情态动词must和haveto的用法（情态动词mustshould和oughtto的用法）

情态动词must和haveto的用法（情态动词mustshould和oughtto的用法）(1)

情态动词must和haveto的用法（情态动词mustshould和oughtto的用法）(2)

一、小编的朗读

情态动词must和haveto的用法（情态动词mustshould和oughtto的用法）(3)

二、重要句型或语法

1、情态动词

本课侧重的是情态动词must、should和ought to的用法，同时也对比了have to的用法。如：

I must leave now.

She had to go shopping yesterday.

I should/ought to do some work tonight, but I think I shall go to the cinema instead.

【推荐阅读】

更多相关情态动词的用法，可参考下面的文章：

情态动词must的用法

情态动词can的考点用法

图解《新概念英语》语法之情态动词

2、有关let的短语

本课里主要例举了let off、let down、let in、let out等短语。

三、课文主要语言点
Last Christmas, the circus owner, Jimmy Gates, decided to take some presents to a children's hospital. 1）注意last Christmas用逗号隔开了，主要是为了凸显后面的成分。 2）the circus owner，马戏团老板。 3）take presents to，把礼物带到某地。
Dressed up as Father Christmas and accompnied by a 'guard of honour' of six pretty girls, he set off down the main street of the city riding a baby elephant called Jumbo. 1）be dressed up as，装扮成。 2）Father Christmas，圣诞老人。也可作Saint Claus。 3）be accompanied by，由...陪伴、陪同。 4）a guard of honour，仪仗队。 5）set off，出发。 6）down the main street，此处的down表示沿着。 7）riding a baby elephant用作伴随状语 8）called Jumbo前面省略了that/which was。
He should have known that the police would never allow this sort of thing. 1）should have done，本该....。 2）would never allow，绝不会允许。
A policeman approached Jimmy and told him he ought to have gone along a side street as Junbo was holding up the traffic. 1）approach，走近、靠近。 2）ought to have done，本该。 3）a side street，小路。 4）hold up，阻碍、妨碍。
Though Jimmy agreed to go at once, Jumbo refused to move. 1）though，尽管、虽然。 2）agree to do sth.，同意做某事。 3）refuse to do，拒绝做某事。。
Fifteen policemen had to push very hard to get him off the man street. 1）push，推。其反义表达为pull（拉）。 2）get...off ...，把...从某地弄走。
The police had a difficult time, but they were most amused. 1）have a difficult time，日子难过、不舒服。 2）most，很、非常。 3）be amused，觉得好笑、开心。
Jumbo must weigh a few tons,' said a policeman afterwards, 'so it was fortunate that we didn't have to carry him. Of course, we should arrest him, but as he has a good record, we shall let him off this time.' 1）weigh 重量，表示某物有多重。 2）ton，吨。 3）afterwards，之后。 4）fortunate，幸运的。 5）that引导的是主语从句，it是形式主语。 6）arrest，逮捕。 7）as引导的是原因状语从句，表示由于、因为。 8）have a good record，有着良好的记录。 9）let sb. off，放过某人。

四、读写重点
可利用教材第297页Composition（作文）中的练习，操练如何连词成句。

五、语用文化
可简单介绍马戏团及其常见的动物表演。

六、教学建议
1、在讲情态动词时，注意对比must和have to，要注意have to不是情态动词。此外，should与ought to相比，语气要更为强烈些。

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情态动词must和haveto的用法（情态动词mustshould和oughtto的用法）

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Last Christmas, the circus owner, Jimmy Gates, decided to take some presents to a children's hospital.	1）注意last Christmas用逗号隔开了，主要是为了凸显后面的成分。 2）the circus owner，马戏团老板。 3）take presents to，把礼物带到某地。
Dressed up as Father Christmas and accompnied by a 'guard of honour' of six pretty girls, he set off down the main street of the city riding a baby elephant called Jumbo.	1）be dressed up as，装扮成。 2）Father Christmas，圣诞老人。也可作Saint Claus。 3）be accompanied by，由...陪伴、陪同。 4）a guard of honour，仪仗队。 5）set off，出发。 6）down the main street，此处的down表示沿着。 7）riding a baby elephant用作伴随状语 8）called Jumbo前面省略了that/which was。
He should have known that the police would never allow this sort of thing.	1）should have done，本该....。 2）would never allow，绝不会允许。
A policeman approached Jimmy and told him he ought to have gone along a side street as Junbo was holding up the traffic.	1）approach，走近、靠近。 2）ought to have done，本该。 3）a side street，小路。 4）hold up，阻碍、妨碍。
Though Jimmy agreed to go at once, Jumbo refused to move.	1）though，尽管、虽然。 2）agree to do sth.，同意做某事。 3）refuse to do，拒绝做某事。。
Fifteen policemen had to push very hard to get him off the man street.	1）push，推。其反义表达为pull（拉）。 2）get...off ...，把...从某地弄走。
The police had a difficult time, but they were most amused.	1）have a difficult time，日子难过、不舒服。 2）most，很、非常。 3）be amused，觉得好笑、开心。
Jumbo must weigh a few tons,' said a policeman afterwards, 'so it was fortunate that we didn't have to carry him. Of course, we should arrest him, but as he has a good record, we shall let him off this time.'	1）weigh 重量，表示某物有多重。 2）ton，吨。 3）afterwards，之后。 4）fortunate，幸运的。 5）that引导的是主语从句，it是形式主语。 6）arrest，逮捕。 7）as引导的是原因状语从句，表示由于、因为。 8）have a good record，有着良好的记录。 9）let sb. off，放过某人。