资源简介

(共41张PPT)
Unit 6 Natural wonders of
the world
Lesson 3 Great rivers
掌握长江、黄河等河流的英文表达及相关地理知识（长度、流经等 ）；熟悉形容词比较级（-er ）和最高级（-est ）的构成规则与用法，精准识别并运用比较级、最高级描述事物特征与比较关系。
能围绕河流话题，依据对话信息准确回答关于河流特征、长度比较等问题；在语境中正确运用形容词比较级、最高级完成句子填空，实现语法知识的语言输出，提升语言运用的准确性与熟练度。
能够运用所学河流知识、比较级和最高级语法，描述更多地理景观（如山脉、湖泊等 ）的特征及相互间的比较关系；自主收集世界地理景观世界纪录信息，用英语进行整理、分享与交流，拓展知识运用场景，提升综合语言运用与知识迁移创新能力。
Learning Goals
1
2
3
Read the conversation and answer the questions.
While-reading
Read the conversation and answer the questions.
I'm trying to locate the Yellow River. Can you help me
Sure, Li Meng. The Yellow River has a unique shape like the Chinese character "几".
A. What is unique about the shape of the Yellow River
The Yellow River’s shape is like
the Chinese character"几 ".
找出......的准确位置
独特的
形状
汉字
While-reading
Read the conversation and answer the questions.
Oh, I see it now! Right here! How long is it
It's 5,464 kilometres long. It is important to us as our “Mother River ”.
B. How long is the Yellow River
C. Which is the longest river in China
It is so long! Is it the longest river in China
No, it is the second longest. The Changjiang River is longer than it.
It's 5,464 kilometres long.
The Changjiang River.
最长的
更长的
Read the conversation and answer the questions.
How long is the Changjiang River
It is 6,300 kilometres long.
D. How long is the Yellow River
E. How much longer is the Changjiang River than the Yellow River
Let me check. 6,300 minus 5,464... It is 836 kilometres longer than the Yellow River.
You're quick with numbers, Li Meng! The Yellow River and the Changjiang River are very important in our cultural development.
They are great!
检查
减去
数字
文化的发展
It is 6,300 kilometres long.
The Changjiang River is 836 kilometres longer than the Yellow River.
Read the conversation and answer the questions.
Would you like to know about other great rivers around the world
F. Which is the longest river in the world
Yes, please!
Well, the Nile in Africa is the longest river in the world. There's also the Amazon River in South America, and the Congo River in Africa. These rivers were important for the development of ancient civilizations throughout history.
That's amazing! I would love to explore these rivers someday.
尼罗河
非洲
南美洲
亚马孙河
刚果河
文明
自始至终
The Nile in Africa is the longest river in the world.
Read the sentences and pay attention to the words in yellow.
Is it the longest river in China
The Changjiang River is longer than it.
It is 836 kilometres longer than the Yellow River.
Well, the Nile in Africa is the longest river in the world.
To compare two or more things, we use comparative and superlative adjectives or adverbs. We usually add -er and -est to words to make comparatives and superlatives.
比较级
最高级
比较
比较级和最高级
the Yangtze River
长江
6300 km
the Amazon River
亚马孙河
6440 km
the Nile
尼罗河
6670 km
long
longer
longest
The Amazon River is longer than the Yangtze River.
The Nile is longer than the Amazon River.
The Nile is the longest of all.
概念理解
比较级：_____者比较。
最高级：_____者或_____者以上比较。
两
三
三
比较级最高级规则变化
long
longer
longest
1. 一般直接加-er，-est。
2. 以不发音的e结尾加-r，-st。
3. 以重读闭音节结尾，
双写尾字母，再加-er，-est。
4. 以辅音字母加y结尾的，
变y为i再加-er，-est。
5.多音节和部分双音节词，
词前加 more，the most。
nice
nicer
nicest
big
bigger
biggest
heavy
heavier
heaviest
famous
more famous
most famous
river
scenery
lake
snow
mountain
比较级最高级不规则变化
原级 比较级 最高级
good / well
many / much
bad / badly
little (少)
old
far
better
best
more
most
worse
worst
less
least
older/elder
oldest/eldest
farther/further
farthest/furthest
比较级的用法
形容词或副词的比较级+than
The Changjiang River is longer than it.长江比它长。
Bill runs faster than any other boy in his class.比尔跑得比班上其他任何男孩都快。
“比较级+and+比较级(单音节词和部分双音节词)”或“more and more+原级(多音节词和部分双音节词)”表示“越来越……”。
Summer is coming. It's getting hotter and hotter.夏天就要来了。天越来越热了。
“the +比较级...，the+比较级..”表示“越……,就越……”。
The more you read, the more you know.你阅读得越多,知道的就越多。
最高级的用法
(the+)最高级(+名词)+in/of 短语， 意为“……中最……的”。
I think spring is the best time of a year. 我认为春天是一年中最好的时节。
Tom works (the) hardest in Class3. 在三班汤姆学习最努力。。
one of the +形容词最高级+可数名词复数+in/of 短语，意为“……中最……的……之一”。 Hangzhou is one of the most beautiful cities in the world.
