《2025年情景导学高中英语必修第二册外研版》

1 It takes hundreds of years for plastic to break down,but much less time for paper.
塑料需要数百年才能分解,而纸的降解时间要短得多。
读句入境念
Plastics easier to break down in sunlight are produced in this factory.
这家工厂生产更容易在阳光下分解的塑料。
The bus broke down on the way to their destination.
公共汽车在他们去目的地的路上抛锚了。
Fortunately,Mary and Sam broke down the barriers between them.
幸运的是,玛丽和萨姆消除了他们之间的隔阂。
A large goal needs to be broken down into smaller goals in order to get it done.
一个大的目标需要分解成若干个小一些的目标,以便完成。
归纳小结衾
动词短语 break down 在不同的语境中有
着不同的含义,如:①(使)分解;②停止
运转,出故障;③消除,驱除(人与人之间
的隔阂等);④拆分,把……分成若干部
分(以方便做或理解)。
云高考链接衾
①单句语法填空
Jennifer De Bruyn,a microbiologist at the
University of Tennessee,who was not
involved(involve)in the study,says it
is not surprising that such worms can break
down polyethylene(聚乙烯).
②根据汉语意思完成句子
这两个国家将要会面,以打破他们之间
的一些贸易壁垒。
The two countries are goingto meet to break down
some barriers to trade between them.

答案： ①involved; down ②to meet to break down