雅思听力在考试中占据着重要的地位，时常用听力材料来磨耳朵可以不断巩固大脑的英语语言能力。以下是雅思听力材料，您可以结合MP3和下方的原文及翻译进行听力学习。

听力原文及翻译

A: Okay, Rosie, shall we try to get some ideas together for our presentation on diet and obesity?

A：好的，Rosie，我们一起想一些关于饮食和肥胖的演讲创意吧？

B: Sure.

B：当然。

A: I can talk about the experiment I did to see if people can tell the difference between real sugar and artificial sweeteners.

A：我可以谈谈我做过的实验，看看人们是否能分辨出真糖和人造甜味剂的区别。

B: Where you gave people drinks with either sugar or artificial sweeteners, and they had to say which they thought it was. 

B：你给人们喝加糖或人造甜味剂的饮料，他们必须说出他们认为是哪种。

A: Yeah, it took me ages to decide exactly how I'd organize it, especially how I could make sure that people didn't know which drink I was giving them. It was hard to keep track of it all, especially as I had so many people doing it, I had to make sure I kept a proper record of what each person had had.

A：是的，我花了很长时间才决定如何组织它，特别是如何确保人们不知道我给他们喝的是哪种饮料。很难跟踪所有事情，尤其是因为有这么多人这样做，我必须确保我妥善记录每个人喝了什么。

B: So, could most people tell the difference?

B：那么，大多数人能分辨出区别吗？

A: Yeah. I hadn't thought that they would be able to, but most people could.

A：是的。我没想到他们能做到，但大多数人都能做到。

B: Then, there's that experiment I did, measuring the fat content of knots to see if the nutritional information given on the packet was accurate.

B：然后，我做了一个实验，测量了面包中的脂肪含量，看看包装上给出的营养信息是否准确。

A: The one where you ground up the nuts, and mix them with a chemical to absorb the fat.

A：就是把坚果磨碎，然后和化学物质混合以吸收脂肪。

B: Yes. My results were a bit problematic, the fat content for that type of knot seemed much lower than it said on the package. But I reckoned the package information was right, I think I should probably have ground up the knots more than I did. It's possible that the scales for weighing the fat weren't accurate enough, too. I'd really like to try the experiment again some time.

B：是的。我的结果有点问题，这种结的脂肪含量似乎比包装上标的要低得多。但我认为包装上的信息是正确的，我想我应该把结磨得更碎一些。称脂肪的秤也可能不够准确。我真的很想有时间再试一次这个实验。

以上就是本期的雅思听力练习，希望对您的听力水平有所帮助。您也可以访问网站主页，获取最新的英语学习资料，全方位提升英语能力。还可以加入听力课堂官方QQ群（243171310），与英语学习者共同交流！