[新概念英语第一册lesson137]新概念英语一册Lessons71-72课后练习答案

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　　词汇学习 Word study

　　answer

　　(1)v. 对……作出反应;响应：

　　Who answered the telephone? 谁接的电话?

　　Mary took a few minutes to answer the door. 玛丽拖了几分钟时间才去开门。

　　(2)v. 回答;答复：

　　I don't think you've answered my question. 我认为你没有回答我的问题。

　　I wrote him several letters but couldn't get an answer. 我给他写了好几封信，可都没有回音。

　　(3)n. 答案;解决办法：

　　Do you know the answer to Question 10? 你知道第10题的答案吗?

　　This is one of the possible answers to today's environmental problems. 这是有可能解决当今环境问题的办法之一。

　　练习答案 Key to written exercises

　　Lesson 72

　　A

　　1 It is raining now. It rained yesterday.

　　2 It is snowing now. It snowed yesterday.

　　3 He is boiling some eggs. He boiled some yesterday.

　　4 We are enjoying our lunch. We enjoyed it yesterday, too.

　　B

　　1 What did they do yesterday?

　　They cleaned their shoes yesterday.

　　2 What did he do last night?

　　He opened the box last night.

　　3 What did they do this morning?

　　They sharpened their pencils this morning.

　　4 What did she do this evening?

　　She turned on the television this evening.

　　5 What did she do last night?

　　She listened to the radio last night.

　　6 What did she do yesterday morning?

　　She boiled an egg yesterday morning.

　　7 What did they do yesterday afternoon?

　　They played a game yesterday afternoon.

　　8 What did he do in the morning the day before yesterday?

　　He stayed in bed in the morning the day before yesterday.

　　9 What did she do yesterday evening?

　　She telephoned her husband yesterday evening.

　　10 What did she do the night before last?

　　She called the doctor the night before last.

新概念英语一册Lessons 71-72课后练习答案.doc

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