七年級(jí)英語(yǔ)常用句型轉(zhuǎn)換練習(xí)句型轉(zhuǎn)換是英語(yǔ)學(xué)習(xí)中一項(xiàng)核心技能，它不僅考察我們對(duì)語(yǔ)法規(guī)則的理解，更能提升我們靈活運(yùn)用語(yǔ)言的能力。七年級(jí)階段涉及的句型轉(zhuǎn)換類型多樣，掌握這些轉(zhuǎn)換技巧，能為后續(xù)的英語(yǔ)學(xué)習(xí)打下堅(jiān)實(shí)基礎(chǔ)。以下將系統(tǒng)梳理常用的句型轉(zhuǎn)換類型及方法，并輔以實(shí)例說(shuō)明，希望能幫助同學(xué)們更好地掌握這一知識(shí)點(diǎn)。一、肯定句與否定句的轉(zhuǎn)換將肯定句轉(zhuǎn)換為否定句，關(guān)鍵在于找到句中的“關(guān)鍵動(dòng)詞”，并根據(jù)其類型添加相應(yīng)的否定詞。1.句中含有be動(dòng)詞（am,is,are,was,were）：*轉(zhuǎn)換方法：直接在be動(dòng)詞后加“not”。*例句：*Heisastudent.→Heisnotastudent./Heisn'tastudent.*Theyareplayingfootball.→Theyarenotplayingfootball./Theyaren'tplayingfootball.*Iwasathomeyesterday.→Iwasnotathomeyesterday./Iwasn'tathomeyesterday.2.句中含有情態(tài)動(dòng)詞（can,may,must,should,will,would等）：*轉(zhuǎn)換方法：直接在情態(tài)動(dòng)詞后加“not”。*例句：*Shecanswim.→Shecannotswim./Shecan'tswim.*Youmustgonow.→Youmustnotgonow./Youmustn'tgonow.3.句中含有實(shí)義動(dòng)詞（表示具體動(dòng)作或狀態(tài)的動(dòng)詞）：*轉(zhuǎn)換方法：需要借助助動(dòng)詞“do/does/did”，并在其后加“not”。注意，當(dāng)主語(yǔ)是第三人稱單數(shù)且時(shí)態(tài)為一般現(xiàn)在時(shí)，用“doesnot”，原實(shí)義動(dòng)詞要還原為原形；當(dāng)時(shí)態(tài)為一般過(guò)去時(shí)，用“didnot”，原實(shí)義動(dòng)詞也要還原為原形。*例句：*Ilikeapples.→Idonotlikeapples./Idon'tlikeapples.*Heplaysbasketballeveryday.→Hedoesnotplaybasketballeveryday./Hedoesn'tplaybasketballeveryday.(plays→play)*TheywenttotheparklastSunday.→TheydidnotgototheparklastSunday./Theydidn'tgototheparklastSunday.(went→go)二、陳述句與一般疑問(wèn)句的轉(zhuǎn)換將陳述句轉(zhuǎn)換為一般疑問(wèn)句，通常需要將句中的“關(guān)鍵動(dòng)詞”提前，句末用問(wèn)號(hào)。1.句中含有be動(dòng)詞（am,is,are,was,were）：*轉(zhuǎn)換方法：將be動(dòng)詞直接提到句首，首字母大寫，句末用問(wèn)號(hào)。第一人稱I/we在問(wèn)句中通常改為第二人稱you，相應(yīng)的be動(dòng)詞也要隨之變化。*例句：*Thisisabook.→Isthisabook?*Theywerehappy.→Weretheyhappy?*Iamateacher.→Areyouateacher?(Iam→Areyou)2.句中含有情態(tài)動(dòng)詞（can,may,must,should,will,would等）：*轉(zhuǎn)換方法：將情態(tài)動(dòng)詞直接提到句首，首字母大寫，句末用問(wèn)號(hào)。*例句：*ShecanspeakEnglish.→CanshespeakEnglish?*Weshouldhelpothers.→Shouldwehelpothers?3.句中含有實(shí)義動(dòng)詞（表示具體動(dòng)作或狀態(tài)的動(dòng)詞）：*轉(zhuǎn)換方法：需要借助助動(dòng)詞“do/does/did”置于句首，首字母大寫。主語(yǔ)是第三人稱單數(shù)且時(shí)態(tài)為一般現(xiàn)在時(shí)，用“Does”，原實(shí)義動(dòng)詞還原為原形；時(shí)態(tài)為一般過(guò)去時(shí)，用“Did”，原實(shí)義動(dòng)詞也還原為原形。句末用問(wèn)號(hào)。*例句：*Youstudyhard.→Doyoustudyhard?*TomwatchesTVintheevening.→DoesTomwatchTVintheevening?(watches→watch)*Theyfinishedtheirhomework.→Didtheyfinishtheirhomework?