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   上海新航道雅思小编给考生们带来了剑7Test4雅思听力Section4答案解析，希望帮助考生对照文本更好的研究真题，充分备考，争取理想成绩，实现留学梦想。

  剑7Test4雅思听力Section4答案解析

  SECTION 4

  场景介绍

  主题：MSG (Monosodium Glutamate)谷氨酸钠(味精)的由来、作用方式及实质

  题型介绍

  题型 选择题，笔记填空题

  测试技能 听大意，听具体信息

  名师点题剑桥雅思7听力：考题精解

  Question 31 B

  当听到发言人说Today I am going to explore why it is so ...就要留意了，接着听到more importantly这一信号表达，确定答案就是后一句how does it enhance the flavour of food?中，而这一句含义等同于B选项，确定答案是B。

  Question 32 C

  1908是定位词，听到它后，接着听到the ingredient in Japan ... was actually discovered to be glutamate by scientists working there，discover与C选项中的identify是同义词，判定正确答案为C。

  Question 33 A

  1956是定位词，听到1956后，接着听到the speed of the process was improved，and industrial production increased dramatically, manufacture与produce同义，确定正确答案为A。

  Question 34 water

  当考生听到sodium之后，紧接着听到nine point six percent water, 9.6%是定位词，确定Question 34正确答案是water。

  Question 35&36 meat, cheese

  当发言人讲到protein-containing foods时，立即定位Question 35&36，接着听到so this includes food such as meat and cheese，确定答案是meat，cheese。

  Question 37 5th / new taste

  当听到In 1908，立即定位此题，接着听到Kikunae Ikeda identified a fifth taste。而identify与discover属于同义词，确定正确答案是5th/ new taste。

  Question 38 common

  演讲者提到It does make perfect evolutionary sense that we should have the ability to detect or taste glutamate ...确定Question 38的答案在后面。接着听到because it is the amino acid which is most common in natural foods. So与Most同义，in natural foods与naturally同义，Question 38需要填一个形容词，正确答案为common。

  Question 39 bitterness

  当考生听到carbohydrates后，紧接着听到bitterness, he says, alerts us of toxins in the food。确定正确答案是bitterness。

  Question 40 minerals

  当听到saltiness后立即定位于Question 40，紧接着听到signals the presence of minerals。确定正确答案是minerals。

  以上就是小编为大家带来关于《剑桥雅思7真题》听力供大家参考，新航道雅思资料频道将第一时间为考生发布最全、最新、最专业的雅思资讯及雅思考试资料及机经.

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