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重点讲解：
1. be close to
近的；接近的；
eg. I think I'm close to your work.
我想离你上班的地方不远。
eg. "One home was close to hiking trails, making going hiking very easy, " he said in an e-mail.
“有间房子离登山路径很近，爬山很方便，”他在一封电子邮件里说。
2. the same as
与…相似；与…一样；
eg. Battery charging systems remain basically the same as those in use half a century ago.
电池充电系统和半个世纪前基本上没什么区别。
eg. Collectively, these actions should mitigate some of the impact of the global downturn, but mitigate is not the same as offset.
总的来说，这些行动将会减轻一部分世界经济下滑的冲击，但是减轻不意味着消除。
3. be based on
以…为基础；
eg. Based on the similarities they found, the researchers assigned each current employee a flight risk score.
在他们所发现的数据相似性基础上，研究者们为目前每位员工都打了一个离职风险（Flight Risk）评分。
eg. Constructive criticism can be useful if it's based on performance or behavior.
建立在个人的行为和表现之上的建设性批评是有用的。
4. go back to
回到（过去）；回顾；
eg. It may be necessary to stop at intervals in the learning process and go back to the difficult points in the lessons.
在学习过程中时不时的停下来回顾课文中不同的知识点是必要的。
eg. Whenever she talks, she always likes to go back to her younger days.
是的，她只要一开口，就喜欢回顾她的青年时代。
5. consist of
由…组成；由…构成；
eg. Search engines consist of 3 main parts.
搜索引擎主要由三部分组成。
eg. The simplest consist of a single room with a sink in the corner and a toilet behind a partition.
最简单的户型只有一个单间，在角落里有一个洗脸台，厕所在隔墙后面。
6. be good at
擅长的；精通的；能干的；
eg. Because I'm not good at letting go.
因为我总是拿得起放不下。
eg. She was good at repartee.
她善于机智地应答。
7. be supposed to do sth.
（按计划或期望）应当，应该，须；
eg. Again, this wasn't supposed to happen.
再说，这确是不应该发生的。
eg. "The law is supposed to be the bottom line of a society, " he said.
“法律应该是一个社会的底线，”他说。
8. take care of
照顾；照看；看护；
eg. He's old enough to take care of himself.
他大了，能照顾自己了。
eg. I take care of them to the best of my abilities.
我尽我所能地照顾他们。
n. 冲击(力), 冲突，影响(力)
vt.
