归纳拓展：a(large/small)amount of＋n.U](谓语动词用单数)

(large/small)amounts of＋n. U](谓语动词用复数)

小试牛刀：

Large amounts of money were spent on the bridge.

　=A large ______________________________________________.

那座桥耗资巨大。

2．Well，it_is_well­known_that Americans like to eat a lot.(P22)

　　嗯，美国人喜欢吃很多，这是大家都知道的。

"It is well­known that...(众所周知......)"是常用句型。it是形式主语，that引导的从句是真正的主语。 It is known that句型可转换成：

归纳拓展：①As is known...(as引导非限制性定语从句)

　　　　　②What is known is that...(what引导主语从句，that引导表语从句)

It is known that the earth moves around the sun.→As is known，the earth moves around the sun. →What is known is that the earth moves around the sun.

小试牛刀：　句型转换

　　It is well­known that his songs are popular with the young.

　　①→___________ _，his songs are popular with the young.

　　②→_______________ _his songs are popular with the young.

　3．manner方式，举止；礼貌

　　(in a rude manner)What's there to wait for？(P22)(很不耐烦地)还等什么？

　归纳拓展：in a．..manner以......的方式

　　　　　　It is bad/good manners to do sth.做某事没有/有礼貌

【提示】　当manner意为"方式；方法；举止；态度"时常用单数形式；当它意为"礼貌，礼仪；习俗"时常用复数形式。

　小试牛刀：完成句子

　①They settled the quarrel between them___________________ ____(以友好的方式)．

　②It ____________ _____(不礼貌) to talk with your parents in a rude way.

　4．You must come whenever you want and have whatever you like.

您什么时候想来就来，想吃什么就吃什么。

whenever在此引导让步状语从句，意为"无论何时"，相当于no matter when。

Whenever (＝No matter when) you come，you will be warmly welcomed.

无论什么时候来，你都会受到热烈欢迎。.Com]