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1、Unit 7 Whats the highest mountain in the world？第三课时第三课时Section A(Grammar Focus4c)目录目录01010202名师点拨课前预习0303课堂小测0404课后作业课课前前预习预习请同学们预习课本请同学们预习课本Section A(课本课本P52)。预习完课本内容，同学们。预习完课本内容，同学们可以试着做以下题目，检测一下自己预习的效果！可以试着做以下题目，检测一下自己预习的效果！1.大海；海洋 n._ 核心单词核心单词ocean2.和一样大 _ 3.太平洋 _ 常考短语常考短语as big asthe Pacific Oc
2、ean4.世界上最高的山是什么？Whats _ in the world?5.珠穆朗玛峰有多高？_ is Qomolangma?6.它有8 848.86米高。Its _.典型句子典型句子the highest mountainHow high8,848.86 meters high7.你知道中国是世界上最古老的国家之一吗？Did you know that China is _ in the world?one of the oldest countries名师点拨名师点拨英语中的形容词在表示“更”时，要用其比较级；在表示“最”时，要用其最高级；原来的形式则称为原级。7 7形容词的比较级和最高
3、级形容词的比较级和最高级1.形容词比较级和最高级的构成形容词比较级和最高级的构成(1)规则变化构成方法构成方法原级原级比较级比较级最高级最高级一般单音节词在词尾加-er或-esttalltallertallest以e结尾的词只在词尾加-r或-stnicenicernicest以辅音字母结尾的重读闭音节词，双写词尾的辅音字母，再加-er或-estbigbiggerbiggest构成方法构成方法原级原级比较级比较级最高级最高级以“辅音字母+y”结尾的双音节词，先改y为i，再加-er或-esthappyhappierhappiest 部分双音节和多音节词，在单词前面直接加more或mostimpor
4、tantmore importantmost important续续 表表（2）不规则变化原级原级比较级比较级最高级最高级good/wellbetterbestbad/badly/illworseworstmany/muchmoremostlittlelessleastfarfarther/furtherfarthest/furthest2.形容词比较级的用法形容词比较级的用法(1)表示两者进行比较时用形容词比较级，其结构为“A+谓语动词+形容词比较级+than+B.”。如：Sams sister is taller than mine.萨姆的妹妹比我的妹妹高。The result was m
5、ore perfect than what we imagined.结果比我们想象的更完美。【注意】【注意】为了避免重复，在从句中常用the one,that,those等词来替代前面出现过的名词，其中the one替代可数名词单数形式，the ones或those替代可数名词复数形式，that替代不可数名词。(2)表示程度的副词，如“两多(a lot/much)两少(a bit/a little)”,even,far以及a few,still,rather等可以修饰形容词的比较级，表程度。如：Shes much/even/a lot/far healthier than she used t
6、o be.她比过去要健康得多。I think Im a little/a bit better today.我想我今天更好一点了。(3)表示两者之间进行选择时，用句型“Which/Who is+形容词比较级，A or B?”表示。如：Who is taller,Li Ming or Wang Tao?谁更高，李明还是王涛？Which sweater is more beautiful,the yellow one or the pink one?哪件毛衣更漂亮，黄色的还是粉色的？(4)表示“越来越”时，用“比较级+and+比较级”表示，多音节词和部分双音节词用“more and more+形容
7、词原级”表示。如：Its getting warmer and warmer in spring.春天天气越来越暖和了。Our hometown is becoming more and more beautiful.我们的家乡越来越漂亮了。(5)表示“越，越”时，用“the+比较级，the+比较级”结构。如：The sooner you come,the better.你来得越早越好。The more worried you are,the less happy youll become.你越焦虑，就会越不开心。3.形容词最高级的用法形容词最高级的用法(1)表示三者或三者以上的人或物进行比较
8、时，用最高级形式。形容词最高级前必须加定冠词the，句末常跟一个in/of 短语来表示范围。如：The Yangtze River is the longest river in China.长江是中国最长的河流。He is the strongest of the three boys.他是三个男孩子中最强壮的一个。（2）表示在三者或三者以上的人或物中进行选择时，用“Which/Who is+the+形容词最高级，A,B or C?”结构。如：Which city is the most beautiful one,Beijing,Shanghai or Guangzhou?哪个城市最漂亮，
9、北京、上海还是广州？（3）表示“最的之一”时，用“one of the+形容词最高级+复数可数名词”结构。如：He is one of the most popular singers.他是最受欢迎的歌手之一。(4)形容词最高级前面可以加序数词，表示“第几的”。如：Qomolangma is the first highest mountain in the world.珠穆朗玛峰是世界第一高山。Billy is the second tallest boy in our class.比利是我们班第二高的男孩。（5）形容词最高级前面可以有物主代词、指示代词、名词所有格等修饰，但此时不能再用定冠
