The atmosphere consists of _________.
A: contains a layer of ozone gases.
B: about 42 degrees colder than on the ground.
C: 21% oxygen by weight.
D: less than 1% of xenon by volume
E: about 75 degrees colder than in Interlaken
F: is warmed by the earth’s heat.
A: contains a layer of ozone gases.
B: about 42 degrees colder than on the ground.
C: 21% oxygen by weight.
D: less than 1% of xenon by volume
E: about 75 degrees colder than in Interlaken
F: is warmed by the earth’s heat.
举一反三
- Life as we know exists on the earth because the atmosphere _________. A: contains a layer of ozone gases. B: about 42 degrees colder than on the ground. C: 21% oxygen by weight. D: less than 1% of xenon by volume E: about 75 degrees colder than in Interlaken F: is warmed by the earth’s heat.
- ---It’s so hot today.-It surely is. It’s ___yesterday. A: two degrees hotter than B: two degrees as hot as C: two degree hotter than D: as two degrees hot as
- It's colder in Tianjin than Beijing, though Tianjin is further to the south and nearer to the sea.
- what the analogy is: which two things are being compared?The earth’s atmosphere is like a blanket of gases around the earth. It is only a thin layer but it helps to maintain the temperature of the earth, keeping us warm. It also offers a layer of protection from the intensity of the sun. A: earth’s atmosphere and a blanket B: earth’s atmosphere and gases C: earth’s atmosphere and a layer of protection D: earth’s atmosphere and a blanket of gases
- According to the passage, there are more myths about the common cold than any other human disease because ______. A: it spreads more quickly B: it is the most widespread illness C: the climate of the world is getting colder and colder D: few people can catch colds