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剑13Tset3雅思听力原文+题目+答案:Section 3

2020.07.20 17:47

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  Test 3- Section 3

  [00:45.21TUTOR: OK, Jim.

  [00:46.67You wanted to see me about your textile design project.

  [00:50.31JIM: That's right.

  [00:51.25I've been looking at how a range of natural dyes can be used to colour fabrics like cotton and wool.

  [00:57.54TUTOR: Why did you choose that topic?

  [00:59.67JIM: Well, I got a lot of useful ideas from the museum, you know, at that exhibition of textiles.

  [01:05.67But I've always been interested in anything to do with colour.

  [01:09.21Years ago, I went to a carpet shop with my parents when we were on holiday in Turkey, and I remember all the amazing colours.

  [01:16.51TUTOR: They might not all have been natural dyes.

  [01:19.32JIM: Maybe not, but for the project I decided to follow it up.

  [01:23.58And I found a great book about a botanic garden in California that specialises in plants used for dyes.

  [01:30.54TUTOR: OK.

  [01:31.42So, in your project, you had to include a practical investigation.

  [01:35.69JIM: Yeah.

  [01:37.10At first I couldn't decide on my variables.

  [01:40.05I was going to just look at one type of fibre for example, like cotton ...

  [01:44.41TUTOR: ... and see how different types of dyes affected it?

  [01:47.36JIM: Yes.

  [01:48.47Then I decided to include others as well, so I looked at cotton and wool and nylon.

  [01:54.13TUTOR: With just one type of dye?

  [01:55.87JIM: Various types, including some that weren't natural, for comparison.

  [01:59.75TUTOR: OK.

  [02:00.74JIM: So, I did the experiments last week.

  [02:04.01I used some ready-made natural dyes, I found a website which supplied them, they came in just a few days, but I also made some of my own.

  [02:12.79TUTOR: That must have taken quite a bit of time.

  [02:15.22JIM: Yes, I'd thought it'd just be a matter of a teaspoon or so of dye, and actually that wasn't the case at all.

  [02:22.54Like I was using one vegetable, beetroot, for a red dye, and I had to chop up a whole pile of it.

  [02:29.06So it all took longer than I'd expected.

  [02:31.74TUTOR: One possibility is to use food colourings.

  [02:34.58JIM: I did use one.

  [02:35.88That was a yellow dye, an artificial one.

  [02:38.41TUTOR: Tartrazine?

  [02:39.77JIM: Yeah.

  [02:39.94I used it on cotton first.

  [02:42.13It came out a great colour, but when I rinsed the material, the colour just washed away.

  [02:47.11I'd been going to try it out on nylon, but I abandoned that idea.

  [02:51.27TUTOR: Were you worried about health issues?

  [02:54.00JIM: I'd thought if it's a legal food colouring, it must be safe.

  [02:57.33TUTOR: Well, it can occasionally cause allergic reactions, I believe.

  [03:47.50TUTOR: So what natural dyes did you look at?

  [03:50.07JIM: Well, one was turmeric.

  [03:52.37The colour's great, it's a really strong yellow.

  [03:55.50It's generally used in dishes like curry.

  [03:58.56TUTOR: It's meant to be quite good for your health when eaten, but you might find it's not permanent when it's used as a dye - a few washes, and it's gone.

  [04:06.28JIM: Right.

  [04:07.60I used beetroot as a dye for wool.

  [04:10.32When I chop up beetroot to eat I always end up with bright red hands, but the wool ended up just a sort of watery cream shade.

  [04:18.27Disappointing.

  [04:18.73TUTOR: There's a natural dye called Tyrian purple.

  [04:21.92Have you heard of that?

  [04:22.71JIM: Yes.

  [04:23.10It comes from a shellfish, and it was worn in ancient times but only by important people as it was so rare.

  [04:30.41I didn't use it.

  [04:32.26TUTOR: It fell out of use centuries ago, though one researcher managed to get hold of some recently.

