should not have done ／ ought not to have done：表示过去本不应该做某事但事实上却做了。

need have done：表示过去本来有必要去做某事，但事实上没有做。 need not have done：表示过去本来没有必要做某事，但事实上却做了。

如： I was really anxious about you． You ＿＿＿＿＿ home without a word． (2001)

A mustn’t leave B shouldn’t have left C couldn’t have left D needn’t leave

I told Sally how to get here, but perhaps I ＿＿＿＿＿ for her． (94) A had to write it out B must have written it out C should have written it out D ought to write it out

—Is John coming by train﹖—He should,but he ＿＿＿＿＿＿ not,He likes driving his car．

A． must B． can C． need D． may

—I hear you’ve got a set of valuable Australian coins． ＿＿＿＿＿＿ I have a look﹖

—Yes, certainly．

A． Do B． May C． Shall D． Should

Mr. Bush is on time for everything． How ＿＿＿＿ it be that he was late for the opening ceremony﹖

A． can B． should C． may D． must

—Are you coming to Jeff’s party﹖

—I’m not sure． I ＿＿＿＿ go to the concert instead． A． must B． would C． should D． might

I should have been there, but I ＿＿＿＿＿ not find the time． A． would B． could C． might D． should

Johnny, you ＿＿＿＿ play with the knife, you ＿＿＿＿ hurt yourself．

A won’t; can’t B mustn’t; may C． shouldn’t; must D． can’t; shouldn’t

—Will you stay for lunch﹖

—Sorry, ＿＿＿＿＿＿． My brother is coming to see me． A． I mustn’t B． I can’t C． I needn’t D． I won’t

—Could I borrow your dictionary﹖ —Yes, of course you ＿＿＿＿＿． A． might B． will C． can D． should

The fire spread through the hotel very quickly but everyone ＿＿＿＿ get out． A． had to B． would C． could D． was able to

—Shall I tell John about it ﹖—No, you ＿＿＿＿＿． I’ve told him already． A． needn’t B． wouldn’t C． mustn’t D． shouldn’t

五：一致关系 主谓一致原则：

1就前原则：

n. + together with, as well as, including, accompanied with/by

2就近原则： n1 or n2 +v either n1 or n2

3复数结构： 可数n1 and 可数n2+v(pl) 不可数n1 and 不可数n2+v(pl)

例外：war and peace is… war and peace是一个整体

但是如果主语表示的是同一个概念，同一人，同一事的时候，谓语动词用单数， 这种结构的特征是and连接的两个词只有一个冠词。

The iron and steel industry is very important to our country.

along with,

with / of,

The head master and mathematical teacher is coming. The head master and the mathematical teacher are coming.

类似的还有：law and order bread and butter black and white

To love and to be loved is … A lawyer and a teacher are… A lawyer and teacher is …

4就后原则：not A but B / not only A but also B + v.(与B一致)

5倒装结构的主谓一致：

a）There be +n 由名词决定动词

b）Among , between等介词位于句首引起倒装结构： Among / Between …+系动词+n. （由名词决定动词） 六：倒装

a全部倒装 句子中的谓语动词全部置于主语之前。 此结构通常只用与一般现在时和一般过去时。

常见的结构有：Up went the plane = the plane went up.

1) here, there, now, then, thus等副词置于句首, 谓语动词常用be, come, go, lie, run。

2) 表示运动方向的副词(back, down, off, up)或地点状语置于句首，谓语表示运动的动词。 注意：

1) 上述全部倒装的句型结构的主语必须是名词，如果主语是人称代词则不能倒装。 Here he comes. Away they went.

2) 谓语动词是be的时候，不能倒装。 Here it is.

3） 表示地点范围的介词短语位于句首，谓语动词为系动词，一定引起倒装 In…（表语）+系动词+主，主同。

*常考介词要倒装：among between in at beneath 常考的系动词：be lie exist remain rest

b部分倒装

否定 adv 位于句首便会引起倒装。

如：not only, not until, hardly, scarcely, seldom, rarely, no sooner…than

1） not until + 时间 + 主谓倒装，not until + 句子+主谓倒装 2） only+状语位于句首

Here you are.