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【正文】 吃苦耐勞、堅(jiān)持不懈、團(tuán)結(jié)協(xié)作、創(chuàng)造探索精神等。(2)展示了當(dāng)時(shí)奴隸的悲慘命運(yùn),他們的生命安全、地位毫無保障??罩谢▓@是古巴比倫勞動(dòng)人民智慧的結(jié)晶,被后人稱為古代世界七大奇跡之一,雖然已不復(fù)存在,但作為古代的建筑奇觀,仍被傳誦至今。其中,最大的是胡夫的金字塔。歷史與社會(huì)81.D 2.C 3.B 4.B 5.A 6.C 7.神經(jīng)元樹突細(xì)胞體軸突 8.感受器傳入神經(jīng)神經(jīng)中樞傳出神經(jīng)效應(yīng)器 9.(1)胰島素(2)血糖下降胰島素91.A 2.D 3.D 4.D 5.(1)內(nèi)臟(2)肌肉與皮膚(3)略101.D 2.C 3.A 4.D 5.B 6.①圖略②溫度改變時(shí)調(diào)節(jié)鉛筆芯兩端電壓不變③鉛筆芯的電阻隨溫度升高而減小 7.(1)可能與蘋果的甜度有關(guān)(2)蘋果的導(dǎo)電性與其甜度有關(guān)與完整性能無關(guān) 8.正確9.(1)小燈泡的燈絲斷了,換上新電珠;(2)電池裝反了,安裝正確。(3)單側(cè)光照射促進(jìn)生長素向背光側(cè)轉(zhuǎn)移。51.B 2.C 3.B 4.C 5.B 6.D 7.鋒復(fù)雜 8.水氣濕度計(jì)干球毛發(fā) 9.大低大陸海洋西北 10.略 11.略 12.C61.B 2.B 3.C 4.C 5.C 6.C 7.D 8.A 9.bbdfd71.B 2.B 3.B 4.C 5.陽光水分 6.(1)光并未影響生長素的分解和生長素的向下運(yùn)輸。41.B 2.D 3.D 4.A 5.A 6.D 7.①防止對太陽輻射的吸收,影響測量結(jié)果。C時(shí),a、b兩種物質(zhì)的溶解度相等飽和溶液。8.3∶4 9.略 10.(1)①④⑤(2)①②③或①②④(3)①③④31.A 2.B 3.B 4.B 5.B 6.溶解過濾蒸發(fā) 7.約26.5%約26.5% 8.(1)隨著溫度的升高,a物質(zhì)的溶解度上升明顯。11.D 2.D 3.C 4.D 5.D 6.(1)A.蒸發(fā)B.水汽輸送C.降水D.地表徑流E.下滲F.地下徑流(2)海陸間 7.負(fù)氫 8.80021.C 2.D 3.B 4.D 5.B 6.等于等于 7.瓶口截面小,液體深度增大,液體壓強(qiáng)也增大。C 5.E三、1.C 2.D 3.A 4.A 5.B 6.D 7.B 8.C 9.D 10.B9一、1.D 2.C 3.A 4.B 5.A二、1.Heistooyoungtogotoschool. 2.Sheisagreattennisplayer. 3.Yesterday,LiMingwonfirstprizeinthespeechcompetition 4.WhendidyoustartlearningEnglish? 5.Heisacreativeperson/man.三、1.B 2.C 3.B 4.D 5.A10一、1.national 2.growup 3.part-timejob 4.keephealthy/fit 5.computerprogrammer二、1.D 2.C 3.B 4.C 5.D 6.B 7.D 8.A 9.D 10.B三、1.A 2.C 3.B4.D11一、1.dothedishes,cleanthetable,cleanthefloor,cookthemeal,takeoutthetrash,washthecar,cutthegrass,foldtheclothes,watertheflowers,dothelaundry?二、2.can’t 3.haveto 4.I’ll 5.don’t 6.couldI 7.do三、1.D 2.A 3.B 4.A 5.D12一、1.e 2.b 3.f 4.d 5.a二、1.B 2.C 3.B 4.A 5.C三、LastSaturdaymorningMrChenlefthomeearlytogofishing.Verysoonhegottoariver.Hesatontheriversideandbegantofish.Thesunwasshiningbrightlyoverhishead.Buthewasunlucky.Whenthesunwentdown,hestillhadn’tcaughtanyfish,sohefeltverysorry/sad.Hethoughtthathiswifemightlaughathimbecausehehadcaughtnothing.Whatshouldhedo?Hebecameworried.Suddenlyhegotanidea.Herantothefishmarketatonceandboughttwobigfish.Thenhehurriedbackhappily,thinkingthathiswifewouldsaysomethinggoodtohim.13一、1.fifty-seven 