  [04:37.71But that shade of purple can be produced by chemical dyes nowadays.

  [04:41.47Did you use any black dyes?

  [04:43.40JIM: Logwood.

  [04:44.66That was quite complicated.

  [04:46.46I had to prepare the fabric so the dye would take.

  [04:49.15TUTOR: I hope you were careful to wear gloves.

  [04:50.81JIM: Yes.

  [04:51.48I know the danger with that dye.

  [04:52.96TUTOR: Good.

  [04:53.39It can be extremely dangerous if it's ingested.

  [04:55.80Now, presumably you had a look at an insect-based dye?

  [04:58.80Like cochineal, for example?

  [05:00.86JIM: Yes.

  [05:01.85I didn't actually make that, I didn't have time to start crushing up insects to get the red colour and anyway they're not available here, but I managed to get the dye quite easily from a website.

  [05:14.29But it cost a fortune.

  [05:14.89I can see why it's generally just used in cooking, and in small quantities.

  [05:19.71TUTOR: Yes, it's very effective, but that's precisely why it's not used as a dye.

  [05:24.05JIM: I also read about using metal oxide.

  [05:27.12Apparently you can allow iron to rust while it's in contact with the fabric, and that colours it.

  [05:32.92TUTOR: Yes, that works well for dying cotton.

  [05:35.55But you have to be careful as the metal can actually affect the fabric and so you can't expect to get a lot of wear out of fabrics treated in this way.

  [05:42.71And the colours are quite subtle, not everyone likes them.

  [05:47.08Anyway, it looks as if you've done a lot of work ...

  导师:好,吉姆。

  你想和我谈谈你的纺织品设计项目。

  吉姆:是的。

  我一直在研究如何用各种天然染料给棉花和羊毛等织物上色。

  导师:你为什么选择这个话题?

  吉姆:我从博物馆得到了很多有用的想法,你知道的,就是那个纺织品展览。

  但是我一直对任何与颜色有关的东西都感兴趣。

  几年前,我和父母去土耳其度假时去了一家地毯店,我记得那些所有令人惊艳的颜色。

  导师:他们可能并不都是天然染料。

  吉姆:也许不是,但为了项目,我决定继续研究这个话题。

  我还发现了一本很棒的书,是关于加利福尼亚的一个专门种植用于染料的植物园。

  导师:好的。

  所以,在你的项目中,你必须有一个实际的调查。

  吉姆:是的。

  一开始我无法决定变量。

  我只看一种纤维,例如棉花……

  导师:还要观察不同类型的染料如何影响它?

  吉姆:是的。

  然后我决定把其他的也包括进来,所以我观察了棉、羊毛和尼龙。

  导师:只用一种染料?

  吉姆:各种类型的。包括一些不是纯天然的染料来做比较。

  导师:好的。

  吉姆:所以,我上周做了实验。

  我用了一些现成的天然染料,我找到了一个销售网站,几天就收到了,但我也自己做了一些。

  导师:这一定会花相当多的时间。

  吉姆:是的,我认为这件事小菜一碟,实际上并非如此。

  我用了一种蔬菜,甜菜根,做红色的染料。我不得不把它整个切碎。

  所以花的时间比我预想的要长。

  导导师:有一种可能的方法是使用食品色素。

  吉姆:我用过一个。

  那是一种黄色染料,一种人造染料。

  导导师:柠檬黄?

  吉姆:是的。

  我先用在棉花上。

  它呈现的颜色很好,但当我冲洗材料时,颜色就被洗掉了。

  我本来打算在尼龙上试试,但我放弃了这个想法。

  导师:你担心健康问题吗?

  吉姆:我想如果这是一个合法的食用色素,它必须是安全的。

  老师:嗯, 我相信它有时也会引起过敏反应。

  导师:那么你在考虑哪些天然染料?

