8AUnitFour牛津初中英語復(fù)習(xí)之1/13四會單詞：N.:bear/giantpanda/kangaroo/bambooshoot/hunter/fur/farmer/forest/nowhere/danger/action/writer/camel/fox/giraffe/polar/tortoise/wolf/zebra/bamboo/report/attack/poison/character/farmland/mice/smell/lossAdj.:wild/safe/thick/sharpAdv.:sadlyV.:protect/encourage/step/hunt/sell/train2/13三會單詞：alive/delicious/squirrel/following/spit/male/medicine/insect/chairperson/peaceful/continue/suitable了解單詞：dolphin/survive/rainforest/snail/upright3/13重點句型1.

Attheverybeginning,XiWangdrankhermother’smilkforupto14hoursaday.2.

Mothersoftenleavebabypandasfortwowholedaysontheirown.3.

Ifpeoplefindbabypandasalone,theywilloftentakethemaway.4.

Ifgiantpandasareindanger,whatcanwedo?5.

encouragefarmerstoleavethegiantpandasreserves/encouragesb.todosth.4/136.

IfIdon’tbuythem,someoneelsewillbuythem.7.Ifwecontinuetobuild

roads,theywon’thavesuitablehomes.8.

Babygiantpandasspendalotoftimedrinkingtheirmum’smilk–uptofourteenhoursaday!/spendsometimedoingsth.9.

Mothergiantpandashaveonlyoneortwobabiesatatime.10.

Theirnumberisgettingsmallerandsmallerbecausetheirlivingareasarebecomingfarmlands..11.

Iffarmerskeeptakingtheland,giantpandaswillhavenowheretolive.5/13語法：條件句引導(dǎo)條件狀語詞或詞組有：if(假如，假如),unless(除非，假如不)，solongas(只要)，aslongas(只要)，incase(假如，萬一)，ifonly(只要),onlyif(假如)等。如：(a)IfitisfinenextSunday，weshallhaveaspringouting．假如下星期日天氣好，我們就去春游。(b)Youwillnotpasstheexamunlessyoustudyhard．假如你不努力學(xué)習(xí)，就不會經(jīng)過考試：(c)Iwillgothereaslongasheinvitesme.只要他邀請，我就去那里。(d)Takeanumbrellawithyouincaseitrains.你帶把傘，以防下雨。6/13If引導(dǎo)條件句▲條件句表示未來可能發(fā)生情況If引導(dǎo)條件句能夠表示未來“可能”發(fā)生情況，即主句事態(tài)發(fā)生有賴于條件分句事態(tài)發(fā)生。此時說話人或是把條件視為事實。或者僅僅提出條件，不作任何主觀構(gòu)想，假如條件實現(xiàn)，主句內(nèi)容便成為事實，假如條件不實現(xiàn)、結(jié)果也就不會發(fā)生。普通條件分句動詞用普通現(xiàn)在時形式，主句動詞用will／shall-不定式普通未來時形式。如：(a)Ifitstopsraining，I'llgoforawalk.假如雨停了，我就去散步。(b)Ifitdoesn'tstopraining,I’llstayathome．假如雨不停，我就呆在家里。(c)Ifit'sready,he'llbringittomorrow．假如準(zhǔn)備好了，他明天就把它帶來。(d)Whatareyougoingtodoifitrains?假如下雨，你們要干什么?(e)Ifyoudon'thurryandgettherebeforefiveo'clock，he'llleavetheofficeandgohome．假如你不快點，在五點前到那兒話，他就會離創(chuàng)辦公室回家。(f)Ifhehasfinishedhisworkbysixo'clock，weshallbeabletotakehimwithus．假如他到六點完成工作話。我們就能夠帶他一起去。(當(dāng)條件狀語從句強調(diào)動作完成時，從句中用現(xiàn)在完成時比用普通現(xiàn)在時更確切。)7/13▲條件句表示重復(fù)性、可預(yù)見情況If引導(dǎo)條件句也能夠表示重復(fù)性、可預(yù)見情況或習(xí)慣動作，此時條件分句動詞用普通現(xiàn)在時，主句動詞也用普通理在時。如：(a)Tigersliveasafamilyiftheyhavebabies．假如老虎有了虎崽話，它們就群居。(b)Ifapolarbearishungry，itcatchesfishfromthewater．假如北極熊餓了，它就從水里抓魚。(C)Iflionsliveinthewild，theylookforfoodthemselves．假如獅子生活在野外，它們就自己尋找食物。(d)Ifwetrainelephants，theydoheavyworkforus．假如我們訓(xùn)練象話，它們能為我們干重活。(e)Ifitrains,Igotoworkbytaix．假如天下雨，我乘出租車上班。(f)IfImakeapromise，Ikeepit.假如我許諾，我就信守諾言。8/13▲條件句表示真理和事實

