主语从句&宾语从句
一、名词性从句的分类:
主语从句、宾语从句、表语从句、同位语从句
二、主语从句
(一)定义:用作主语的从句叫做主语从句。
(二)引导主语从句的关联词有三类: (1)从属连词that、whether。如:
eg: That they were in truth sisters was clear from the facial resemblance between them.
很明显,她们确是亲姐妹,她们的脸型很相似。 eg: Whether he’ll come here isn’t clear.
他是否会来这里还不清楚。 从属连词:that, whether等.
that 引导主语从句只起引导作用,本身无实际意义,在主语从句中不充当任何成分,但不能省略。
由whether及其他连词引导的主语从句放在句首,句后都可。 If只能放在句中。
造句:
1、很明显他是个好人。
2、他通过了考试让妈妈很高兴。
3、天气是否会转晴还不确定。 (2)(特殊疑问词)连接代词who, whom, whose, what, which, whoever, whatever, whichever 如:
__________watch was lost is unknown.
__________she did is not yet known. 她干了什么尚不清楚。 __________side will win is not clear.
__________comes is welcome. 不论谁来都欢迎。 __________ was said has left us much to think. 这里说的话都应当保密。
造句:
1、我们需要的是时间。
2、谁将成为我们的班长还没有决定。
3、哪本书更好还不知道。
(3)(特殊疑问词)连接副词 where, when, how, why,wherever,whenever,however。 ___________ he did it remains a mystery.
eg: When they will start is not known yet. eg: How this happened is not clear to anyone. 这事怎样发生的,谁也不清楚 eg: Wherever you are is my home ---- my only home. 你所在的任何地方就是我的家----我唯一的家。 eg: However good you are is nonsense. 造句:
1、他是怎样成为一名老师的还不清楚。
2、你无论什么时候来都不重要。
(三)it 作主语从句的形式主语
1、主语从句能用it作形式上的主语。常以it作形式主语的句型有:
A. It + be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如: eg: It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。 造句:
很可能他把一切都告诉她了。
B. It + be+名词词组(no wonder, an honor, a good thing, a pity, no surprise, etc.)+that从句。如:
eg: It’s no surprise that our team should have won the game. 我们没赢这场比赛真意外。 造句:
很遗憾我们不能去。
C. It + be+过去分词(said, reported, thought, expected, decided, announced, arranged, etc.)+that从句。如:
It is reported that China has sent another man-made earth satellite into orbit. 据报道中国又成功地发射了一颗人造地球卫星。 造句:
据说格林先生已经到了北京。
D. It+ seem, happen等不及物动词及短语+that从句。如:
eg: It seems that Alice is not coming to the party at all. Alice似乎不来参加晚会。 eg: It happened that I was out that day. 碰巧我那天外出了。
E. It+ doesn’t matter (makes no difference, etc.)+连接代词或连接副词引起的主语从句。如: eg: It doesn’t matter whether she will come or not. 她是否来这无关紧要。
eg: It makes no difference where we shall have the meeting. 我们在哪里开会毫无区别。
F. 当that引导的主语从句出现在疑问句中时,要以it作形式主语,而把主语从句后置。如:
eg: Is it true that the scientist will give us a lecture next week? 下周那位科学家将给我们作报告是真的吗?
2、注意连接代词whoever, whatever, whichever等引导主语从句的含义。 eg: Whoever comes will be welcome. (whoever=the person who) 来的人将受到欢迎。
eg: Whatever he did was right. (whatever=the thing that) 他所做的事情是正确的。
eg: Whichever of you comes in will receive a prize.
(whichever=anyone of you who) 你们当中不论哪个进来将会得到奖励。
3、主语从句需注意的问题 1)主语从句中用陈述语序
eg: What she is afraid of is their taking her to Paris. 她害怕的是他们带她去巴黎。 2)主语从句后谓语动词用第三人称单数 eg: That they haven’t phoned is strange. 那些他们没有打电话的是陌生人。 3)that引导的主语从句中,that不可被省略 eg: That price will go up is certain.
确定那价格会上涨。
三、宾语从句
(一)宾语从句的定义
宾语从句在复合句中起宾语的作用,可以作动词的宾语,也可以做介词的宾语。 作动词的宾语:
eg: I heard that he would come here later on.
主语 谓语动词 一个句子作宾语 作介词的宾语:
He said nothing about who broke the window last night.
主语 谓语动词 代词作动词的宾语 介词 一个句子作介词的宾语
(二)宾语从句中引导词(连接词)的用法 1、在复合句中作主句的宾语,引导词有:
连词:that (that 常可省略),whether, if 代词:who, whose, what ,which
副词:when ,where, how, why 等。
①连词:
eg: He told me (that he would) go to the college the next year. 他告诉我他明年上大学.
eg: I don’t know if there will be a bus any more. 我不知道是否还会有公交车.
eg: Nobody knew whether he could pass the exam. 没有人知道他是否会通过考试. that引导的宾语从句(在非正式场合that可以省略) 2、可跟that从句做宾语的动词有:
say, think, insist, wish, hope, demand, imagine, wonder, know, suppose, see, believe, agree, admit, deny, expect, explain, order, command, feel, dream, suggest, hear, mean, notice, prefer, request, require, propose, declare, report等。
eg: The boy believes that he will travel through space to other planets. 3、Attention:宾语从句的否定转移
1)当主句谓语动词是 think, believe, suppose, expect 等词,而宾语从句的意思是否定时,常把否定转移至主句表示。
eg: I don’t think it is right for him to treat you like that.
2)主句的谓语动词是think, believe, imagine, suppose, consider, expect ,guess等,并且主句的主语是第一人称而且为一般现在时,从句的否定词一般要转移到主句上来,其反义疑问句一般与宾语从句一致.
eg: I don’t believe that man is killed by Jim, is he? 我认为那个人不是Jim所杀的,是不是?
eg: We suppose you have finished the project, haven't you?
3)如果宾语从句中有某个含有否定意义的形容词或副词(不包含带有否定前缀的词,如:unhappy,unfair,dislike等),其反义疑问句要用肯定形式. eg: We find that he never listens to the teacher carefully, does he? 我们发现他从不仔细听老师讲课,是不是?
4)当主句的主语是第二、三人称时,其反义疑问句一般与主句保持一致。 eg: Your sister supposes she needs no help, ?
eg: You thought they could have completed the project, ?
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