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(共39张PPT)
Amazing nature
Unit 5
After completing the unit, you will be able to:
use words and expressions in the unit to talk about natural wonders.
use comparatives and superlatives to describe natural places.
explain the importance of the natural world.
思维品质
学习能力
文化意识
语言能力
教学目标
学生能够用本课时的核心词汇和句型，能够正确使用形容词比较级和最高级对对事物进行对比和描述。
通过教学活动的开展，能锻炼学生的逻辑思维能力；引导学生主动发现语法规律，提升逻辑思维能力。
运用对比、归纳等方法自主学习形容词比较级和最高级的语法知识，培养独立思考和自主探究的学习能力。
通过本节课的学习，学生能够了解祖国的大好河山，了解自然的雄伟壮丽，拓展视野，增强自豪感。
学生能够发现并总结比较级与最高级的语法规则；能够正确使用本课时语法完成练习。
学生能够在活动中，用所给句式和形容词、副词的原级、比较级、最高级描述自然风景。
01
02
教学重难点
01
Warming up
Match the words with the pictures of the natural wonders.
1
Do you know the difference between river lake and sea
river：指河流，是陆地表面上经常或间歇有水流动的线形天然水道。河水通常是淡水，且有一定的流向，一般从高处流向低处，最终可能注入湖泊、海洋或其他河流。
lake：意为湖泊，是被陆地环绕的大片水域。湖水可以是淡水，也可以是咸水，通常没有明显的流动，水相对较为静止。
sea：表示海、海洋，是地球上广大连续的咸水水域的总称。海洋面积广阔，水深度较大，与陆地相连，是地球生态系统的重要组成部分。
Yangtze River
West Lake
Bohai Sea
PREDICT
Look at the title and subtitle, predict what problems these natural wonders meet.
The Dead Sea could die!
Rainforest - forest ≠ rain
If Frozen turns into Waterworld…
Natural wonders crying aloud for help
02
Reading
Read the passage.
What problem do the different natural wonders share
2
The different natural wonders are facing environmental problems, and they will disappear if people don’t protect them.
The Dead Sea could die!
Rainforest - forest ≠ rain
If Frozen turns into Waterworld…
Natural wonders crying aloud for help
The Dead Sea
The Dead Sea contains a high concentration of salt and you can easily float on the water. The water is very clear, but there are no fish living in it. It is also a great place for tourists to relax and enjoy the beauty.
What famous natural landscapes do you know
Madgascar Rainforest
Madagascar Rainforest is located on the island of Madagascar in the Indian Ocean. It has a unique ecosystem, and many plant and animal species found here are exclusive to the island, such as lemurs and various special plants. It plays a vital role in global biodiversity conservation, especially as a habitat for endemic island species.
The Glacier National Park of America
The Glacier National Park in America is located on the border of Montana and Canada. Established in 1910, it has about 50 glaciers. The park is a paradise for rare species, with various plants and animals. Its Going-to-the-Sun Road offers beautiful views of mountains and lakes.
Complete the table with the words and expressions from the passage.
3
What are they
The Dead Sea is not a sea but a 1__________. It is saltier than any sea.
lake
The 2 __________ of Madagascar is the only home for many plants and animals.
The Glacier National Park in America is a land full of 3 __________.
rainforest
ice and snow
Complete the table with the words and expressions from the passage.
3
What problems do they face
Rivers flow into it. But now people 4 __________ too much
take
People are cutting down trees for wood and 5__________ space for farming.
6 ____________ years ago, there were about 150 glaciers. Now there are around 25.
to make
Two hundred
Complete the table with the words and expressions from the passage.
3
What should people do
Take less water.
Stop cutting down trees.
Stop climate change.
Answer the questions.
1 Who is speaking in each paragraph
____________________________________________________________
____________________________________________________________
________________________________________________________________________________________________________________________
4
In the first paragraph, the Dead Sea is speaking.
In the second paragraph, the rainforest of Madagascar is speaking.
In the third paragraph, a glacier at the Glacier National Park in America is speaking.
Answer the questions.
2 Are the natural wonders really crying aloud
____________________________________________________________
____________________________________________________________
3 What feeling does this way of writing give you ____________________________________________________________
____________________________________________________________
4
No, they aren’t.
The passage uses personification to show the serious situation.
Possible answer: It makes me feel as if the natural wonders are talking to me. I feel sad for them and want to help them.
Think and share
1. What is the world like in Frozen and Waterworld Why does the writer mention the two films
In the film Frozen, the world is full of ice and snow. It is a cold, white world. In the film Waterworld, the world is covered with water.
