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名词性从句

名词性从句
名词性从句

授课教案

授课教师:班主任:胡袁鑫

授课时间: 2014 年月日 9:00 时— 11:15 时

授课学案授课教师:班主任:胡袁鑫

学生作业授课教师:班主任:胡袁鑫

名词性从句

名词性从句 在句子中起名词作用的各种从句,统称为名词性从句。根据它们在句中所起的语法作用,这类从句分别称为主语从句、 1.作动词的宾语 ①大部分宾语从句直接跟在动词后: He doesn’t know where the post office is. 他不知道邮局在哪里。 ②有些宾语从句前要有间接宾语: He told me what I should read. 他已告诉我应该读些什么。 ③如果宾语从句后面有宾语补足语,要使用形式宾语it,而将从句放到补足语后面: I thought it strange that he failed to call me. ④在think, believe, suppose, expect等动词之后的宾语从句中,如果从句谓语是否定含义,则不用否定形式,而将主句谓 语动词think等变为否定形式: I don’t think you are right. *⑤在think, believe, imagine, suppose, guess, hope 等动词以及I’m afraid等后,可用so代替一个肯定的宾语从句,还可用not代替一个否定的宾语从句: E.g. --- Do you believe it will clear up? 你以为天气会转晴吗? --- I believe so. 我认为会这样。 (--- I don’t believe so./I believe not.) 我认为不会这样。 -Do you think it’s going to rain over the weekend? -. A.I don’t believe B.I don’t believe it C.I believe not so D.I believe not -Don’t you think Jack’s health has been ruined by over drinking? -Yes, he told me himself. A.the thing B.it C.so D.the fact 2. 作介词的宾语 ①that引导的宾语从句只有在except, in, but, besides等少数介词后偶尔可能用到: Your article is all right except that it is too long. 你的文章挺好,只是太长了。 Did she say anything about how we should do the work? 关于这工作我们该怎么做她说什么没有? *②有时在介词和其宾语从句的中间加形式宾语it; 如短语动词answer for(担保)、count on (期待)、depend on、insist on、see to(负责,确保)等后接that引导的宾语从句时,必须冠以形式宾语it。 I’ll see to it that everything is ready. 我将负责把一切准备好。 ③介词后的宾语从句不能由if引导,而要用whether. I’m counting on it that you will come.我期待着你的到来。 She’ll see to it that he goes ahead.她将确保他继续进行。 3. 作形容词的宾语 在某些形容词(如afra id“恐怕”,sure“确信”,certain“肯定”,confident“相信”等)作表语时,可接一个that引导的宾语从句(也有人认为是状语从句): I’m afraid (that) I have made a mistake.恐怕我犯了一个错误。 表语从句 表语从句放在连系动词(如be, seem, remain等)后: The question is whether we should accept their invitation. 问题是我们是否应该接受他们的邀请。 1.when, where, why, because, how 等引导的从句作This is 和That is 的表语 时,表示具体的时间、地点、原因、方式等: This is why we put off the meeting. 这就是我们推迟会议的原因。 This is why…=>This is the reason why… This is where…=>This is the place where… This is when…=>This is the time when… This is how…=>Thi s is the way(that/in which)… 2.主语是reason时,表语从句常用that, 不用because; The reason for his absence was that he was ill。 他缺席的原因是病了。 3.as, as if, because 有时也可引导表语从句; Things were not as they seemed to be. 情况并不是看上去的那个样子。 It looks as if it is (或:were) going to rain.看起来天要下雨。 ▲注意:as if引导的表语从句有时也可用虚拟语气,表示可能性小。 主语从句 主语从句在复合句中作句子的主语。引导主语从句的词有连词that, whether, 连接代词who, what which; 连接副词when, where, how, why等。 如:1) What is needed for the space trip is careful preparation. 2) Whether wild life can be well protected is of great importance. 3) Who will go makes no difference. 1.主语从句可以直接放在句首;也可用it作形式主语,而将从句放在句末。 如:That light travels in straight lines in known to all. It’s known to all that light travels in straight lines. 众所周知,光沿直线运行。 When we shall have our sports meet is still a question.

