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1、 Noun Clauses (名词性从句) 导学案 Part1.主语从句（Noun Clauses as the Subject）一导学 【什么是名词性从句？】原来名词性从句是从另一个角度所命名的从句，即在句中起名词作用的从句就叫名词性从句名词性从句包括 ， ， ， 。名词性从句的引导词： 单词 词义 在词中所充当的成分 连词 that if / whether 连接代词what (ever) which (ever) who (ever)whom (ever) whose (ever) 连接 副词 when where why how（一）主语从句定义-用作 的从句就叫主语从句，它是名词性从
2、句之一。Step1：感悟下列各句的主语并且划出下列句中的主语：(标出词性)1. You are a student 2. A tree has fallen across the road.3. Smoking is bad for you. 4. To find your way can be a problem.5. It is impossible to finish this task in half an hour.6. 30 years has seen the changes in our hometown.Step2.认识主语从句，主语从句在从句中作主语。1).What is
3、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.4).Which kind of food is the best is still not certain.5).When they will have a new restaurant opened has not been decided yet.6) How gold was found t
4、here is not clear.7). Why there is gravity is hard to understand.8）It is our duty that we students clean the classroom every day.思考与探究： 作主语的可以是 从句用什么语序？ 8)句子的主语怎么不在句首？ 注意: 1. That-从句作主语通常用it作先行词，而将that-从句置于句末，例如：It is true that the earth is round.Its a pity that you should have to leave.你非走不可真是件憾事。2
5、.表示“是否”意义时，用whether 而不用 if引导主语从句， Whether she will come or not is still a question .（但如果有形式主语 it引导时，既可用 whether，也可用 if）。3.有时可用形式主语it 代替主语从句： e.g. It is still a question whether she will come or not . =It has not been decided yet when they will start .用it作形式主语的that-从句有以下四种不同的搭配关系：a.It + be +形容词+ that
6、-从句It is necessary that 有必要 It is important that 重要的是It is obvious that 很明显b. It + be + -ed 分词+ that-从句It is believed that人们相信 It is known to all that众所周知It has been decided that 已决定c. It + be +名词+ that-从句It is common knowledge that .是常识 It is a surprise that令人惊奇的是It is a fact that事实是d. It +不及物动词+ t
7、hat-分句It seems/appears that似乎 It happens that碰巧It occurred to me that 我突然想起Step 3：寻规找矩：请划出下列各句的主语(部分)。1. That she was chosen made us very happy.2. Who will go to the concert is not known.3. Whether she will come or not is still a question.4. Which book they will choose is still unknown.5. When we sh
8、all hold our sports meet is not decided. 6. Why dinosaurs died out remains a puzzle.7. How they will solve the serious problem today has not been decided.8 . What surprised me most was that the little girl could play the violin so well.9. Whoever leaves the room last ought to turn off the lights.10.
9、 Its strange that he knows nothing about it.11. It is a pity that she has made such a mistake.12. It is said that President Hu Jingtao will visit our school next week.小结归纳主语从句的引导词有：_what与that在引导名词性从句时的区别: what引导名词性从句时在从句中充当句子成分,如主语,宾语,表语. 而that则不然,它在句子中只起连接作用,没有意义. (1) _ you said yesterday is right.
10、 (2) _ the earth goes around the sun is well-known to everybody. Step3: 用适当的词填空，使句子意思完整。who, whom, what, whose, which, whichever, whatever, whoever, when, where, how, why, , that, if, whether, 1. _ he didnt attend the meeting yesterday wasnt quite clear.2. The Foreign Minister said, “It is our hope
11、_ the two sides will work towards peace.” 3. _ team will win the match is still unknown.4. _ comes to the party will receive a present.5. _ Mary has left is still a question. 6. Its reported _ three people were killed in the accident and five were hurt badly.7. _ he solved the problem successfully i
12、nterested all of us.8. We usually think _ we cant get seems better than what we have. 9. It is a fact _ English is being accepted as an international language.10. _ is to be sent there to solve the problem hasnt been decided.Step4: Translation 用主语从句翻译下列句子所缺部分1. 这位老人的儿子想知道的是金子藏在哪里了。 is where the gold is hidden.2. 他是否能顺利的完成这项任务还是不确定的。 is uncertain.3. 每个人都有一本字典是很有必要的。 everybody has a dictionary.4. 谁杀死了这位科学家仍然是一个迷。 is still( remains) a puzzle.5. 他们是怎么去美国的，这正是我所想知道的事情。 is just what I wanted to know.6. 车祸为何会发生是我们所
