动语态 被动语态They make trains in Zhuzhou. They use this key for locking the classroom door.Many people speak English.He wrote a letter.They are building a road. Trains are made in Zhuzhou.This key is used for locking the classroom door(by them).English is spoken by many people.A letter was written by him.A road is being built (by them).Unit4虚拟语气:如果我们所说的不是事实,也不是要求、命令、劝告等,而只是一种假设、愿望、建议或是一种实现不了的空想就用虚拟语气注意:条件句分两种,真实条件句和虚拟条件句。只有在虚拟(非真实)条件句中,才用虚拟语气,而在真实条件句中,要用陈述语气。请比较:(1)If it is sunny tomorrow , we’ll go to the zoo. 如果明天天气好,我们将会去公园。在这句话中,明天天气好是完全有可能实现的,并非虚拟、幻想,因此是真实条件句。在本句中,适用“主将从现。”(2)If I were you , I would go at once. (如果我是你的话,我立刻就走。)在这句话中,条件句,“如果我是你”,但事实上,我不可能成为你,这只是假设的情况,没有实现的可能。当条件实现的可能性很小,甚至可以说没有时,就需要用虚拟语气来表示,动词发生了变化。也就是说虚拟语气表示和现实的事实相反时,从句用一般过时。主句用 “should/would/could/ might +动词原形。1.If I had time, I would go for a walk.2.If I were invited, I would go to the dinner party.3.If I won a million dollars in the lottery, I would put it in the bank.知识点2. He doesn’t know if he should bring a present.此处if表示“是否”,引导宾语从句。Should此处表示“应该”。不是虚拟语气。E.g.1. I don’t know if I should go to the party. 2.If I have enough money, I will go to Hainan .知识点3.If I were you , I’d wear a shirt and tie. if 引导的条件状语从句表示与现在事实相反的虚拟语气时,be动词只能用were,而不能用was。E.g. If he were here, he would not agree with you .知识点4. I don’t have a present. What if everyone else brings a present?What if… “如果……怎么办?”相当于 what would happen if…E.g. What shall I do if it snows?知识点5.Well, dogs can be a lot of trouble.Trouble 麻烦事 ,名词常用搭配 :get (sb)into trouble get out of trouble what’s the trouble “if”引导的条件句。Unit5It must be--- (肯定是,100%)It might/could be… (有可能,20-80%)It can’t be… (肯定不是,0%) 程度 肯定句 否定句 疑问句must ★ ★ ★ ★ √ may ★ ★ ★ √ √ might/could ★ ★ √√ √ √can’tcan ★ √ √1. --- Whose book is this? --- It must be Mary’s. (肯定; 一定) It must belong to Mary.2. --- Whose French book is this? --- It could be Ali’s. She studies French. (可能)3. The hair band might belong to Linda. might be Linda’s. (可能)4. The T-shirt can’t be John’s. (不可能) It’s much too small for him.练习:1. --- Whose pen is this? --- It ____ Liu Mei because I saw her use it the other day. A. can’t be B. might be C. must belong to 2. That’s a piece of good news. They ___ glad to hear that. A. can be B. might be C. must be D. can’t be 3. Mary ______ be in Paris. I saw her in town only a few minutes ago. A. mustn’t B. shouldn’t C. can’t D. may notUnit6定语从句1. who 指人,作主语或宾语 (作宾语可省略)The man who I talked with is our teacher.A person who steals things is called a thief.2. whom指人,作宾语 (作宾语可省略,如介词提前则不能省) The man (whom/who) I nodded to is Mr. Li.The man to whom I nodded is Professor Li.3. which 指物,作主语或宾语 (作宾语可省略, 如介词提前则不能省) These are the trees which were planted last year.This recorder (which) he is using is made in Japan. Is this the library (which) you borrow books from?Is this the library from which you borrow books? 4. that 指人/物,作主语或宾语 (作宾语可省略)A plane is a machine. It can fly.