The writer mentions the two films to show the serious problem of climate change.
Think and share
2. Why is it important to stop these natural wonders from disappearing
It’s important because natural wonders are beautiful. They give us hope and seeing them makes us happy. Also, they are home to many plants and animals. The life cannot live without lakes, rainforests and glaciers.
03
Writing
Write a short paragraph another natural wonder crying for help.
5
Think of some natural wonders with problems. Choose one to write about. You can consider the following:
Step 1
the North Pole
the South Pole
Victoria Falls
the Amazon River
the Great Barrier Reef
5
Which natural wonder do you choose
What is it like
I choose the Amazon River.
It’s a very big and important river, full of life.
Write a short paragraph another natural wonder crying for help.
Step 2
5
What problem(s) does it face
What should people do
It faces a problem of pollution from factories and people. This makes the water dirty and can harm the animals and plants.
People should stop throwing waste into the river and reduce industrial pollution. They should also try to clean up the river and protect the environment.
Write a short paragraph another natural wonder crying for help.
Step 2
5
Step 3
Write the short paragraph in the first person. Use the boxes to help you.
Step 4
Check. Did you: include all the information in the boxes
use the words and expressions from the reading passage
point out the importance of protecting nature
Step 5
Share your paragraph with the class.
Write a short paragraph another natural wonder crying for help.
I, the Amazon River, am in trouble. I am a big river, full of life. In fact, I’m one of the largest rivers in the world. I run through the Amazon Rainforest. I give water to it. But now, I am facing problems like pollution and climate change.
SAMPLE
I’m getting dirtier and the amazing life around me is dying out. It will change the balance in nature and harm all the life, including you, humans. Hear my cries, and help me now! You should stop throwing rubbish in the water and help take care of the forest.
SAMPLE
04
Grammar
1
suggest
v. 建议，提议；表明，暗示
suggest sth. to sb.：向某人建议某事
She suggested a new idea to her boss. 她向老板提出了一个新想法。
suggest doing sth.：建议做某事
He suggested visiting the museum this weekend. 他建议这个周末去参观博物馆。
suggest + (that) 从句：建议……；表明……
当表示 “建议” 时，从句中的谓语动词常用 “(should)+ 动词原形” 的虚拟语气形式；当表示 “表明，暗示” 时，从句用陈述语气
I suggest that you (should) study harder. 我建议你更努力地学习。
2
or
连词
表示选择：意为 “或者；还是”
Do you want tea or coffee 你想要茶还是咖啡？
表示否定的并列关系：意为 “也不”
I don't like apples or bananas. 我不喜欢苹果也不喜欢香蕉。
表示否则；要不然：
Hurry up, or you'll be late for school. 快点，否则你上学要迟到了。
3
cut down
砍倒；削减；减少
They cut down the old tree in the yard.
他们砍倒了院子里的那棵老树。
We should cut down our daily expenses.
我们应该削减日常开支。
The doctor told him to cut down on smoking.
医生让他减少吸烟。
4
stop...（from） doing sth
stop...（from） doing sth 阻止......做某事
The heavy rain stopped us (from) going to the park.
大雨阻止了我们去公园。
We should stop him (from) making the same mistake again.
我们应该阻止他再犯同样的错误。
The parents stop their child (from) playing video games for too long.
父母阻止他们的孩子长时间玩电子游戏。
05
Exercises
1. The s__________(表面) of the table is flat.
2. We are surprised to see a s________(蛇) in the garden.
3. Trees are useful. They give us fruit and w_______(木头).
4. It is helpful to read English a________(出声地) in the morning.
5. Teachers can check the students' l________(水平) on the Internet.
Exercise
urface　
nake　
ood　
loud　
evel
1. 河流通常流入更大的河流或海洋。
Rivers generally ____________ a larger river or the sea.
2. 我们学校的学生总数正在逐年增长。
The total number of students in our school is growing __________________ .
3. 我有很多爱好，例如唱歌、跳舞和游泳。
I have many hobbies, ____________________ singing, dancing and swimming.
4. 医生建议多吃蔬菜少吃肉。
_____________________________________________________
Exercise
flow into
year by year
such as/for example
Doctors suggest eating more vegetables and less meat.
06
Summary
Grammar
suggest、or、cut down、stop...（from） doing sth
Reading
Natural wonders crying aloud for help
Write a short paragraph another natural wonder crying for help.
Writing
07
Homework
Homework
Review the keywords and sentence structures in today’s lesson.
2. Finish your composition.
SEE YOU NEXT CLASS!

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