4. What is the author’s purpose of writing the passage?
A. To show how you describe your job affects your feelings toward it.
B. To argue that motherhood is a worthy career and deserves respect.
C. To show that the author had a grander job than Emily.
D. To show that being a mother is hard and boring work.
Ⅴ. 任务型读写
阅读下面短文,根据所读内容在表格中的空白处填入恰当的单词。
注意:每个空格只填一个单词。
Biofuels
Biofuels have been around as long as cars have. At the start of the 20th century, Henry Ford planned to fuel his Model Ts with ethanol(乙醇). But discoveries of huge petroleum deposits(储量)kept gasoline and diesel(柴油)cheap for decades, and biofuels were largely forgotten. However, with the recent rise in oil prices, along with growing concern about global warming caused by carbon dioxide emissions, biofuels have been regaining popularity.
Gasoline and diesel are actually ancient biofuels. But they are known as fossil fuels because they are made from plants and animals that have been buried in the ground for millions of years. Biofuels are similar, except that they’re made from plants grown today.
Much of the gasoline in the United States is blended with a biofuel—ethanol. Countries around the world are using various kinds of biofuels. For decades, Brazil has turned sugarcane into ethanol, and some cars there can run on pure ethanol rather than as additive to fossil fuels.
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