What和that在名词性从句中的用法区别

What 和that 在名词性从句中的用法区别 What 和that 都可以引导名词性从句。 一.在引导名词性从句时,从属连词that一般要注意三个不(three nos): 1.不省略(no ellipsis) 当从属连词that引导主语从句、表语从句和同位语从句时,that不省略。 Eg. 1) That he was able to come made us happy.(That 引导主语从句不可省略) 2)The truth is that I didn’t go there. (that引导表语从句不可省略) 3)The news that our team has won is true. (that引导同位语从句不可省略) 但在非正式文体中that 引导宾语从句时可以省略,除下列两种情况外: that在宾语从句中不能省略的情况. (1). 在主+谓+it(形式宾语)+宾补+that,从句(真正宾语) 的句型中不省略. Eg: 4) He made it quite clear that he preferred to study English.(that不可以省略) 他很明确地说他宁愿学习英语。 (2). 由连词and连接的两个由that引导的宾语从句中, 则第二个宾语从句前的that不省略。Eg: 5) He told me that he would come and that he would come on time.(第一个That可以省略,但第二个that不可以省略。)他告诉我他将来而且他将准时来。 2.不作成分(no component) that 在名词性从句中不作任何句子成分。 Eg. 6)Sydney kept his promise that he would always do anything he could for Lucie to make sure of her happiness.(that在句中引导同位语从句,但在句中不作任何成分) 7))That you don’t like him is none of my business. (that在句中引导主语从句,但在句中不作任 何成分,也不省略) 3.没词义(no meaning) that 在名词性从句中没有汉语意思。 Eg. 8)That she is a rich woman is known to us. (that在句中引导主语从句,但在句中没有汉语意义) 她是一个很有钱的女子,这一点我们都知道。 9)The thought that he might fail in the exam worried him. (that在句中引导同位语从句,但在句中没有汉语意义) 他也许会考试失败,这一想法使他很担心。 二.在引导名词性从句时,What一般要注意一个不(one no),一个有(meaning),一个作(component): 1.不省略 what 引导名词性从句时,what 在句中不省略。这一用法与that 用法不尽相同。 eg. 10) What I had for breakfast today was rice with egg.(what 在句中引导主语从句,what 不省略) 11)----I think it’s going to be a big problem. ----Yes , it could be . ----I wonder what we can do about. (what在句中引导宾语从句,但在句中不省略) 2.有词义 what 引导名词性从句时,有词义。一般是“----的东西/事情/话等”这一用法与that 用法不一样eg. 1) This is what she wanted to show us. (what在句中引导表语从句,在句中有词义,意思是“----的东西、事情)这是她想让我们看的东西。 12)What the teacher said had a good effect on the children. (what在句中引导主语从句,在句中有词义,意思是“----的东西、事情)老师所说的话对孩子们有很好的作用。 3.作成分

(英语)英语名词性从句专项

(英语)英语名词性从句专项 一、初中英语名词性从句 1.It matters little ______ a man dies, but _____ matters much is ______ he lives. A. how; what; how B. how; it; how C. why; it; why D. that; what; that 【答案】 A 【解析】【分析】句意:一个人如何死去并不重要,重要的是他如何生活。it为形式主语,how从句为真正的主语。What matters much (=the thing that matters much)。第一个how引导的是一个主语从句;it作形式主语;what引导的是主语从句;第二个how引导的是表语从句。故选A。 【点评】考查名词性从句,本题涉及主语从句和表语从句的应用。 2.While some behaviors may seem strange to you, remember you consider normal probably seems just as unusual to others. A. it; that B. what; that C. that; what D. which; that 【答案】 C 【解析】【分析】句意:虽然有些行为对你来说可能很奇怪,但请记住,你认为正常的行为对别人来说可能也不寻常。第一空为宾语从句,从句结构完整用that起连接作用,第二空为主语从句,从句中consider缺少宾语,应该用what,故选C。 【点评】考查名词性从句,本题涉及that引导的宾语从句和what引导的主语从句。 3.___ surprised me most was ____the girl passed the driver test. A. That; that B. What; how C. What; that D. That; why 【答案】 C 【解析】【分析】句意:最让我吃惊的是那个女孩通过了驾驶考试。___ surprised me most是一个主语从句,从句中缺少主语,故填what;____the girl passed the driver test 是一个表语从句,句中不缺少成分,故填that。因此选C。 【点评】考查名词性从句,本题涉及what引导的主语从句和that引导的表语从句。4._______ are playing an important part is well known to us all. A. That who B. Those who C. Who that D. Who 【答案】 D 【解析】【分析】考查主语从句。句意:谁起着重要作用,这是众所周知的。主语从句缺少引导词,从句缺少主语,故选D。 5.Has it been announced ______? A. when are the planes to take off B. that are the planes to take off

