2 where的语法作用

Avoid the supermarket aisles piled with cheese, quiches and pies. That’s the message of an analysis that found they fare worst for nutritional quality and environmental impacts among thousands of food and drink products sold in the UK. And if your priority is curbing carbon emissions and water use, avoid the meat and fish shelves too.

So far, most studies assessing the environmental footprint of food have focused on the impact of agricultural commodities such as beef or soya, rather than the lasagnas, tofu and other products that shoppers often buy. Where research has focused on consumer products, it has usually been for a small number of them.

请教老师:粗体字句子句首词where在文中的的语法作用。

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最佳答案 2023-11-17 21:50

Where research has focused on consumer products, it has usually been for a small number of them.

=In the situation where research has focused on consumer products, it has usually been for a small number of them.

备注:where引导状语从句,where=in the situation where表示在...情况下。后面是主句内容,主句的主语it指代research.

从句:where research has focused on consumer products,

主句:it has usually been for a small number of them.

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  • 尤海林   提出于 2023-11-17 17:30

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