Though challenged by many people, Aczel firmly believes that ______.
A: about 1 million planets in our galaxy are suitable for life
B: it is very likely for life to exist on other planets
C: life exists in approximately 150 billion stars in our galaxy
D: there are a very large number of planets suitable for life
A: about 1 million planets in our galaxy are suitable for life
B: it is very likely for life to exist on other planets
C: life exists in approximately 150 billion stars in our galaxy
D: there are a very large number of planets suitable for life
举一反三
- What kind of planet elsewhere in the universe can support life A: Those double stars' planets. B: Those planets much hotter than our earth. C: Those planets similar to the earth. D: Those planets very close to their suns.
- 4. Science assures that highly evolved beings ____________ exist on the stars and planets around us, if life is common in the universe.
- Are there any ______for believing that there is life on other planets A: facts B: bases C: grounds D: foundations
- In the sentence, “Never too busy for the wonder and the awe of life”(Paragraph 8) , the author tries to tell us that ____. A: we should respect and embrace every moment of our life B: we should enjoy our life to the most C: we should be very cautious about our life D: we should feel amazed and thankful for the life
- Can you imagine ______? A: what will our life be like? B: what our life will be C: how our life will be like D: what our life will be like