资源简介

(共30张PPT)
Lesson 3
Great rivers自主学习
Unit 6 Natural wonders of the world
1 Read the questions and give your answers.
A How many large rivers do you know in China What are they
B How many provinces does the Yellow River flow through
I know there is the Yangtze River, the Yellow River, the Pearl
River and other large rivers in China.
The Yellow River flows through 9 provinces.
2 Read the conversation and answer thequestions.
Li Meng: I'm trying to locate the Yellow River. Can you help me, Brother
Li Ming: Sure, Li Meng. The Yellow River has a unique shape like the Chinese character ” 几”.
Li Meng: Oh, I see it now! Right here! How long is it
介词短语作后置定语。
Li Ming: It‘s 5,464 kilometres long. It is important to us as our “Mother River”.
Li Meng: It is so long! Is it the longest river in China
Li Ming: No, it is the second longest. The Changjiang River is longer than it.
Li Meng: How long is the Changjiang River
Li Ming: It is 6,300 kilometres long.
Li Meng: Let me check 6,300 minus 5,464... It is 836 kilometres longer than the Yellow River.
Li Ming: You're quick with numbers, Li Meng! The Yellow River and the Changjiang River are very important in our cultural development.
Li Meng: They are great!
Li Ming: Would you like to know about other great rivers around the world
两者在数量、长度等方面的比较结构:
It is + 数词+ 形容词比 较级+ than...
Li Meng: Yes, please!
Li Ming: 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.
Li Meng: That's amazing! I would love to explore these rivers someday.
就近原则，紧跟其后的是单数名词，
所以用is
A What is unique about the shape of the Yellow River
B How much longer is the Changjiang River than the Yellow River
The unique shape of the Yellow River is like the Chinese
character“几”.
It is 836 kilometres longer than the Yellow River.
从教材习题2中学中考解题策略
对比分析法
在涉及河流长度比较等问题时，要将比较对象的长度数据描述进行认真分析。如比较长江和黄河的长度，从“It is 6,300 kilometres long.”和“It is 836 kilometres longer than the Yellow River.”中对比可轻松作答。
3 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
To compare two or more things, we use comparative and superlative adjectives. We usually add -er and -est to words to make comparatives and superlatives.
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.
faster
wider
largest
hotter
4 Read and complete the passage.
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.
A. are still lower B. the longest river C. the highest peak
D. the largest river E. the world’s widest
D
B
E
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.
A. are still lower B. the longest river C. the highest peak
D. the largest river E. the world’s widest
C
A
5 Do you want to know about more landscapes in the world Find more information and share it with your partner.
探究一 核心单词
Unit 6 Natural wonders of the world
1 locate /l 'ke t/ v. 找出……的准确位置；把……安置在
观察· We are trying to locate the small village.
我们正试图找出小村庄的准确位置。
· Where shall we locate our new office
我们的新办公室将安置在什么地方？
· The office is to be moved to a new location.
该办事处将迁往新址。
locate 作动词，后接地点名词。
locate 对应的名词为location，其意思为“位置”。
英语中有许多动词变名词时是在词尾加-ion。类似的词有：act→action（行动） pollute→pollution（污染）operate→operation（手术） collect→collection（收集物） educate→education（教育）
2 check /t ek/ v.& n. 检查 （教材P76）
观察· Do look out for spelling mistakes when you check your homework. 你检查作业时一定要注意拼写错误。
· They made a check of their equipment.
他们对他们的设备进行了一次检查。
· We checked our luggage at the airport. 我们在机场托运了行李。
· He wrote a check for 10,000 dollars.
他开了一张10000 美元的支票。
· Where can I check in 我能在哪儿办理登机手续？
check 作“检查”讲，为及物动词，后接检查的对象。
check 还可以作名词，为可数名词。make a check 检查。
check 还可以作动词，意思为“寄放；托运”。
check 还可以作名词，意为“支票”，为可数名词。
check in 登记；报到
3 number /'n mb (r)/ n. 数字；数量（教材P76）
观察· The number of the students in our class is 40.
我们班学生的数量是40。
· What’s your telephone number 你的电话号码是多少？
· A number of students are interested in smart phones.
许多学生对智能手机感兴趣。
· The crowd numbered more than a thousand.
聚集的人群共计一千多人。
number 作“数量”讲，常用于搭配：the number of... ……的数量。
number 还有“号码”之意，telephone number 电话号码。
a number of“许多；大量”，后接复数名词。
number 还可以作动词，意为“总计；共计”。
4 civilization /s v la 'ze n/ n. 文明（教材P76）
观察· Science is the bridge to civilization.
科学是通向文明的桥梁。
· Chinese civilization is one of the oldest in the world.
中华文明是世界上最古老的文明之一。
· School education helps to civilize the people .
学校教育有助于人们文明化。
civilization 作“文明”讲，为不可数名词Chinese civilization 中华文明。其动词形式为civilize，意思是“使文明”。
civilization 由动词civilize 去e 加-ation 构成。类似构成的词还有：
invite → invitation（邀请）
prepare → preparation（准备）
organize → organization（组织）
探究二 核心短语
Unit 6 Natural wonders of the world
1 how long 多长（教材P76）
观察· —How long is the Great Wall 长城有多长？
— It’s more than 10,000 li long. 它长达10000 多里
·— How long may I keep the book 我可以借这本书多长时间？
—For two weeks. 两周。
how long 意为“多长”，询问物体的长度。
how long 还有“多久；多长时间”的意思，询问动作或状态的持续时间。
由how 构成的疑问短语有：how old（几岁）；how far（多远）；how often（多久一次）；how many times（多少次）等。
2 the development of... ……的发展（教材P76）
观察· The development of technology has changed our lives greatly. 科技的发展极大地改变了我们的生活。
· The development of the printing technique promoted the spread of education. 印刷术的发展促进了教育的普及。
· With the development of society, people’s lives have improved a lot. 随着社会的发展，人们的生活有了很大的改善。
· Now our country is developing rapidly.
现在我们的国家正在快速发展。
the development of... 意为“……的发展”，of 后接名词、动名词等。
with the development of... 意为“随着……的发展”。
development 的动词形式为develop，其意思为“发展”。
探究三 核心句式
Unit 6 Natural wonders of the world
Would you like to know about other great rivers around the world 你想了解世界上的其他大河吗？（教材P76）
分析结构 这句话是一个简单句。主语是you，谓语是would like，宾语是to know about other great rivers around the world，这里是动词不定式短语作宾语。动词不定式短语中的other great rivers around the world 作know about 的宾语。around the world 为介词短语，修饰rivers。
· Would you like to go on a trip to Qingdao 你想去青岛旅行吗？
· I want to know more about Chinese culture.
我想更多地了解中国文化。
would like 意为“想要”，没有人称和数的变化，后接名词、代词或动词不定式。
含有would like 的句子变一般疑问句时要把would 提前，放于句首。
know about 的意思为“了解”。
介词短语作定语修饰名词时，要放在它所修饰的名词的后面。

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