名词性从句与定语从句区别练习

名词性从句专项练习Ⅱ 1. Police have found _________ appears to be the lost ancient statue. 2. _______ makes the book so extraordinary is the creative imagination of the writer. 3. Experts believe _______ people can waste less food by shopping only when it is necessary. 4. _________ struck me most in the movie was the father’s deep love his son. 5. It’s good to know _______ the dogs will be well cared for while we away. 6. the only way to succeed at the highest level is to have total belief _____ you are better than anyone else on the sports field. 7. Do not let any failures discourage you, for you can never tell _____ close you may be to victory. 8. From space, the earth looks blue. This is about seventy-one percent of its surface is covered by water. 9. _____ one of you breaks the window will have to pay for it. 10. It remains to be seen _____ the newly formed committee’s policy be put into practice. 11. It is by no means clear ______ the president can do to end the strike. 12. The limits of a person’s intelligence, generally speaking, are fixed at birth, but ____ he reached these limits will depend on his environment.

【英语】英语名词性从句专题训练答案

【英语】英语名词性从句专题训练答案 一、初中英语名词性从句 1.______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. Who 【答案】 D 【解析】【分析】句意:谁将负责这次会议还没有决定。______ will be in charge of the meeting是一个主语从句,从句中缺少主语,指人,故选D。 【点评】考查名词性从句,本题涉及who引导的主语从句。 2._______ are playing an important part is well known to us all. A. That who B. Those who C. Who that D. Who 【答案】 D 【解析】【分析】考查主语从句。句意:谁起着重要作用,这是众所周知的。主语从句缺少引导词,从句缺少主语,故选D。 3.—Tell me something about your adventure in the rainforest, please. — We lost our way in the forest and ___ made matters worse was ___ night began to fall. A. what; that B. it; that C. it; because D. what; because 【答案】 A 【解析】【分析】考查名词性从句的连接词。第一空what作主语从句的主语;第二空为表语从句的that。 4._______ you don't like him is none of my business. A. What B. Who C. That D. Whether 【答案】 C 【解析】【分析】句意:你不喜欢他,跟我没有什么关系。you don't like him为主语从句,其内容已经是完整的,所以用that,且引导主语从句的that不能省略。 5.________ the weather will not clear up until next week is bad news for us. A. As B. If C. Whether D. That 【答案】 D 【解析】【分析】考查主语从句。句意:直到下周天气才放晴,这对我们来说是坏消息。

3 第三讲 名词性从句

第三讲名词性从句 语法填空 【典题试做】 1.(2019·全国卷Ⅰ)While they are rare north of 88°,there is evidence that they range all the way across the Arctic, and as far south as James Bay in Canada. 2.(2018·全国卷Ⅲ)I’m not sure who is more frightened, me or the female gorilla(大猩猩) that suddenly appears out of nowhere. 3.( 全国卷Ⅱ )As natural architects, the Pueblo Indians figured out exactly how thick the adobe walls needed to be to make the cycle work on most days. 语法填空对名词性从句的考查集中在引导词的选择上,其中what与that, how, if与whether是考查的重点。 短文改错 【典题试做】 1.(全国卷Ⅰ)My uncle is the owner of a restaurant close to that I live. that→where 2.(全国卷Ⅱ)After looking at the toy for some time, he turned around and found where his parents were missing. where→that或去掉where 1.从属连词与连接副词之间的错用; 2.连接代词(what, which和who等)之间的错用; 3.从属连词that与连接代词(尤其是what)之间的错用以及that与whether/if之间的错用; 4.从属连词that的缺失或多余。 主语从句 1.主语从句的引导词 引导词作用 that, whether, if 只起连接作用,不在从句中作成分,但一般不可省略。当主语从句位于句首时,常用whether引导,不用if

