初中九年级 · 上册 · 第 8 课
A Mystery
学习推理词汇，掌握情态动词表推测，读一篇推理短文。
📖 22 个单词💬 14 句对话📄 200词短文✏️ 12+5 题
1本课单词
点卡片看中文，点 🔊 听发音。推理词汇 + must/can't/might。
2情景对话
点任意格 🔊 听整格对话。
1Cozy老师
Hello, kids! Did you hear the strange noise last night?
孩子们，昨晚你们听到奇怪的声音了吗？
Cozy老师
Let's solve the mystery together!
我们一起来解开这个谜团吧！
2Jack
It must be a ghost in the old house!
一定是老房子里的鬼！
Lily
That can't be true! There is no such thing as a ghost.
那不可能是真的！世上没有鬼。
3Li Lei
It might be an alien from another planet.
可能是来自其他星球的外星人。
Han Mei
Wait, I saw a strange light all of a sudden.
等等，我突然看到一道奇怪的光。
4Jack
That's unbelievable! Who could be staring at us?
真令人难以置信！谁会在盯着我们看？
Lily
Nobody knows, but there was a knock on the door!
没人知道，但刚才有人敲门！
5Li Lei
It could be a hoax or just an unexpected surprise.
可能是恶作剧，或者只是意外的惊喜。
Han Mei
In disbelief, we opened the door and found a cat!
我们难以置信地打开门，发现是只猫！
6Cozy老师
Haha! The mystery was solved with a simple answer.
哈哈！谜团被一个简单的答案解开了。
Cozy老师
Remember: use must, might and can't to make guesses!
记住：用 must、might 和 can't 来推测！
3短文阅读：老房子里的谜团 (The Mystery in the Old House · 约200词)
先自己理解，再点 🔊 听朗读。读后完成 5 道阅读理解题。
The Mystery in the Old House
Last weekend, a strange thing happened in our town. People heard a loud noise at night coming from an old, empty house. Some said it must be a ghost. Others believed it might be an alien from another planet.
上周末，我们镇上发生了一件怪事。夜里人们听到老空房子里传出很大的声响。有人说一定是鬼。其他人相信可能是来自另一个星球的外星人。
Jack, Lily, Li Lei and Han Mei decided to solve the mystery. All of a sudden, they saw a light in the window. In disbelief, they stared at the house for a long time. Nobody dared to knock on the door at first.
杰克、莉莉、李雷和韩梅决定解开谜团。突然，他们看到窗里有一道光。他们难以置信地盯着房子看了很久。起初没人敢敲门。
"It must be a ghost!" Jack whispered. "That can't be true," said Lily. "There must be a simple answer." Just then, there was a sudden knock. The four friends jumped in horror.
“一定是鬼！”杰克小声说。“那不可能是真的，”莉莉说，“一定有个简单的答案。”就在这时，突然传来敲门声。四个朋友吓得跳了起来。
With fear, Li Lei slowly opened the door. An unexpected sight met their eyes: a little bird had flown into the house and was knocking on the window, trying to get out. The "ghost" was only a poor bird!
李雷带着恐惧慢慢打开门。一个出人意料的景象映入眼帘：一只小鸟飞进了屋子，正在敲窗户想飞出去。“鬼”只是一只可怜的小鸟！
They laughed at their own fear. The mystery, the horror and the thriller-like night were all a hoax of nature. The story taught them a lesson: do not believe in ghosts, but look for the truth with your own eyes.
他们笑自己的恐惧。谜团、恐惧和像惊悚片一样的夜晚全是自然界的恶作剧。这个故事给他们上了一课：不要相信鬼，要用自己的眼睛寻找真相。
📖 阅读理解（0/5）
1. Where did the strange noise come from?
2. What did the four friends see in the window?
3. Who opened the door at last?
4. What was the "ghost" in fact?
5. What lesson did the story teach them?
4语法小课堂：情态动词表推测
对现在的推测：
must 一定 · might 可能 · can't 不可能 + 动词原形
must 一定
It must be Tom's. He loves it.
一定是汤姆的，他喜欢它
might 可能
It might belong to Lucy.
它可能属于露西
can't 不可能
It can't be a dog's toy.
不可能是狗的玩具
💡 must 肯定推测；can't 否定推测；might 不确定。
5课后练习
1. The strange light ___ be a plane; it's too bright.
2. The noise ___ be the wind in the trees.
3. Whose bag is this? It ___ belong to the new student.
4. Look at the broken window. Someone ___ have entered.
5. The door was open, so the thief ___ have locked it.
6. It ___ be a ghost, because there is no such thing.
7. The old house is dark and quiet. It ___ be empty.
8. "___ is knocking at the door?" "It might be Jack."
9. The story was so strange that nobody ___ it.
10. All of a sudden, the lights ___ out.
11. He stared ___ the strange object in disbelief.
12. The mystery ___ solved by a simple answer.