Question 3 is based on the news report you have just heard.

听力原文：

    (3) Last week, France announced that the country will pave 621 miles of road with solar panels over the next five years, with the goal of providing cheap, renewable energy to five million people.

    Called “the Wattway” the roads will be built through joint efforts with the French road-building company Colas and the National Institute of Solar Energy. The company spent the last five years developing solar panels that are only about a quarter of an inch thick and are strong enough to stand up to heavy highway traffic without breaking or making the roads more slippery. The panels are also designed so that they can be installed directly on top of existing roadways, making them relatively cheap and easy to install.

    France isn’t the first country to kick around the idea of paving its roads with solar panels. In November 2015, the Netherlands completed a 229-foot-long bike path paved with solar panels as a test for future projects. (4) However, this is the first time a panel has been designed to be laid directly on top of existing roads and the first project to install the panels on public highways.

3. What was France’s purpose of constructing the Wattway?

解析：C。本题为细节题。问题为：法国建造瓦特路的目的是什么？根据原文“Last week, France announced that the country will pave 621 miles of road with solar panels over the next five years, with the goal of providing cheap, renewable energy to five million people.”，可知上周法国宣布未来五年内将在621英里的道路上铺设太阳能板，目的在于为五百万人提供价格低廉、可再生的能源。选项C)Providing clean energy to five million people与原文相一致，可再生能源属于清洁能源。