名词性从句

名词性从句1 名词性从句:在句子中起到一个名词的作用,并充当句子的主语、宾语、表语或同位语的从句。分别称之为主语从句、表语从句、宾语从句和同位语从句。了解并正确使用关联词是写好名词性从句的关键。判断依据: 1.看在从句中有无具体意义; 2.看在从句中有无充当成分。如有,是充当什么成分 常见的关联词:which, how, why, whenever, what, whether who, when, whom, whose, that,whatever, whoever, where, whomever, wherever,whichever,if,however 一、名词性从句的关联词的分类、词义和用法见下表: 二、从句中that和what的区别 连词that只起连接作用,在从句中不作成分,不含有疑问意义,而what在从句中作成分,常含有疑问意义。表“…的东西/事情/样子/的话/的地方”,在从句中充当主语、宾语、表语。主语从句、表语从句、同位语从句中用that但不能省略。 1. I wonder if this is ______you are looking for. 2. Our school is quite different from _______ it was before. 3. Father made a promise ______ if I passed the examination he would buy me a computer. I can’t understand is why he has changed his mind. earth is round is known to us all. 6. Is _____ he told us true 7. I have no doubt _____ he will come. 8. I have no idea _____ he did that afternoon. 三、who 与 whoever ;what 与 whatever whoever, whatever等引导的名词性从句不含有疑问意义,相当于名词后加一个定语从句,而who, what等引导的名词性从句都含有疑问意义。

经典英语名词性从句

名词性从句在复合句中具有名词的性质的作主语、表语、同位语、宾语的从句叫名词性从句。因此,我们把主语从句、表语从句、同位语从句和宾语从句这四种从句统称为名词性从句。 主语从句(subject clauses)在复合句中起主语作用的从句叫主语从句。引导主语从句的词有从属连词、、关系代词、连接副词等。引导主语从句的关联词有从属连词that、whether,关系代词:who, what, which, whom, whose, whatever, whoever, whomever, whichever;关系副词:when, where, how, why, however, whenever, wherever等。 That you don’t like him is none of my business.你不喜欢她不管我的事。 What he said is true. 他说的是真的。 Do you remember how he arrived almost at the end of the party?你记得他几乎是在宴会快结束时才到的吗? This party's really where it's at, man! 啊,这个晚会真棒!Tell us how you fulfilled the heavy task ahead of schedule.告诉我们,你们是怎样提前完成这一艰巨任务的。 We have reason to believe that the fighting on the border may develop into a full-blown war. (喻)我们有理由相信边境上的冲突可能发展成一场全面战争。 He said that he would come. 他说他要来。

3.3名词性从句练习(一)

名词性从句练习(一) 一、单句语法填空 1.________ she was invited to the ball made her very happy. 2.Children should be reminded of ________ they should do in public places.3.Dick enjoys painting but he knows the fact ________ he doesn't have what it takes to be a professional. 4.Success partially depends on ________ you have the patience to do simple things perfectly. 5.I lost my cell phone yesterday.Can you tell me ________ I can buy one? 6.It never occurred to me ________ you could succeed in persuading him to change his mind. 7.________ breaks the law will be punished. 8.She will give ________ needs help a warm support. 9.I have no idea ________ the girl is doing in her room now. 10.________ is well known to everyone, I should say, is that a man becomes learned by asking questions. 11.Exactly ________ the potato was introduced into Europe is uncertain, but it was probably around 1565. 12.It shocked the world ________ the United States withdrew from some major agreements it had been committed to, including the 2015 Paris Agreement on climate change and the 2015 Iran Nuclear Deal. 13.I need help now! I have to fix a leaking pipe in my bathroom but I'm not sure ________ to begin. 14.Forty grams of meat per day is ________ people should consume in order to stay fit. 15.The famous player tried again and again after each failure.That's ________ he succeeded at last. 16.The retired engineer is showing ________ the wheelchair climbs stairs, which all the curious visitors want to know.