(finished→finish)注意：在一般疑問(wèn)句中，如果句中含有some，通常要改為any（但在表示請(qǐng)求、建議的問(wèn)句中，希望得到對(duì)方肯定回答時(shí)，仍用some）。*Therearesomebooksonthedesk.→Arethereanybooksonthedesk?*Wouldyoulikesomecoffee?(請(qǐng)求，用some)三、對(duì)劃線部分提問(wèn)（特殊疑問(wèn)句的構(gòu)成）對(duì)劃線部分提問(wèn)，實(shí)則是將陳述句轉(zhuǎn)換為特殊疑問(wèn)句。特殊疑問(wèn)句的構(gòu)成是：特殊疑問(wèn)詞+一般疑問(wèn)句語(yǔ)序？1.選擇合適的特殊疑問(wèn)詞：*問(wèn)“事物”：what*問(wèn)“人”：who(主格)/whom(賓格，七年級(jí)階段常用who代替)*問(wèn)“誰(shuí)的”：whose*問(wèn)“地點(diǎn)”：where*問(wèn)“時(shí)間”：when/whattime(whattime更具體)*問(wèn)“原因”：why*問(wèn)“方式/程度”：how*問(wèn)“數(shù)量”：howmany(后跟可數(shù)名詞復(fù)數(shù))/howmuch(后跟不可數(shù)名詞)*問(wèn)“年齡”：howold2.將原句剩余部分變?yōu)橐话阋蓡?wèn)句語(yǔ)序：*例句：*Tomisastudent.(劃線部分是“事物”)→WhatisTom?/WhatdoesTomdo?(更常用)*Maryisplaying.(劃線部分是“人”)→Whoisplaying?*Thebookisonthedesk.(劃線部分是“地點(diǎn)”)→Whereisthebook?*Hegetsupatsixo'clock.(劃線部分是“時(shí)間”)→When/Whattimedoeshegetup?*Theygotoschoolbybike.(劃線部分是“方式”)→Howdotheygotoschool?*Therearefiveapples.(劃線部分是“可數(shù)名詞數(shù)量”)→Howmanyapplesarethere?*Thedressisfiftyyuan.(劃線部分是“價(jià)格”，價(jià)格是不可數(shù)概念)→Howmuchisthedress?*Heistwelveyearsold.(劃線部分是“年齡”)→Howoldishe?*Sheislatebecauseshemissesthebus.(劃線部分是“原因”)→Whyisshelate?四、陳述句與感嘆句的轉(zhuǎn)換感嘆句用以表達(dá)強(qiáng)烈的情感，如喜悅、驚訝、憤怒等。七年級(jí)階段主要掌握由what和how引導(dǎo)的感嘆句。1.由what引導(dǎo)的感嘆句：*結(jié)構(gòu)1：What+a/an+(形容詞)+可數(shù)名詞單數(shù)+(主語(yǔ)+謂語(yǔ))!*例句：Itisabeautifulflower.→Whatabeautifulflower(itis)!*結(jié)構(gòu)2：What+(形容詞)+可數(shù)名詞復(fù)數(shù)/不可數(shù)名詞+(主語(yǔ)+謂語(yǔ))!*例句：Theyarelovelygirls.→Whatlovelygirls(theyare)!*Theweatherisfine.→Whatfineweather(itis)!2.由how引導(dǎo)的感嘆句：*結(jié)構(gòu)1：How+形容詞/副詞+(主語(yǔ)+謂語(yǔ))!*例句：Thegirlisbeautiful.→Howbeautiful(thegirlis)!*Herunsfast.→Howfast(heruns)!*結(jié)構(gòu)2：How+主語(yǔ)+謂語(yǔ)!(強(qiáng)調(diào)整個(gè)句子的內(nèi)容)*例句：Timeflies.→Howtimeflies!(時(shí)光飛逝！)轉(zhuǎn)換技巧：先判斷感嘆的中心詞是名詞還是形容詞/副詞。若是名詞，用what；若是形容詞或副詞，用how。五、Therebe句型的轉(zhuǎn)換Therebe句型表示“某地有某物/某人”，其句型轉(zhuǎn)換遵循be動(dòng)詞的變化規(guī)則。1.否定句：在be動(dòng)詞后加not。*Thereisacatintheroom.→Thereisnotacatintheroom./Thereisn'tacatintheroom.*Therearesomebooksontheshelf.→Therearenotanybooksontheshelf./Therearen'tanybooksontheshelf.(some變any)2.一般疑問(wèn)句：將be動(dòng)詞提到there之前。*Thereisaparknearhere.→Isthereaparknearhere?*Therearesomechildrenplaying.→Arethereanychildrenplaying?(some變any)六、練習(xí)建議句型轉(zhuǎn)換能力的提升離不開大量的實(shí)踐。同學(xué)們?cè)诰毩?xí)時(shí)，應(yīng)注意以下幾點(diǎn)：1.仔細(xì)觀察原句：確定原句的時(shí)態(tài)、謂語(yǔ)動(dòng)詞類型（b