词形变化( WordForm )应试技巧
So far， Irving ______(live) in New York City for ten years. has lived
Many a writerof newspaper articles_______(trun) to writing novels during the past decade.has turned
Some peoplethink relations between people _______(deteriorate) so much that understandingand friendship are almost impossible . have deteriorated
Nearly a weekpassed before the girl was able to explain what _______(happen) to her.
In the pasttwo decades， research _____(expand) our knowledge aboutsleep and dreams . has expanded
The nationsthat _______actively ________(involve) in earthquake prediction programsinclude Japan， Russia， and theUnited States. are involved
There__________(estimate) to be more than 20，000 overseasdomestic servants working in Brtain in 1995. were estimated
If you hadcome earlier， you ______ (not miss) the first act ofthe play.
would not havemissed
If it hadn‘t been for your help， we _____(be) in realtrouble.
B.在表示建议、命令、要求以及表示“重要性”和“紧迫性”等含义的主语从句、宾语从句、表语从句和同位语从句中，谓语动词常用虚拟语气，由“动词原形”或“should + 动词原形”构成。 should 常常省略
I wouldrecommend that you _______(think) about doing something similar for yourself.(should) think
It wasimperative that students ______(finish) their papers before July 1st.
C.动词wish 、would rather (sooner)、if only、as if 后的虚拟语气。
I would ratherhe _____(buy) the house next year.
bought ( 表示从句中动作尚未发生)
She treats meas if I ______ (be) a stranger. were
The managertold us to be friendly to the visitors as if we _____( meet) them before.
If only we______(have) a phone！ I‘m tiredof waiting outside the public phone box.
D.in case ， for fear that ， lest 等词后从句的谓语动词为(should) + 原形。
He took hisumbrella with him lest it _______ (rain.)
E.在It is (high) time that 从句中谓语动词一般用过去时动词。
It‘s high time that we _______(take) firm measures to protect ourenvironment. took
If we had setout earlier，we wouldn‘t bewalking in the rain.
不定式作定语：Ifthere is no choice， there is no decision ______(make)to be made
不定式作宾语： Robots， already taking over human tasks in the automotivefield， are beginning ________(see) . to be seen
不定式作宾补 Inotice him _______( leave ) the classroom. leave (可省略to)
不定式作主补：Theywere often compelled ______(work) twelve or fourteen hours a day.
to work( 不可省略to)
We make them(to) work day and night. 不定式作宾语补语，在有些动词后可以省略TO
They are madeto work day and night. 不定式作主语补语时，不可省略TO
分词作定语：Anyone______(want) to understand the industry of the future will have to know aboutrobotics. wanting
As researchtechniques become more advanced， the number of animals_____(use) in experiments may decrease. used
分词作状语： When______(present) with a common case， sales managers tendto see sales problems and production managers see production problems.presented
________(tell) that some guests were coming ， she shopped allmorning in the supermarket. Having been told
Her body， with hands and feet _______(bind) ， wasdiscovered by a traveler early in the morning. bound
分词做宾补： Theymay have their passports ______(remove) ， makingleaving or “escaping” actuallyimpossible. removed
动名词作宾语：If youcannot understand ， ask： “Would you mind ______(rephrase) the question ， please ？” rephrasing
If we don‘t start out now， we must risk ______(miss)the train.
The more timeyou waste， the _____(easy) it is to continue wastingtime.easier
As Jane wasthe _____(old) ， she looked after the other children inthe family. eldest
The explorerswere puzzled over what to do next because they were in a _____(trick)situation.
These electricappliances are all similar in construction but each one is _____(specialize) inits function.
specialize 是动词，应把它变为形容词 specific或 special