通过100个单词掌握英语语法(四十八)need

[规则动词]需要某事，或被迫做某事:I need a break. The radio needs new batteries. You don't need to come if you don't want to.

[情态动词(只用于疑问句和否定句)]不得不:Need they wait? I needn't have bothered.

[名词]需要,必要:There's no need to shout!

语法结构

1 need(动词) | + 名词短语

Do you need anything from the shops?

Cathy needed an electrician so she phoned Jeff.

表示你所需要的东西

2 need (动词 ) | + 带to的不定式

We need to do something about the design.

Wendy won't need to retake her exam after all.

表示需要或不需要的东西

3 need (动词) | + 名词短语 | + 带to的不定式

She needs somebody to look after the baby for an hour or two.

I need a cloth to clean up this mess.

表示需要某人或某物来帮你做某事

4 need (动词) | + -ing

The grass needs cutting.

Does this salad need washing?

强调应该做某事

5 need (情态动词) | + -n't/not | + 不带to的不定式

You needn't dry the dishes:just leave them to drain.

I needn't have got up so early: I could've stayed in bed.

You needn't start the course next year:you can wait until the year after.

表示现在(或过去或将来)不需要的东西

6 there | + is/was等 | + 限定词 | + need(名词) | + 带to的不定式

There was no need to phone the police,but they did.

There's an urgent need to protect the ozone layer.

表示(不)需要的行为.

搭配

最常见的接在"need + to"后面的不定式是:be,know,do,have,make和get.

You need to be careful.

What we need to know is the exact cost.

Did you need to do that?

经常跟need连用的副词是badly(=very much):

He badly needs a haircut.

Money is badly needed to help restore the temple.

固定短语

need a hand = require help需要帮忙

Do you need a hand with the packing?

be in need of =require需要

This house is in need of a coat of paint.

if need be = if necessary 如果需要(的话)

We can always order a pizza ,if need be.