杭州是世界上最美的城市之一。
the +序数词+形容词最高级+可数名词单数+in/of 短语, 意为“在…中是第几……的……” As we all know, the Yellow River is the second longest river in China.
众所周知,黄河是中国第二长河。。
写出下列单词的比较级和最高级
1.big __________ __________ 2. boring __________ __________
3. busy __________ __________ 4. difficult __________ __________
5. easy __________ __________ 6. fat __________ __________
7.fine __________ __________ 8. good __________ __________
9. great__________ __________ 10. happy __________ __________
11. healthy__________ __________ 12. interesting__________ __________
13. old __________ __________ 14. relaxing __________ __________
15. short__________ __________ 16. small __________ __________
17. tidy __________ __________ 18. careful __________ __________
19. well __________ __________ 20. little __________ __________
bigger biggest
more boring most boring
busier busiest
more difficult most difficult
easier easiest
fatter fattest
finer finest
better best
greater greatest
happier happiest
healthier healthiest
more interesting most interesting
older/elder oldest/eldest
more relaxing most relaxing
shorter shortest
smaller smallest
tidier tidiest
more careful most careful
better best
less least
Practice
用所给词的比较级或最高级填空
A Bill runs __________ (fast) than any other boy in his class.
B This river is three metres __________ (wide) than that one.
C Hainan Island is the second __________(large) island in China.
D The weather in Chongqing is __________(hot) than that in Beijing.
E Last summer, my family and I visited the beach. It was one of the __________(hot) days of the year, but the water was much __________(cool) than we expected. The waves were ___________(big) than usual, and my brother thought they were the _____________(exciting) part of the trip. At the end of the day , we all agreed that the beach was the____________(relaxing) place to spend a summer day.
faster
faster
largest
hotter
hottest
cooler
bigger
most exciting
most relaxing
Practice
Read and complete the passage.
A.still lower B. the longest river C.the highest peak
D.the largest river E. the world's tallest
Do you know more world records related to landscapes The Amazon River is______ in terms of water volume. On the other hand, the Nile is ______ in the world. Angel Falls in Venezuela holds the record for ______. It has a height of 979 metres and a width of around 150 metres. When it comes to mountains, Mount Qomolangma stands tall as ______in the world. It is 8,848.86 metres above sea level. Other famous mountains such as K2 and Kanchenjunga come close but are ______. There are many other remarkable natural features and geographical wonders around the globe.
D
B
E
C
与......有关
就......而言；在......方面
总量
另一方面
A
保持着......记录
安赫尔瀑布
委内瑞拉
当涉及......时
乔戈里峰
干城章嘉峰
显著的 自然特征 地理奇观
Do you want to know about more landscapes in the world Find more information and share it with your partner.
我校正在举办“小小环球旅行家”主题活动，其中“世界自然景观推介官”选拔赛是重要环节。作为参赛选手，同学们需要化身“推介官”，从全球范围内挑选自己最感兴趣的自然景观（比如喜马拉雅山脉、亚马孙雨林、贝加尔湖等），通过查阅资料了解它们的独特之处。
在分享时，要重点用英语比较级和最高级向班级同学“推介”这些景观——比如“为什么它是‘最壮观’的？”“它比另一处景观‘更神秘’在哪里？”，让大家通过你的描述，仿佛身临其境感受自然之美。最终，表现优秀的“推介官”还会获得班级颁发的“环球探索之星”证书哦！
Examples:
Hello everyone! I’d like to share the Amazon River. It is longer than the Yangtze River. Many people say it’s the most important river for wildlife.
let’s talk about Mount Fuji. It is one of the most beautiful mountains in Japan. It’s much shorter than Mount Everest, but its shape is more special.
