重点词汇

Roosters are supposed to drive bad spirits away from the wedding ceremony，and hens are thought to ensure good luck for the marriage.

人们认为公鸡能把鬼魂从婚礼仪式上赶走，母鸡能确保婚姻好运。

be supposed to...应该......；被认为是......

be supposed to do sth.应该做某事

suppose sb./sth.to be...认为某人/某物是......

be supposed to have done...本该做......但实际上未做

be not supposed to do...不允许做......

suppose/supposing引导条件状语从句，相当于if，表示"如果，假设"。

(1)You look well.The air and the sea foods in Sanya must agree with you，I suppose.

你看起来气色很好。我想三亚的空气和海鲜一定适合你。

(2)The message is very important，so it is supposed to be sent as soon as possible.

这条消息很重要，所以应该尽快被传达。

(3)Suppose/Supposing she doesn't come，what shall we do？如果她不来，我们将做什么？

[单项填空]

(4)Mr White at 8：30 am for the meeting，but he didn't show up.

A．ought to arrive

B．should arrive

C．should have arrived

D．was supposed to arrived

答案　C

解析　句意为：怀特先生本应该在上午830来参加会议，但是他没有出现。should have done本应该做某事，实际上却未做。根据后面的did说明是对过去发生的情况的推测。be supposed