2017-2018学年高中英语 第四单元 periodⅳ using language课件 新人教版必修2

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1、探究核心知识,Period Using Language 第1步识记核心单词 .根据所给词性和汉语提示写出下列单词 1_n恐龙 2_vt.检查;视察 3_n事件;事变,预学语言知识,感悟教材原文,指导写作提升,4_n灰尘;尘土;尘埃 5_adj.凶猛的;猛烈的 6_n结局;结尾 【答案】 1.dinosaur 2.inspect 3.incident 4dust 5.fierce 6.ending,.将单词与所给英语释义连线 1fierce Ain a faithful manner 2inspect Bviolent and angry 3faithfully Cend,esp of a s

2、tory,film,play or word 4incident Dexamine(sth.)closely;visit(sth.)officially to see that rules are obeyed,that work is done properly,etc.,5ending Eevent or happening,often of minor importance 【答案】 1.B 2.D 3.A 4.E 5.C,第2步掌握高频短语 .根据所给汉语提示写出下列短语 1_ 形成;产生 2_ 按照;根据所说 3_ 以至于;结果 4_ 很久以前 5_ 过去常,6_ 不仅而且 7_ 确

3、定无疑地 8_ 许多 【答案】 e into being 2.according to 3.so that 4.long before 5.used to. 6.not only.but also. 7for sure 8.a number of,.用以上短语的适当形式填空 1She is _ a singer _ an actress. 2I think he lives there but I couldnt say _ 3We work hard _ well have a good grade tomorrow. 4They divided themselves into three

4、groups _ age.,5Mark learned to read _ he started school. 6The commercial centre _ in the late 1870s. 【答案】 1.not only;but also 2.for sure 3.so that 4according to 5.long before 6.came into being,第3步背诵重点句型 .背诵下列教材中出现的句型,体会黑体部分的用法 1They lived on the earth tens of millions of years ago,long before humans

5、 came into being and their future seemed secure at that time. 千百万年前,恐龙就在地球上生活,比人类的出现要早得多,当时它们的前景好像也很安全。,2They learned this from the way the bones were joined together.科学家们是根据恐龙骨骼的连接方式得知的这些。 3When scientists inspected the bones,they were surprised to find that these dinosaurs could not only run like

6、the others but also climb trees. 科学家们观察它们的骨头时,惊奇地发现这些恐龙不仅跟其他恐龙一样可以跑,而且还可以爬树。,速读文章并从四个选项中选择最佳答案 1The main idea of the passage is _ Ahow dinosaurs were discovered Babout dinosaursextinction Cabout the history of dinosaurs Dabout animalsdying out,2From the first paragraph we know that _ Adinosaurs have

7、 recently disappeared Ba number of dinosaurs used to live in Canada Cdinosaurs existence is long before humans came into being Ddinosaurs cant climb trees as other animals do,3The possible reasons for the disappearance of dinosaurs are the following except that _ Athey lived on the earth tens of mil

8、lions of years ago Bit came after an unexpected incident Cthe earth got too hot for the dinosaurs to live on Dnobody knows for sure the reason,4According to a UN report,we know that _ Asome 844 animals and plants have disappeared in the last 500 years Bthe dodo,a very friendly animal can live longer

9、 on the earth Cdinosaurs can not only run but also climb trees Dtoo much dust in the air killed dinosaurs,5From the whole passage we can learn that _ Aif we protect the earth well,dinosaurs cant die out quickly Bthe eggs of twentyfive species will be found in China,Cscientists found a surprising res

10、ult of the brain of the dinosaurs Dthe next part of the passage will be about dodos disappearance 【答案】 1.B 2.C 3.A 4.A 5.D,判断正误(T/F) 1A number of dinosaurs used to live in China.( ) 2The eggs of 25 species have been found in Liaoning Province.( ) 3The dodo was a very friendly animal,which lived on t

11、he Island of Mauritius.( ) 【答案】 13 TFT,1(教材P30)They lived on the earth tens of millions of years ago,long_before humans came_into_being and their future seemed secure at that time. 千百万年前,恐龙就在地球上生活,比人类的出现要早得多,当时它们的前景好像也很安全。 (1)【要点提炼】 long before“早在之前;很早;很久以前”此短语后面可以跟名词、代词或句子,也可单独作状语。,I knew Betty lon

12、g before you got married to her. 早在你和贝蒂结婚之前,我就认识她了。 He said that he had been to Shanghai long before. 他说他很久以前去过上海。,long before/before long,He will arrive here before long. 他很快就会到达这儿。 Before long he had to move on again because of political reasons.由于政治原因,过了不久,他不得不继续搬迁。 He became famous long before t

13、he war. 早在战前很久他就出名了。,选词填空:long before;before long He had worked in this school _ the war broke out,but _ he had to leave the school. 完成句子 早在你告诉我之前很久我就知道他们被邀请来参加晚会的消息。 I knew the news that they were invited to the party,_ you told me.,在我认识他们之前的很久他们就互相认识了。 They had known each other _ I knew them. 还要很久

14、,我们才能到达。 It will be _ we arrive. 【答案】 long before;before long long before long before long before,(2)come into being 形成;产生 We dont know when this world came into being. 我们不知道这个世界是何时开始存在的。 The organization came into being in 1936. 这个组织诞生于1936年。,come into effect 生效 come into power/office 开始执政,上台 come

15、into use/service 开始使用 come into sight/view 看得见,When do the new laws come into effect? 新法律什么时候开始施行? A new type of microscope has come into use. 一种新型的显微镜已开始使用。 【特别提醒】 以上短语及come into being均无被动语态,不用于进行时态。,用come的相关短语填空 Such a custom _(产生)long ago. Einstein was forced to leave Germany after Hitler _(上台) A new law about driving after drinking _(生效)las

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