→A plane is a machine that can fly.He is the man. I told you about him. →He is the man (that) I told you about.The scientist is very famous in the world. We met her yesterday. ↓The scientist Ø we met yesterday is very famous in the world. who whom thatThe dress is new. She is wearing it. ↓The dress that she is wearing is new. which Ø (3) He is the kind person. I have ever worked with him. ↓He is the kind person that I have ever worked with. who whom ØThis is the best film. I have ever seen this film. ↓This is the best film that I have ever seen. Ø在选择引导定语从句的关系代词时,有如下要点:1 由于关系代词在主句与从句间既起到联系作用,又在从句中充当一个成分,因此, 要正确判断关系代词在从句中的功能,如作主语还是宾语等。2 当先行词指人时,关系代词可用who(做主语,宾语),that(做主语,宾语),whom(作宾语),whose(作定语)3 当先行词指物时,关系代词可用that(做主语,宾语),which(做主语,宾语)4 再定语从句中,作宾语的关系代词长可省略,但在介词后面的关系代词不能省略。指人时,介词后只用whom,指物时,介词后只用which。5 在非限制性定语从句中,指人时,只用who,指物时,只用which。1.定语从句中that与who、which的区别 2.定语从句中关系词的省略 典型例题1. The first job ________I found was to be a cleaner.A. where B. why C. which D. that解析:指事物的先行词前有序数词修饰时,只能用关系代词that。故本题的正确答案是D。2. I don’t think history is as interesting as English.(改为同义词)I think history is ___________ interesting _________ English.解析:答案是:less; than。意思是“我认为历史不如英语有趣”。3. The woman who is wearing the hat is my mother.(改为同义句)The woman ________ the hat is my mother.解析:读题后可知:上句含义是“戴帽子的那个妇女旭我的妈妈”,对应下句,可知空格处应填“戴”,故正确答案是in。选择填空1. The poor boy ________ lost both his parents last year is called Mike.A.which B.what C.who D./2. The bridge ________ has been there for nearly fifty years still looks nice.A.which B.what C./ D.who3. I’m one of the students _______well in English in my class.A.who does B.who do C.which does D.who did4. Is this factory ________ some foreign friends visited last Friday?A.that B.where C.which D.the one5. All______ they have done is good for us.A.what B.which C.why D.thatUnit7表达意愿的几个基本句子a. _______ _______ _________ go to France some day.b. _______ _______ _________ go to France some day.c. _______ _______ _________ go to France some day.d. _______ _______ _________ go to France some day.答案:a. I hope to b. I’d like to c. I’d love to d. I want toShe would like to go to New York. (对划线部分提问)答案:Where would she like to go?注意:where在本句中为副词,go后面不能再加to,而Which city would she like to go to? 中which为代词。九年级英语复习---语法讲解(Units8-15)Unit81、短语动词小结常见短语动词结构有下面几种: 1.动词+副词 如:give up 放弃 turn off 关掉 stay up 熬夜 这种结构有时相当于及物动词,如果其宾语是代词,就必须放在动词和副词之间,如果是名词,则既可插在动词和副词之间,也可放 在短语动词后。 2. 动词+介词 如:listen of 听 look at 看 belong to 属于 这种结构相当于及物动词,后面跟宾语。 3. 动词+副词+介词 如:come up with 提出,想出 run out of 用完,耗尽 4. 动词+名词(介词) 如:take part in参加 catch hold of 抓住2、倒装句not only … but (also) … 不但… 而且… 用来连接两个并列的成分 (1)引导以 not only …but (also)… 开头的句子往往引起部分倒装。 因此 ⑴Not only do I feel good but (also)…. 是倒装句。也是说得要 把前面的句子中的助动词或者是情态动词放在主语的前面。如: ①Not only can I do it but (also) I can do best. 我不仅能做到而且做得最好。 ⑵Not only…but (also)… 接两主语时,谓语动词随后面的主语人称和数的变化 也就是就近原则 如: ①Not only Lily but (also) you like cat. 不仅莉莉而且你也喜欢猫。 ②Not only you but (also) Lily likes cat. 不仅你而且莉莉喜欢猫。 常见的就近原则的结构有: Neither… nor…即不…也不… (两者都不) Neither you nor I like him. 我和你都不喜欢他。 Either… or… 不是…就是… (两者中的一个) Either Lily or you are a student. Not only …but (also)… There be
优质英语培训问答知识库