英语人教版八年级下册Unit 7　What is the highest mou.ppt

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1、R 八年级下册八年级下册Whats the highest mountain in the world?Unit 7 GrammarFocusWhats the highest mountain in the world?Qomolangma.How high is Qomolangma?Its 8,844.43 meters high.Its higher than any other mountain.Which is the deepest salt lake in the world?The Caspian Sea is the deepest of all the salt lake

2、s.Did you know that China is one of the oldest countries in the world?Yes,I did.Its much older than the US.一、形容词、副词的比较级和最高级一、形容词、副词的比较级和最高级u概述：概述：英语中的形容词和副词有三个等级，即英语中的形容词和副词有三个等级，即原级、原级、比较级比较级和和最高级最高级。比较级比较级主要用于主要用于两者之间两者之间作比较作比较。最高级最高级主要用于主要用于三者或三者以上三者或三者以上进行比较。进行比较。u规则变化规则变化直接直接加加-er 或或-esttalltal

3、lertallest longlongerlongest以以不发音的字母不发音的字母e结尾的单词直接结尾的单词直接加加-r 或或-st以以“辅音字母辅音字母+y”结尾，结尾，把把y变为变为i，再加，再加-er 或或-estnicenicernicestheavyheavierheaviest重读闭音节重读闭音节（末尾只有一个辅音字母末尾只有一个辅音字母）双写辅音字母双写辅音字母再加再加-er或或-est部分双音节词和多音节词部分双音节词和多音节词 分别在原级前分别在原级前加加more构成比较级和构成比较级和most构成最高级构成最高级 bigbiggerbiggestslowlymore sl

4、owlymost slowlybeautifulmore beautifulmost beautiful原级原级比较级比较级最高级最高级good/wellbetterbestbad/illworseworstmany/muchmoremostlittlelessleastoldolder/elderoldest/eldestfarfarther（更远）更远）/further（进一步的）进一步的）farthest/furthestu不规则变化不规则变化（1）使用比较等级的基本原则：不作比较用原级，）使用比较等级的基本原则：不作比较用原级，两者比较用比较级，多者比较用最高级。两者比较用比较级，多者

5、比较用最高级。（2）在形容词最高级前通常用）在形容词最高级前通常用the，在副词最高级前，在副词最高级前 可用可用the，也可省略。，也可省略。（3）比较级前常用的修饰语有）比较级前常用的修饰语有 far，even，a lot，a bit，much等。等。u使用比较等级应注意的几点：使用比较等级应注意的几点：二、英语中四位及四位以上数的表达与朗读二、英语中四位及四位以上数的表达与朗读u1000以上的基数词的表示法：以上的基数词的表示法：先从右至左数，每三位数加一个逗点（即以此把先从右至左数，每三位数加一个逗点（即以此把数目分为若干段）。数目分为若干段）。第一个逗点前第一个逗点前的数为的数为 t

6、housand（千）（千）；第二个逗点前第二个逗点前的数为的数为 million（百万）（百万）；第三人逗点前第三人逗点前的数为的数为 billion（十亿）（十亿）。9,883 nine thousand,eight hundred and eighty-three65,359sixty-five thousand,three hundred and fifty-nine265,468two hundred and sixty-five thousand,four hundred and sixty-eight60,263,150 sixty million,two hundred and

7、sixty-three thousand，one hundred and fifty1.英语没有英语没有“万万”这个单位这个单位，要表示，要表示“万万”须须借用借用 thousand，如，如“一万一万”用用“十个千（十个千（ten thousand）”表示，表示，“十万十万”用用“百个千（百个千（one hundred thousand）”表示。表示。2.在在hundred后通常加上连词后通常加上连词and。若读数中没有。若读数中没有hundred，则在则在thousand后加后加and。u注意注意：4aFill in the blanks with the correct forms of

8、the words in the box.big much popular long old high1.The Amazon River is one of the _ rivers in the world.Its a little _ than the Yangtze River.longestlonger2.Qomolangma is 8,844.43 meters _.Its one of the most _ places for serious mountain climbers.3.No ocean in the world is as _ as the Pacific Oce

9、an.4.Although Japan is _ than Canada,it is _ smaller.highpopularbigoldermuchbig much popular long old high4bWrite two comparisons about two topics.Write true facts.Two rivers:_ and _the Yangtze Riverthe Amazon RiverThe Amazon is longer than the Yangtze,but the Yangtze is the longest river in China.T

10、he Yangtze River is almost as long as the Amazon River.Two cities:_ and _1._.2._ _.Shanghai SydneyShanghai is as modern as SydneyShanghai is much smaller than Sydney.Sydney isalmost 2 times as big as ShanghaiTwo animals:_ and _1._.2._ _.a fishA shark is bigger than a fish.A fish is smaller than a sh

11、ark.A shark eats more than a fish.a shark4cWrite five questions using comparisons.Then ask your partner your questions.1._2._3._4._5._What is the highest building in our city?What is the biggest supermarket in our city?Who is the tallest student in our class?Who is the shortest student in our class?

12、Who sings the best in our class?Exercise 1.Fish take _ oxygen through their gills.A.up B.into C.in D.for2.There are so _ toys in the shop that I cant decide which to buy.A.such B.many C.more D.thatCB3.The policeman showed great bravery _ danger.A.in the face B.in the front of C.in the face of D.befo

13、reC4.It is said that it is _ today as yesterday.Shall we go skating this afternoon?A.the hottest B.as hot C.hottest D.hotterB5.Shanghai is bigger than _ in Japan.A.any other city B.all the other cities C.any city D.the other cities6.She looks _ than she does.A.the more older B.very older C.much older D.more olderCC