Show time.
Evaluation(评价)
Content 内容选择 所选景观信息准确，特征描述具体； 信息基本正确，特征描述较简单 信息有误或过于简略
Use of comparatives/ superlatives 比较级/最高级运用 正确使用3处及以上比较级/最高级，句式有变化； 正确使用1-2处，偶有小错； 错误多或未使用
Oral Expression 口语表达 清晰流畅，表达自然； 能听懂，偶有停顿； 模糊卡顿，难理解
世界自然景观推介官”选拔赛
Words
Phrases
locate /l 'ke t/ v. 找出……的准确位置
check /t ek/ v. & n. 检查
minus /'ma n s/ prep. 减；减去；零下
number /'n mb (r)/ n. 数字；数量
civilization /,s v la 'ze n/ n. 文明
throughout /θru 'a t/
prep.& adv. 自始至终
Chinese character 汉字
be important to 对......重要
cultural development 文化的发展
be related to 与......有关
in terms of 就......而言
When it comes to 当涉及......时
On the other hand 另一方面
Grammar
一、比较级和最高级的构成
规则变化
1. 一般直接加-er，-est。
2. 以不发音的e结尾加-r，-st。
3. 以重读闭音节结尾，双写尾字母，再加-er，-est。4. 以辅音字母加y结尾的，变y为i再加-er，-est。
5. 多音节和部分双音节词，词前加 more，the most。
不规则变化
二、比较级和最高级的用法
比较级的用法
1. 形容词或副词的比较级+than
2. 比较级+and+比较级 越来越……
3. the +比较级...，the+比较级... 越……,就越……
最高级的用法
1.(the+)最高级(+名词)+in/of 短语，……中最……的
2. one of the +最高级+可数名词复数，……中最……的……
3. the +序数词+最高级 在…中是第几最……的……
比较级和最高级
Summary
I′m trying to locate the Yellow River.
我正在寻找黄河的位置。
locate /l ke t/ [动词] 找出···的准确位置；把···安置在
I need to locate my lost phone.
我需要定位我丢失的手机。
Language points
[拓展]
location [名词] 位置
I have to find a convenient location for the shelves.
我得找一个合适的位置放这些书架。
2. It is so long! 它真长啊！
so [副词] 如此；这么；那么；非常；很
so 作副词时，用于修饰形容词或副词，表示程度、大小或数量。
其常见结构如下：
① so＋adj./adv.
I’m so glad to receive your letter. 收到你的信我非常高兴。
② so＋adj.＋a/an＋可数名词单数
He wears so funny a mask. 他戴着一个如此滑稽的面具。
④ so＋much/little(少)＋不可数名词
There is so much water on the table! 桌子上有那么多水！
③ so＋many/few＋可数名词复数
There are so many students in the library.
图书馆里有那么多学生。
[拓展]
① so 作副词，还可意为“这样”，用来代替刚说过的事物、整个句子或某一情况的全部，在口语中常与 think、hope、say、be afraid 等词(组) 连用，使说话人的语气显得委婉、客气。
— I think you′ll win in the competition.
我认为你在这次比赛中会获胜。
—I hope so. 我希望是这样。
② so 作连词，意为“因此；所以”；表示因果关系。
He studied hard, so he got good grades in the final exam.
他学习很努力，所以期末考试取得了好成绩。
3. Let me check. 让我查一下。
check /t ek/ ① [动词] 检查
check 指检查某事物是否正确、安全、满意或处于良好的状态，也可指检验以测试某事物的准确度或真假。
I will check that he does not cheat me.