2.kilometers 3.concert 4.necessary 5.both 6.moreoutgoing 7.serious 8.minutes 9.sending/posting 10.invitation 11.faster/quicker 12.laughing二、1.C 2.D 3.C 4.B 5.D 6.A 7.D 8.A 9.D 10.A14一、1.creative 2.Hens 3.slices/pieces 4.leader 5.ingredients 6.born 7.deli 8.Seriously 9.Italian 10.grows二、1.F 2.H 3.D 4.A 5.B 6.C 7.E 8.G 9.I 10.J 11.I 12.J 13.H 14.C 15.E 16.B 17.A 18.G 19.D 20.F三、1.KFC 2.SmallPotatoRestaurant 3.MoonlightRestaurant 4.SmallPotatoRestaurant 5.Jason’ssnack6.MoonlightRestaurant15一、1.A 2.B 3.B 4.A 5.D二、1.B 2.A 3.C 4.D 5.C 6.A 7.B 8.D 9.B 10.B三、1.C 2.B 3.A 4.D 5.A 1一、1.C 2.B 3.A 4.B 5.C 6.A二、1.E 2.C 3.A 4.B 5.D三、1.Twiceaweek. 2.Becausetheythinkbasketballisdifficultforthem. 3.Herunsfor30minutes. 4.Threetimesamonth. 5.Becauseshelikesjunkfoodandshedoesn’tliketoexercise.四、1. 1∶00 2.2∶45 3.4∶30 4.6∶15 5.8∶002一、1.headache 2.eyes 3.sore 4.thirsty 5.angry二、1.B 2.C 3.C 4.D 5.A 6.C 7.A 8.D 9.B 10.B三、Problems:betired,can’tsleepwell,haveasorebackTreatments:Shouldhavearest.Shouldn’tdrivethecartowork;Don’tthinktoomuch.Drinksomemilkbeforegoingtobed;Mustn’tworktoohard,Shouldliedownandhaveagoodrest.3一、1.exciting 2.listening 3.sounds 4.Babysitting 5.Tourists二、1.A 2.C 3.B 4. D 5.B三、DearMissWang,I’msorryIcan’tgotoschooltoday.Ihaveafever.Thismorningmymothertookmetoseethedoctor.Thedoctorlookedmeovercarefullyandsaidtherewasnothingseriouswithme.Hetoldmetotakesomemedicineandhaveagoodrestfortwodays.SoI’dliketoaskfortwodays sickleave. Thanksalot. Emma4一、1.sixkilometers 2.Bysubway 3.Howlongdoesittakeyoutogettoschoolbysubway 4.fiveminutes 5.onfoot 6.farfrom 7.bus 8.ridemybike 9.tenminutes 10.twentymi-nutes二、1.D 2.B 3.B 4.A 5.C 6.C 7.A 8.B 9.D 10.A 5一、1.D 2.C 3.C 4.C 5.D 6.B 7.A 8.C 9.C 10.A二、picnic,TheMoonPark,NextSunday,April28th,schoolgate,eight,morning,thefood,yourself,Fred6一、1.going 2.win 3.brighter 4.curlier 5.funnier二、1.D 2.A 3.C 4.C 5.C三、1.A 2.B 3.A 4.A 