文档内容
Unit 4 The Wonders of Nature
课时 6 Section B 3a-3c 分层作业
核心知识速记 01 基础达标 02 能力提升 03 拓展培优 0 4 思维进阶
词汇
1. underwater /ˌʌndəˈwɔːtə(r)/ adj. 水下的; adv. 在水下 2. northeastern /ˌnɔːθˈiːstən/ adj. 东北
方向的
3. coast /kəʊst/ n. 海岸；海滨 4. coral /ˈkɒrəl/ n. 珊瑚；珊瑚虫
5. reef /riːf/ n. 礁；礁脉 6. include /ɪnˈkluːd/ v. 包含；包括
7. sand /sænd/ n. 沙子 8. alive /əˈlaɪv/ adj. 活着；在世；有活力
9. structure /ˈstrʌktʃə(r)/ n. 结构（体）,体系 10. school /skuːl/ n. （鱼、鲸、海豚等的）群
11. snorkel /ˈsnɔːkəl/ v. 使用呼吸管潜泳 n. 呼吸管 12. lifetime /ˈlaɪftaɪm/ n. 一生；终身
13. persuasive /pəˈsweɪsɪv/ adj. 有说服力的；劝说的 14.wildlife /ˈwaɪldlaɪf/ n. 野生动植
物
短语
1. take up an area of 占地……面积 2. square kilometres 平方公里
3. white sand beaches 白色沙滩 4. the largest living structure 最大的生命结构体
5. clear water 清澈的水 6. schools of colourful fish 成群的彩色鱼
7. the dream of a lifetime 一生的梦想 8. salt lake 咸水湖
9. photograph wildlife 拍摄野生动物 10. ride a bike or horse 骑自行车或骑马
11. be located on 位于…… 12. northeastern coast 东北海岸
13. coral reef 珊瑚礁 14. natural wonder 自然奇观
15. write an advertisement 写广告 16. as persuasive as
possible 尽可能有说服力
17. one of the most amazing places 最令人惊叹的地方之一
句型
1. 描述地理位置
Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit.
大堡礁位于澳大利亚东北海岸，是最令人惊叹的旅游胜地之一。Qinghai Lake is a salt lake in Qinghai Province, China.青海湖是中国青海省的一个咸水湖。
2. 描述规模与特征
It is the biggest coral reef in the world.它是世界上最大的珊瑚礁。
It takes up an area of 345,000 square kilometres and includes over 900 islands and white sand beaches.
它占地34.5万平方公里，包括900多个岛屿和白色沙滩。
The Great Barrier Reef is also alive!大堡礁还是充满生机的！
It is the largest lake in China (4,340 km²).它是中国最大的湖泊（4340平方公里）。
3. 描述活动与体验
Here, you can swim, dive, or snorkel in the clear water and see coral, plants, and schools of colourful fish.
在这里，你可以在清澈的海水中游泳、潜水或浮潜，看到珊瑚、植物和成群的彩色鱼。
If you dive deeper, you might even see large fish, turtles, and sharks.
如果你潜得更深，甚至可能会看到大鱼、海龟和鲨鱼。
If you visit Qinghai Lake, you can photograph wildlife, visit islands, and ride a bike or horse.
如果你游览青海湖，你可以拍摄野生动物、参观岛屿、骑自行车或骑马。
4. 表达情感与推荐
For people who love the ocean, visiting the Great Barrier Reef is the dream of a lifetime!
对于热爱海洋的人来说，游览大堡礁是一生的梦想！
Describe it and explain why people should visit it.
描述它并解释为什么人们应该去游览。
Try to make your advertisement as persuasive as possible.
尽量让你的广告具有说服力。
一、单词默写。
1. ____________ [ˌʌndəˈwɔːtə(r)] adj. 水下的； 2. ____________ [ˌnɔːθˈiːstən] adj. 东北的；东北方向的
3. ____________ [kəʊst] n. 海岸；海滨 4. ____________ [ˈkɒrəl] n. 珊瑚
5. ____________ [riːf] n. 礁；礁脉 6. ____________ [ɪnˈkluːd] v. 包含；包括
7. ____________ [sænd] n. 沙子 8. ____________ [əˈlaɪv] adj. 活着的；有活力的
9. ____________ [ˈstrʌktʃə(r)] n. 结构（体）；构造 10. ____________ [ˈsnɔːkəl] v. 浮潜 n. 呼吸管
11. ____________ [skuːl] n. （鱼）群 12. ____________ [ˈlaɪftaɪm] n. 一生；终身 14.
