初中英语语法提炼:宾语从句的引导词

2024-04-26 16:28:00来源:网络

  初中英语语法,是初中英语中一个重要的板块。熟练的掌握这些语法知识,对于我们英语能力的整体提高,会有更好的帮助。那么具体的初中英语语法知识都包含了哪些呢?下面为大家整理了“初中英语语法提炼:宾语从句的引导词”,供大家进行参考学习。

  用一个句子作宾语,这个句子就是宾语从句。宾语从句的三大考点是时态、语序和引导词。

  15-1 宾语从句的引导词

  在含有宾语从句的复合句中,主句与从句之间要有一个连接词来引导从句,这个连接词称为宾语从句的引导词。宾语从句的引导词分三类,一是连接代词that,二是连词if和whether,三是特殊疑问词。

  that引导的宾语从句

  宾语从句是陈述句时,用连词that引导。that在从句中只起引导作用,没有词义,不做句子成分,在口语中常常省略。如

  We believe that he is honest.我们相信他是诚实的。

  I suggest that we should go tomorrow.我建议我们应当明天走。

  We learnt from his letter that he was in Spain.从他的信里我们了解到他在西班牙。

  I didn't know (that)he was Li Lei.我不知道他就是李雷。

  She said (that)she would come to the meeting.她说她要来开会。

  I promise you (that)I will be there.我答应你我会去。

  注意

  不能省略that的8种宾语从句

  ①宾语从句前有插入语时that不能省略。如

  We hope,on the contrary,that he will stay at home with

  us.恰恰相反,我们希望他和我们呆在家里。

  ②宾语从句前有间接宾语时that不能省略。如

  He told me that he was leaving for Japan.他告诉我他要去日本。

  ③that在与之并列的另一个宾语从句之后不能省略。如

  He said (that)the book was very interesting and that all the children like

  to read it.他说那本书很有趣,所有小孩都喜欢读。(后一个that不能省略)

  ④在“it (形式宾语)+宾语补足语”之后的宾语从句that不能省略。如

  I think it necessary that he should stay here.我认为他有必要留在这里。

  ⑤that从句单独回答问题时不省略that。如

  — What did he hear?他听说什么事了?

  — That Kate had passed the exam.(他听说)凯特考试及格了。

  ⑥在except,but等介词后的宾语从句that不能省略。如

  He has no special fault except that he smokes too

  much.他除了抽烟太多之外,没有什么特别的毛病。

  ⑦为了强调宾语把从句位于句首时,that不能省略。如

  That our team will win,I believe.我相信我们队会赢。

  ⑧在较为正式的场合或不常用的动词(如reply,object)后通常不省略that。如

  He replied that he disagreed.他回答说他不同意。

  if/whether引导的宾语从句

  当宾语从句是一般疑问句时,从句要用if或whether引导,if和whether意为“是否”,在句中不做句子成分,也不能省略。

  I asked him if he was busy.我问他忙不忙。

  I asked him whether he was coming.我问他是否要来。

  I don't know if (whether)he'll arrive in time.我不知道他是否能及时到。

  I didn't know whether they liked the place.我不知道他们是否喜欢这个地方。

  I wonder if it's large enough.我不知道它是否够大。

  She didn't say if he was still alive.她没说他是否还活着。

  I don't know whether he'll arrive in time.我不知道他是否能及时到。

  I asked her whether she agreed.我问她是否同意。

  [辨析] if和whether的用法区别

  if引导宾语从句,意思是“是否”,可与whether互换使用,if在口语中用得较多,whether多用于书面语及正式的场合。

  (1)在引导否定概念的宾语从句时,只能用if,而不用whether。如

  He asked me if I hadn't finished my work.他问我是否还没有完成那项工作。

  (2)在下列情况下多用whether而不用if

  ①在动词不定式之前只能用whether,而不用if。如

  I can't decide whether to stay.我不能决定是否留下。

  He doesn't know whether to visit that old man again.他不知道是否再去看望那位老人。

  ②在介词后的宾语从句,只能用whether引导而不用if。如

  His father is worried about whether he will lose his

  work.他的父亲担心是否会失去工作。

  ③当宾语从句置于句首表示强调时用whether引导不宜用if。如

  Whether he lives there,I want to know.我想知道他是否住在那里。

  ④与or not 连用时用whether连接而不用if。如

  I don't know whether or not they will come for our

  help.我不知道他们是否要来求我们支援。

  注意 若whether和or not不连在一起,在口语中可以用if取代whether,当然也可以用whether。如

  I am not certain if/whether the train will arrive on time or

  not.我没有把握火车是否准时到达。

  I don't care if/whether your car breaks down or not.我不在乎您的车是否会出故障。

  ⑤在及物动词discuss后的宾语从句中,只能用whether,不能用if。如

  We discussed whether we should make a change in our

  plan.我们讨论了是否要对我们的计划作一些修改。

  ⑥在及物动词know后的宾语从句,为避免产生歧义常用whether而不用if引导。如

  Let me know whether he has left for Shanghai.告诉我他是否已经去上海了。

  特殊疑问词引导的宾语从句

  当宾语从句是一个特殊疑问句时,特殊疑问词就是引导词。如

  I don't know who/whom you mean.我不知道你指谁。

  Please tell me which you like.请告诉我你喜欢哪一个。

  You don't know what you are talking about.你在说什么,你自己也不知道。

  He asked why he had to go alone.他问他为什么必须一个人去。

  I asked how he was getting on.我问他情况怎样。

  He knows where they live.他知道他们住哪里。

  I'd like to know when they will let him out.我很想知道他们什么时候会放他出来。

  注意

  what引导的宾语从句有两种含义。一是表示疑问,意为“什么”,二是表示“所……的”。如

  I don't know what his name is.我不知道他叫什么名字。

  Do you know what he is doing there?你知道他在那里干什么吗?

  I take back what I said.我收回我所说的。

  以上就是为大家整理的“初中英语语法提炼:宾语从句的引导词”,希望可以帮助大家更好地学习初中英语语法,更多内容敬请关注!


本文关键字: 初中英语语法

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