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1、八年级英语Unit7Whatsthehighestmountainintheworld第3课时(GrammarFocus-4c)同步语法精讲精练课件形容词比较级的句型结构“形容词的比较级than比较对象”。前后相比较的两个事物一定要属于同类，而且做比较时，一定要避免自身与自身相比。表示一个范围内两事物的比较用“比较级thanany other单数名词”。eg：He is taller than any other student in his class.他比班上任何一个学生的个子都高。“as形容词原形as比较对象”，意为“与一样”。其否定形式为“not so/as.as.”，意为“不及；不与
2、一样”。eg：This film is(not)as interesting as that one.这部电影(不)和那部电影一样有趣。“the比较级，the比较级”表示“越，越”。eg：The more you read，the more you know.你书读得越多，你知道得就越多。“比较级and比较级”表示“越来越”。eg：Our city is more and more beautiful.我们的城市越来越漂亮了。选择疑问句中，常用句型：Which/When/Whobe形容词比较级，A or B?eg：Which is healthier，water or drinks？水和饮料哪
3、一个更健康？【注意】修饰比较级可用much，a little，even，still，a lot等。当比较级后有of the two.之类的短语时，比较级前要加定冠词the。形容词最高级的句型结构“主语bethe形容词最高级in/of范围”表示“在某范围内最”。eg：Giraffe is the highest in the zoo.动物园内长颈鹿最高。“one ofthe形容词最高级可数名词复数”表示“最的之一”。eg：China is one of the oldest countries in the world.中国是世界上最古老的国家之一。“the序数词(除了first)形容词最高级可
4、数名词单数”表示“第几(大，长等)”。eg：The Yellow River is the second longest river in China.黄河是中国的第二长河。选择疑问句中，常用句型：Which/Who.the形容词最高级，A，B or C?eg：Who is the most creative kid in your family，Mary，Jane or Tony？在你家谁是最有创意的孩子，玛丽、简还是托尼？【注意】形容词最高级前通常要加定冠词the。但前面若有物主代词，指示代词或名词所有格等修饰时，不能用定冠词the。形容词最高级常与介词in或of引导的短语连用，与in连用
5、意为“在内，”表示“在某范围内”，不一定是同类；与of连用意为“在某一类中”，表示“属性”，介词后的名词或代词与句中的主语是同一类人或物。一、用所给单词的适当形式填空。1Of all the animals，I think tigers are (dangerous)2The Pacific Ocean is a lot (big)than any other ocean.3This is one of (old)universities in Europe.4The next exercise is much (difficult)than this one.5I want to becom
6、e as (strong)as my father.the most dangerousbiggerthe oldestmore difficultstrong二、单项选择。6Is Tina _ than Tara?Yes，but Tara is _ in her class.Ataller；the heaviestBtall；heavyCtaller；heavier Dthe tallest；he heaviest7Bob knows how to cut the cost of the project.Im sure they can do the work with _ money an
7、d _ people.Aless；less Bfewer；moreCmore；fewer Dless；fewerAD8The Internet service fees are too high，and the speed is too slow.Thats why Premier Li Keqiang asks operators(运营商)to provide _ Internet.Amany cheaper and quickerBvery cheaper and quickerCmore cheaper and quickerDmuch cheaper and quicker9You s
8、houldnt eat too much junk food.Its bad for your health.Youre right._ junk food I eat，_ I will be.AThe less；the healthier BThe less；the healthyCThe more；the healthier DThe more；the healthyDA10Which is the longest river in China，the Changjiang River or the Yellow River?The Changjiang River.The Yellow River is _ river in China.Athe second longest Bthe second longerCa second longest Dthe second longA谢谢观赏谢谢观赏