13. ____________ [ˈwaɪldlaɪf] n. 野生动植物 14. ____________ [pəˈsweɪsɪv] adj. 有说服力的
二、词组默写。
1. 占地……面积 ____________________ 2. 平方公里 ____________________
3. 白色沙滩 ____________________ 4. 最大的生命结构体 ____________________5. 清澈的水 ____________________ 6. 成群的彩色鱼 ____________________
7. 一生的梦想 ____________________ 8. 咸水湖 ____________________
9. 拍摄野生动物 ____________________ 10. 骑自行车或骑马 ____________________
11. 位于…… ____________________ 12. 东北海岸 ____________________
13. 珊瑚礁 ____________________ 14. 自然奇观 ____________________
15. 写广告 ____________________ 16. 尽可能有说服力 ____________________
17. 最令人惊叹的地方之一 ____________________
三、根据要求完成句子
1. 大堡礁位于澳大利亚东北海岸。
The Great Barrier Reef is ____________ on the northeastern ____________ of Australia.
2. 它是世界上最大的珊瑚礁。
It is the ____________ coral reef in the world.
3. 它占地34.5万平方公里，包括900多个岛屿和白色沙滩。
It ____________ ____________ an area of 345,000 square kilometres and ____________ over 900 islands and
white sand beaches.
4. 大堡礁还是充满生机的！
The Great Barrier Reef is also ____________!
5. 在这里，你可以在清澈的海水中游泳、潜水或浮潜。
Here, you can swim, dive, or ____________ in the clear water.
6. 如果你潜得更深，甚至可能会看到大鱼、海龟和鲨鱼。
If you dive ____________, you might even see large fish, ____________, and sharks.
7. 对于热爱海洋的人来说，游览大堡礁是一生的梦想！
For people who love the ocean, visiting the Great Barrier Reef is the ____________ of a ____________!
8. 青海湖是中国青海省的一个咸水湖。
Qinghai Lake is a ____________ lake in Qinghai Province, China.
9. 它是中国最大的湖泊，面积4340平方公里。
It is the ____________ lake in China, 4,340 km² ____________ ____________.
10. 如果你游览青海湖，你可以拍摄野生动物、参观岛屿、骑自行车或骑马。
If you visit Qinghai Lake, you can ____________ wildlife, visit islands, and ____________ a bike or horse.
11. 描述它并解释为什么人们应该去游览。
____________ it and explain why people should ____________ it.
12. 尽量让你的广告具有说服力。
Try to make your advertisement as ____________ as possible.
四、请根据所给的首字母写出单词，使句子意思完整正确。
1. The Great Barrier Reef is l______ on the northeastern coast of Australia.
2. It is the b______ coral reef in the world, taking up 345,000 square kilometres.
3. The reef i______ over 900 islands and white sand beaches.4. You can swim, dive, or s______ in the clear water to see colourful fish.
5. If you dive d______, you might even see large fish, turtles, and sharks.
6. For ocean lovers, visiting the reef is the dream of a l______.
7. Qinghai Lake is a s______ lake in Qinghai Province, China.
8. If you visit Qinghai Lake, you can p______ wildlife and ride a bike or horse.
五 、同义句转换。
1. The Great Barrier Reef is located on the northeastern coast of Australia.
→ The Great Barrier Reef ______ ______ the northeastern coast of Australia.
2. It is the biggest coral reef in the world.
→ It is ______ than ______ ______ coral reef in the world.
3. It takes up an area of 345,000 square kilometres.
→ It ______ 345,000 square kilometres ______ ______.
4. You can see schools of colourful fish in the clear water.
→ Schools of colourful fish ______ ______ ______ in the clear water.
六 、用括号内所给词的适当形式填空。
1. The Great Barrier Reef is one of the most ______ (amaze) places to visit.
2. It ______ (take) up an area of 345,000 square kilometres.
3. The reef includes over 900 islands and white ______ (sand) beaches.
4. You can see schools of ______ (colour) fish in the clear water.
5. If you dive ______ (deep), you might see large fish and turtles.
6. Qinghai Lake is the ______ (large) salt lake in China.
7. Visitors can photograph ______ (wild) and ride horses there.
8. Try to make your advertisement as ______ (persuade) as possible.
七、选词填空。
colder and colder, put, shine, cover, fourteen, part, kilometres, strong, high, top
The sea looks very beautiful when the sun is 1 on it. It can be very terrible when there is a 2 wind. The
sea is very big. It 3 three quarters of the earth. The sea is also very deep in some places. There is one place
where the sea is about 11 4 deep there. The 5 mountain in the world is about 9 kilometres high. If that
mountain was 6 into the sea at that place, there would still be 2 kilometres of water above it!
