②Thank you for making my visit so worthwhile.感谢你们使我的访问如此有价值。

③It is worthwhile discussing the question.(＝It is worthwhile to discuss the question.)这个问题值得讨论。

【易混辨析】worth，worthy，worthwhile

(1)worth意为"值(多少钱)"、"相当于......的价值"或"值得"等。其后通常接表示钱数的名词或相当于"代价"的比喻性名词。

be worth 后还可接动词的-ing形式，意为 "值得做"，应使用主动结构表示被动意义。be worth不能接不定式。

(2)worthy的结构是：be worthy of sth./be worthy of doing sth./sth.is worthy to be done或sth.is worthy of being done。

(3)worthwhile要与形式主语it并用，构成It is/was worthwhile doing/to do sth.，worth也可用于这个句式中。

①Guilin is worthy of being visited.

②Hangzhou is a beautiful place.It is worthwhile to go there.

③Is the exhibition worth a visit?

【即境活用】7．Because American parents believe that knowledge leads to a meaningful life，they try to give youngsters many opportunities to develop skills and ________ interests.A．Worth B．worthyC．valuable D．worthwhile

8.We have worked together in harmony for many years, and I find it ________ with them.A．worthy of workingB．useless to workC．worth of working D．worthwhile working

3.to one's astonishment　令某人惊讶的是

(回归课本P79)To our astonishment，just two days after we had received our confidential orders to join the D-Day landing troops，and after a day fighting and seeing many of my friends killed by the enemy，we found ourselves outside a peaceful village in France.使我们吃惊的是，就在我们接到加入D日登陆部队的机密命令后两天，经过一天的战斗，并亲眼目睹我的很多朋友被敌军残杀后，我们发现我们来到了一个宁静的法国村庄外面。

＝To the astonishment of him，the keys were in the door.

②Much to everyone's astonishment，the plan succeeded.

③To the curiosity of everyone，his father was not angry over what he had done.

使每个人好奇的是，他的父亲并没有因为他做的事而生气。

【即境活用】9．To our ________，the computer doesn't function again.

A．disappointment　 B．Disappointing C．disappointed D．delight

III.句型梳理

1.【教材原句】　The operation was extremely dangerous and many soldiers were killed before they even got off the boats.(P72)

军事行动特别危险，许多士兵甚至还没来得及下船就被杀死了。

【句法分析】　此句为一个主从复合句，before引导一个时间状语从句，意为"还没有来得及......就......"。

before用作连词句型归纳：

(1)before sb.can/could...某人还没来得及......

①Before I could get in a word，he had measured me.

我还没来得及插话，他就给我量好了尺寸。