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1. carry out 开展，执行
e.g. No matter what difficulty you will meet with, carry out your plan.?
2. percentage n. 百分率，百分数
e.g. Percentage of students who would like to move away from the earth is 50%.?
3. disadvantage n. 缺点，不利条件
e.g. The disadvantage of living on Mars。
4. risk n. 风险
e.g. I’m not sure if it’s worth the risk.
5. after all 毕竟
e.g. After all, people have already been to the Moon.
Learn this part together and ask students to try to remember them.
Step 4 Practice
Daniel wants to live on Mars in the future. However, Sandy is still not sure if she would like to. This week, there is a TV programme on this topic. Listen to the preview. Help Sandy make notes of it.
2. Sandy is watching the TV programme. She wants to write down the important points. Listen to the discussion and help her complete her lists.
Step 5 Explanation
Explain some important points
started with It showed that move away from much more
Step 6 Work in groups
Daniel and Sandy are talking about the TV programme.. Complete their conversation with the information in Parts A 1 and A 2.
Step 7 Discussion
How do we protect the Earth?
Step 8 Speak up
1. Daniel and Sandy are talking about living on Mars. Work in pairs and discuss whether you would like to live on Mars. Use the conversation below as a model.
2. Listen to the conversation and answer the questions.
1. Would Sandy like to live on Mars? Why?
2. Would Daniel like to live on Mars? Why?
Step 9 Writing.(a part of homework)
Where do you prefer to live, Mars or Earth? Why?
Give Useful information: for example:
online schools /much more space