In most 7 of the sea, there are plenty of fish and plants. Some live near the 8 of the sea. Others live
deep down. There are also a lot of small living things and lots of fish living by eating them. The sea can be very
cold. When people go deep under the water, the sea becomes 9 . Only some men can go down into the deep sea.
However, in 1970, five women scientists lived in the deep sea for 10 days.
八、阅读下面短文，从短文后的选项中选出可以填入空白处的最佳选项。The Great Barrier Reef has experienced a third big coral bleaching (白化) event in five years, according to
Australia’s government group the Great Barrier Reef Marine Park Authority (GBRMPA).
1 It runs for over 2,300 kilometres off the northeast coast of Australia. It is home to thousands of different
forms of underwater life.
Most corals only grow in warm oceans. But when the oceans become too warm, the corals cannot survive. As
the temperature of oceans has gone up in recent years, corals around the world have begun to die off. 2
The coral shapes are built over a long time by millions of tiny coral animals. And coral reefs are home to many
other sea animals. 3 It’s also about the animals that live in and around them.
This February was the hottest month ever for the waters around the Great Barrier Reef. 4 The GBRMPA
has marked its outlook for the corals’ condition from “poor” to “very poor” because of warming oceans.
Though local action can fix some parts of the problem, the GBRMPA reports that the larger problem is still a
global one. “ 5 ” the group says.
A．In some areas, ocean temperatures were as much as 2.8 ℃ higher than average (平均值).
B．This is often called “coral bleaching” because sometimes the dying corals turn white.
C．The Great Barrier Reef in the Pacific Ocean is the largest coral reef in the world.
D．So when corals die off, it’s not just about the corals.
E．Climate change remains the greatest challenge to the Reef.
九、阅读理解。
According to scientists, a lake with a round shape is very common. However, Kingsley Lake in Florida, the
USA, makes them very surprised.
Kingsley Lake is one of the best fishing places in Florida, but few people know what really makes this place
special. It’s an unusually round shape. The lake is considered the roundest lake in the world. In fact, we can only
see how round the lake is from the air.
What caused Kingsley Lake to have this special shape? Some people think human beings have changed the
structure (结构) of Kingsley Lake so that it is unusually round. However, in fact, this lake is completely free from
human activities. It is believed to have formed naturally. It also appears that the lake is the result of the movement
of rocks, which gave the present shape of Kingsley Lake.
Kingsley Lake has a diameter of about 3.2 kilometres. It is 53.7 metres above sea level, which makes Kingsley
Lake one of the highest lakes in Florida. Kingsley Lake is about 27.4 metres deep and it is also considered one of
Florida’s deepest lakes.
According to the survey, Kingsley Lake has an unchanging water level because of its surface drainage (排水)
system. This system helps the floodwater easily run from the lake to the areas around. What’s more, the lake has
many shallow (浅的) water areas, so it can be filled with water again in no time, creating the balance (平衡) of the
water in the lake.
Kingsley Lake is now a famous tourist destination in the summer. Each year, it attracts about 120,000 tourists.
It also provides a home for a lot of endangered animals.
1．Why do scientists feel surprised when they see Kingsley Lake?A．Because it looks so beautiful.
B．Because it is a good fishing place.
C．Because it is a tourist destination.
D．Because it has quite a round shape.
2．What’s Paragraph 3 mainly about?
A．The possible reason why Kingsley Lake is unusually round.
B．The influence which human activities have caused.
C．The present shape is given by the movement of rocks.
D．The details people must know about Kingsley Lake.
3．Which of the following is TRUE about Kingsley Lake?
A．It’s a natural lake.
B．It’s a man-made lake.
C．It’s the world’s deepest lake.
D．It’s the highest lake in the USA．
4．What’s the writer’s purpose in writing the passage?
A．To introduce a lake with a special shape.
B．To call on more people to protect the lake.
C．To attract more tourists to Kingsley Lake.
D．To describe the beauty of Kingsley Lake.
十、完形填空。
Greenland is the largest island in the world. It is in the northeast of North America.
