Directions: In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is idented by a ...
Earth is the fifth largest planet in the solar system. In his book "Pale Blue Dot: A Vision of the Human Future in Space" (Random House, 1994), astronomer and science communicator Carl Sagan once beautifully summed up how "big" Earth is for humanity. "That's home. That's us," Sag...
2. What is the shape of the universe? 宇宙的形状是怎样的? 3. Where did the big bang start? 大爆炸从何处开始? 4. Why don't the orbits of planets decay and cause them to crash into each other? 为什么行星的轨道不衰减并导致它们相互碰撞? 5. When will the universe die? Will it contin...
On and on thelist goes, with every minor shift adding to the pile. What this book does sowell is illustrate the growth of that pile; while any individual item might beno big deal, the collected set is significant. I...
29-Give Thanks For Each Day 《感谢每一天》 30-The Doorbell Rang《门铃响了》 31-Biscuit Visits the Big City 《小饼干去大城市》 32-It's Okay to Be Different 《不一样没关系》 33-Ten Black Dots《十个小黑点》 36-Shopping《购...
2. What is the shape of the universe? 宇宙的形状是怎样的? 3. Where did the big bang start? 大爆炸从何处开始? 4. Why don't the orbits of planets decay and cause them to crash into each other? 为什么行星的轨道不衰减并导致它们相互碰撞?
How volcanoes shaped our planet — and why we need to be ready for the next big eruptionVolcanologyGeologyGeophysicsSolid Earth sciencesThe world should learn from past disasters and prepare for the effects of future, inevitable volcanic catastrophes, a wide-reaching book teaches us.#The world ...
C) 41) Recent years have seen a big change in our view of forests. Peter Wohlleben’s book The Hidden Life of Trees (2015), an international bestseller, suggests that trees can warn each other of danger through a ‘wood wide web’ of roots and fungi (真菌). They support each other ...
"From students to CEOs,How to Save Our Planethas something for everyone when it comes to the fight to save our planet. From the big bang to the future of our fast-warming world, Mark takes us at breakneck speed through the ways humanity is shaping the planet, and presents with amazing ...
We let out too much exhaust gas that our atmosphere is no longer clear and health for breath.In many big cities,we can hardly see a bright blue sky. We use as much resourse as we can find,then turn them into rubbish.These rubbish is taken up more and more space in our planet. ...