5.A7一、1.teaspoons 2.butter 3.cutup 4.Pour 5.bowl二、1.E 2.B 3.D 4.C 5.A三、DearBruce,Thankyouforreadingmyletter.I’mamiddleschoolstudentinBeijing,China.Iamfourteen.IstudyatBeijingMiddle School.Iamtallandthin,sobasketballandfootballaremyfavouritegames.Ihavealotoffriendsatschool.Sometimeswegooutforapicnictogether.Sometimeswegooutfordinnertogether.AndIoftenplaybasketballwiththemafterschool.Myhomeisnotfarfrommyschool.Igotoschoolonfooteveryday.Ittakesme5minutes.Andbothmyparentsareworkers.Theyworkinthesamefactory.Lookforwardtoyourletter.8一、1.C 2.C 3.B 4.A 5.A 6.C 7.B 8.D 9.A 10.C二、1.B 2.D 3.F 4.11.5.3m91.B 2.A 3.D 4.A 5.> 6.≤21 3 7.3a-7≤0 8.x<225 9.(1)x≤1(2)x≤-11 10.(1)>(2)>(3)>(4)>(5)>(6)= 規(guī)律:a+b≥2ab(a,b為正數(shù))11.12,13,14,15,16,17,18,19,20101.C 2.C 3.D 4.C 5.-1;2<x<3 6.a≥3 7.-6 8.a<x≤b 9.(1)1<x<4(2)-7 <x≤110.①y=20-2x②5<x<10111.B 2.C 3.C 4.C 5.幾排幾座 6.-1(,)(,)(,)(,)2 7.(7,-2)8.(-3,-2)或(7,-2)9.電視臺41廣場22學(xué)校53汽車站4510.(1)關(guān)于x軸對稱(2)關(guān)于y軸對稱 11.A(4,3)P(-4,-3)B(3,1)Q(-3,-1)C(1,2)R(-1,-2)橫坐標(biāo)變成相反數(shù),縱坐標(biāo)變成相反數(shù)N(-x,-y)121.B 2.B 3.B 4.C 5.x≠4 6.3 7.y=12x+2 8.y=1.8x-6(x>10)9.16y=8(0<x≤3)圖略3x=5y=1.2x+4.4(x>3)10.1<k<2 11.y=25131.A 2.D 3.B 4.C 5.π,S,R 6.-3 7.y=x+1(答案不唯一)8.y=2x+3 9.y=242345x-5 10.(1)y=-3x+4(2)(0,-2)11.(1)25cm 30cm 2.5小時(shí) 2小時(shí)(2)y甲=-10x+25(0≤x≤2.5),y乙=-15x+30(0≤x≤2)(3)x=1141.D 2.D 3.C 4.A 5.笛卡爾 6.k=-32 7.-2,2 8.8 9.x≤1 10.(1)y=-3x-5圖略(2)5(3)-8≤y≤7 11.(1)96120(2)145(3)y=-x+145(x≥25)151.D 2.A 3.C 4.D 5.-5≤y≤19 6.三 7.0 8.(-2,4)等腰直角y=x+2 9.1<x<4 10.(1)k=1,b=2(2)略(3)(0,2)(4)x=-2(5)x>-2 11.(1)a=3,c=5 y=3x(0≤x≤6)(2)28元y=5x-12(x>6)或80176。 ∠3+∠2=90176。10.(1)40 20(2)1050(3)略71.A 2.B 3.C 4.B 5.直四棱柱 6.20000 7.60176。(2)20176?!希粒剑常?76。 8.1 9.略 10.55176。40176。又因?yàn)椤希粒拢疲健希拢茫扑浴希茫拢疲健希拢模埔驗(yàn)椤希拢模疲健希粒模潘浴希茫拢疲健希粒模庞忠驗(yàn)椤鳎粒茫拧铡鳎茫拢扑浴希粒茫牛健希茫拢扑浴希粒茫牛健希粒模潘浴鳎粒模檬堑妊切?41.C 2.D 3.B 4.A 5.13或119 6.等腰 7.70176?!希茫拢疲健希粒茫牛拢茫剑粒盟浴鳎拢茫啤铡鳎茫粒牛ǎ玻鳎粒模檬堑妊切?,理由如下:因?yàn)椤希茫拢疲希拢茫疲剑梗?76?!希粒茫牛希拢茫疲剑梗?76。 9.25 10.135176。所以GM⊥HM 11.(1)能,理由如下:延長AP交NB于點(diǎn)C,因?yàn)椋停痢危危滤浴希粒健希粒茫掠忠驗(yàn)椤希粒校拢健希粒茫拢希滤?
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