2026春仁爱版英语八年级下册Unit 9 Forces of Nature Grammar (p46-47)课件

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2026春仁爱版英语八年级下册Unit 9 Forces of Nature Grammar (p46-47)课件

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(共41张PPT)
2026.06.15
了解不同地区的自然灾害(如沙尘暴、飓风),增强防灾意识。
通过游戏、小组合作等活动,提升自主学习和合作学习的主动性。
学会利用构词法(复合词)和语境推测词义,掌握有效的词汇学习策略。
掌握复合词的构成规则并能正确使用。
理解并运用副词比较级和最高级描述自然灾害中的行为或现象。
通过对比不同灾害的影响程度,培养比较、分析和归纳的逻辑思维能力。
在讨论灾害应对策略时,发展批判性思维和问题解决能力。
snow
man
snow + man = snowman
foot + ball = football
school bag =schoolbag
定义:把两个或多个简单单词拼在一
起,变成一个新词,就叫合成词。
snow + man = snowman
foot + ball = football
school + bag = schoolbag
Compound words 合成词
A snowstorm is a storm with strong winds and a lot of snow.
storm /st rm/n. 暴风雨
snow + storm = snowstorm
A thunderstorm is a storm with thunder and lightning.
/ la tn /n. 闪电
/ θ nd (r)/n. 雷
thunder + storm = thunderstorm
earth + quake = earthquake
An earthquake is a quake of the surface of the earth.
quake /kwe k/n. 震动
outside 外面(out+side) underground 地下(under+ground)
一、合成名词(最多、最常用)
① 名词 + 名词
classroom 教室(class+room) schoolbag 书包(school+bag)
② 动词 + 名词
playground 操场(play+ground) washroom 洗手间(wash+room)
③ 形容词 + 名词
blackboard 黑板(black+board) greenhouse 温室(green+house)
④ 副词 / 介词 + 名词
somewhere 某地 everyone 每人 everything 一切
二、合成形容词(考试必考点)
① 形容词 + 名词 -ed
warm-hearted 热心的
② 名词 + 动词 -ing
English-speaking 说英语的
③ 数词 + 名词(单数)
a five-year-old boy 一个五岁的男孩
a five-years-old boy(错!名词必须单数)
三、合成副词 / 代词(简单记)
homework
schoolbus
bookshop
playground
password
skateboard
flashlight
sandstorm
supermarket
aftershock
fight against 与… 斗争
(草地)
(沙尘暴)
(农田)
(全世界范围的)
take action to do sth. 采取行动做……
grass + land = grassland
sand + storm = sandstorm
farm + land = farmland
world + wide = worldwide
It killed 2698 people.
It’s serious.
形容词原级
It killed about 60,000 people.
It’s more serious than Yushu earthquake.
形容词比较级
It killed about 242,000 people.
It’s the most serious of the three.
形容词最高级
此处 early 为副词
/pr ven n/n. 预防
early → earlier
此处 best 为副词
/p r f rm/
v. 表演
well → better → best
其实跟形容词的比较级最高级是差不多的。
5. 比较级在词前加 _________
最高级在词前加 _________
单音节和部分双音节
fast/faster/fastest 1. 一般直接加 ________
late/later/latest 2. 以不发音的 e 结尾的单词,只加 _____
hot/hotter/hottest 3. 重读闭音节末尾只有一个辅音字母的单
词, ______________________
early/earlier/earliest 4. 以辅音字母加 y 结尾的单词,变 y
为_____再加 _________
多音节和部分双音节
easily/more easily /most easily
er/est
r/st
双写后再加er/est
i
er/est
more
most




表程度 far—further—furthest
good/well—better—best
bad/badly—worse—worst
many/much—more—most
little—less—least
年纪大的 old—older—oldest
较年长的 old—elder—eldest
距离远 far—farther—farthest
close
happy
few
slowly
quickly
hot
busy
beautifully
fast
late
big
more carefully
(the) most carefully
farther
(the) farthest
注意:副词最高级前的 the 可以省略。
1. 我的头发和她的一样长。_____________________________________________
2. 他跑得和他哥哥一样快。_____________________________________________
3. 你做作业和他一样仔细。_____________________________________________
4. 你做作业不如他那样仔细。___________________________________________
5. 她唱歌不如你好。___________________________________________________
as + 原级 + as 和… 一样
not + as/so + 原级 + as 不如 …
My hair is as long as hers.
He runs as fast as his brother.
You do homework as carefully as he.
You don’t do homework as/so carefully as he.
She doesn’t sing as/so well as you.
1. 比较级 + than...(两者相比)
李明游泳比王浩快。__________________________________
他学习比以前努力。__________________________________
注意:修饰比较级(much/even/a little 可修饰)
李明游泳比王浩快一点。
_____________________________________________
他学习比以前努力得多。
_____________________________________________
Li Ming swims faster than Wang Hao.
He works harder than before.
Li Ming swims a little faster than Wang Hao.
He works much harder than before.
他跑得比班里其他任何学生都快。
_________________________________________________
= ________________________________________________
她写得比这里其他任何女孩都认真。
__________________________________________________
= ________________________________________________
2. 比任何其他的人或物都…(暗含最… 的意思)
比较级 + than any other + 名单
= 比较级 + than the other + 名复
He runs faster than any other student in his class.
He runs faster than the other students in his class.
She writes more carefully than any other girl here.
She writes more carefully than the other girls here.
汽车跑得越来越快。
____________________________________________
他做作业越来越认真。
____________________________________________
3. 越来越…
比较级 + and + 比较级
more and more + 多音节副词原级
The car runs faster and faster.
She does her homework more and more carefully.
你跑得越快,就会越累。
____________________________________________________
你学习越努力,学得就越好。
____________________________________________________
4. 越… 就越…
the + 比较级,the + 比较级
The more quickly you run, the more tired you will get.
The harder you work, the better you will learn.
李明在队里游得最快。
___________________________________________
他在工厂里工作最努力。
___________________________________________
1. 最…(3 者及其以上比较)
the + 最高级 ... of /in...
注意 1. 最高级前的 the 可以省略。
注意 2. 最高级一般用 of 或 in 来表示范围。
Li Ming swims the most quickly in the team.
He works the hardest in the factory.
比较级
最高级
规则变化
不规则变化
+er/est
去掉 e, +er/est
双写后,+er/est
y 变 i 后,+er/est
more/(the) most + 原型
good/well—better—best
bad/badly—worse—worst
many/much—more—most
little—less—least
年纪大的:old—older—oldest
较年长的:old—elder—eldest
距离远:far—farther—farthest
表程度:far—further—furthest
比...:比较级 + than
比较级 + than any other + 名单
= 比较级 + than the other + 名复
比较级 + and + 比较级
More and more + 多音节形容词原级
the+ 比较级,the+ 比较级
as + 原级 + as
not as/so + 原级 + as
the + 最高级 .... of / in
B
C
B
B
B
farther
harder
higher
(the) worst
terribly
get over 克服;从… 恢复
faster
farther
距离远
carefully
farthest
距离远,很多座位中选了最远的一个
best
worse
quickly

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