Yeast may sound familiar because it's used to make things like bread, wine and beer. Biologists like to work tith yeast because it easily adopts new genes and changes its features and behavior. When Bohlmann put the fir tree into the yeast, the yeast started making the same chemical that had seen produced by the tree.

　　Perfumers pay big money for ambergris because it is a fixative, which means it holds a smell in place on a person's body.

　　“Cheap perfumes smell good in the first hour or so and then everything it gone.” explains Bohlmann. “But expensive perfumes are much more stable. Their smell lasts much longer, for hours or even a day after you apply them.”

　　The new chemical, made from the tree genes, can be used as a fixative, too. And using yeast to make it is far cheaper than acquiring ambergris.

　　Bohlmann admits he never thought he'd get into the perfume business. But now, he says, producers have been calling to find out how to use his technology in mew perfumes.

　　It can be inferred from the passage that if a perfume contains ambergris,

　　.

　　Its user probably supports whale hunting

　　Its smell will last for about an hour

　　There will be a whale symbol on hour

　　It is probably very expensive

　　The underlined expression “with a catch” in Paragrph 3 means

【2017届贵州思南县中学高考英语一轮复习阅读理解精编：2（含解析）】相关文章：

★ 2017年高考英语二轮复习精品资料：专题15 完形填空（押题专练）（原卷版）

★ 【课堂新坐标】2017届高考英语（通用版）二轮复习书面表达专题训练：训练2 书信、邮件＋写人类记叙文（含解析）

★ 2014届高考英语一轮复习课时作业(四十四)选修8Module 2《The Renaissance》（外研版）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (47)

★ 2014届高考英语一轮复习必修1参考答案（外研版）

★ 2017届高考英语二轮复习课时训练：15（含解析）

★ 湖南省汝城二中2014届高考英语一轮复习阅读训练 (26)

★ 2014高考英语（新人教版）一轮基础训练（2）A、B卷（附答案或解析）

★ 2017届高考英语二轮复习大题冲关秘籍完形填空之夹叙夹议文：名校模拟（含解析）

★ 天津市武清区杨村第四中学2016届高考英语一轮复习语法专题八《情态动词用法详解》课件外研版