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Unit 7

1.be able to 能够

am\is\are able to do sth

was\were able to

will be able to

have been able to

(can\could)

2. work on 从事，继续工作

  work at

3That’s a funny idea 那真是有趣的主意

4 get\ask\tell sb to do sth 让某人做某事

 let \have \make sb do sth

5 own sth\have sth    拥有某物

 owner    主人

would most like to own(=have)sth.最想拥有

6. .the third most useful invention第三件最有用的发明