Unit 1 Period 1 Welcome to the unit & Reading(1) 导学案（含答案） 2024-2025学年高一英语译林版必修第三册

Unit 1　Nature in the balance
1. Have a good understanding of the text “The Amazon rainforest: a natural treasure” with the reading strategy: drawing charts about the text；
2. Retell the text in your own words；
3. Write something about “The Amazon rainforest: a natural treasure” with about 150 words, using phrases and sentence patterns that have been learnt.
Ⅰ. Choose the best answers to the following questions according to the text.
(　　) 1. What does the word “maintain” mean in the sentence “As the largest rainforest in the world, it plays a significant role in maintaining the fine balance of the Earth's ecosystem.”？
A. Remain. B. Contain.
C. Keep. D. Insist.
(　　) 2. Why is the Amazon rainforest very important to the Earth
A. It is the largest rainforest in the world.
B. It helps maintain the fine balance of the Earth's ecosystem.
C. It is home to a variety of plants and animals.
D. It breathes life into the planet by fixing carbon.
(　　) 3. What helps break down a jaguar's body after its death
A. A large number of microorganisms.
B. The nutrients of the earth.
C. A variety of insects.
D. A kind of frog.
(　　) 4. Which is one major danger to species in the Amazon rainforest
A. Agriculture.
B. Cattle farming.
C. Human activities.
D. Carbon and oxygen.
(　　) 5. What is the text mainly about
A. The significance of agriculture.
B. The value of the Amazon rainforest.
C. The way to enjoy the natural treasure.
D. The remark on the Amazon rainforest.
Ⅱ. Answer the following questions according to the text.
1. What do you suppose the text is about according to the title
2. Why is the Amazon rainforest known to have the richest biodiversity in the world
3. How do you understand the “lungs of the planet”？
1. Why is the word “treasure” used in the title
2. What is the purpose of using “Welcome to the jungle” in the beginning
3. What function of the Amazon rainforest is the most important in your mind Why
1. Can you think of some ways to maintain the fine balance of the Earth's ecosystem
2. If we change the adjectives “significant” and “only” in the sentence “While a significant number of jaguars survive here, they are only one element of this forest's food chain.”， is the meaning clearly conveyed
Activity 4: Consolidate and feed back.
Ⅰ. 根据中文提示，从文中找出相应表达。
1. 自然奇观
2. 根据……判断
3. 在……中起重要作用
4. 维持地球生态系统的微妙平衡
5. 在长度上
6. 由……组成
7. 种类繁多到难以置信的野生动物
8. 在底部
9. 高耸的古老阔叶树
10. 处于濒临灭绝的危险中
Ⅱ. 单句语境填词，注意词的词性和词形。
1. They raised chickens for eggs, pigs and c__________ for meat, and cows for milk and cream, from which Grandma made butter and cheese.
2. If we don't stop c__________ change, many animals and plants in the world will be gone.
3. Scientists say the c__________ of South America and Africa separated millions of years ago.
4. The product is sold both at home and o__________．
5. How many species do you believe will be threatened with e__________ when the reservoir(水库) is completed.
6. Located at the foot of the __________(高耸的) Alps, the Austrian city of Innsbruck offers guests a chance to appreciate a blend of old and new.
7. They found something buried __________(在……下面) a pile of leaves.
8. When we choose food, we must keep in mind that the food we choose should give us the (营养物) we need.
9. The number of people employed in __________(农业) has fallen in the last decade.
10. A breathtaking trick potentially left over from our ancestors might be found in us—the ability to sense __________(氧气) through our skin.
Ⅲ. 根据课文内容填空。
The Amazon rainforest, the largest rainforest in the world, crosses into eight countries, including Brazil and Peru, and one overseas region of France, all on the South American continent. It covers 1.__________ area of around 6 million square kilometres. It is named after the Amazon River, 2.__________ is close to 6，400 kilometres in length, 3.__________(support) many different ecosystems which give this area the richest biodiversity on the Earth: one in ten known species in the world live in it.
There are 4.__________(variety) of plants in the Amazon rainforest. Of the 390，000 plant species known to us, over 40，000 can be found there. The forest's different levels support an 5.__________(believe) variety of wildlife. Each level of the forest forms its own little world, home to different kinds of living things.
There are more than 1，300 species of birds and over 400 species of mammals living in the jungle. Among them 6.__________(be) the jaguar, which 7.__________(survive) here as only one element of this forest's food chain.
The Amazon rainforest is not only home to numerous species of animals and plants but also known as the “lungs of the planet”， because it breathes life 8. the planet by fixing carbon and producing over 20 per cent of all the Earth's oxygen. But over the past 50 years, about 17 per cent of the rainforest 9.__________(disappear) due to human activities. And some more species are in danger of 10.__________(extinct). It is time for us to do something to protect it.
Ⅳ. 完成句子。
1. 不能给他安排这项任务，一则他年纪大了，二则他身材弱。
Don't set him the task.______________， he's old; ________________， he's in poor health.
2. 一大群蚂蚁浩浩荡荡地穿过小径。
____________________________ marched across the path.
3. 我在我的手提包底部找到了几枚硬币。
I found several coins __________________________________．
4. 我感谢那些困难的日子，因为我得到了成长。
I ______________________ those difficult times, because I have grown up from those times.
5. 我没有足够的勇气告诉她我对她的看法。
I wasn't __________________________________ what I thought of her.
6. 池塘里满是游来游去的金鱼。
The pool __________________________________ goldfish.
Unit 1　Nature in the balance Period 1　Welcome to the unit & Reading(1)
【活动方案】
Activity 1：
Ⅰ. 1—5 CBACB
Ⅱ. 1. It's about the Amazon rainforest.
2. Because one in ten known species in the world can be found there.
3. The Amazon rainforest breathes life into the planet by fixing carbon and producing over 20 per cent of all the Earth's oxygen. Thus, it can be called the “lungs of the planet”．
Activity 2：
1. It expresses the main idea of the text and highlights the Amazon rainforest's importance to the Earth.
2. To arouse readers' interest and lead to what follows in the text.
3. It is home to vast species in the world. Because without the Amazon rainforest, a mass of plants and animals will have no food to eat and nowhere to live.
Activity 3:
1. Management of natural resources, controlling population, water protection, recycling and so on.
2. No. The two adjectives show a strong contrast, which conveys that the Amazon rainforest has the richest biodiversity and is really a natural treasure.
Activity 4：
Ⅰ. 1. natural wonders　2. judge from …　
3. play a significant role in …　4. maintain the fine balance of the Earth's ecosystem　
5. in length　6. be made up of …　7. an unbelievable variety of wildlife　8. at the bottom　
9. towering ancient hardwoods　10. in danger of extinction
Ⅱ. 1. cattle　2. climate　3. continents
4. overseas　5. extinction　6. towering　
7. beneath　8. nutrients　9. agriculture　10. oxygen
Ⅲ. 1. an　2. which　3. supporting　4. varieties
5. unbelievable　6. is　7. survives　8. into
9. has disappeared　10. extinction
Ⅳ. 1. For one thing; for another thing　2. An army of ants　3. at the bottom of my bag　
4. am thankful for　5. brave enough to tell her 6. is alive with