Recording 49
录音49
You will hear two students discussing an assignment.
你将听到两名学生正在讨论一项作业。
First, you have some time to look at questions 21 to 25.
首先，你有些时间看看第二十一题至第二十五题。
Hi, Melanie, what did you think of the assignment that we got today? It looks interesting, doesn't it?
你好，梅勒妮，你觉得今天给我们布置的那份作业怎么样？挺有趣的，不是吗？
Yes, Alan, I've always been interested in recycling but there's a lot of research to do...
没错，艾伦，我一直对回收资源很有兴趣，但这得做大量调研……
Yes, there are a lot of things I'm unsure of, so it's going to be good working with you.
对，很多东西我都不确定，所以能与你合作可真是件好事。
OK. Well, why don't we start by making a flow chart from the notes our tutor gave us?
好。我们为何不先开始做个流程图呢？可根据导师给我们的笔记来做。
Yes, um, so... On one side we could have the paper production cycle - here on the left - and on the other side the recycling.
好，在这一边我们可以做纸张生产流程，就在左边，另一边做回收利用流程。
Good idea. Let's start at the top with the production. The first step in the process is to get the raw materials.
好主意。从顶上开始做生产流程吧。第一步是获取原材料。
Yes, and they tend to come from pine forests.
好，一般原材料都来自松树林。
OK. And then the bark is removed from the outside of the tree and after that the wood is chopped up.
好。接着会将树木外层树皮除掉，然后把木头切碎。
That's the first three stages.
这是最开始的三个步骤。
It sounds a bit complicated after that. Um, it says water is added and then the mixture is heated and made into pulp.
之后的步骤看起来有点复杂。这里说，要加水，
This will be the thick paste that is used to make paper.
然后加热混合物制成纸浆。
Yes, you're right, because after that they use a machine to make the paper and we can put that right in the centre of the flow-chart because it's also where the recycled paper joins the process.
你说得没错，因为在这之后会用机器造出纸张，我们可以把这个步骤放在流程图中间，因为也正是在这一步再生纸加入整个流程。
Yes. So once the paper has been produced in the machine, what happens then?
对。一旦在机器中生成了纸张，接下来会发生什么呢？
Well, I think we should write "print" as the next step because this is when newspapers, magazines, etc. are produced.
我认为我们下一步应该写“印刷”，因为这一步是生产报纸和杂志等等的印刷品的。
And we could also add that they have to be distributed to stores and people's homes.
我们还能补充一下，纸张得配送到商店和百姓家庭中。
Right, then the recycling bit starts. The old paper's collected and then it says it's taken somewhere so that someone or something can sort it.
对，然后回收利用过程开始了。先收集废旧纸张，接着这里说要把收集到的纸张送到某个地方，让某些人或机器进行筛选。
I imagine there are different kinds of paper or things like paper clips that need to be removed.
我想，有很多不同的东西是要被筛选除掉的，像回形针之类。
Yes. Let's have a step after that. Now, how did our tutor say they do this? Oh, yes, it involves chemicals. So, how is your chemistry?
对。我们在后面补上这一步吧。导师关于这一步的做法说了什么？噢，对，这涉及到化学知识。你的化学学得怎么样？
Well, not very good I'm afraid. But this is how they remove ink, so... This is definitely going to need a bit of research.
恐怕不是很好。这里说的是工作人员怎么去除墨水……这得做一些资料搜查。
Right. The last step in the recycling section is similar to the last step in the production process with heating and pulping before the cycle begins again.
没错。回收利用的最后一步和生产的最后一步类似，都是要加热制成纸浆，接着又开始新的一个循环。