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UNIT 9 LEARNING(二)
1．More often than not(通常)，what we mean when we say someone “has an accent” is that
their accent is different from the local one，or that pronunciations are different from our own.
2．But this definition of accents is limiting and could give rise to(引起，导致) prejudice.
3．The fact that(引导同位语从句) this expression would cause a standard American English
speaker to take pause doesn’t mean that Singapore Oral English is “wrong” or
“ungrammatical”．
4．Cars powered(过去分词作后置定语，修饰Cars) by batteries made from(过去分词作后置
定语，修饰 batteries) seawater and planes fueled(过去分词作后置定语，修饰 planes) by
ammonia (氨) will become common over the next 10 years，Bill David，a professor of materials
chemistry has predicted(v.预言，预计)．
5．Most batteries for electric cars and smartphones are powered by lithium (锂)，which has to be
mined(此处为动词，意为“开采……”)，but David thinks that they will be overtaken(v.超过，
赶上) by batteries made from sodium(钠)，which can be obtained(v.得到，获得) from seawater
and salt.
6．My estimate(n.估计) is that by 2040 I would not be surprised if there were ten times more
sodium batteries than lithium ones，maybe even 100 times.(if引导的虚拟条件句)
7．I finally got the doors open and started to empty(此处为动词，意为“清空”) the shelves.
8．I picked up(捡起) the pot to get rid of(除掉，丢弃) it，but something made me hesitate.
9．I changed my mind(改变主意) and set it aside.
10．I proudly showed it off(炫耀) to my granddaughters.
11．Ai Kanxiang is about to(正要) finish his first semester(学期) at college，where he is
working hard to make his dream come true(make的复合结构)．
12．As a physical education major，he hopes to become a PE teacher and train(熟词生义，此处
意为“培训”) China’s future soccer players.
13．Two years ago，though(此处为副词，意为“不过，可是，然而”)，his dream was even
bigger.
14．Ai wanted to join the men’s national soccer team，but the 20-year-old has experienced
twists and turns(曲折变化) on the soccer field.
15．Demonstrating(v.示范，演示) creativity，such as the way to do a precise(adj.精确的，准
确的) bicycle kick in the water，he became an online celebrity(名人)，with some fans even
saying(with的复合结构：with＋宾语＋宾补) that he was “better than professional players”．