  吉姆:嗯,一个是姜黄,

  颜色很好,是一种很深的黄色。

  它通常用于像咖喱这样的菜肴中。

  导师:食用时,它似乎对你的健康很好,但你可能会发现用作染料时,它不是永久性的,经过几次冲洗,它就掉色了。

  吉姆:是的。

  我用甜菜根作羊毛的染料。

  当我切甜菜根吃的时候,我的手总是红彤彤的,但是羊毛最后变成了一种稀奶油色。

  令人失望。

  导师:有一种叫做泰尔红紫的天然染料。

  你听说过吗?

  吉姆:听说过。

  它来自一种贝类,在古代因为它非常罕见,只有重要人物才能穿这种颜色。

  我没有用过它。

  导师:几个世纪前它不用了,尽管最近一位研究人员设法找到了一些。

  但是现在那种紫色的色度可以用化学染料染出来。

  你用过黑色染料吗?

  吉姆:洋苏木。

  这种染料使用相当复杂。

  我需要提前处理好布料,这样染料才能上色。

  导师:我希望你小心,要戴手套。

  吉姆:好的。

  我知道那种染料有危险。

  导师:很好。

  如果你摄入它,会非常危险。

  现在,也许你考虑过一种昆虫染料?

  比如说胭脂红?

  吉姆:是的。

  我并没有做那个,我没有时间去碾碎昆虫来得到那种红色,这不容易实现,但是我很容易地从一个网站上得到了染料。

  但它花了我一大笔钱。

  我可以理解为什么人们只在烹饪中少量地使用这种染料了。

  导师:是的,它非常有效的,但这正是为什么不被用作染料的原因。

  吉姆:我也读过关于使用金属氧化物的相关读物。

  很明显,当铁接触织物时,会让它生锈,从而使织物变色。

  导师:是的,它适用于染棉质织物。

  但是你必须小心,因为金属会影响织物,所以不要期待通过这种方法染出的织物的还能很耐用。

  并且织物的颜色很微妙,不是每个人都喜欢。

  总之,看起来你做了很多工作……

  SECTION 3 Questions 21-30

  Questions 21-24

  Choose the correct letter, A, B or C.

  Project on using natural dyes to colour fabrics

  21 What first inspired Jim to choose this project?

  A textiles displayed in an exhibition

  B a book about a botanic garden

  C carpets he saw on holiday

  22 Jim eventually decided to do a practical investigation which involved

  A using a range of dyes with different fibres.

  B applying different dyes to one type of fibre.

  C testing one dye and a range of fibres.

  23 When doing his experiments, Jim was surprised by

  A how much natural material was needed to make the dye.

  B the fact that dyes were widely available on the internet.

  C the time that he had to leave the fabric in the dye.

  24 What problem did Jim have with using tartrazine as a fabric dye?

  A It caused a slight allergic reaction.

  B It was not a permanent dye on cotton.

  C It was ineffective when used on nylon.

  Questions 25-30

  What problem is identified with each of the following natural dyes?

  Choose SIX answers from the box and write the correct letter, A-H, next to Questions 25-30.

Problems

A  It is expensive.

B  The colour is too strong.

C  The colour is not long-lasting.

D  It is very poisonous.

E  It can damage the fabric.

F  The colour may be unexpected.

G  It is unsuitable for some fabrics.

H  It is not generally available.

  Natural dyes

  25 turmeric __________

  26 beetroot __________

  27 Tyrian purple __________

  28 logwood __________

  29 cochineal __________

  30 metal oxide __________

  Section 3, Questions 21-30

  21 C

  22 A

  23 A

  24 B

  25 C

  26 F

  27 H

  28 D

  29 A

  30 E

  以上就是小编为烤鸭们整理的“剑13Tset3雅思听力原文+题目+答案:Section 3”的全部内容,希望同学们能够认真学习剑桥雅思真题,早日和雅思说分手,更多剑桥雅思真题相关备考材料内容,欢迎随时关注新东方在线雅思网。




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