人教版英语八年级下册Unit7总复习课件-(共26张PPT).ppt

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1、初中英语人教版八年级下册,Unit 7 单元总复习课件,词汇训练营,1,句型大闯关,2,语法加油站,3,内容大纲,词汇训练营,1,一、快速说出下列单词或短语。1.平方；正方形 n._2.米；公尺 n._3.深的；纵深的 adj._4.沙漠 n._ 5.人口；人口数量 n._ 6.亚洲 n._ 7.旅行；旅游 v./n._8.古代的；古老的 adj._,square,meter,deep,desert,population,Asia,快速回忆所学单词，看谁说得又快又准！,tour,ancient,tourist 旅行者；观光者,9.保护；防护 v._10.宽的；宽阔的 adj._ 11.成就；成

2、绩 n._12.包括；包含 v._实现目标；成功 v._醒着的 adj._ 面对（问题、困难等）_,protect,wide,achievement,include,快速回忆所学单词，看谁说得又快又准！,succeed,awake,名词形式：protection,in the face of,形容词：successful,动词形式：achieve,单词填空，考查综合运用能力！,1.Russia has the biggest _(人口)in Europe.2.Each student should learn to _(保护)the wild animals.3.The animals in

3、the zoo are usually _(wake)at night.4.Although Lucy tried her best to lose weight,she didnt _(success).5.A wolf is much _(wild)than a dog.,二、根据提示填空。,population,protect,awake,succeed,wilder,句型大闯关,2,本单元重点句子有哪些？看谁说得多！,about 9,600,000 square kilometers in size.大约9，600，000平方公里。,in size，是固定词组，译为：大小（面积）。be

4、+表示面积的数字+in size，表示多大的面积。,2.Qomolangma is higher than any other mountain in the world.珠穆朗玛峰比世界上的任何山都高。,比较级thanany other单数名词，经常用这种形式表示最高级的含义，than前后的比较要在同一范围内。,本单元重点句子有哪些？看谁说得多！,3.The main reason was to protect their part of the country.主要的原因是保卫自己的国家。,protect v.“保护”。protect sb./sth.from 保护某人/某物使其不受。,4

5、.As far as I know,there are no man-made objects as big as this.据我所知，没有任何一个人造物有长城这么大。,as far as I know据我所知。as far as“就来说，至于”,引导状语从句，强调范围或程度，常与动词know,see等连用，可放在句首或句中。,本单元重点句子有哪些？看谁说得多！,5.Why do so many climbers risk their lives?为什么这么多登山者愿意冒生命危险？,risk ones life to do sth.某人舍命做某事,6.One of the main reaso

6、ns is that people want to challenge themselves in the face of difficulties.其中一个主要原因是人们在面临困难的时候想挑战自己。,challenge v./n.挑战。challenge sb.to sth.向某人挑战in the face of 面对（问题、困难等）,本单元重点句子有哪些？看谁说得多！,7.This elephant weighs many times more than this panda.这头大象的重量是这只熊猫的很多倍。,表示倍数的结构是：数词+times+比较级+than+比较对象，“比多/大多少

7、倍”；数词+times+asas+比较对象，“是的多少倍”。,up to 高达up to+数量词 达到（某数量、程度等）；至多be up to sb.“由某人决定”,8.A panda can live up to 20 to 30 years.一只熊猫活20年到30年。,本单元重点句子有哪些？看谁说得多！,9.The babies often die from illnesses and do not live very long.熊猫幼崽常死于疾病，并且活不久。,(1)die from+外因“死于”，主要指事故等方面的外部原因。(2)die of+内因“死于”，主要指死于疾病、衰老、情感等

8、自身原因。(3)die out（家族、物种等）灭绝；绝迹。,完成句子。1.一只大象的重量是一个成人重量的一百倍多。An elephant weighs more than_ _ _heavier than an adult person.2.在困难面前，我们应该从不放弃。We should never_ _ in the_ _ difficulties.3.一只熊猫可以活20到50年。A panda can _ _ _ 20 to 50 years.,“学以致用”，你真的会用了吗？,one hundred times,give up face of,live up to,4.他比其他任何一个男

