举一反三
- __ warming has become a common issue of all the human beings. A: Weather B: Global C: Environment D: Atmosphere
- What are the major threats to ecosystem function ? A: Global warming B: Environmental pollution C: Loss of species diversity D: All the above
- Global Warming Global warming A mix of ______________ and irregular climate change Cause of global warming ________________: carbon dioxide, water vapor, and methane ________________: using forests as fuel, for building, furniture, etc. The use of __________________ on crops _____________________ Effects of global warming Destruction of important _______________________ systems Loss and endangement of many ___________________________ _______________________________________ Solutions to global warming To reduce gases put into atmosphere Be more _______________, use wind and solar power etc. To in crease greenhouse gases taken out of the atmosphere Planting trees Making changes to the _____________________________
- 中国大学MOOC: The main types of water pollution are two kinds, which are pollution.
- Which is an example of climate change? A: reforestation B: global warming C: air pollution
内容
- 0
中国大学MOOC: Global warming is an (3) ________ serious problem facing the world today.
- 1
We can cut down global warming pollution by increasing our reliance on renewable energy source such as______.
- 2
全球环境问题不包括（ ） A: global warming B: biodiversity C: Ozone Layer D: Human Trafficking
- 3
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
- 4
中国大学MOOC: Most scientists in the world today firmly believe the effective means to stop global warming is to reduce emissions of air _____.