zeros.D. A decimal point followed by 29 zeros.2. According to Paragraph 3, we can learn that _____.2. According to Paragraph 3, we can learn that _____.A. there were no large numbers in ancient timesA ……

拯救《我们的星球》PAGE 8A new documentary explains how we have harmed our planet.What do we need to do to save Earth before it is too late? ……

do we know about JUICE?1. What do we know about JUICE?A. It will collect data from Jupiter and its... on other planetsA. be common to see on other planetsB. have been ejected from the planet into space  ……

’t have any smell. The earthy smell comes from microbes (微生物) in the soil. Microbes have their own job... rain 瓢泼大雨Have a goTrue or falseThe rain itself has an earthy smell. ( )Microbes in the soil work ……

Keeping our Earth safe (P6)Keeping our Earth safe (P6)Answer the questions:Answer the questions:1... a movie.A. To make a movie.B. To break up the asteroid.B. To break up the asteroid.C. To avoid Earth ……

About 1 million (百万) Earths could fit (装进) inside the sun. ……

为什么我们能闻到雨的味道？When summer rain falls to the hot and dry ground, many of us believe that we can actually smell the rain. But in fact, rain itself doesn’t have any smell. So why do we think we can smell ……

cultures have a lot in common.We happened to discover we had a friend in common.We happened... is mentioned  提起某人。用法：mention sth (to sb) (向某人) 提起某事或某物；someone is mentioned  提起某人。I may not have ……

swim down to see the fish and plants. We'll have fun in three ocean parks (海洋公园). Let's go! The Earth...水蓝色的星球Big fish, small fish,they all have the same (同一个) home.It's big, it's blue. Its name ……

have 206 bones. But this is not always true. Babies are born with more than 300 bones. As we grow... bonesMost textbooks say humans have 206 bones. But this is not always true. Babies are born with more ……

were tested.5. What can we learn about the lunar bricks from the passage?5. What can we learn about... are still unhappy with the bricks. B. A base built by lunar bricks was made on Earth.B. A base ……

money to spot and prevent asteroids (小行星) now, one might crash into Earth and destroy life as we... rocks. By the time we spot a fatal one, the scientists say, we'll have a way to change its course ……

in the universe.Solar systems such as Earth's, in which planets orbit a star, have been discovered... have worked out how to predict which of the newly discovered solar systems is likely to harbour Earth ……

in the world this year. Recently, scientists have picked out the most livable alien worlds. Saturn.... First is whether Earth-like conditions (条件) can be found. The second measure is if the conditions ……

TOPIC: Some people believe that human activities have harmed the Earth, while others think... have harmed our environment. If they had not, why would we be facing so many environmental disasters ……