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Unit1Topic2SectionB精品学案学习目标:掌握本课的重点词汇和短语复习形容词比较级的用法继续学习数字表达。2.能听懂高位数字并做出正确判断。3.能通过整合对话内容提升综合语言运用能力。重点难点:能更快更好的听懂和朗读高位数字。能正确使用数字表达各国的人口现状。课前预习:阅读1a找出下列单词和短语翻译背熟:Population________billion__________increase________reach_______Russia_________Luckily_________policy_______measure_________developed/developingcountries____________haveapopulationof…______________increaseby__________carryout____________theone-childpolicy_______________.找出下列句子并理解翻译:(1)Itsaystheworldhasapopulationof6.8billion.(2)Itisincreasingby80millioneveryyear.(3)Whichcountryhasthelargestpopulation?(4)—What’sthepopulationoftheUSA.?—It’s…(5)Soitis.(6)Thepopulationproblemismoreseriousindevelopingcountries.3.独自完成1c.4.阅读Part2尝试学习数据的读法与写法。学习指导:1).Anditisincreasingby80millioneveryyear.译:__________________________点拨:increaseby-增加了…increaseby+倍数或百分数。拓展:increaseto增加到…increaseto+具体的增长后的数字。练习:a.Ourpayhasalreadyincreasedbythreetimes.译:______________________b.Ourriceoutputhasincreasedto6milliontonsthisyear.译:____________2).Itshowsthatthepopulationindevelopingcountriesislargerthanthatindevelopedcountriesdoesn’tit?译:____________________________思考:你能解释一下句中的两个that吗?(1)______________________________(2)_______________________3).---Thepopulationproblemismoreseriousindevelopingcountries.---Soitis.译:____________________________________________点拨:Soitis.半倒装句含义是:A的确如此。结构是:so+主语+be/助动词/情态动词练习:a.--IthinkTomcanworkouttheproblem.--Sohecan.译:__________________b.---It’safinedaytoday.---____________________.(的确是这样)c.---Theyhavejustfinishedtheirhomework.---_____________.(的确是这样)注意:完全倒装句和半倒装句是重要考点一定要观察理解并会使用!练习:--Theycanswimwell.--So________.--Johnswimswell.--So________.比较翻译--Janeisacutegirl.--SoisMaria.____________________________--Janeisacutegirl.--Sosheis.________________________________4).carryout“实施执行”后常接表示“计划