《2025年练就优等生课后提分攻略九年级英语全一册通用版》

4a 速连
1. myth虚构的东西；流言碰撞
2. describe描述虚构的东西；流言
3. crash碰撞描述
4. as clear as glass透明如玻璃人造建筑物
5. run into互相碰撞互相碰撞
6. man-made building人造建筑物透明如玻璃

答案： 4a 1.虚构的东西；流言 2.描述 3.碰撞
4.透明如玻璃 5.互相碰撞
6.人造建筑物

4b 综合阅读
We can often read interesting "facts" about space online. However, some of them are wrong. The following are some common myths about space.
Myth 1: The sun is yellow.
Many people believe the afternoon sun is yellow. However, the light it gives out is white. The earth's atmosphere makes the sun appear yellow and the sky appear blue. This is called Rayleigh scattering(瑞利散射). The sky is, in fact, as clear as glass.
Myth 2: The asteroid belt(小行星带) is dangerous.
In many movies, the asteroid belt is often described as a dangerous place. It is crowded with rocks that run into each other. However, these movies are wrong. In fact, all the asteroids together weigh only about four percent of the moon. That's why scientists are excited when they happen to see one asteroid crashing into another.
Myth 3: The Great Wall of China is the only man-made building that can be seen from space.
It all depends on where you see above the earth. From the International Space Station(ISS), you can see the Great Wall and many other man-made buildings. From the moon, you can't see any buildings, but you may see some city lights.
Myth 4: The moon is very close to the earth.
Sometimes, the moon looks very close. It seems like you can almost touch it. In fact, the moon is about 385,000 kilometers away from the earth. If you take a Boeing 747 and fly to the moon at full speed, the journey will take about 17 days!
1、2题完成句子;3—5题简略回答问题。
1.The earth’s atmospherechanges the colors of the sun and the sky in people's eyes.
2. According to the underlined sentence, the total weight of all the asteroids is aboutfour percent/4%of the weight of the moon.
3. What can be seen from the International Space Station(ISS)?
The Great Wall and many other man-made buildings.
4. How long will it take to travel from the earth to the moon by taking a Boeing 747 at full speed?
About 17 days.
5. After reading the text, what can you learn from it?
After reading the text, we can learn some interesting facts about space, and also correct some common myths about space. The sun is not yellow. The yellow color we see is due to the Rayleigh scattering in the earth’s atmosphere.(答案不唯一，仅供参考)

答案： 4b 1.The earth’s atmosphere
2.four percent/4%
3.The Great Wall and many other man-made buildings.
4.About 17 days.
5.After reading the text, we can learn some interesting facts about space, and also correct some common myths about space. The sun is not yellow. The yellow color we see is due to the Rayleigh scattering in the earth’s atmosphere.(答案不唯一，仅供参考)