八年级四单元1话题导学案 Unit 4 Topic 1 形容词的比较等级(仁爱版英语八年级)

发布时间:2016-8-27 编辑:互联网 手机版

课型:新授课 设计:谭莉 审核 八年级英语教师 审批:

学习目标:1.掌握形容词比较级和最高级的构成

2.掌握形容词比较级和最高级的用法

学习重点:形容词比较级和最高级的构成及用法

学习疑点:形容词比较级和最高级的用法

学习方法:自主学习,合作探究

课前准备

英汉互译

1.强壮的___________ 2.伟大的___________ 3.高的_______

4.短的___________ 5.慢的___________ 6.迟的___________

7.勇敢的___________ 8.fine___________ 9.nice___________

10.big___________ 11.fat___________ 12.thin___________ 13.red___________ 14.早的___________ 15. 容易的___________

16.幸福的___________. 17. lucky___________ 18.funny___________

19.beautiful__________ 20.wonderful___________ 21.interesting__________

22 流行的___________ 22.美味的___________ 23.重要的___________

24.serious_______ 25著名的__________ 26.good___________ 26.bad___________ 27.many/much___________ 28.little___________ 29Well/good___________30.badly___________ 31.far___________

教学步骤:

一.学生看教材P.119 ,并完成下列小结

(一)形容词比较等级的含义 :形容词有________,_________,_________,三个比较等级。

1. 原级(原形)如:他的头发很长。His hair is very ___________.

2. 比较级:表示“较…” 或“更…些”。

如:我的头发比他的长。My hair is ________ ________his.

健康比财富更重要。Health is __________ _________than wealth.

3. 最高级:表示“最…”

如: 快乐是最好的药。Happiness is the ____________ medicine.

( 二).形容词比较级、最高级的构成规则

单音节词和部分双音节词的构成方法:

1.一般在词尾加_________或_______,

如:small---smaller---smallest, long---_________--__________

2.以字母_____结尾的词加____或______,

如:large-larger---largest, nice---__________ -____________

3.以重读闭音节结尾并且末尾只有一个辅音字母的应先__________,再加________ 或__________.

如;big----_______--__________; fat-________-__________

4. 以辅音字母 + y结尾的,先变y为___,再加___或______.

如:heavy---___________-__________

多音节词和部分双音节词的构成方法:

在原级前加______________ 或 __________________,

如popular,-more popular-most popular

Interesting-______________ -__________________

特殊的:good/well---- better best bad/ill --- worse worst

Manny/much--- more most little ---- less least

far---- farther/further 或 further/furthest

old – older/elder---oldest/eldest

(三). 形容词比较级、最高级的用法

1.学生小结

2.教师点拨

比较级:A +比较级 + than + B (A.B不能相互包括;A比B在某方面程度更高)

如:猫比其他动物更可爱。 Cats are more lovely than other animals.

最高级:A +the +最高级 +in/of(A在某方面程度最高 ,)

注:A应在那个范围内程度最高

误:Tom is the tallest of all his classmates.

※同级比较: A=B A + as + 原级 + as + B 表示A.B在某方面程度一样。

如:圣诞树几乎和房间一样高

The Christmas tree is as tall as the room.

A不如 B A not as/so+原级+as + B 表示A在某方面不及B,此类句型可以改为比较级形式。

如:他没有我高。He is not as (so) tall as I/me.

=He is shorter than I/me.

这个男孩不如那个男孩细心。

This boy is not as careful as that boy.

=This boy is less careful than that one.

=That boy is__________________________.

二.比较结构中应注意的七个方面见教材P.120

1.比较级与最高级可以转化

如:在中国,长江比其他任何河流都长。

The Yangtze River is _______than any other river in China.

= The Yangtze River is _____ ________ river in China.

2.当某一事物与其他事物作比较时,被比较事物中不能包括本身。

Eg1.他比班上其他学生高。

He is _______ than any ________student in his class.

Eg2.上海比湖北任何一个城市都大。

Shanghai is __________ than ________ ________ city in Hubei.

3.如果比较对象相同,可用 that/those 代替第二个对象。

Eg1:重庆的天气比上海的天气要好。

The weather in Chongqing is better than that in Shanghai.

Eg2:第二册的课文比第三册的容易得多。

The texts in Book2 is much easier than ________in Book3.

4.两个比较级用and 连接,表示“越来越…”

(e.g) bigger and bigger 越来越大

more and more beautiful 越来越美

5.the + 比较级,the + 比较级,表示“越….越…..”

越多越好。The more ,the better.

你练得越多,做起来就变得越容易。The more you practice , the easier it becomes.

6.表示“两者较…..”时,用 “the + 形容词比较级 + of 短语”来表达

他是两人中较高者。He is the taller of the two.

7、形容词的比较级可以用much , a little , a lot ,even ,three years, third, twice等修饰,使原来的比较级在语意上更加明确,

vv如: 鸡要比奶牛小得多。Chickens are much smaller than cows.

我比你大点。I am a little older than you.

8..one of + 最高级+单数名词 表示“最…之一”

One of the most famous rock bands

9..序数词+最高级+单数名词 表示“第几…”

如:我是班上第三高的男生。I’m the third tallest boy in our class.

10..最高级前面要加 the ,但最高级前有指示代词,物主代词或名词所有格修饰时,其前不能再加the

(e.g) 这是我最好的一本书。This is my best book.

巩固提高

一.写出下列形容词的比较级和最高级

1.high____________ __________ 2.strong____________ _____________

3.large____________ __________ 4.nice____________ __________

5.red____________ __________ 6.thin____________ __________

7.heavy____________ __________ 8.early____________ __________

9.wonderful____________ __________ 10.iovely____________ __________

11.well ____________ __________ 12.much____________ __________

二.单选

1.I think plants are _______the pets.

A. beautifuler B. more beautifuler

C .beautiful D. more beautiful

2.Birds are _______than insects.

A. big B. bigger C .biger D. more big

3.I don’t think this question is___ than that one. It is ____of these questions.

A. easier , more difficult B. easier ,the most difficult

C . easiest, more difficult D. easier , much more difficult

4.The box is very_______.

A. heavy B. heavier C .heaviest D. more heavy

5.Our garden isn’t so____ as theirs.

A. larger B. largest C .large D. more larger

三.用所给词的适当形式填空

1.Li Lei is the _____________(good) student in our class.

2.Lucy is______________ ( fat) than Kate.

3.Ithink my car is as ________________(nice) as yours.

4.This box is _________________(heavy) of the three.

5.I feel much ________________ ( ill) today.

6. I think maths is the ________________(difficult) subject of all.

7.Who works ________________(careful ),Jack or John?

8.There is _______________(little ) water in this bottle than in that one.

9.Who has the______________(many) apples, Li Lei, Jack or John.

10.Tom grows ______________and ______________(tall) these years.

课后反思