Why is the Earth called a "blue planet"? A. Because it has a lot of blue flowers. B. Because most of its surface is covered by water. C. Because the sky is always blue. D. Because people like the color blue. 相关知识点: ...
Do you know why the Earth is called the"Blue Planet"?Because up to 70% of its surface is covered by water!However,there are still millions of people who have to walk for over half an hour to get clean water.Why is it so difficult for them to get clean water?Will we run out of ...
Do you know why the Earth is called the “Blue Planet”? Because up to 70% of its surface is covered by water! However, there are still millions of people who have to walk for over half an hour to get clean water. Why is it so difficult for them to get clean water? Will we run...
Well, I think that sort of discovery is pretty far in the future, but it is an eventual goal. 我想这类发现会是在遥远的未来,但这是最终的目标。 For now, the focus is on locating planets within a host star's so called "habitable zone", a zone that's a certain distance from its star...
II. Answer the questions.1. Why is the Earth Hour event held?It is to help the planet2. What can you switch on while you switch off the lights?The fun at home. 3. What are the outdoor activities for Earth Hour according to the passage?"Take in the Sights and Look at the Stars"...
Do you know why the Earth is called the "Blue Planet"? Because up to 70 percent of its 1. is covered by water! However, there' re still hundreds of millions of people who ...
The Earth is the third planet from the sun. Why is the Earth not too hot or too cold for life to exist? A. Because of its distance from the sun. B. Because of its size. C. Because of its atmosphere. D. Because of its rotation. 相关知识点: ...
根据“The Red Planet also has the largest dust storms(沙尘暴)in the solar system.”可知我们可以从第三段了解火星的天气情况。故选B。 (5)题详解: 细节理解题。根据“Earth is 10 times heavier than Mars. So The Red Planet’s gravity(重力)is only 37 percent as strong as Earth’s, meaning...
FEMALE STUDENT: So is Gliese 581e a more Earth-like planet? MALE PROFESSOR: Well, we have to consider its orbit.Gliese 581e orbits its host star in a much shorter period of time than the other planets in the system, meaning it's very close to the star. And therefore too hot for wa...
(4)Why is the Amazon rainforest called the lungs of the planet? A A. The rainforest fixes carbon and produces over 20percent of all the Earth's oxygen. B. The rainforest is the treasure house of species. C. The air in the rainforest is very clear to breathe. D. The rainforest ...