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1、学习好资料欢迎下载名词性从句中的虚拟主语从句(it is +adj./p.p that) 同位语从句(The +n. That) 表语从句(n. +be that)省略if的虚拟法(倒装)(1)虚拟语气中如果从句引导词if / whether省略，从句中需要倒装，提前助动词係动词)或情态动词。E.g. If it should rain tomorrow, we would not be able to have the sports meeting. =Should it rain tomorrow, we should not be able to have the sports meet
2、ing.省略if的虚拟法(倒装)(2)E.g. whether it (may) be fine or rainy, we would have the sports meeting.=Be it fine or rainy, we would have the sports meeting.If she had been given more information, she could have answered the questions. =Had she bee n give n more in formati on, she could have an swered the que
3、sti ons. 总结虚拟语气的动词标志in sist, suggest, require, request, dema nd, propose, prefer, maintain, move, urge, recomme nd, comma nd, order等动词表建议、愿望时，其后宾语从句中谓语动词 要用虚拟语气。Should +Vwish其后宾语从句中谓语动词要用虚拟语气。虚拟语气的名词标志1“ necessitysuggestion名词后面的表语从句或同位语从句中的谓语动词要用虚拟语气。2名词word表命令”时，其后主语从句、表语从句或同位语从句中，谓语动词需 用虚拟语气(shoul
4、d)+V。3 wish作名词时其后主语从句，表语从句或同位语从句中，谓语动词需用虚拟语 气(should)+V。虚拟语气的形容词标志It is + adj. that 句型中出现形容词女口 necessary, important, vital, decisive, critical, crucial, urge nt, stra nge, desirable, advisable, disappo inting,或过去分词充当的形容 词女口suggested, proposed, advised, demanded, requested, requir等时，that 句中 用should +
5、V 表示虚拟。虚拟的介词标志But for相当于 if it had not been for。 But for her help, I would have lost my way. Without, in the absenee of等组成的短语可相当于一个虚拟的条件从句。Without the light and heat of the sun, what would become of all the ani mals on earth?In the abse nee of water, pla nts would notgrow well.Under eonditio也可相当于一个虚
6、拟条件从句。Un der more favorable eon diti ons, we would have made more aehieveme nts.错综时间的虚拟条件状语从句中谓语动词的形式可与主句中谓语动词的形式不配套”，即错综时间的虚拟。If he had done as I had suggestedhe n, he would n t bnowg retfult madeIf they hadnthe rfpund would still be missing on the sea. If I hadnsuffieie nt preparati on for the exa
7、m the n, I would n t beninwollege虚拟和事实（前虚拟后事实）标志:butE.g. Iwould havegone to the party with you, but I was too busy.=If I had n t bee n too busy, I would have gone to the party with you.（前事实后虚拟）标志:otherwiseE.g. Iwas too busy the n,otherwise I would have gone to the party with you.More In formatio nwa
8、s （were） +to have done （不定式完成式）表示原来想做而未做”后面通常but陈 述语气）。E.g. I was to have arrived home on time, but my ear was held up by a bad traffie jam. had hoped表示过去未实现的愿望，其从句中谓语动词要用虚拟would+V。E.g. I had hoped that he would agree to lend me the mon ey.(倒装)带否定意义的副词置于句首时(1)带否定意义的词置于句首时，主谓语需要倒装。Rarely does he go t
9、o the movies.Not for a mome nt did he doubt the truth of her hon esty.Little do I know about the meaning of this proverb?Never before the ni ght had I felt the exte nt of my power.含有否定词的介词短语在句首含有否定词的介词短语在句首时，句子主谓倒装。这类介词短语包括：in no case, at no time, in no way, by no means, on no acco un t, inno sen se
10、, un der no circumsta nces,等等。意思为 决不，在任何情况下都不。”Only+状语”置于句首时的倒装(1)Only+状语”置于句首时，主谓语需要倒装。1) Only by practicing a lot outside class can we speak English fluently.2) Only whe n I saw him did I remember that I promised to bring him a gift.3) Only the n did I know that I was wrong.n ot o nly位于句首时的倒装句首是no
11、t only且连接分句结构时，引起局部(部分)倒装。Not only did we lose our mon ey, but we were also in dan ger of los ing our lives.Not only can he sing very well, but he can also play some musical in strume nt very skillfully.neither，nor表示 也不”时的倒装(1)句首是neither，nor表示也不”时，主谓语需要倒装。t, either.I could n t solve the problem, n e
12、ither /nor could my brother.=I could n t solve the problem. My brother could nI did n t go to school, nor did Mary.=I did n t go to school. Mary did n t, either.so表示也是，同样”寸的倒装句首是so表示也是，同样时，主谓语需要倒装。Copper is a good con ductor; so is silver.Joh n failed in the exam; so did Mark.He takes part in sports
13、 activities, so do his classmates.I have bee n to the Temple of Heave n, so has she?平衡倒装There+be或其它不及物动词 come, go, happen, occur, stand, exist等结构中，为避 免句子头重脚轻，平衡倒装。There sta nds an old house that is being pulled dow n.There existed a hostile relati on ship betwee n the two families.There are many hob
14、bies involving the creativity of a pers on.Such/so句型ha中的倒装Such/so句型ha中such+名词或so+形容词，副词等位于句首时，主句中主谓倒装。So badly was he injured in the accide nt that he had to stay in the hospital for treatme nt?So excited was I that I did n t know what to say.比较状语从句中的倒装than引导的比较状语从句中，主从句谓语趋向中间以达到平衡，此时从句要求主谓 倒装。Nowad
15、ays, with the rapid developme nt of scie nce and tech no logy, man is less limited by n ature tha n were his forefathers/a ncestors.表频率的状语至于句首倒装表频率的状语至于句首，倒装。Many a time has he give n us sound advice?Twice a week does he go to visit his gran dpare nts?More tha n once have we heard him make such promises?As, though让步状语从句中倒装在以as, though引导的让步状语从句中，从句常用倒装语序，把表语或状语提前。（名，形，付，动词）Child that he is, he can dist in guish betwee n right and wrong.In tellige nt as/though you are, you should be modest.Much as I admire him, I don thi nk he is perfect. tTry
