Unit 4 The Wonders of Nature (Period 5)Section B (2a-Reflecting)学习任务单2025-2026学年人教版英语八年级下册

Unit 4 The Wonders of Nature (Period 5)

Section B (2a-Reflecting)

班级_________ 姓名_________

学完这一课，你能够掌握：

1．词汇：risky、southern、located、freshwater、type、attract、curious、traveller、natural、underground、northeastern、coast、coral、reef、include、sand、alive、structure、snorkel、school、turtle、lifetime；

2．能力：

（1）掌握本单元有关“自然奇观”的词汇和句型，并熟练进行语言输出；

（3）学习如何写广告；

（2）运用本单元所学知识组织语言完成关于“自然奇观”的主题写作。

3．交际功能：

（1）熟练运用形容词和副词的最高级和比较级以及大数字进行语言输出；

（2）综合运用本单元所学知识，并与同学合作完成单元项目。

【学习任务一】词汇检测

1．adj. 有危险（或风险）的 ________________

2．adj. 南部的；向南的 ________________

3．adj. 位于；坐落在 ________________

4．adj. 淡水的；淡水中生长的 ________________

5．n. 类型；种类 ________________

6．v. 吸引；招引；引起（反应） ________________

7．adj. 好奇的；求知欲强的 ________________

8．n. 旅行者；游客 ________________

9．adj. 自然的；天然的；天生的 ________________

10．adj. 水下的；用于水下的 adv. 在水下 ________________

11．adj. 东北的；东北方向的 ________________

12．n. 海岸；海滨 ________________

13．n. 珊瑚；珊瑚虫 ________________

14．n. 礁；礁脉 ________________

15．v. 包含；包括 ________________

16．n. 沙子 ________________

17．adj. 活着；在世；有活力 ________________

18．n. 结构（体）；构造；体系 ________________

19．v. 使用呼吸管潜泳 n. （浮潜用的）呼吸管 ________________

20．n. （鱼、鲸、海豚等的）群 ________________

21．n. 海龟；龟 ________________

22．n. 一生；终身 ________________

【学习任务二】

阅读教材第39页，根据汉语提示写出英文句子。

1．位于澳大利亚东北海岸的大堡礁是最令人惊叹的旅游胜地之一。

________________________________________________________________________

2．它占地面积达345 000平方千米，包含900多座岛屿和白色沙滩。

________________________________________________________________________

3．大堡礁也是有生命的！

________________________________________________________________________

4．如果你参观它，你将看到地球上最大的生物结构。

________________________________________________________________________

【学习任务一】

2a: Match the words on the left with their opposites on the right.

____ 1．below         ____ 5．top ____ 2．common       ____ 6．northern ____ 3．low           ____ 7．risky ____ 4．dead          ____ 8．survive

A．safe   E．unusual B．bottom  F．living C．southern  G．high D．above   H．die

2b: Read the examples and make more sentences using how and the words in the box.

How far is it from your home to school?

How heavy is a blue whale?

How large is your country?

How often do you exercise?

1．___________________________________________________________

2．___________________________________________________________

3．___________________________________________________________

4．___________________________________________________________

5．___________________________________________________________

6．___________________________________________________________

2c: Complete the passage with the correct forms of the words in the box.

deep   environment   survive   wonderful   surface   dive

Located in Siberia, Russia, Lake Baikal is one of the world’s most famous lakes. It is the ________ freshwater lake in the world. To reach the bottom, you must ________ 1,620 metres! It is also larger than most other lakes. Its ________ covers 31,500 square kilometres. That is bigger than the country of Belgium! Lake Baikal is very cold for most of the year.

But over 1,200 different types of animals can still ________ in this __________ . Today, the lake still attracts many curious travellers. After all, it is a great natural ________!

【学习任务二】

3a: Read the advertisement. Circle the numbers and underline the adjectives and adverbs used to describe the Great Barrier Reef.

The Great Barrier Reef:

An Amazing Underwater World

Do you love the ocean? Do you want to visit one of the natural wonders of the world? If so, visit the Great Barrier Reef!

Located on the northeastern coast of Australia, the Great Barrier Reef is one of the most amazing places to visit. It is the biggest coral reef in the world. It takes up an area of 345,000 square kilometres and includes over 900 islands and white sand beaches.

The Great Barrier Reef is also alive! If you visit it, you will see the largest living structure on earth. Here, you can swim, dive, or snorkel in the clear water and see coral, plants, and schools of colourful fish. If you dive deeper, you might even see large fish, turtles, and sharks. For people who love the ocean, visiting the Great Barrier Reef is the dream of a lifetime!

【学习任务三】

3b: Read a student’s notes on Qinghai Lake. Rewrite them in full sentences.

Qinghai Lake ·What: a salt lake ·Where: Qinghai Province, China ·Special fact: the largest lake in China (4,340 km²) ·Things to do: photograph wildlife (fish and birds), visit islands, ride a bike or horse

1．Qinghai Lake is a ________ in _____________________.

2．Qinghai Lake is _______________ in China.

3．It is _____________ in size.

4．If you visit Qinghai Lake, you can __________________________________________.

【学习任务四】

3c: Write an advertisement for Qinghai Lake or another natural wonder. Describe it and explain why people should visit it. Try to make your advertisement as persuasive as possible.

【学习任务五】

1．列提纲：

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