資源描述:
《if條件句講解及練習(xí)》由會(huì)員上傳分享,免費(fèi)在線(xiàn)閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫(kù)。
1、if條件句講解及練習(xí) 撰稿:胡秋明 審稿:趙克險(xiǎn) 責(zé)編:白雪雁本單元語(yǔ)法講解一、will和begoingto表示推測(cè)、揣想 will更強(qiáng)調(diào)依據(jù)直覺(jué)、知識(shí)和經(jīng)驗(yàn)做出的推測(cè)。例如: Thiswillbethehouseyouarelookingfor. Youwillbeintimeifyouhurry. begoingto更強(qiáng)調(diào)依據(jù)當(dāng)時(shí)可以觀(guān)察到的證據(jù)、事實(shí)做出的推測(cè)。例如: Lookatthoseclouds.Ithinkitisgoingtorain. ---Watchout
2、!Heisgoingtohitthatballagain. ---It'sgoingtobeaveryinterestingmovie.二、含if的真實(shí)條件句和虛擬條件句 ?。?)在英語(yǔ)中,語(yǔ)氣是動(dòng)詞的一種形式,用來(lái)表示說(shuō)話(huà)人的意圖或態(tài)度?! ∮⒄Z(yǔ)的語(yǔ)氣有三種:陳述語(yǔ)氣(表示所說(shuō)的話(huà)是事實(shí)),祈使語(yǔ)氣(表示所說(shuō)的話(huà)是請(qǐng)求或命令)和虛擬語(yǔ)氣(表示所說(shuō)的話(huà)只是一種主觀(guān)的愿望或假設(shè)或建議等)。 如果所表示的條件是真實(shí)的,或者完全有可能實(shí)現(xiàn)的,叫真實(shí)條件句,主句和從句的謂語(yǔ)都用陳述語(yǔ)氣。如: Ifshedoesn’t
3、hurryup,shewillmissthefirstbus. 如果所表示的條件不可能實(shí)現(xiàn)或者實(shí)現(xiàn)的可能性很小時(shí),叫非真實(shí)條件句,主句和從句的謂語(yǔ)要用虛擬語(yǔ)氣?!木渲骶渑c現(xiàn)在事實(shí)相反過(guò)去式(be用were)would/should/could/might+do與過(guò)去事實(shí)相反過(guò)去完成式would/should/could/might+havedone與將來(lái)事實(shí)相反should(wereto)+動(dòng)詞原形would/should/could/might+do IfIwereyou,Iwouldnotletoutth
4、esecret. 如果我是你的話(huà),我不會(huì)泄露這個(gè)秘密的?! fIknewhisnewaddress,Iwouldtellyou. 如果我知道他的新地址,我會(huì)告訴你的?! fhestudiedharder,hewouldpasstheexam. 如果他學(xué)習(xí)再努力點(diǎn)的話(huà),他會(huì)通過(guò)考試的?! fwehadmadefullerpreparation,weshouldhavewonthegame. 如果我們做了更充分的準(zhǔn)備的話(huà),我們肯定就贏(yíng)了這場(chǎng)比賽?! fyouhadtakenmyadvice,youwou
5、ldn’thavebeenlateforthemeeting. 如果你聽(tīng)了我的建議,你開(kāi)會(huì)就不會(huì)遲到了?! fshewereto/shouldcome,Iwouldtellherthesecret. 萬(wàn)一她來(lái)的話(huà),我會(huì)告訴她這個(gè)秘密?! 。?)省略if的虛擬條件句 在含有were,had,或者should等詞的虛擬條件句中,可以省略if,將were,had或者should這些助動(dòng)詞放在句首。如: WereIyou,Iwouldnotletoutthesecret. Hadwemadefullerprep
6、aration,weshouldhavewonthegame. Hadyoutakenmyadvice,youwouldn’thavebeenlateforthemeeting. Shouldshecome,Iwouldtellherthesecret.高一語(yǔ)法練習(xí)(四)預(yù)測(cè)、if條件句及虛擬語(yǔ)氣 一、單項(xiàng)選擇 1.IfI_____wherehelived,I_____anotetohim. A.know,wouldhavesent B.hadknown,wouldhavesent C.know
7、,wouldsend D.knew,wouldhavesent 2.Maryisilltoday.Ifshe_____,she_____absentfromschool. A.werenotill;wouldn’tbe B.hadbeenill;wouldn’thavebeen C.hadbeenill;shouldhavebeen D.hadn’tbeenill;couldbe 3.Heactedasifhe_____everythingintheworld. A.knew
8、 B.knows C.hasknown D.won'tknow 4.Ifyouhadenoughmoney,what_____? A.willyoubuy B.wouldyoubuy C.wouldyouhavebought D.willyouhavebought 5.IfMr.Young_____withjustice