If引導(dǎo)條件句還能夠表示普遍真理和客觀事實，在這種條件句中，if意義靠近于whenever，可成“當(dāng)……時候”。此時條件分句動詞用普通現(xiàn)在時，主句動詞也用普通現(xiàn)在時。如：(a)Ifyouheatice，itmelts．冰受熱會融化。(b)Ifyoupouroilonwater，itfloats．將油倒在水上，油會浮在表面。(c)Ifthetemperaturedropsto0°C，waterfreezes．當(dāng)溫度降至O°C時水結(jié)冰。9/13

[注意]if還可引導(dǎo)賓語從句，試比較：(a)We'llgotovisittheGreatWallifitdoesn'traintomorrow．假如明天不下雨，我們就去長城。(b)Wedon'tknowifitwillraintomorrow．我們不知道明天是否會下雨。這里第一句中if引導(dǎo)是條件從句，第二句中if引導(dǎo)是賓語從句，意思為“是否”，從句中時態(tài)依據(jù)主句時態(tài)而定。另外，whether也可用于引導(dǎo)賓語從句，可與if替換；但whether可與or連用，而if不能。如：(a)Iwanttoknowwhether／ifshestilllivesthere．我想知道她是否還住在那里。(b)Heaskedwhether／ifyoureceivedtheletter．他問你是否已經(jīng)收到了那封信。(c)Doyouknowwhether／ifthey’llleaveforJapan．你知道他們是否要去日本。(d)Pleasetellmewhetheryoucancomeornot．請告訴我你是否能來：(此句不可用if替換)10/13練習(xí)：I.Completethesentenceswiththecorrectformofthewordsinbrackets.1Canyoufindanymistakesinthe___________(follow)sentences?2Giantpandasarequietand____________(peace)animals.3Iftigershavebabies,they____________(live)asafamily.4Ithinkit's____________(danger)totouchwildanimals.5Becareful!Thereare____________(wolf)inthemountain.11/13II.CompletethesentencesaccordingtotheChineseprovidedinbrackets.Usethecorrectformofthewords.

1CanJimworkoutthismathsproblem____________(單獨地)?2Weshouldtryourbestto____________(保護)wildanimals.3InAustralia,NewZealandandSouthAfrica,sharks____________(攻擊)peopleeveryyear.4MrWualways____________(勉勵)ustoworkhardinourlessons.5Ifhuntersdonothunt,tigerswill____________(生存).6____________(遺憾地是),wedon'tseemtohavemuchchanceofwinningthematch.12/13III.Fillintheblankswiththecorrectformoftheverbsinbrackets.1Ifhe____________(come)heretomorrow,he____________(see)hisfather.2Thestudentsarebusy____________(get)readyfortheirlessons.3Whenthetraffic____________(stop),youcancrosstheroad.4Ifyou____________(notstudy)hard,you____________(notpass)theexam.5They____________(help)thefarmers____________(pick)applesifit____________(notrain).6Pleasegivemeacallafteryourparents____________(arrive)inShanghai.