10、词the。如：Cindy is my best friend.辛迪是我最好的朋友。Yesterday was his busiest day.昨天是他最忙的一天。一、根据句意，用所给单词的适当形式填空一、根据句意，用所给单词的适当形式填空1.The blue basket is a little _(heavy)than the black one.2.George is one of _(popular)teachers in our school.3.It was hot yesterday,but it is much _(hot)today.专专 练练 heavierthe most
11、popularhotter4.Which do you like _(well),Chinese,English or math?5.My _(beautiful)dream of all is to travel all over the world.bestmost beautiful二、单项填空二、单项填空()6.Which language is _,Spanish or French?A.difficultB.more difficultC.most difficultD.the difficultB()7.Cherry is _among all the judges(法官).A.
12、the most popularB.the popularestC.most popularD.more popularA()8.He looks _than you,but he isnt as _as you.A.taller;strongerB.taller;strongC.tall;strongerD.tall;strongB()9.Do you like Western food?No.I think the food of our country is _that of Western countries.A.rather good thanB.more better thanC.
13、much better thanD.not so good asC()10.If there are _people driving,there will be _air pollution.A.fewer;lessB.fewer;fewerC.less;fewerD.less;lessA一、根据句意及首字母或中文提示，用单词的适当形式填空一、根据句意及首字母或中文提示，用单词的适当形式填空1.Los Angeles is one of the _(大的)cities in the world.2.The Yangtze River is l_ than any other river in
14、China.3.China is much o_ than the United States.Its a country with a long history.课堂小测课堂小测biggestongerlder4.No salt lake in the world is as d_ as the Caspian Sea.5.What is the h_ building in China?Its the Shanghai Tower.eeptighes二、找出下列句子的错误，并将错误部分在横线上进行更正二、找出下列句子的错误，并将错误部分在横线上进行更正6.The Caspian Sea i
15、s the most deep salt lake in the world._7.Climbing mountains is dangerous than swimming._most deep改为改为deepestdangerous改为改为more dangerous8.Jane is 1.50 meter tall._9.City Movie Theater is largest cinema in our city._10.Tina runs faster than any girl in her class._meter改为改为meterslargest改为改为the largest
16、any改为改为any other三、单项填空三、单项填空（语法专练）()11.Of all the students,Kate is _one in her class.A.carefulB.most carefulC.more carefulD.the most carefulD()12.How hard you are working，Helen！We must！President Xi said that _ we are，_ we will be.A.the more hard-working；the luckierB.the hard-working；the luckyC.more
17、hard-working；luckierD.the most hard-working；the luckiestA()13.I think that Eric writes as_ as Betty.So he does.A.more carefulB.more carefullyC.most carefullyD.carefullyD()14.Whats _mountain in the world？Qomolangma.It is 8,848.86 meters high according to the latest report.（2021遂宁）A.higherB.highestC.the highestD.highC()15.Dr.Yuan Longping had a dream that he could develop rice as _as peanuts(花生).（2021黄石）A.largeB.largestC.largerD.the largestA课后作业课后作业此部分习题详见独立装订的课后作业。请同学们完成课后作业Unit 7的第三课时的练习题。THANKS!