我将去核实一下看他是否骗我。
check ② [名词] 检查
Could you give the tyres a check
你能检查一下轮胎吗？
4. You′re quick with numbers，Li Meng! 李梦，你算数真快!
number / n mb (r)/ [名词]数字；数量；数；号码
the number of ······的数量
a number of 许多
There are sixteen numbers here. 这里有16个数字。
What′s your telephone number, please
请问你的电话号码是多少
[辨析]
the number of 与 a number of
the number of 后加复数名词，作主语时谓语动词要用单数形式
a number of 后加复数名词，作主语时谓语动词要用复数形式，number 前可用 small、large 等来修饰
5. Would you like to know about other great rivers around the world 你想了解世界上其他的大江大河吗
know about 了解/知道有关······的情况
Do you know about the history of Australia？
你了解澳大利亚的历史吗
[辨析]
know about，know of 与 know
know about “了解/知道有关······的情况”，指只是大体上知道有关情况，并不是很熟悉、很清楚
know of “知道有······；听说过······”，指知道或听说过某人或某物的一些情况，但具体细节并不清楚，侧重间接性。有时可以与 know about 换用
know “知道；了解；认识；熟悉；懂得”，侧重直接性
5. Would you like to know about other great rivers around the world 你想了解世界上其他的大江大河吗
around the world 全世界
around the world 在句末作地点状语，也可作后置定语修饰名词，相当于 all over the world。
The tea is traded around the world.
茶叶销往世界各地。
6. There′s also the Amazon River in South America，and the Congo River in Africa. 还有南美洲的亚马孙河、非洲的刚果河。
also [副词] 也
Lucy likes the song, and Tom also likes it.
露西喜欢这首歌，汤姆也喜欢它。
[辨析]
also，too 与 either
also 常用于肯定句句中，位于连系动词 be、助动词或情态动词之后，实义动词之前
too 常用于肯定句句末，通常用逗号与前面的内容隔开
either 常用于否定句句末，通常用逗号与前面的内容隔开
7. These rivers were important for the development of ancient civilizations throughout history. 纵观历史，这些河流对古代文明的发展具有重要意义。
ancient [形容词] 古代的；古老的
其前不定冠词要用 an。
It is an ancient oak tree. 这是一棵古橡树。
[辨析]
ancient，antique 与 old
ancient 指很久以前发生或存在的事物
antique 指已经很古老或颇有古风的事物，一般都具有较高的价值
old 指长期以来一直存在着的事物，与 times连用指古代，与 days 连用指从前或旧旧社会
7. These rivers were important for the development of ancient civilizations throughout history. 纵观历史，这些河流对古代文明的发展具有重要意义。
throughout / θru: a t/ ①[介词]自始至终；各处；遍及
throughout the world 全世界
We have friends throughout the world.
我们的朋友遍及天下。
throughout ② [副词] 自始至终；各处；遍及
The ceremony lasted two hours and we had to stand throughout.
仪式进行了两个小时，我们自始至终都得站着。
8. When it comes to mountains，Mount Qomolangma stands tall as the highest peak in the world. 当谈到山脉时，珠穆朗玛峰作为最高峰魏然屹立于世。
when it comes to... 当提到/谈到/谈及······时；就······而论
其中 to 为介词，后可接名词、代词或动词-ing 形式作宾语。
When it comes to fishing, John is an expert.
谈及钓鱼，约翰是个专家。
1.You should_________(检查) your answers carefully to make sure they are all correct.
2.Do you think“4”is an unlucky_________(数字)
3.The movie Ne Zha2 has become popular t__________ the world.
4.The small school l_________ in the countryside closed down five years ago.
5.In the eyes of the teacher, each student is u_________ and different.
一、根据句意及汉语或首字母提示填写单词
check
number
hroughout
ocated
nique
1. Mike had a cold last week. But he feels much ________ (good) now.
2. Nothing is_____________(enjoyable)than tennis, so it is my favourite sport.
3. The_________( little) junk food you eat, the healthier you will be.
4. Lily's parents have four daughters, and she is the__________(young) child.
5. Jack thinks Beijing roast duck is one of the_______________( delicious) dishes
in China.
二、用括号内所给单词的适当形式填空
better
more enjoyable
less
youngest
most delicious
Practice
1.请尽量大声地讲话并且确保大厅里所有的人都可以听到你。
Please_____ ____ ______loudly and make sure all the people in the hall can hear you.
2.中国有960多万平方千米的区域。它是世界上面积第三大的国家。
China has an area of over 9,600,000square kilometres. It is_____ _____ _____ _____ in area in the world.
3.这次考试对我们来说是重要的,因此我们必须认真对待它。
The exam _____ _______ ______ us,so we must take it seriously.
4.我每天读报纸来了解国内外的新闻。
I read newspapers every day to ________ ________ news at home and abroad.
5.莉莉愿意和她的新同学交朋友。
Lily_______ _______ _______ make friends with her new classmates.
三、根据汉语意思完成句子(每空一词)
try to speak
the third largest country
is important to
learn about
would love to

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