资源简介

(共25张PPT)
Unit 6 Natural wonders of the world
Lesson 3 Great rivers
Watch the video and think about how important the rivers are .
How many rivers do you know in china
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 ".
黄河
独特的形状
中国汉字
How many provinces does the Yellow River flow through
流经
1. How many provinces does the Yellow River flow through
黄河流经多少个省？
through prep. 从一端至另一端;穿过(强调从物体内部或中间穿过)
across prep. 从物体表面横向穿过
cross v. 从物体表面横向穿过
over prep. 指从物体上方越过
past prep. 指从物体旁边经过
e.g. The bird flew in through the window.这只鸟从窗户飞了进来。
The children ran across the grassland.
=The children cross the grassland.孩子们跑过草地.
He climbed over the wall.他翻过墙去。
I go past the bank on my way to school.我在上学的路上经过这家银行。
through prep. 以,凭借(表示方式);自始至终,从头到尾
e.g. Through the practice, children can have a deeper understanding of the text books.
通过实践,孩子们可以对课本有更深的理解。
e.g. He acted so well that people just couldn't stop laughing through the movie.
他演得如此好,以至于人们看电影时从头到尾笑个不停。
2. I'm trying to locate the Yellow River.我正在寻找黄河的位置。
locate v. 找出……的准确位置; 把……安置在
e.g. Rescue planes are trying to locate the missing sailors.
救援飞机正在努力查明失踪水手的下落。
They located their company in Beijing.他们把公司设在了北京。
be located in... 位于...
e.g. The business is located right in the centre of town.这家商店就在镇中心。
location n.地方;地点;位置
e.g. What is the exact location of the shop 那个商店的确切位置在哪里
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.
就在这里
1,问长度
2，问时间段
How often 问频率
How soon 多久以后
How far 多远距离
It’s important to sb...对某人重要
母亲河
right adv. 加强语气
The Yangtze River长江
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!
It is 6,300 kilometres long.
The Changjiang River is 836 kilometres longer than the Yellow River.
减
文化发展
mins 减（take 6 from 10）
plus / and / add 加
time / multipy 乘
divide 除
3. Let me check. 我来检查一下。
check v.& n. 检查
e.g. Before handing in your paper, check if your name and number are correct. 在交卷之前,检查一下你的姓名和号码是否正确。
Could you give the tyres a check 你能检查一下轮胎吗
check out (经检查)得到证实，获得证明
check out (of ... ) 结账离开(旅馆等)
check in (at...) (在旅馆、机场等)登记,报到
check over 仔细检查:核对
check for / on sth 检查/查看某物(是否安全/正确/状况良好)
check on sb / sth 调查/审查某人/某物
4. You′re quick with numbers，Li Meng! 李梦，你算数真快!
number n.数字；数量；数；号码
the number of ······的数量
a number of 许多
e.g. 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
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
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.
The Nile in Africa is the longest river in the world.
全世界
尼罗河
非洲
亚马逊河
南美洲
刚果河
……的发展
n.文明
adv.自始至终，各处，遍及
the Changjiang River
长江
6300 km
the Amazon River
亚马逊河
6440 km
the Nile
尼罗河
6670 km
long
longer
longest
The Amazon River is longer than the Changjiang 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
Grammar in use
Read the conversation, circle the words with “-er”, and underline the full sentences where they appear.
比较级和最高级 （Comparative and superlative）
形容词（Adjectives）
英语中的形容词有原级、比较级和最高级三种形式。
表示“比……更……”的概念时，用比较级；
表示“最……”的概念时，用最高级。
The Changjiang River is longer than it.
It is 836 kilometres longer than the Yellow River.
than
than
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。
形容词比较级和最高级的构成方法如下表：
构成方法 原级 比较级 最高级
单音节词一般在词尾加 -er 或 -est fast faster fastest
以 -e 结尾的单音节词，以 -ple 结尾的双音节词，只加 -r 或 -st large simple larger simpler largest
simplest
以一个辅音字母结尾的重读闭音节词，双写该字母后加 -er 或 -est big wet bigger wetter biggest
wettest
构成方法 原级 比较级 最高级
以“辅音字母 +y”结尾的词，变y 为 i 后，加 -er 或 -est lazy lucky lazier luckier laziest
luckiest
以-er或-ow结尾的少数双音节词，加 -er 或 -est clever narrow cleverer narrower cleverest
narrowest
其他双音节词或多音节词，在词前加 more 或 most useful important more useful more important most useful
most important
We cleaned the classroom more quickly by working together.
我们通过合作，更快地打扫了教室。
She checked her answers most carefully before handing in the exam.
她仔细核对了答案，然后交了试卷。
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
If we drive less, the air will be cleaner. 如果我们少开车，空气就会更清洁。
He lives farthest from school, so he wakes up earliest.
他住得离学校最远，所以起床时间也最晚。
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.
Read the sentences and pay attention to the parts in yellow.
Then fill in the blanks.
The Changjiang River is longer than it.
Is it the longest river in China
faster
wider
largest
hotter
A. are still lower B. the longest river C. the highest peak
D. the largest river E. the world's widest
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 ______. There are many other remarkable natural features and geographical wonders around the globe.
D
B
E
C
A
世界纪录
与……有关
n.方面
水量
on the one hand ... on the other hand ... 一方面…另一方面…
安赫尔瀑布
委内瑞拉
= speaking to 提及
珠穆朗玛峰
海拔
乔戈里峰
干城章嘉峰
非凡的；引人注目的
特色；特征
adj.地理学的
Practice
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

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