主語從句用法小結(jié)資料

1、主語從句用法小結(jié)主語從句用法小結(jié)勉縣第二中學(xué)高二(7)班郭恬指導(dǎo)老師：李艷請(qǐng)觀察下列句子，注意主語從句的特點(diǎn)。1. That the earth travels round the sun is a well-known fact.2. Whether the artist can do it or not is un certa in.3. Who will act the lead in the play has not bee n decided yet.4. Where the young man has gone is not known.5. When and where the

2、test will be given is not yet decided.【歸納總結(jié)】主語從句必須有引導(dǎo)詞；主語從句用陳述句語氣。1. 引導(dǎo)主語從句的詞有：連詞：that, whether；連接代詞:who, whose, whom, whoever, what, which等； 連接畐【J詞 where, when, whenever, wherever, how, why等。主語從句引導(dǎo)詞的選擇：1) .連接詞:that, whether(1) That he will win is certa in.(2) It has bee n reported that sales of bee

3、f in China will in crease.(3) Whether we shall raise ducks or geese rema ins to be decided.(4) Whether he ' ll join us in the discussion is of great importanee.2) 連接代詞:who, whom, whose, what, which, whoever, whatever, whicheve等。(1) It is clear who is afraid of hav ing a cha nge in land own ershi

4、p.(2) Whose bag it is cannot be told.(3) What In dia n eeds is a law to make land own ership fairer.(4) It is not yet decided which cash crop will be produced n ext year.(5) Whatever he said was right.(6) Whoever go there must get ready by 6 o' clock.3) 連接畐【J詞:when, where, why, how, how many, ho

5、w much ,how long, how soon, how ofte n 等。(1) When we II start tomorrow will be told soon.(2) Where we can buy oxe n is someth ing we n eed to find out.(3) How/ Whe n he came here is not known.(4) How we can protect the grain n eeds to be discussed.(5) How many people died from starvati on that year

6、will n ever be known.(6) How ofte n he' ll go to see his gran dmother depe nds on the time he can spare.歸納總結(jié)：主語從句引導(dǎo)詞的選擇主要是根據(jù)從句的結(jié)構(gòu)和意義來選擇。1. 如果從句的意義和結(jié)構(gòu)完整，則用that。2. 如果從句的意義和結(jié)構(gòu)不完整，則根據(jù)從句的意義和結(jié)構(gòu)選擇相應(yīng)的引導(dǎo)?詞。比較 that / what1. What he wants is a book.2. That he wan ts to go there is obvious.3. What happe ned

7、 is not clear.4. This is the best TV that is made in China定語從句5. The first museum that he visited in Chi na was the History Museum.定語從句that和what的選用：that和what都可引導(dǎo)主語從句。但是， what除起連接作 用外，還在主語從句中充當(dāng)成分，可做從句的主語、賓語、或表語。而that在主語從句中不充當(dāng)任何成分，只起連接作用。翻譯和分析下列句子：1. It is well reported that a storm is coming.2. It is

8、 true that the earth moves around the sun.3. _It is a pity that I missed the trai n.4. It doesn' t matte巾ether he will come or not.5. It seems_that it is going to rain.6. It happenedjbatthey didn ' t know my address.歸納：為了使句子保持平衡，常用it來代替主語從句，而把主語從句放到后面，尤其是連詞that引導(dǎo)的主語從句常用于此種句式中。常用句型如下：It+ be +

9、名詞+ that 從句It+ be + 形容詞 + that 從句It+ be + 動(dòng)詞的過去分詞 + that 從句It+ be + 不及物動(dòng)詞 + that 從句1. It's likely/possible/importa nt/n ecessary/clear that -很可能/重要的是/必要的是/很清楚2. It's known/reported/ thought/said that 據(jù)說/據(jù)報(bào)道3. It seems/appears/happens that 顯然、明顯、碰巧.4. It's been announced/declared that 已經(jīng)通

10、知 /宣布5. It's no wonder that 并不奇怪/無疑6. It's a pity/a fact /a com mon kno wledge 眾所周知） / a com mon say ing （俗話 說）that主語從句常見錯(cuò)誤：下列各句均有一處錯(cuò)誤，請(qǐng)改正并分析原因。1. Light travels faster than sound is common knowledge.改：在is后加thato that雖無詞義但引導(dǎo)主語從句位于句首時(shí)不能省略。2. If she ' s coming or not doesn ' t matter mu

11、ch.改：將If變?yōu)閃hethero if, whether都可表示 是否”但if不能引導(dǎo)位于主句之前的主語從句，它可以引導(dǎo)位于主句之后帶有形式主語it的主語從句。3. That the professor said is of great importance.改：將That改為Whato that引導(dǎo)主語從句時(shí)無詞義，只起一個(gè)連接的作用。What the professor said表示 教授所說的”，said后面還需要一個(gè)賓語，就只能用what。 4. Where will the trees be planted has not been decided.改：將will置于trees之后。主語從句要用陳述句語序。5. No matter who breaks the rule will be pun