1. he, become, has, active, in the past, more, 10 years (.) (连词成句)
2. I will no longer buy wooden chopsticks. (变为同义句)
I won't buy wooden chopsticks .
3. 在事情变糟之前必须采取行动。(完成译句)
should be before things get worse.
4. So far he has made great progress. (变为否定句)
So far he great progress.

1. He has become more active in the past 10 years.
2. any longer
3. Action; taken
4. hasn't made

Ⅳ任务型阅读。
Our group wanted to know how much our young people knew about this problem and whether they realized the situation of our environment. So we made a survey of them.
This survey was mainly about many different environmental problems in China and the situation of the polluted environment. The questions in the questionnaire could be divided into two parts. One was mainly about some knowledge of the environmental problems in China, the other was about environmental awareness.
From the results of the questionnaire, we can see our young people's environmental awareness needs to be raised and they are short of the knowledge of the environment. It's really worrying.
1. Did the group want to know how much young people know about this problem?
2. How many parts are there in the questionnaire?
3. What's the survey mainly about?
4. As middle school students, what can we do to raise people's environmental awareness?

1. Yes, they did.
2. Two parts.
3. Many different environmental problems in China and the situation of the polluted environment.
4. We can tell people around us the importance of environmental protection, take part in environmental protection activities, and set a good example in daily life like saving water and electricity, reducing waste, etc.