9、孩都聪明。He is cleverer than _ _ _.5.我冒着生命危险挽救了那个男孩。I _ _ _ to save the boy.,“学以致用”，你真的会用了吗？,any other boy,risked my life,语法加油站,3,大部分形容词、副词有比较级和最高级的变化：原级比较级最高级。1.构成形容词的比较级和最高级的构成有规则变化和不规则变化两种。,总结本单元的语法知识，你掌握了吗,形容词、副词的比较级和最高级,1)绝大部分双音节形容词和单音节形容词的比较级和最高级变化，请看下表：,总结本单元的语法知识，你掌握了吗,总结本单元的语法知识，你掌握了吗,2)以ow，er，

10、ly结尾的个别双音节形容词可以加-er，-est构成比较级和最高级。例：原级 比较级 最髙级narrownarrowernarrowestearlyearlierearliestclevercleverercleverest,3)大部分多音节形容词比较级和最高级的构成是在原形前加more或most。例：原级 比较级最高级beautiful more beautiful most beautifuluseful more usefulmost useful,总结本单元的语法知识，你掌握了吗,4)不规则变化。例：原级 比较级 最髙级good better bestbad,ill worse wor

11、stmany,much more mostlittle less leastfar farther/further farthest/furthest,总结本单元的语法知识，你掌握了吗,2.用法最高级的基本用法：常用“最高级+比较范围”结构，比较范围常用of,in,among引导的短语表达。如：China is one of the oldest countries in the world.中国是世界上历史最悠久的国家之一。The book is the most interesting of all the books.这本书是所有书中最有趣的。,总结语法知识，你掌握了吗,比较级的基本用法

12、：用于两者之间的对比，与than连用。如：This lesson is more difficult than that one.这课比那课难。She is heavier than Kate.她比凯特重。,总结语法知识，你掌握了吗,比较等级的特殊用法：1)比较级与最高级的结构可以转换，意思不变。如：The Yangtze River is longer than the other rivers in China.在中国，长江比其他河流都长。The Yangtze River is longer than any other river in China.在中国，长江比其他任何河流都长。Th

13、e Yangtze River is the longest river in China.长江是中国最长的河流。,总结语法知识，你掌握了吗,2)被比较事物中不能包括本身。He is taller than any other student in his class.他比班上其他学生都高。3)如果比较对象相同，可用that/those代替比较对象。The food in Sichuan is hotter than that in Guangdong.四川的食物比广东的食物辣。4)“the+比较级，the+比较级”表示“越，就越”。The more,the better.越多越好。The m

14、ore careful you are,the fewer mistakes youll make.你越仔细，错误就越少。,总结语法知识，你掌握了吗,5)表示两者中“较”时，用“the+形容词比较级+of短语”来表达。Canada is the larger of the two countries.加拿大是这两个国家中较大的那一个。6)形容词的比较级可用much,a little,a lot,even 等修饰，使原本的比较级在语意上更加明确。Apples are much bigger than oranges.苹果比桔子大得多。Lets go to school a little earl

15、ier.我们早一点去学校吧。The movie is even more interesting.这部电影甚至更有趣。,学以致用，各个击破语法点,单项选择。1.E-mail is much_ than long-distance calling.cheap B.the cheaper C.more cheap D.cheaper2.Which sport do you like _?Swimming.Its _ of all sports,I think.A.most;interestingB.best;more interestingC.best;the most interesting D.better;more interesting,句型大闯关,D,C,学以致用，各个击破语法点,3.We are trying to make our country _ now.A.beauty B.much beautifulC.more and more beautiful D.beautifully4.Who is _ of the two girls?A.the tallest B.taller C.the taller D.tallest,句型大闯关,C,C,