PeriodThree Grammar—Theuseof“it” (2)
课文原句感知 1
．
Thereisnodoubtthattheearthisbecomingwarmer(seeGraph1)
andthatitishumanactivitythathascausedthisglobalwarmingratherthanarandombutnaturalphenomenon.
2．ItwasascientistcalledCharlesKeelingwhomadeaccuratemeasurementsoftheamountofcarbondioxideintheatmospherefrom1957to1997.
3．Theyalsoagreethatitistheburningofmoreandmorefossilfuelsthathasresultedinthisincreaseincarbondioxide.
强调句型中的it： 1．肯定句
Itis (was)＋被强调部分＋that(who)＋其他部分： ItwasinBeijingthatIsawthefilmWolfWarriors. 我是在北京看了电影《战狼》。 2．否定句
Itis(was) not＋被强调部分＋that(who)＋其他部分 Itis(was) notuntil...＋that＋其他部分：
ItwasnotforseveralyearsthatIhadanopportunityofseeinghimagain. ＝Ididnothaveanopportunityofseeinghimagainforseveralyears. 我有好几年没有机会再见到他了。
Itwasnotuntiltwelveo’clocklastnightthathewenttobed. ＝Hedidn’tgotobeduntiltwelveo’clocklastnight. 昨晚他12点才去睡觉。
ItwasnotuntilIgotoffthebusthatIrealizedit. ＝Ididn’trealizeituntilIgotoffthebus.
直到下车我才意识到这一点。 3．疑问句
(1)强调句的一般疑问句只需把is/was提前，即：Is (Was) it＋被强调部分＋that(who)＋其他部分：
Wasityouwho/thatbrokethewindow? 是你把窗户打破了吗？
(2)强调句的特殊疑问句，只需在一般疑问句前加上特殊疑问词即可，即：特殊疑问词＋is(was) it＋that＋其他部分：
Whowasitthatbrokethewindow? 打破窗户的是谁？
Whenwasitthatyoucalledmeyesterday? 你昨天是什么时候打电话给我的？
特别提示 (1)不论强调句子的哪一部分，都可用that连接句子的其余部分。 (2)被强调部分指人时，可用who取代that。
(3)it之后的be动词的时态通常要与that之后的谓语保持一致。 疑难辨析
高考中单纯考查it强调句型的试题越来越少，更多的是把它放在一个复杂的语境中，其中含有很多干扰因素在内，让人难以判断。具体表现在以下几个方面： 1．与主谓一致结合在一起考查
强调主语时，that或who后的谓语动词必须与被强调的主语的人称与数保持一致。 Itishewhoiswrong.错的是他。
2．强调句型要注意和it代表时间、距离、温度、自然现象、具体事物或人物等时所构成的各种句型的区别
Itwasat8o’clockthathearrivedhome. 他是八点到家的。
Itwas8o’clockwhenhearrivedhome. 他到家时八点了。
3．强调句型不能强调谓语，如需强调谓语，用助动词do，does或did Hedidwritetoyoulastweek. 他上星期确实给你写信了。
4．强调句型与定语从句、主语从句、宾语从句、状语从句结合在一起 Itwasattheschoolthat/whichwasnamedaftertheherothathespenthischildhood. 他是在那所以英雄命名的学校度过了他的童年。
单句语法填空
1．ItwaswhenIgotbacktomyapartmentthatIfirstcameacrossmynewneighbors.(2017·天津) 2．Youarewaitingatawrongplace.Itisatthehotelthatthecoachpicksuptourists.(2016·天津)
3．ItwaswhenwewerereturninghomethatIrealizedwhatagoodfeelingitwastohavehelpedsomeoneintrouble.(2015·湖南) 4
．
Bachdiedin1750
，
butitwasnotuntiltheearly19thcenturythathismusicalgiftwasfullyrecognized.(2015·重庆)
5．It’snotdoingthethingswelike，butlikingthethingswehavetodothatmakeslifehappy.(2014·湖南) 6．Itwasthemiddleofthenightwhenmyfatherwokemeupandtoldmetowatchthefootballgame.(2014·江西)
7．WasitbecauseJackcamelateforschoolthatMrSmithgotangry？(2014·四川)
Ⅰ.单句语法填空
1．ItwasinFrancethathefellinlovewithoilpaintings. 2．Itwasonthefarmwherehisfatherworkedthathewasborn. 3．Howwasitthatshemanagedtopersuadeherhusbandtoresignfromthecompany? 4．ItwasLucyandMarythatwerechosentoattendtheceremony. 5．Whatwasitthatmadeyourteachersoangrytheotherday? Ⅱ.单句改错(每小题仅有1处错误) 6．Itwasontheplayground
where
hefoundhisjacket. that
7．Itwasbecauseofthebadweather8．It
so
thefootballmatchhadtobeputoff. that
is
bysellingvegetablesthatheusedtosupporthisfamily. was
when
9．Itwasintheyear1995sheleftfortheUSAforfurtherstudy.
thatwere10．Itherparentsthathelpedheroutwhenshewasintrouble.
wasⅢ.翻译句子
11．是苏珊和约翰昨天没来上学。
ItwasSusanandJohnwho/thatwereabsentfromschoolyesterday. 12．直到战争结束他才回到了他的祖国。
Itwasnotuntilthewarwasoverthathewentbacktohismotherland. 13．这位女士正在寻找的是一本中文词典。 ItwasaChinesedictionarythattheladywaslookingfor. 14．你到底是什么时候收到礼物的？ Whenwasitthatyoureceivedthegift? 15．这位教授是在1968年从山东大学毕业的吗？
Wasitin1968thattheprofessorgraduatedfromShandongUniversity? Ⅳ.语法填空
(2017·四川南充高级中学高二检测)
Polarbearsaresufferingina16.warmer(warm) worldthanbefore.Polarbearsliveinenvironmentstoocold17.formostanimals.Duringmuchoftheyear，theyliveandhuntonthefrozenArcticseaice.Nature18.hasprepared(prepare) themforthecoldconditions.Butnothinghaspreparedthebearsforthedangerthat19.threatens(threat) theonlyhometheyknow.Thepolarbears’world20.ismelting(melt) now.Studiesshowthatthepolaricehasreducedby9.8%every10yearssince1978.Nowabout20,000to25,000polarbearsliveintheArctic.Polarbearsdependontheseaicefortheir21.survival(survive)．“Theseaiceismorethanjusttheplatformthatthebearswalkover
，
”
saysAndrewDerocher
，
ascientistwho22.studies(study) NorthAmericanpolarbearpopulations.“Withoutit，theycan’texist.”Somemeltingandrefreezingofthepolariceisnatural.23.Butinawarmerworld，thesecyclesspeedup，andbearshavelesstimetohunt.Normally
，