名词性从句----绝对经典系列

名词性从句Noun Clauses 一.基础定义和连接词 1. 名词性从句:就是在句子中起名词作用的从句。 2. 名词性从句包括4种从句:主语从句、宾语从句、表语从句、同位语从句。从高考的考查的实际情况来看,名词性从句考得最多的是宾语从句,其次是主语从句,再次是表语从句,而同位语从句则很少考查。 [判断]以下从句类型: 1) The truth is that I have been there.( ) 2) The fact that she was late surprised us.( ) 3) That he will come is certa in.( ) 4) I know that he will come.( ) 3. 名词性从句的连接词有: 从属连词(不做成分):that (无意义)‘whether, if(是否)…. 连接代词(在从句中做主,宾,表,定):what, who, whom, whose, which, whatever, whoever, whichever 连接副词(在从句中做状语):whe n, where, how , why 二.名词性从句位置和特点主语从句:1.可直接放在句首。 2. 主语较长时通常用It作形式主语,而将主语从句放在后面。 1) . ___ he knows Japaneses known to all. 2) . _____ surprised me was to see him here . 3) ________ he is comingdoesn' t matter much. 4) It remains a secret _____ they climbed up the mountain. 宾语从句:可做动词,介词和部分(表情感态度的)形容词词的宾语。 I want to know whe n we will start. Everyth ing depe nds on whether we have eno ugh time. I ' imfraid (that) I have made a mistake. 注意:如果宾语从句后面有宾补要使用it作形式宾语而将从句放到宾补后面。 常见的可以接it形式宾语的动词有:make, think, find, feel, consider等 He made it clear that he was determined to resign . I thought it strange that he didn ' t call me. 表语从句: 1. 位于系动词动词之后。常见此类系动词有be, look , seem,即pear等 It seems that she has known the truth. It looks as if it is going to rain. This school is no Ion ger what it was before. 2. 主语是reason时,表语从句常用that引导,不用because引导。

who 与 whoever 引导名词性从句的区别

v1.0 可编辑可修改 who 与 whoever 引导名词性从句的区别 book can be of great help to wants to do the job. A. who B. whomever C. no matter who D. whoever 2. ______ will be sent to work there hasn’t been decided yet. 3. _________ will be sent to work there will be given a large house. 4. _______ gains the most points wins the competition. 5. I'll teach English to _________ wants to learn it. 6. I feel sorry for _________ marries him! leaves the room last ought to turn off the lights. A. Anyone B. The person C. Whoever D. Who 8. Could I speak to_______ is in charge of International Sales ,please A.anyone B.someone C.whoever D.no matter who 9. ______wants to stay in a hotel has to pay their own way. (08浙江卷4) A. Anyone B. The one C. Whoever D. Who 1

英语名词性从句知识归纳

英语名词性从句知识归纳 Prepared on 22 November 2020

名词性从句知识归纳 名词性从句是指在句子中相当于名词的从句,主要包括主语从句、宾语从句、表语从句和同位语从句。名词性从句不是修饰性从句,而是复合句中的主干。 . That the boy failed again in the exam disappointed his mother. (主语从句) I know that he is writing his composition in his room. (宾语从句) The question is how we can finish it on time. (表语从句) The fact that some Chinese are still poor is really a great problem. (同位语从句) 一、宾语从句---及物动词、介词、部分形容词(certain, sure, glad, afraid, frightened, happy, pleased, sad, sorry, surprised, upset, satisfied等)后. I believe (that) he is honest. (that不充当从句内的任何成分,一般情况可省略) I’m glad that you are satisfied with your job. (that不充当从句内的任何成分) He doesn’t care if/whether it isn’t a fine day. (if/whether不充当从句内的任何成分) Please tell me what you want. (what充当从句内的宾语)

名词性从句的用法

名词性从句的用法(Noun Clauses) Step1: 名词性从句的种类为4种:(1)主语从句.(2)宾语从句.(3)表语从句.(4)同位语从句. 一. 主语从句的用法. 特点:相当于名词的功能,在复合句中作主句的主语. (一)由“that”引导的主语从句. 特点:(1)“that”没有实在意义.(2)不可省略.(3)后接完整的句子,共同作主语,谓语动词用单数. (4)也可用“it”作形式主语,而把主语从句放在句末. E g:That the earth goes round the sun is known to all of us. 主语系动词表语 译文:地球绕着太阳转是众所周知的. E g:It’s great that you got a scholarship 真正主语 译文:你拿了奖学金真是太好了. (二)由“whether”引导的主语从句. 特点:(1)“whether”有意义, 表示“是否”.(2)不可省略.(3)后接完整的句子,共同作主语,谓语动词用单数. (4)往往和“or not”连接. (5)也可用“it”作形式主语,而把主语从句放在句末. E g:Whether he will come or not is unknown 主语 译文:他来不来还不知道. E g:Whether he can help me or not doesn’t matter too much. 主语 =It doesn’t matter too much w hether he can help me or not 译文:他是否要帮助我关系不大/无关紧要. (三)由“特殊疑问词代词和疑问副词”引导的主语从句. 1,疑问代词“what”引导的主语从句 特点:(1)“what”有意义, 表示“什么”.(2)不可省略.(3)后接完整的句子,共同作主语,谓语动词用单数. (4)“what”在从句中作及物动词的宾语,或者在从句中作主语. E g:What I told you is between you and me. 主语 译文:我告诉你的是个秘密. E g:What’s important is that one strives to achieve a goal. 主语 译文:重要的是为达到目标而不懈努力. E g:What bothers me is that I have no time. 主语 译文:让我困扰的是我没有时间. 2,疑问代词“whatever”引导的主语从句 特点:(1)“whatever”有意义, 表示“无论什么”.(2)不可省略.(3)后接完整的句子,共同作主语,谓语动词用单数. (4)“whatever”在从句中作及物动词的宾语,或者在从句中作主语. E g:Whatever is worth doing at all is worth doing well.

