2020-06-06

need的常考用法：

1. need作情态动词，主要用于疑问句和否定句中，一般不用在肯定句中。比如：

You needn't worry. 【否定句】
你不用担心。

Need I call him right now? 【疑问句】
需要我现在给他打电话吗？

需要注意的是，对于need引导的疑问句，肯定回答要用must (或have to, should), 否定回答要用needn't (或don't have to)。比如：

Need I finish this today?
-Yes, you must.
-No, you needn't.

不要问凭什么肯定回答不能用Yes, you need.
可别忘了：情态动词need只用于否定句或疑问句，一般不用于肯定句哦。 ╮(╯╰)╭

2. need作实义动词时，可用于肯定句、否定句和疑问句中。比如：

Plants need light in order to survive. 【肯定句】
植物存活必须有光照。

You don't need to wait for me. 【否定句】
你不需要等我。

Do I need to say more? 【疑问句】
我还需要说更多吗？

3. 考试中还经常出现“物+need doing”的结构，它可以表示被动含义。比如：

这些衣服需要洗了。
The clothes need washing.
=The clothes need to be washed.

我的手表需要维修。
My watch needs repairing.
=My watch needs to be repaired.

小练习
The bridge, which dates from 1688, needs _____.
A. 只能填入repairing
B. 只能填入to be repaired
C. repairing和to be repaired都可以
Need I go there with you? Yes, you _____.
A. need
B. must
C. may
You ______ finish that work today
A. needn't
B. don't need
C. mustn't
考试真题
在近几年全国和各地中高考、CET4、CET6和考研试卷中，

今天的need的用法多次出现，以下是几个例子：

It's quite warm here; we needn't turn the heating on yet.

We needn't have bought so much food now that Suzie won't be with us for dinner.

We need to realize first of all that there are many things we don't know.（CET-4 2017年12月）

今天好像没话说
** ╮(╯╰)╭**
Then
See you next illusion