剑13Tset1雅思听力原文：Section 3
2020.07.14 18:31
提到雅思备考，我们最先想到的就是剑桥雅思真题，剑桥雅思真题作为雅思备考中的热门教材，一直以来深受广大考生追捧。今天新东方在线小编就给大家整理了剑13Tset1雅思听力原文：Section 3，希望能都帮助大家更好的备考雅思考试，更多剑桥雅思真题原文、题目及答案解析相关内容，欢迎随时关注新东方在线雅思网。
| Test 1-Section 3 | ||
| [00:59.43 | Emma: We've got to choose a topic for our experiment, haven't we, Jack? | |
| [01:04.52 | Were you thinking of something to do with seeds? | |
| [01:07.36 | Jack: That's right. | |
| [01:09.11 | I thought we could look at seed germination - how a seed begins to grow. | |
| [01:14.30 | Emma: OK. | |
| [01:15.48 | Any particular reason? | |
| [01:17.44 | I know you're hoping to work in plant science eventually ... | |
| [01:20.73 | Jack: Yeah, but practically everything we do is going to feed into that. | |
| [01:25.33 | No, there's an optional module on seed structure and function in the third year that I might do, so I thought it might be useful for that. | |
| [01:35.79 | If I choose that option, I don't have to do a dissertation module. | |
| [01:40.83 | Emma: Good idea. | |
| [01:42.20 | Jack: Well, I thought for this experiment we could look at the relationship between seed size and the way the seeds are planted. | |
| [01:51.19 | So, we could plant different sized seeds in different ways, and see which grow best. | |
| [01:57.71 | Emma: OK. | |
| [01:59.19 | We'd need to allow time for the seeds to come up. | |
| [02:02.03 | Jack: That should be fine if we start now. | |
| [02:04.87 | A lot of the other possible experiments need quite a bit longer. | |
| [02:10.09 | Emma: So that'd make it a good one to choose. | |
| [02:13.52 | And I don't suppose it'd need much equipment; we're not doing chemical analysis or anything. | |
| [02:20.44 | Though that's not really an issue, we've got plenty of equipment in the laboratory. | |
| [02:25.60 | Jack: Yeah. | |
| [02:25.89 | We need to have a word with the tutor if we're going to go ahead with it though. | |
| [02:31.14 | I'm sure our aim's OK. | |
| [02:33.63 | It's not very ambitious but the assignment's only ten percent of our final mark, isn't it? | |
| [02:40.77 | But we need to be sure we're the only ones doing it. | |
| [02:44.87 | Emma: Yeah, it's only five percent actually, but it'd be a bit boring if everyone was doing it. | |
| [02:52.16 | Jack: Did you read that book on seed germination on our reading list? | |
| [02:56.59 | Emma: The one by Graves? | |
| [02:58.73 | I looked through it for my last experiment, though it wasn't all that relevant there. | |
| [03:04.12 | It would be for this experiment, though. | |
| [03:06.76 | I found it quite hard to follow - lots about the theory, which I hadn't expected. | |
| [03:12.69 | Jack: Yes, I'd been hoping for something more practical. | |
| [03:17.36 | It does include references to the recent findings on genetically-modified seeds, though. | |
| [03:23.20 | Emma: Yes, that was interesting. | |
| [03:25.26 | Jack: I read an article about seed germination by Lee Hall. | |
| [03:29.52 | Emma: About seeds that lie in the ground for ages and only germinate after a fire? | |
| [03:35.06 | Jack: That's the one. | |
| [03:36.64 | I knew a bit about it already, but not about this research. | |
| [03:41.78 | His analysis of figures comparing the times of the fires and the proportion of seeds that germinated was done in a lot of detail - very impressive. | |
| [03:53.01 | Emma: Was that the article with the illustrations of early stages of plant development? | |
| [03:58.79 | They were very clear. | |
| [04:00.48 | Jack: I think those diagrams were in another article. | |
| [04:45.69 | Emma: Anyway, shall we have a look at the procedure for our experiment? | |
| [04:50.01 | We'll need to get going with it quite soon. | |
| [04:52.38 | Jack: Right. | |
| [04:53.63 | So the first thing we have to do is find our seeds. | |
| [04:58.17 | I think vegetable seeds would be best. | |
| [05:01.43 | And obviously they mustn't all be the same size. | |
| [05:05.48 | So, how many sorts do we need? | |
| [05:08.64 | About four different ones? | |
| [05:10.90 | Emma: I think that would be enough. | |
| [05:12.72 | There'll be quite a large number of seeds for each one. | |
| [05:16.67 | Jack: Then, for each seed we need to find out how much it weighs, and also measure its dimensions, and we need to keep a careful record of all that. | |
| [05:27.42 | Emma: That'll be quite time-consuming. | |
| [05:30.02 | And we also need to decide how deep we're going to plant the seeds - right on the surface, a few millimetres down, or several centimetres. | |
| [05:39.25 | Jack: OK. | |
| [05:40.30 | So then we get planting. | |
| [05:42.53 | Do you think we can plant several seeds together in the same plant pot? | |
| [05:47.61 | Emma: No. | |
| [05:48.57 | I think we need a different one for each seed. | |
| [05:51.66 | Jack: Right. | |
| [05:53.52 | And we'll need to label them - we can use different coloured labels. | |
| [05:58.07 | Then we wait for the seeds to germinate - I reckon that'll be about three weeks, depending on what the weather's like. | |
| [06:06.63 | Then we see if our plants have come up, and write down how tall they've grown. | |
| [06:12.06 | Emma: Then all we have to do is look at our numbers, and see if there's any relation between them. | |
| [06:17.24 | Jack: That's right. | |
| [06:17.89 | So ... | |
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