Decide if these sentences are right or wrong. (News from the future 1 )
1.“The critical figure” means there is too much CO2 in the earth.
1.“The critical figure” means there is too much CO2 in the earth.
举一反三
- The Earth is surrounded by an ocean of gases we call the atmosphere. The atmosphere is important because it contains the air most living things breathe. It also absorbs heat energy from the sun. It even recycles water by returning it back to the Earth as rain. Without the atmosphere, life as we know it could not exist on Earth. The atmosphere is important for the single reason that most living things need to breathe on Earth. A: Right B: Wrong C: Not mentioned
- 1 One word is wrong in each sentence. Cross it out and write the correct word. ► The sun circles the earth. moon 1 The planets are in the solar space. ____ 2 The earth revolves around the moon. ____ 3 The sun is a planet. ____ 4 Man first walked on the sun in 1969. ____ 5 Venus is a star. ____ 6 We can send planes into space. ____ 7 The stars are part of the earth. ____
- Exercise 1. Questions 1 to 2 will be based on the following news item.
- In News Item 1, the phrase “in a row” means ______.
- 现在CO和CO2两种气体，它们所含氧原子的物质的量均为1mol，则CO与CO2的分子数之比为 A: 1：1 B: 1：2 C: 2：1 D: 3：2