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托福official33听力conversation2 Write about genetic explanation of picky eaters原文解析+翻译音频

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[00:00.00]NARRATOR: Listen to a conversation between a student and his biology professor.[00:07.57]MALE STUDENT: Professor Landry?[00:09.90]FEMALE PROFESSOR: Hi, Dennis. You are right on time. [00:11.75]Come on in and have a seat.[00:13.04]MALE STUDENT: Great! Thanks.[00:16.57]FEMALE PROFESSOR: So like I told you in class, I just wanted to take a few minutes to meet with everyone to make sure your class presentations for next week are all in order and coming along well. [00:26.97]And as you know, you are supposed to report on some area of recent research in genetics, something, you know...original.[00:33.54]MALE STUDENT: Well, I think I found just the thing! [00:36.13]It actually occurred to me a couple nights ago while I was eating dinner in the cafeteria...[00:40.40]Tell me, Professor...do you like broccoli?[00:42.95]FEMALE PROFESSOR: Broccoli? You mean, the vegetable broccoli?[00:46.65]MALE STUDENT: Yeah.[00:47.39]FEMALE PROFESSOR: Well... I guess not really...[00:51.40]MALE STUDENT: Me neither. I have never liked it—or most other vegetables ,for that matter: brussels sprouts, asparagus, cauliflower—you name it. [00:58.86]They just taste bitter and...well,nasty to me.[01:02.16] My mother always called me a picky eater.[01:04.30]FEMALE PROFESSOR: O-kayyy...and?[01:06.64]MALE STUDENT: And so I got to wondering: I mean, I am obviously not the only person like this. [01:11.81]So is this just because of some, like trauma from our childhoods? [01:16.12]Some bad experience we've had with vegetables? [01:18.61]Or could there be some genetic explanation for why some people are picky eaters and others aren't?[01:23.98]FEMALE PROFESSOR: OK. I see. Well, I suppose it's a possibility.[01:28.13]MALE STUDENT: Actually, it turns out it's more than a possibility.[01:30.98] I started doing some research in the library that night and I found out that a biologist at the National Institutes of Health has been looking at that very question recently.[01:40.20]FEMALE PROFESSOR: Well, I guess that's not too surprising. [01:42.57]And this is great stuff actually. [01:45.27]So what's the verdict?[01:46.85]MALE STUDENT: Well, this guy seems to have discovered a particular gene that actually makes it possible for people to taste the bitterness in certain green vegetables. [01:54.92]But people who have a mutation in that gene cannot taste the bitterness.[01:59.15]FEMALE PROFESSOR: Well, that's certainly fascinating! [02:02.69]But...so this biologist is basically claiming that people who like to eat these vegetables actually have some sort of sensory deficit? [02:10.97]Sort of makes us picky eaters than normal ones, doesn't it? [02:14.66]I mean, that's kind of turning things on their head, isn't it?[02:17.48]MALE STUDENT: Well, then again, it wouldn't be the first time, would it? [02:20.69]Think of it this way: humans originally needed to have a stronger sensitivity to bitter-tasting foods so they could learn what plants were good for them and which ones might be poisonous. [02:30.59]But at some point, as people figured out what they could safely eat, this need became less crucial and a segment of the population lost that ability.[02:39.09]FEMALE PROFESSOR: OK. Well, you make a compelling case. [02:42.82]I can't wait to hear more about this when you deliver your report.

1.Why does the professor meet with the student?

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So, like I told you in class, I just wanted to take a few minutes to meet with everyone to make sure your class presentations for next week are all in order and coming along well. And as you know, you're supposed to report on some areas of recent research on genetics, something, you know, original.这次对话是教授主动叫学生来了解对方是否己经准备好了presentation。

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