C Read the article about a monarch butterfly’s life. Use the words in brackets to help you write sentences. Add conjunctions if necessary.
I am a monarch butterfly from Canada! The summer is great fun. I fly from flower to flower and tree to tree. But in autumn, life gets challenging. I must make a long journey south to the Monarch Butterfly Biosphere Reserve in Mexico. Right now, the weather is changing.
(1) (I/the temperature/feel/must travel south/I/dropping). Goodbye, Canada! My friends and I start the journey southwards. It takes weeks to get to Mexico. (2) (the trip/me/makes/important/it/is/tired). Winter in Canada is too cold for us. We would die there. When we finally get to the Monarch Butterfly Biosphere Reserve, I’m so happy! The trees here are covered with other monarch butterflies. There are so many of us together! (3) (each other/comfort and love/we/give).
In spring, monarch butterflies will travel back to Canada or America. But I won’t travel with them. My life will be over then. Instead, my children and grandchildren will make the trip. (4) (good luck/wish/the new butterflies/I).
(1)
I feel the temperature dropping and I must travel south.
(2)
The trip makes me tired but it is important.
(3)
We give each other comfort and love.
(4)
I wish the new butterflies good luck.
答案：(1) I feel the temperature dropping and I must travel south.
(2) The trip makes me tired but it is important.
(3) We give each other comfort and love.
(4) I wish the new butterflies good luck.
Understanding ecosystems
◆ Structure of the article ◆
Beginning: Introduce your ecosystem and describe its special features.
Main body Talk about the plants and animals in the ecosystem. Talk about threats to the ecosystem. Use separate paragraphs for different threats.
Ending: Summarize your thoughts about the ecosystem.
B Research some interesting ecosystems in the world and write an article about one of them. You can include information about the plants and animals in the ecosystem and the problems it faces.
The Amazon Rainforest: the lungs of the Earth
One of the world's most amazing ecosystems is the Amazon Rainforest, located in South America. It is the largest rainforest on Earth, with high temperatures and heavy rainfall all year round. This vast area is covered with dense trees, forming a green "roof" that blocks much of the sunlight.
The Amazon Rainforest is home to an incredibly rich variety of plants and animals. There are thousands of tree species, some growing over 60 meters tall. Colorful orchids and bromeliads grow on tree branches. Animals here include jaguars, sloths, monkeys, and countless birds like macaws. The river systems in the rainforest are also home to piranhas and pink dolphins.
However, the Amazon Rainforest faces serious threats. Deforestation is a major problem. People are cutting down trees to make space for farms and roads. Each year, large areas of the rainforest disappear, destroying the homes of many plants and animals.
Another threat is climate change. Rising temperatures and changing rainfall patterns are harming the rainforest. Some areas are becoming drier, making it harder for plants to grow and increasing the risk of wildfires.
The Amazon Rainforest is crucial for our planet, producing much of the world's oxygen. We must work together to protect it, or this wonderful ecosystem will be lost forever.
答案：The Amazon Rainforest: the lungs of the Earth
One of the world's most amazing ecosystems is the Amazon Rainforest, located in South America. It is the largest rainforest on Earth, with high temperatures and heavy rainfall all year round. This vast area is covered with dense trees, forming a green "roof" that blocks much of the sunlight.
The Amazon Rainforest is home to an incredibly rich variety of plants and animals. There are thousands of tree species, some growing over 60 meters tall. Colorful orchids and bromeliads grow on tree branches. Animals here include jaguars, sloths, monkeys, and countless birds like macaws. The river systems in the rainforest are also home to piranhas and pink dolphins.
However, the Amazon Rainforest faces serious threats. Deforestation is a major problem. People are cutting down trees to make space for farms and roads. Each year, large areas of the rainforest disappear, destroying the homes of many plants and animals.
Another threat is climate change. Rising temperatures and changing rainfall patterns are harming the rainforest. Some areas are becoming drier, making it harder for plants to grow and increasing the risk of wildfires.
The Amazon Rainforest is crucial for our planet, producing much of the world's oxygen. We must work together to protect it, or this wonderful ecosystem will be lost forever.
