六上英语unit-5《animals-in-danger》ppt课件.ppt

Unit 5 Animals in danger5Whats your favourite animal?There were many,but now there are only about in the wild.Are these animalsin danger?In the past,there were many pandas,but now there are only about one thousand six hundred pandas in the wind.In the past,there were many South China tigers,but now there are only about one thirty in the wind.In the past,there were many blue whales,but now there are only about ten thousand in the wind.We cannot see some kinds of wild animals now.Aurochs（欧洲野牛）lived in Europe.They were big and heavy.They looked like cows.Dodos（渡渡鸟）lived on a little island.They were big birds with small wings.They were cute.Stellers sea cows（大海牛）lived near the shore.They liked swimming in cold sea water.They were black.We must stop killing these animals for food,for their skin,or just for sport.These animals do not have enough food or clean water.We must help protect their homes.These animals lost their homes because people cut down trees in the forests.We must help save the trees and forests.Talk about an animal:This animal is in danger.In the past,there were But now there are They live They have/had We can to save them.What can we do to save the animals in danger?1.Find an animal that is in danger and talk or write about it.2.Finish W orkbook pages 27 and 29.Homework谢谢聆听！第三部分身边的化学物质第1 1讲常见的酸栏目导航思维导图考纲导航知识梳理基础过关能力提升中考回顾思维导图考纲导航知识梳理 常见的酸(盐酸、稀H2SO4)的物理性质和用途 H+（或氢离子）酸根阴离子 盐酸 硫酸 挥发 白雾 减小 减小 增大 减小 胃酸 干燥剂 浓硫酸 水 稀盐酸和稀硫酸的化学性质以及酸的通性 H+（或氢离子）酸根阴离子 红色 变色 2HCl+Fe=FeCl2+H2 H2SO4+Zn=ZnSO4+H2 6HCl+Fe2O3=2FeCl3+3H2O H2SO4+CuO=CuSO4+H2O HCl+NaOH=NaCl+H2O H2SO4+Ba(OH)2=BaSO4+2H2O 2HCl+CaCO3=CaCl2+H2O+CO2 H2SO4+BaCl2=2HCl+BaSO4 HCl+AgNO3=HNO3+AgCl 溶液的酸碱性和酸碱度 无色 无色 红色 红色 紫色 蓝色 酸碱度 014 酸 强 中 碱 强 玻璃棒 标准比色卡 基础过关常见的酸(盐酸、稀H2SO4)的物理性质和用途 D D C 稀盐酸和稀硫酸的化学性质以及酸的通性 D C CC C D 溶液的酸碱性和酸碱度 D B 能力提升B B 碱性 2、5 3 2NaOH+H2SO4=Na2SO4+2H2O c Fe2O3+6HCl=2FeCl3+3H2O 复分解反应 2HCl+Ca(OH)2=CaCl2+2H2O（或“2HCl+Ba(OH)2=BaCl2+2H2O”）3 中考回顾A