【Native Speaker每日综合训练—45系列】【45-17】科技

Jiayouqin

谢谢Going!

Speaker:
Main idea: we can change mood by walking in a more up-beat fashion.

Speed:
T2: 2’05’’
T3: 2’30’’
T4: 1’05’’
Main idea: the author explains why companies in US do advertising to general public during the WWII, even they could not sell to the public directly, and also the reason why companies were willing to cooperate with government agency during the war. Several main reasons are: 1) the companies wanted public to remember them. 2) They wanted to give people the impression of “patriotic” and participation in the war. 3) They believed that public will buy a lot of goods after the war. 4) They want to save their reputations from the Great Depression.

T5: 2’07’’
T6: 2’23’’
感觉有好几个看不懂的关键词儿在那里 (举例wobble, dune), 整个文章就晕晕乎乎的. 请问大家: 遇到这种情况该咋整?

Obstacle: 8’10’’

Main idea: with the increased demand for biomass, wood pellets, as fuel for generating electricity/ heating source in Europe, the debates between environmental protection organizations and the industry that produces wood pellets get hotter. It is difficult to draw conclusions since the carbon emission is hard to measure, and it takes time to measure the economic and ecological impact of wood pellets as an energy source.