Near Greenland is 1 island. It is small. 2 name is Iceland. Do you think that Greenland is green and
warm? Do you think that Iceland is white 3 ice? If you do, you are 4 . Not many people live on the big island of
Greenland. There are more people in your hometown than those in the whole Greenland. That is 5 Greenland is
not green. Greenland is white. Most of the island is covered 6 ice. The ice covering Greenland is 7 than the
tallest building in the world. What 8 Iceland? Is it colder than Greenland? No, it isn’t. Iceland has ice, but not so
much ice 9 Greenland. Iceland has a lot of hot springs(温泉). They give out hot water and steam. The climate(气
候)is not so 10 as Greenland. And there are a lot more people who live in Iceland.
1．A．the other B．other C．another D．others
2．A．It B．Its C．It’s D．Their
3．A．on B．in C．of D．with
4．A．right B．wrong C．good D．clever
5．A．because B．why C．what D．how
6．A．with B．in C．of D．to
7．A．high B．higher C．the highest D．more higher
8．A．in B．on C．about D．over
9．A．like B．than C．that D．as10．A．hot B．cool C．cold D．warm
A Wonder Under Threat
Part 1: Read and Explore
The Great Barrier Reef is often called the "rainforest of the sea." It is the largest living structure on Earth, so
big that it can be seen from space. Located off the northeastern coast of Australia, this coral reef system stretches
over 2,300 kilometers and covers an area of about 345,000 square kilometers. It includes more than 2,900
individual reefs and 900 white sand islands.
But the reef is not just a beautiful place—it is home to thousands of marine species. Here, you can find 1,500
types of fish, 400 types of coral, and many endangered animals like sea turtles and dugongs. The clear, warm water
makes it a perfect place to swim, snorkel, and dive. For ocean lovers, a visit here truly is the dream of a lifetime.
However, this natural wonder is in danger. Rising sea temperatures have caused coral bleaching, which turns
the colorful coral white and can kill it. Pollution and human activities also harm the reef. Scientists say that without
action, we could lose most of the reef within our lifetime.
Today, many organizations are working to protect the reef. They plant new coral, clean up rubbish, and teach
visitors how to be responsible. Tourists are asked not to touch the coral, to use reef-safe sunscreen, and to take their
rubbish home.
The Great Barrier Reef is not only a treasure for Australia—it is a treasure for the whole world. Protecting it
means protecting our planet's future.
Task 1: Multiple Choice
1. Why is the Great Barrier Reef called the "rainforest of the sea"?
A. Because it has many trees underwater.
B. Because it is the largest living structure and home to thousands of species.
C. Because it rains a lot there.
D. Because it is located near the rainforest.
2. How many types of fish can be found in the Great Barrier Reef?
A. 400 B. 900 C. 1,500 D. 2,900
3. What is coral bleaching?
A. Coral turning white and dying because of rising sea temperatures.
B. Coral changing color naturally.
C. Coral growing faster in warm water.
D. Coral being cleaned by fish.
4. What are tourists asked to do to protect the reef?
A. Swim with sharks.
B. Touch the coral carefully.
C. Use reef-safe sunscreen and take rubbish home.
D. Feed the fish.5. What is the writer's main purpose in writing this passage?
A. To introduce the location of the Great Barrier Reef.
B. To describe the beauty of the reef and call for its protection.
C. To explain how coral reefs are formed.
D. To compare the Great Barrier Reef with other natural wonders.
Task 2: Mind Map
Category Details from the Passage
Location 1. Off the ____________ coast of Australia
Size 2. Covers ____________ square kilometers
What it includes 3. Over 2,900 reefs and ____________ white sand islands
Marine life 4. ____________ types of fish; 400 types of coral
Activities 5. Swim, snorkel, and ____________
Threats 6. Coral ____________ and pollution
Protection efforts 7. Plant coral, clean up ____________
Tourist rules 8. Do not touch coral, use ____________ sunscreen
Task 3: Connection to life
Nature is full of wonders, but many of them are under threat. Think about a natural place near your home or a
place you have visited—a park, a river, a lake, a forest, or even a beach.
Write a short paragraph (60-80 words) to answer the questions below:
What is this natural place? Where is it?
What makes it beautiful or special?
·What problems does it face?
What can you and your classmates do to help protect it?
____________________________________________________________________________________________
____________________________________________________________________________________________
________________________________________________________________________________________________________________________________________________________________________________________
____________________________________________________________________________________________.
