牛津实用英语语法:287 劝告的形式

　　A must，ought to和should可用来表示劝告：

　　You must read this book.Its marvellous.

　　你该读一读这本书。这本书非常好。

　　You should grow your own vegetables.

　　你应该自己种菜吃。

　　You ought to plant some trees.

　　你应当种几棵树。

　　在间接引语中 must，ought to和should可以不发生变化，或用advise+ 宾语结构来转述：

　　He advised me to plant trees.

　　他劝我种树。

　　B you had better +不带to的不定式(参见第120节)：

　　Youd better take off your wet shoes.

　　你最好把湿鞋子脱掉。

　　Youd better not wait any longer.

　　你最好不要再等了。

　　had better可用于第三人称：

　　Hed better stop taking those pills.

　　他最好别再服用那些药片。

　　C if I were you I should/would：

　　If I were you Id buy a car.

　　如果我是你，我就买一辆汽车了。

　　这种形式常常被缩略为I should/would，I稍加重音：

　　Id buy a car.

　　(译文同上。)

　　在间接引语中 If I were you I should/would由advise+宾语结构来转述：

　　He advised me to buy a car.

　　他劝我买辆汽车。

　　D I advise/would advise you+不定式：

　　I(would) advise you to apply at once.

　　(你要是问我的意见的话)我劝你马上去申请。

　　I advise/would advise+动名词：

　　I(d) advise applying at once.

　　(译文同上。)

　　E why dont you?可表示劝告或建议：

　　Why dont you learn to play your guitar?

　　你为什么不学弹吉它?

　　Why dont you take a holiday?

　　你为什么不休假?

　　表示劝告时，可由advise+宾语结构转述：

　　He advised me to take a holiday.

　　他劝我去度假。

　　F it is time you + 过去时态：

　　It is time you bought a new coat.

　　你该买一件新外衣了。

　　可用下列方法表示转述：

　　He said it was time I bought a new coat.

　　他说我该买一件新外衣了。