3. 1.There was an electric bell that did not work… 不及物动词 “ 正常运用 ” You should check that the smoke alarm is working properly. Do you know how to work a lathe. 1)“ 有效 ” You need to find which method works best for you.

4. 3 ）适合 The color combination just doesn’t work for me. 2)“ 行 ” They are testing a drug that works against some types cancer. I don’t think the scene with the horses really works,do you ?

5. 2.Della finished crying and attended to her cheeks with the power rag. Attend to sb./sth. 1) 处理。相当于 deal with I may be late.I have got one or two things to attend to 2) 照顾，相当于 serve 或 take care of Are you being attend to, sir?

6. 3.Expense had been greater than she had calculated. Expense 既是可数名词又是不可数名词 1)at great /considerable/vast expense 花费很大 代价很高 Conference rooms were equipped at great expense. 2 ） at the expense of sb./sth. 以 … 为代价 He finished the job at the expense of his health. 3)at sb’s expense 让某人花费 Her mansion was built at the taxpayers’ expense.

7. 4.take pride in 以 … 为荣 She took great pride in her appearance. Take (a) pride in 以 … 为自豪 他以自己的成功为自豪。 名 :He takes (a) pride in his success. 动 :He prides himself on his success. 形 :He is proud of his success.

8. She pulled down her hair and let it fall to its full length. Length 是 long 的名词 “ 长度 ” We walk the length of street. At length 终于；详尽地 At length he came back. We have already discussed the matter at great length.

9. It was worthy of the watch. Worthy of sth.“ 值得 ” E.g. A couple of other books are worthy of mention.