Level 4-Day 75.The Planetarium

Sherlock Holmes and the Duke's Son by Sir Arthur Conan Doyle单词提示1.centimeter 厘米2.tires 车胎原文Chapter 4: The Body on the MoorVery early the next morning, I opened my eyes and saw Holmes next to my bed.He was already dressed."Come, Watson," he cried, "there is hot coffee ready for yo ...  Show more

71.He began to learn English when he was twelve years old, that is to say, when he entered junior high school.他十二岁时也就是当他进入初中时就开始学英语了。72.Irene Pepperberg, a researcher at Northwestern University, is discovering that a parrot can not only mimic people but also learn the meaning of ...  Show more

L’autre jour, j’étais avec des amis à la campagne. C’était tard le soir, il faisait nuit, la lune était noire… Il faisait bon, l’air frais était agréable après la chaleur de la journée. On marchait tranquillement sur un chemin de terre, et je regardais le ciel parsemé d’étoile ...

How did the planets form? How did life happen? Where did Earth’s water come from? To answer questions like these, scientists used to go big—looking at planets, dwarf planets, and moons—but now small is the new big. Technology is zooming in on the pint-size stuff—asteroids, comets ...  Show more

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If you look up into the night sky, there are around 7,000 active satellites orbiting the Earth. They’re part of our daily life – essential for things like the internet, the GPS in our cars and giving us weather reports. Seven thousand might not sound a lot in the infinite expanse ...  Show more