上海卷英语高考语法大全(7)

*if only sb+did/were sth or if only sb could/would do/be sth

if only sb had done/been sth or if only sb could have done sth

eg. If only I could pass all my knowledge to all= I wish I could pass all my knowledge to all. without ,with , but for,in the absence of ,otherwise =if it were not for

eg. Without your help, I couldn t finish my work on time.

*if it were not/had not been for

eg. If it had not been for the newspaper ,I would never have found my lost daughter. John pretends as if he didn t know the thing at all,but in fact he knows it very well.

*lest, in case, so that,unless, lost, for fear that ,supposing,provided,on condition that,if only

eg. Care must be taken in using this method lest overflow should occur.

*wish

*ask ,advise, arrange , beg, command,decide,demand……

* would (had) rather, would just as soon, would as soon,would sooner and would eg. I d rather you posted the letter right away.

It is (was) +adj+that……………………+should

Better ,desirable,imperative,urgent, necessary,essential,important,advisable

It is a pity /a shame/a thousand pities/no wonder/amazing/surprising/strange/incredible+should/should have done

Eg. It is high time that we left /should leave.

*may+sub+v

eg. May you be happy. May the friedship between us last long.

God bless you .

Long live the People s Republic of China.

情态动词

should表示说话人在口气上带有更多的主观信心，从而在表示强烈的劝说、建议和敦促时 will/would表示一种习惯动作

may/might+v 用于肯定句或否定句（一般不用于疑问句中），表示现在或将来的“可能” shall说话人的意志，即说话人给句子主语的命令、警告、允诺或威胁

shall/should用于第一、三人称疑问句中，表示征求对方请示

eg. Shall I put the table near the door?-please don t

can/could/should表示说话人对某事不能理解，感到意外、惊讶；还可表示惋惜、忧虑、欢欣等感情色彩

eg. How can you be so careless!/why should you be so late today?

must表示对与自己愿望相反的事的不耐烦口气

eg. Must you shout so loudly?/ The phone must ring when I was busy in the kitchen. should用于第一人称时，可表示说话人的一种谦虚、客气、委婉的语气

eg. You are mistaken ,I should say.

*you must be joking!

句型 时态 动词

情态动词dare 实义动词dare

肯定句 现在时 Dare to少用 Dare/dares to do