托福听力30天备考计划之第3天备考计划

2022-06-04 05:37:27

  

  单句听写学习方法操作:

  1. 听写全文;单句:要求每个句子在听三遍以后写下来

  2. 听写之后对比,找出错误原因

  3. 跟读全文,背诵场景词汇

  4. 熟读全文2遍

  5. 加速听原文3遍

  6. 常速听一遍

  7. 脱稿录音(不看原文做单句重复)

  Day 3rd 听力学习TPO3 中最难的一篇Lecture4分析

  本文难点:复杂的场景词汇和生僻的背景知识;

  听力内容:光谱学用于鉴定艺术作品或考古发现;物质元素鉴定

  how astronomers identify the chemical element in a star

  文章结构如下:

  1)开篇引出主题对象:spectroscopy(spectrum; spectral;)

  Now astronomy didn’t reallybloom into the science it is today until the development of spectroscopy. 注意下定义解释:信号词basically (用于下定义)解释spectroscopy:light决定chemical composition

  Spectros copy is basically the study of spectra and spectral lines of light, and specifically for us, the light fromstars.

  2)中途暂停,回顾过去:back up a bit

  Before we get into that though, it’sprobably a good thing to back up a bit.

  过渡信号(互问互答-考点)

  3)Anyone want to takea stab at the scientific term for visible light? And I’m sure all of you know this because you all did the reading for today.多次问答最后重点总结:(标志词so)

  Each pattern stands for a distinct chemical element, and so different sets or patterns of spectral lines mean that the starhas a different chemical composition.

  4)最后重点:了解flame test: to cause anelement to emit light

  本文词汇及相关补充

  spectroscopy光谱学; Spectra谱,光谱,频谱;范围,幅度;

  Emit; prism n.棱镜;(结晶)柱; a beam ofsunlight;

  Spectrum-continuous band of rainbow colors;

  Optical radiation; Uranium; Violet; Magnify; Flametest;

  Spectrograph; Helium; break up(散开);compile

  Back up a bit

  Match up(component/composition); bloom蓬勃发展; be exposed to

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