主語從句用法小結(jié)

1、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.Thattheearthtravelsroundthesunisawellknownfact.2.Whethertheartistcandoitnotisuncertain.3.Whowillacttheleadintheplayhasnotbeendecidedyet.4.Wheretheyoungmanhasgoneisnotknown.

2、5.Whenwherethetestwillbegivenisnotyetdecided.【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?！練w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:thatwhether；連接代詞:whowhosewhomwhoeverwhatwhich等；連接副詞wherewhenwheneverwhereverhowwhy等。主語從句引導(dǎo)詞的選擇：1).連接詞:th

3、atwhether(1)Thathewillwiniscertain.(2)IthasbeenreptedthatsalesofbeefinChinawillincrease.(3)Whetherweshallraiseducksgeeseremainstobedecided.(4)Whetherhe’lljoinusinthediscussionisofgreatimptance.2)連接代詞:whowhomwhosewhatwhic

4、hwhoeverwhateverwhichever等。(1)Itisclearwhoisafraidofhavingachangeinlownership.(2)Whosebagitiscannotbetold.(3)WhatIndianeedsisalawtomakelownershipfairer.(4)Itisnotyetdecidedwhichcashcropwillbeproducednextyear.(5)Whateverh

5、esaidwasright.(6)Whoevergotheremustgetreadyby6o’clock.3)連接副詞:whenwherewhyhowhowmanyhowmuchhowlonghowsoon面，尤其是連詞面，尤其是連詞that引導(dǎo)的主語從句常用于此種句式中。引導(dǎo)的主語從句常用于此種句式中。常用句型如下：Itbe名詞that從句Itbe形容詞that從句Itbe動(dòng)詞的過去分詞that從句Itbe不及物動(dòng)詞that從句1.

6、It’slikelypossibleimptantnecessaryclearthat…很可能重要的是…必要的是……很清楚…2.It’sknownreptedthoughtsaidthat…據(jù)說據(jù)報(bào)道…3.Itseemsappearshappensthat…顯然、明顯、碰巧.…4.It’sbeenannounceddeclaredthat…已經(jīng)通知宣布…5.It’snowonderthat…并不奇怪無疑…6.It’sapityafact

7、acommonknowledge(眾所周知）acommonsaying（俗話說）that…主語從句常見錯(cuò)誤：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.Lighttravelsfasterthansoundiscommonknowledge.改：在is后加that。that雖無詞義但引導(dǎo)主語從句位于句首時(shí)不能省略。2.Ifshe’scomingnotdoesn’tmattermuch.改：將If變?yōu)閃hether。if

8、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.Thattheprofesssaidisofgreatimptance.改：將That改為What。that引導(dǎo)主語從句時(shí)無詞義，只起一個(gè)連接的作用。Whattheprofesssaid表示“教授所說的”，said后面還需要一個(gè)賓語，就只能用what。4.Wherewillthetreesbeplantedhasno