六上英語unit-5《animals-in-danger》課件

Unit5Animalsindanger5Unit5Animalsindanger5LookandsayLookandsayWhat’syourfavouriteanimal?What’syourfavouriteanimal?Thereweremany…,butnowthereareonlyabout…inthewild.Aretheseanimalsindanger?Thereweremany…,butnowtheInthepast,thereweremanypandas,butnowthereareonlyaboutonethousandsixhundredpandasinthewind.Inthepast,thereweremanypInthepast,thereweremanySouthChinatigers,butnowthereareonlyaboutonethirtyinthewind.Inthepast,thereweremanySInthepast,thereweremanybluewhales,butnowthereareonlyabouttenthousandinthewind.Inthepast,thereweremanybWecannotseesomekindsofwildanimalsnow.

LookandreadWecannotseesomekindsofwiAurochs（歐洲野牛）livedinEurope.Theywerebigandheavy.Theylookedlikecows.LookandreadAurochs（歐洲野牛）livedinEurope.Dodos（渡渡鳥）livedonalittleisland.Theywerebigbirdswithsmallwings.Theywerecute.LookandreadDodos（渡渡鳥）livedonalittleiSteller’sseacows（大海牛）livedneartheshore.Theylikedswimmingincoldseawater.Theywereblack.LookandreadSteller’sseacows（大海牛）lived

Wemuststopkillingtheseanimalsforfood,fortheirskin,orjustforsport.LookandreadWemuststopkillingtheseanTheseanimalsdonothaveenoughfoodorcleanwater.Wemusthelpprotecttheirhomes.LookandreadTheseanimalsdonothaveenouTheseanimalslosttheirhomesbecausepeoplecutdowntreesintheforests.Wemusthelpsavethetreesandforests.LookandreadTheseanimalslosttheirhomesTalkaboutananimal:Thisanimalisindanger.Inthepast,therewere…Butnowthereare…Theylive…Theyhave/had…Wecan…tosavethem.

ThinkandsayTalkaboutananimal:ThinkandWhatcanwedotosavetheanimalsindanger?ThinkandwriteWhatcanwedotosavetheaniFindananimalthatisindangerandtalkorwriteaboutit.FinishWorkbookpages27and29.HomeworkFindananimalthatisindang謝謝聆聽！謝謝聆聽！第三部分身邊的化學物質第11講常見的酸第三部分身邊的化學物質第11講常見的酸欄目導航思維導圖考綱導航知識梳理基礎過關能力提升中考回顧欄目導航思維導圖考綱導航知識梳理基礎過關能力提升中考回顧思維導圖思維導圖考綱導航考綱導航六上英語unit-5《animals-in-danger》課件知識梳理

常見的酸(鹽酸、稀H2SO4)的物理性質和用途H+（或氫離子）酸根陰離子鹽酸硫酸知識梳理常見的酸(鹽酸、稀H2SO4)的物理性質和用途揮發(fā)白霧揮發(fā)白霧減小減小增大減小胃酸干燥劑減小減小增大減小胃酸干燥劑六上英語unit-5《animals-in-danger》課件六上英語unit-5《animals-in-danger》課件濃硫酸水濃硫酸水

稀鹽酸和稀硫酸的化學性質以及酸的通性

H+（或氫離子）酸根陰離子紅色變色稀鹽酸和稀硫酸的化學性質以及酸的通性H+（或氫離子2HCl+Fe=FeCl2+H2↑H2SO4+Zn=ZnSO4+H2↑2HCl+Fe=FeCl2+H2↑H2SO4+六上英語unit-5《animals-in-danger》課件6HCl+Fe2O3=2FeCl3+3H2OH2SO4+CuO=CuSO4+H2O6HCl+Fe2O3=2FeCl3+3H2OH2HCl+NaOH=NaCl+H2OH2SO4+Ba(OH)2=BaSO4↓+2H2OHCl+NaOH=NaCl+H2OH2SO4+2HCl+CaCO3=CaCl2+H2O+CO2↑H2SO4+BaCl2=2HCl+BaSO4↓HCl+AgNO3=HNO3+AgCl↓2HCl+CaCO3=CaCl2+H2O+CO六上英語unit-5《animals-in-danger》課件

溶液的酸堿性和酸堿度

溶液的酸堿性和酸堿度六上英語unit-5《animals-in-danger》課件無色無色紅色紅色紫色藍色無色無色紅色紅色紫色藍色六上英語unit-5《animals-in-danger》課件酸堿度0～14酸堿度0～14酸強中堿強酸強中堿強玻璃棒標準比色卡玻璃棒標準比色卡六上英語unit-5《animals-in-danger》課件基礎過關常見的酸(鹽酸、稀H2SO4)的物理性質和用途D基礎過關常見的酸(鹽酸、稀H2SO4)的物理性質和用途DDDCC稀鹽酸和稀硫酸的化學性質以及酸的通性D稀鹽酸和稀硫酸的化學性質以及酸的通性DCCCCCCCCDD

溶液的酸堿性和酸堿度

D溶液的酸堿性和酸堿度DBB能力提升B能力提升BBB六上英語unit-5《animals-in-danger》課件堿性2、5堿性2、532NaOH+H2SO4=Na2SO4+2H2O32NaOH+H2SO4=Na2SO4+2H2OccFe2O3+6HCl=2FeCl3+3H2O復分解反應Fe2O3+6