名词性从句专题讲解

Whether they will come is unknown． It is unknown whether/if they„ll come. I asked the teacher whether/if it was true． It all depends on whether they'll help us. The question was whether Tom has gone to Shanghai. The problem whether it is right or wrong has not yet been discussed.
名词性从句专题
㈠.如何判断4个名词性从句？
①.主语从句
What you said sounds reasonable. When she will be back is still a question. It was a pity that he didn‟t pass the exam. 总结：迅速找出主句的谓语;为避免句子头重脚轻, 常 用 it 充当形式主语,而把主语从句后置。 ②.宾语从句 I don‟t know who did all the cleaning. The price depends on how many you will buy. I know nothing about whether he has arrived safe. I am afraid that I have made a mistake. He made it clear that he would resign soon. 总结 :常作动词/动词短语/介词/be+形容词的宾语;为避免 句子头重脚轻, 常用 it 充当形式宾语,而把宾语从句后置。
---• I believe _____ you've done your best and _____ D things will happen. ----Thank you. A. that; / B. /; / C. what; that D. /; that 考点⑥：
双重宾语从句, 第二个that不能省略; 主语从句、表语从句、同位语从句中that不能省略。
____ That he succeeded in the competition made us happy. It is certain ____ that he will come. We all think it wrong ____ that he told a lie. The fact is ____ that he told a lie to me. The thought ____ that we might succeed excited us. that There is no doubt _____he will come. There is doubt _______ whether he will come.
考点②： whichever与whatever的区别 whichever Eat _____ cake you like and leave the others for whoever comes in late. You can choose whichever ______ you want from these books. Nobody‟s here. You can take whichever ______ seat you want. whichever意为“无论哪个;无论哪些”, 一般给出的 语境是有一定范围的; whatever意为“无论什么”。 I would do whatever I can to save these flowers.
③.表语从句 This is where our problem lies. It seemed that the night would never end. It looks as if it is going to rain. 总结：放在系动词后的从句为表语从句。 常见的系动词有: be, become, get, grow, turn, go, look, feel, smell, taste, sound, remain, stay, seem, appear, prove等
No one can be sure ______ A in a million years. A. what man will look like B. what will man look like C. man will look like what D. what look will man like
④.同位语从句 The news that we won the game is exciting. I have no idea when he will come back home. 总结：同位语从句常置于一个名词后面，解释说明该名词 的具体内容。 常见名词有: idea, fact, news, hope, opinion, proposal, chance, promise, plan, suggestion, doubt, message, thought, belief, information, truth, possibility, word(消息)等。
Whatever she did is wrong. You can talk about whatever topic you like.
①.whatever为what的强调形式,语气更加强烈。 whatever ②.whatever充当定语时, 意为“无论什么的”。 ③.whatever引导名从,一般也可以转换成一个定语从句。
①.that在名从中无任何意义, 也不充当成分, that 只起连接作用。 ②.that引导名从表示一种肯定的意义, 不存在疑问。Biblioteka Baidu
其余引导词 ?
①.不要去考虑到底缺什么成分。 ②.只要根据语境去考虑该句子要表达什么意思即可, 然后补充相应引导词, 使句子要表达的意思完整。
1.Whether _____ I accept the gift or refuse it is none of your business. where 2.Go and get your coat. It's ____ you left it. 3. ---Do you remember _____ how he came? 练习 ---Yes, I do. He came by car. 4. She looked _____ as if she were ten years younger. 5. The question he asked was _____ the electrical where• equipment should be stored. 6. Please tell me _____ how you want your coffee, black or white? 7. Maria has to baby-sit. That‟s _____ why she can‟t come out with us. 8. The last time we had great fun was when _____ we were visiting the Water Park.
考点⑦： 名词性从句的语序为: 陈述句语序 --- Do you see why the machine doesn't work? --- Sorry, let's ask the engineer ____. A A. what is the matter B. what the matter is C. how is the matter D. how the matter is
I don‟t know ____ what side effect the medicine will bring about.
①.what在名从中充当主语,宾语,表语,定语, 常指物。 ②.what在名从中也可以指人。 what ③.what充当定语时, 意为“什么的”。 ④.what引导名从，一般可以转换成一个定语从句。
考点④： 以下情形只能用whether而不能用if: 主语从句位于句首时/介词后面的宾语从句/ 引导表语从句时/引导同位语从句时/固定结 构: “whether…or…”,“whether…or not” 。
考点⑤： ▲比较：疑问词 + ever和no matter + 疑问词的区别。
①. 疑问词 + ever可引导名词性从句, 如： Whoever breaks the rule must be punished. You can choose whatever you like in the shop. ②. 疑问词 + ever 还可引导让步状语从句, 如： Whoever breaks the rule, he must be punished, Whatever you do, you must do it well. ③. no matter + 疑问词只能引导让步状语从句, 如： No matter who breaks the rule, he must be punished. No matter what you do, you must do it well.
㈡.如何选择引导词？
What _____ makes this shop different is that it offers more personal services. _____ I really want is to have a good rest. What what he used to be. He is not ______ what is known as “the Father of Hybrid Rice.” He is ______
语境
㈢.名词性从句其他注意事项
考点①： Who broke the window is not a serious thing. ________ ________ breaks the law should be punished. Whoever who will be our English teacher next term. I don‟t know _____ The question is ______ whom we will send there. I will give this dictionary towhoever ______ wants to have it. whomever We gave a gift to ______ we invited. I don‟t know ______ whose book it is. who, whom + 名词性从句是指一整件事。 whoever, whomever +名词性从句是指人,相当于anyone who…,意为 “任何…的人”。 名词性从句缺定语,指人,一般用whose充当, 意为”谁 的”。
考点③： why he was late. He had a car accident. That‟s _____ He was late. That‟s because _____ he had a car accident. The reason _____ why he was late is _____ that he had a car accident why 引导的表语从句表示结果。 because引导的表语从句表示原因。 固定结构：the reason why…is that… (正确) …的原因是… the reason why…is because… (错误)