名词性从句whoever与no matter who有何区别

whoever与no matter who有何区别 有这样一道题: I will give the ticket to __________ wants it. A. whoever B. no matter who C. whatever D. no matter what 此题应选 A。容易误选B。选项C,D都是错的,因为从句意上看,“想要票的”应 该是“人”(whoever)而不能是“东西”(whatever)。至于为什么选 whoever 而不选no matter who,这要从它们在句中引导的成分说起: no matter who通常只能引导状语从句,而不能引导名词性从句。而 whoever 既可引导 名词性从句(= anyone that)也可引导状语从句(=no matter who): 如何理解宾语从句的时态呼应 理解宾语从句的时态响应,应注意以下几种情况: 1. 无需呼应的情况:若主句谓语动词的时态为现在时或将来时,宾语从句的谓语动词 可根据句意的需要使用任何所需要的时态。如: He knows where they live. 他知道他们住哪里。 No one knows where he was born. 没有人知道他出生于何地。 Tom says that he’ll never get married. 汤姆说他永远不结婚。 2. 主句为过去时的情况:若主句谓语动词为过去时,宾语从句的谓语动词应用相应的 过去时态。如: She asked me if I’d slept well. 她问我睡得好不好。 I didn’t know whether they liked the place. 我不知道他们是否喜欢这个地方。 He said he was going to accompany her home. 他说他将陪她回家。 当主句谓语动词为过去时,即使宾语从句所表示的时间是现在,通常也用过去时。如:Oh! I didn’t know you were here. 啊! 我不知道你在这里。(you were here指说话的当时)

(英语)英语名词性从句试题经典

(英语)英语名词性从句试题经典 一、初中英语名词性从句 1.______ will be in charge of the meeting has not been decided yet. A. What B. Which C. That D. Who 【答案】 D 【解析】【分析】句意:谁将负责这次会议还没有决定。______ will be in charge of the meeting是一个主语从句,从句中缺少主语,指人,故选D。 【点评】考查名词性从句,本题涉及who引导的主语从句。 2. is clear to the members of the committee is that the President will not give in to their demands. A. Who B. It C. As D. What 【答案】 D 【解析】【分析】句意:委员会成员清楚的是,总统不会向他们的要求让步。that the President will not give in to their demands.这个句子作表语; is clear to the members of the committee这是主语从句,这里缺少主语从句的连接词,并且连接词在句中作主语,it是代词,不是了;连接词,故排除B;as作主语时,是在定语从句中,故排除C;who指人,根据表语指的事情,不是人,故排除A;what在主语从句中可以作主语或宾语,指事,符合句意,故选D。 【点评】考查名词性从句,本题涉及what引导的主语从句。 3.Has it been announced ______? A. when are the planes to take off B. that are the planes to take off C. where are the planes to take off D. when the planes are to take off 【答案】 D 【解析】【分析】句意: 飞机什么时候起飞已经宣布了吗?此处是when引导的主语从句,且要用陈述句语序,故选D。 【点评】考查名词性从句,it作形式主语,关系副词when引导的从句作真正的主语。 4.In the past decade, our education system too much on grades. However, grades have a direct connection with future success is still a question. A. focused; whether B. focused; if C. has focused; whether D. has focused; if 【答案】 C 【解析】【分析】考查时态和主语从句。根据In the past decade,在最近的几十年里,可知句子用现在完成时态,our education system是句子的主语,单数形式,所以第一空填has focused;第二空是主语从句做主语,if是否,不能引导主语从句,所以第二空填whether。故选C。

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