公共英语一级写作语法解析

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　　兼有两种形式的副词

　　1)close与closely

close意思是"近"; closely 意思是"仔细地"

He is sitting close to me.

Watch him closely.

　　2)late 与lately

late意思是"晚"; lately 意思是"最近"

You have come too late.

What have you been doing lately?

　　3)deep与deeply

deep意思是"深"，表示空间深度;deeply时常表示感情上的'深度，"深深地"

He pushed the stick deep into the mud.

Even father was deeply moved by the film.

　　4)high与highly

high表示空间高度;highly表示程度，相当于much

The plane was flying high.

I think highly of your opinion.

　　5)wide与widely

wide表示空间宽度;widely意思是"广泛地"，"在许多地方"

He opened the door wide.

English is widely used in the world.

　　6)free与freely

free的意思是"免费";freely 的意思是"无限制地"

You can eat free in my restaurant whenever you like.

You may speak freely; say what you like.

　　worth 的用法

worth，worthy，worth-while都为adj.　意为"值得".

1. worth：be worth + n.　 当名词为金钱时，表示"…… 值得……"

be worth doing sth.　"……某事值得被做"

The question is not worth discussing again and again.

2. worthy：be worthy of +n.　当名词为抽象名词时表示"……值得……"

be worthy to be done "某事值得被做"

The question is not worthy to be discussed againand again.

3. worth-while：be worth-while to do sth　 "值得做某事"

worth while：It is worth while doing sth

It is worth while sb to do sth.

　　典型例题

It is not ____ to discuss the question again and again.

h　hy　h-while　h while

答案C. 由worth的用法可知，此句只适合词组be worth-while to do sth..因此选C.