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1、Unit 4 Population Problems1st period本单元目标本单元目标Now discuss these questions and answer themThe answers are1.It shows the population growth.2.Yes,it is.3.Its 6.4 billion.4.They are faced with the problem of overcrowding,population growth,aging population.5.It should control the birthrate.The answers ar
2、e2.5billion6billion6.4agingbirthratelivelongerpopulationgrowthlargechildrendoublingpopulationgrowthovercrowdingAnswer the questionsThe answers are1.Before 1990.2.Before 2005.3.Collecting enough information.4.The past perfect tense.Do some exercises1He asked me _ during the summer holidays.A.where I
3、had been B.where I had gone C.where had I been D.where had I gone 2.What _ Jane _ by the time he was sever?A.did,do B.has,done C did,did.D.had,done3.I _ 900 English words by the time I was ten。A.learned B.was learning C.had learned D.learnt4.She _ lived here for _ years.A.had,a few B.has,several C.h
4、ad,a lot of D.has,a great deal of5.By the time my parents reached home yesterday,I _ the dinner already.A had cooked B.cooked C.have cooked D.was cooked6.She said she _ the principle alreadyA.has seen B.saw C.will see D.had seen7.She said her family _ themselves _ the army during the war.A.has hidde
5、n,from B.had hidden,from C.has hidden,with D.had hidden,with8.By the time he was ten years old,he _.A.has completed university B.has completed the universityB.had completed an university D.had completed university9.She had written a number of books _ the end of last year.A.for B.in C.by D.at 10.He _
6、 to play _ before he was 11 years old.A had learned,piano B.had learned,the piano C.has learned,the piano D.learns,piano.The answers are 1.A.where I had been 2.D.had,done3.C.had learned 4.B.has,several 5.A.had cooked 6.D.had seen7.B.had hidden,from 8.D.had completed university9.C.by 10.B.had learned
7、,the piano 1、了解面对逆境，远比如何接受顺境重要得多2023/3/52023/3/511:27:36 PM。2023/3/52023/3/5Sunday,March 5,20232、一般的伟人总是让身边的人感到渺小Sunday,March 5,202311:27:36 PM3/5/2023 11:27:36 PM23:27Mar-23。2023/3/52023/3/52023/3/53/5/2023 11:27:36 PM3、2023/3/5Mar-2305-Mar-234、昨天是张退票的支票05-Mar-2311:27:36 PM23:272023/3/52023/3/52023
8、/3/5Sunday,March 5,20235、积极人格的完善是本，财富的确立是末05-3月-23。2023/3/52023/3/52023/3/52023/3/53/5/20236、昨晚多几分钟的准备3/5/2023 11:27:36 PM05 三月 20232023/3/52023/3/52023/3/57、每一发奋努力的背，必有加倍的赏赐2023/3/5三月 232023/3/52023/3/52023/3/53/5/20238、业余生活要有意义，不要越轨。2023/3/52023/3/505 March 20239、要及时把握梦想，因为梦想一死3/5/2023 11:27:36 PM
9、。2023/3/52023/3/52023/3/52023/3/510、一个人的梦想也许不值钱，但一个人的努力很值钱。3/5/2023 11:27:36 PM2023/3/505-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/5/2023 11:27 PM3/5/2023 11:27 PM2023/3/52023/3/5谢谢大家谢谢大家1、每一个成功者都有一个开始。勇于开始，才能找到成功的路2023/3/523:272、成功源于不懈的努力，人生最大的敌人是自己怯懦。2023/3/52023/3/52023/3/53/5/2023 11:27:37 PM3、每天只
10、看目标，别老想障碍Sunday,March 5,2023。2023/3/52023/3/52023/3/5Monday,July 19,202105-Mar-234、宁愿辛苦一阵子，不要辛苦一辈子2023/3/5。2023/3/52023/3/52023/3/5Sunday,March 5,20235、积极向上的心态，是成功者的最基本要素2023/3/5。2023/3/52023/3/52023/3/52023/3/53/5/20236、生活总会给你另一个机会，2023/3/511:27:37 PM2023/3/52023/3/52023/3/57、人生就像骑单车，想保持平衡就得往前走21:19:482023/3/52023/3/53/5/20238、业余生活要有意义，不要越轨。2023/3/52023/3/505 March 20239、我们必须在失败中寻找胜利Sunday,March 5,20232023/3/510、一个人的梦想也许不值钱，但一个人的努力很值钱。3/5/2023 11:27:37 PM2023/3/505-3月-2311、在真实的生命里，每桩伟业都由信心开始，并由信心跨出第一步。3/5/2023 11:27 PM3/5/2023 11:27 PM2023/3/52023/3/5谢谢大家谢谢大家