一、美文鉴赏
The Amazon Rainforest is in South America. It's hot and wet. It is home to many plants and animals. The plants grow fast and well. The kinds of plants are over 80,000, such as bananas and hot lips. They can give much food to the animals, so you can see different kinds of animals like monkeys, snakes, birds and so on.
The Sahara Desert is in the north of Africa. It's big. The climate of the Sahara Desert is very hot. It's also very dry and rains little. There are only about 500 kinds of plants, such as desert roses and olive trees. There you can see animals like camels, desert foxes and so on. Do you want to go and see them?
亚马孙热带雨林位于南美洲，这里气候炎热潮湿，是众多动植物的家园。雨林中的植物生长迅速且长势良好，植物种类超过8万种，比如香蕉树和热唇草。这些植物能为动物提供充足的食物，因此你能在这里看到各种各样的动物，例如猴子、蛇、鸟类等。
撒哈拉沙漠位于非洲北部，面积广阔。撒哈拉沙漠的气候极为炎热，同时也非常干旱，降雨量极少。这里仅存约500种植物，像沙漠玫瑰和橄榄树。在沙漠中，你可以看到骆驼、沙狐等动物。你想去看看它们吗？

答案略

二、写作指导
【话题剖析】
本单元以“探索自然奥秘”为话题，介绍了探索自然的著名人物、自然奥秘等，旨在激励我们勇于探索、乐于奉献，并积极感受大自然带来的美好。
【佳句积累】
The rainforest is home to many plants and animals.
热带雨林是许多植物和动物的栖息地。
The interesting experience allowed me to enjoy the beauty of nature.
这次有趣的经历让我领略到了大自然的美。
The teacher showed us different plants, teaching us how to tell them apart.
老师给我们展示了不同的植物，并教我们如何区分它们。
Exploring nature is like opening a magic book with hidden secrets.
探索自然就像打开一本藏着秘密的魔法书。
Last trip, we hiked mountains, watched birds, and found a clear stream.
上次旅行，我们徒步登山、观鸟，还发现了一条清澈的小溪。
Seeing a small seed grow makes me know nature is amazing.
看着小种子发芽，我才知道大自然多神奇。
Exploring nature helps me learn about plants and love our planet more.
探索自然让我了解植物，更热爱我们的地球。
It made me realise how wonderful nature is and how important it is to protect nature.
这让我意识到大自然是多么美妙，保护自然又是多么重要。
【例文研析】
1. 写作任务
假定你是李华，你校于4月22日开展了一场“探索校园植物”的活动。你的笔友Mike很感兴趣，并发邮件询问你具体的活动细节。请结合以下提示写一封回信，谈谈活动过程及你的收获。

注意：
(1)可适当增加细节，以使行文连贯；
(2)邮件中不得出现真实姓名和学校名称；
(3)词数80～100(开头和结尾已给出，不计入总词数)。
Dear Mike，
I'm glad that you are interested in the "Exploring Plants on Campus" activity at our school.
Best wishes，
Li Hua
2. 思路点拨

3. 范文品鉴
Dear Mike，
I'm glad that you are interested in the "Exploring Plants on Campus" activity at our school. I can't wait to share something about it with you.
Firstly, we took an exciting tour around the schoolyard. Our science teacher showed us different plants and taught us how to tell them apart. It was so fun that some of us picked up some beautiful fallen leaves. Then, a guest speaker gave us an interesting speech about different kinds of plants in the world. She used simple stories to make the speech easy to understand. Finally, we attended the plant exhibition in our school hall, which was really cool.
This activity was really meaningful. It made me realize how wonderful nature is and how important it is to protect nature. I really hope you can also join in such a fun activity in the future.
Best wishes，
Li Hua

Dear Mike,
I'm glad that you are interested in the "Exploring Plants on Campus" activity at our school. I can't wait to share something about it with you.
Firstly, we took a tour around the schoolyard. Our science teacher showed us different plants and taught us how to tell them apart, and we picked up some beautiful fallen leaves happily. Then, a guest speaker gave us an interesting speech about various plants in the world with funny stories. Finally, we attended the cool plant exhibition in our school hall.
This activity was meaningful. It made me realize how wonderful nature is and how important it is to protect it. I hope you can join such an activity one day.
Best wishes,
Li Hua

本题为书信写作题，需围绕“探索校园植物”活动展开写作，遵循“引出话题-介绍活动过程-表达收获”的思路。先表达分享活动的意愿，接着依次介绍校园植物探访、植物主题演讲、植物展览等活动环节，可适当添加细节让内容更连贯；最后结合活动抒发对自然的感悟，注意使用符合八年级下册水平的词汇和句式，词数控制在80-100之间，符合书信格式要求。