概要： I could see from his face that he had received bad news. 从他的脸上我可以看出他收到了坏消息。 (receive这个动作发生在see之前) 3.叙述过去发生的事情,在已叙述了过去发生的事后,反过来追述以前发生的事时,要使用过去完成时。例如: ①He did good work because he had received strict training at school. 他工作做得好,因为他在学校里受过严格的训练。 ②They were hungry because they hadn't eaten anything in the morning. 他们饿了,因为他们早上没吃东西。 4. 过去完成时常用于宾语从句中: He said he had lived there for 5 years. He told me that he had seen the film. 三、不需要用过去完成时的场合
九年级英语上学期Unit5学案,标签：九年级英语复习教案,九年级下册英语教案,http://www.67jx.comI could see from his face that he had received bad news.
从他的脸上我可以看出他收到了坏消息。 (receive这个动作发生在see之前)
3.叙述过去发生的事情,在已叙述了过去发生的事后,反过来追述以前发生的事时,要使用过去完成时。例如:
①He did good work because he had received strict training at school.
他工作做得好,因为他在学校里受过严格的训练。
②They were hungry because they hadn't eaten anything in the morning.
他们饿了,因为他们早上没吃东西。
4. 过去完成时常用于宾语从句中:
He said he had lived there for 5 years.
He told me that he had seen the film.
三、不需要用过去完成时的场合
注:过去一连串的动作,如用and连接时,一般常用"一般过去时",而不用"过去完成时"。例如:
On Saturday afternoon,Mrs Green went to the market,bought some bananas and visited her cousin.星期六下午,格林夫人去市场买了一些香蕉并拜访了她的堂兄。
B、should/ought to/had better / have to/ must表示建议的用法。
⑴should to/ ought
① 两者都可以表示职责和义务;提出"劝告"和"督促"别人去做应该做的事。
eg. We should do what our parents tell us.我们应该按照父母说的去做。
People ought to keep our classroom clean every day.
② should/ought to用于否定句时,多表示做了不应该做的事。ought to 的否定形式是ought not to,口语中常用oughtn't to.
eg. You shouldn't talk to your classmates in class.
People ought not to drop litter carelessly.
③ 在大多数情况下should/ought to 的意思相同。should比ought to语气轻。另外当我们谈论自己的主观看法时,用should;当我们反映客观情况时,用ought to.
eg. We should/ought to go and see our teacher tomorrow.(两者都可以)
We ought to go, but I don't think we will because we have much work to do.(只能用ought to)
⑵must/have to表示"必须",在语气上比"应该"更强烈。
① must表示现在"必须";用will/shall have to 表示将来的"必须",用had to的形式表示过去的"必须"。
eg. They must finish their work first.(表现在)
They will have to finish their work first. (表将来)
They had to finish their work first. (表过去)
② must/have to表示"必须"时意义相近, 但在用法上略有区别:must侧重于表示说话人的主观意志;have to侧重于表示客观需要。
eg. It's raining hard. I have to go.(指外界客观环境要求)
I'm tired. I must go home.(自己主观上的要求)
③ have to 的否定形式为don't have to = needn't, 表示不必要;
must 的否定形式为mustn't表示禁止;不允许;一定不要。
⑶had better表示"最好",用于表示对别人的劝告、建议或表示一种愿望。缩写形式为 'd better。had better后面加动词原形,否定形式为had better not do sth.表示"最好不做……"。
eg. You look tired. You'd better see a doctor.
C、"why not", "why don't you" 和 "perhaps" 表示建议时的用法。
⑴"why not" 句型常用于说话人向对方提出一个建议, 意思是"何不……?"它和"why don't you"句型为同义句,后面都要加动词原形,即why not do sth? 和Why don't you do sth.?
eg. Why don't you go to the cinema with your mother?
= Why not go to the cinema with your mother?
⑵"perhaps"表示"可能",一般放在句首向对方提一个建议。
eg. A:I want to be as strong as Tom.
B: Perhaps you should exercise more.