C Complete the conversation with the sentences in the box. Write the main structures of the sentences in the blanks.a The earth turns once every day.b Both halves always have different seasons.c Our planet is so interesting.d That’s a great question.e It gets more direct sunlight.f It leans (倾斜) a little.Mike: Dad, winter just started here in Hangzhou, but it’s summer in Auckland. Why do different parts of the world have different seasons?Dad: (1)
Our earth is divided into the northern half and the southern half. (2)
Mike: But why?Dad: It’s because of how the earth moves. (3)
It turns around an imaginary pole in its centre.Mike: I know that much.Dad: But did you know that this imaginary pole isn’t straight up and down? (4)
Right now, the southern half of the planet is leaning towards the sun. (5)
That’s why it’s summer there. Up here, the northern half is leaning away from the sun. We don’t get as much direct sunlight, so it’s colder here.Mike: Yes, that’s true. It’s snowy too! So ... when the northern half starts leaning towards the sun, we will have summer?Dad: Exactly!Mike: (6)
Thanks for explaining this to me, Dad.Dad: No problem, Mike.
答案：【解析】：
这是一道英语语法和句子结构填空的题目，同时要求写出句子主干结构。题目给出了一个对话，对话中父亲向Mike解释了为什么世界上不同地方有不同的季节。对话中有6个空白处需要填写，同时需要分析所填句子的主要结构。
1. 对于第一个空白处，需要填入一个引导解释或回答问题的句子。选项d "That's a great question." 是一个常用的回答，表示对问题的赞赏，并引出接下来的解释。
2. 第二个空白处需要描述地球被分为两半的情况。选项b "Both halves always have different seasons." 直接说明了地球两半的不同季节，与Mike的问题相呼应。
3. 第三个空白处需要描述地球的运动方式。选项a "The earth turns once every day." 准确地描述了地球每天自转一次的事实。
4. 第四个空白处需要解释地球自转轴倾斜的原因。选项f "It leans a little." 直接说明了地球自转轴是倾斜的。
5. 第五个空白处需要描述地球南半球倾向太阳时的季节情况。选项e "It gets more direct sunlight." 解释了为什么南半球是夏天，因为它得到了更多的直射阳光。
6. 第六个空白处是Mike对父亲解释的回应。选项c "Our planet is so interesting." 表达了Mike对地球现象的兴趣和好奇。
主干结构分析：
1. "That's a great question." 主干为 "That's a question."
2. "Both halves always have different seasons." 主干为 "Both halves have seasons."
3. "The earth turns once every day." 主干为 "The earth turns."
4. "It leans a little." 主干为 "It leans."
5. "It gets more direct sunlight." 主干为 "It gets sunlight."
6. "Our planet is so interesting." 主干为 "Our planet is interesting."
【答案】：
1. d (主干: That's a question.)
2. b (主干: Both halves have seasons.)
3. a (主干: The earth turns.)
4. f (主干: It leans.)
5. e (主干: It gets sunlight.)
6. c (主干: Our planet is interesting.)
S
ound
s of seasonsA Geo
rge
is
writing an essay about t
he sounds of different seasons. Read his essay and learn how to write about seasonal sounds.Sounds in every seasonUse first-person pronouns, like "me" and "I", to make your arti
cle feel personal.Use these words to help the reader imagine the environment.Use the phrase "the sound of" to describe different sounds.We all know that each season has its own weather. But for me, each season also has its own sounds.In my hometown, we get lots of snow. When the snow melts in the spring, I can always hear it. It drips off my roof onto the ground. There is always lots of rain in the spring too. Every spring, I listen to the sound of raindrops on my roof.The summer brings all kinds of different sounds. We usually have to close our windows in the summer because it gets too hot. But in the evenings, we open them again, and sometimes I hear frogs since we live near a lake. Frogs can make loud sounds, and it seems that they are singing a lively song about nature. Summer is a noisy season because it’s full of life!Use time expressions to talk about regular events in the seasons.Every autumn, I hear geese flying by my house. They go "honk, honk" as they fly to warmer places. The wind also gets stronger, and sometimes I hear the branches of the tree knock against my bedroom window.Use sound words to help the reader imagine different sounds.In the winter, we spend a lot of time inside. When we go outside, we usually play in the snow. I love the sound of my boots crunching across the snow. Near my house, children often play ice hockey. I enjoy the sound of their skates moving across the ice.I love all these sounds because I love all the seasons.◆ Structure of the article ◆Beginning: Introduce the topic in a clear and simple way.Main bodyTalk about the sounds of spring.Talk about the sounds of summer.Talk about the sounds of autumn.Talk about the sounds of winter.Ending: Summarize your feelings about the sounds of different seasons.B When you think about the different seasons, what sounds come to mind? Write an essay about the sounds of the seasons.
答案：# Sounds of my seasons
My friends all talk about the pretty sights of different seasons, but for me, each season has its own special sounds that I love so much.
When spring comes, the most lovely sound to me is the sound of birds singing in the newly green trees. Every spring morning, I wake up to their soft songs outside my bedroom window. When I walk in the community park, I can also hear the sound of little kids laughing as they run to fly their colourful kites in the warm wind.
Summer is full of lively warm sounds. On summer nights, my family and I always sit in the yard to enjoy the cool air. I can hear the sound of cicadas singing in the big tree, and the "shush, shush" sound of my grandma's palm fan makes me feel totally relaxed. When summer heavy rain falls, I love listening to the sound of raindrops hitting the leaves, it feels like the rain is playing a soft tune.
Every autumn, the wind brings nice gentle sounds. When I step on the dry fallen yellow leaves on my way to school, they make a light "crunch, crunch" sound under my feet. I also love the sound of my grandpa's orange trees being shaken, ripe oranges fall down and hit the soft grass with a little "plop".
In cold winter, the world turns quiet at first after a snowfall. But soon I can hear the happy sound of my little neighbours shouting as they make snowmen outside. When the Spring Festival comes, we can always hear the sound of distant firecrackers, it tells us the warm new year is on the way.
All these warm little sounds stay in my mind all the time, they make every season feel special, and I love all of them.
解析：
这是一篇八年级的话题写作题，要求围绕“四季的声音”创作短文，写作注意要点如下：
1. 结构遵循要求：开篇清晰点明主题，主体分段依次描写春、夏、秋、冬四季的特色声音，结尾总结抒发个人对四季声音的情感。
2. 符合写作规范：多使用第一人称I/me让文章更有个人感，多用短语"the sound of"描述各类声音，搭配时间表达（如every spring, on summer nights等）、环境描写词、拟声词，增强画面代入感。
3. 语言贴合八年级难度，保证语法准确，句式简单自然即可。
