高考英语考点：时态语态及情态动词复习
高考时态语态及情态动词复习动词I. 动词的时态：1. 动词的时态一共有16种，以ask为例，将其各种时态的构成形式列表如下：现在时过去时将来时过去将来时一般ask / asksaskedshall/will askshould/would ask进行am/is/are askingwas/were askingshall/will be askingshould/would be asking完成have/has askedhad askedshall/will have askedshould/would have asked完成进行have/has been askinghad been askingshall/will have been askingshould/would have been asking2. 现在完成时与一般过去时的区别：1) 现在完成时表示过去发生的动作或存在的状况，但和现在有联系，强调的是对现在造成的影响或结果，它不能同表示过去的时间状语连用，汉译英时可加“已经”等词。简言之，利用过去，说明现在。如：I have already read the novel written by the world-famous writer. (已经看过，且了解这本书的内容)2) 一般过去时只表示过去发生的动作或状态，和现在无关，它可和表示过去的时间状语连用，汉译英时可加“过”，“了”等词。简言之，仅谈过去，不关现在。如：I read the novel last month. (只说明上个月看了，不涉及现在是否记住)I lived in Beijing for ten years.（只说明在北京住过十年，与现在无关）3. 现在完成时与现在完成进行时的区别：两者都可以表示“从过去开始一直持续到现在”，在含义上如着重表示动作的结果时，多用现在完成时，如着重表示动作一直在进行，即动作的延续性时，则多用现在完成进行时。一般不能用于进行时的动词也不能用于现在完成进行时。I have read that book.我读过那本书了。I have been reading that book all the morning. 我早上一直在读那本书。4. 一般将来时的表达方式： 将来时用法例句1will/shall+动词原形表示将来发生的动作或存在的状态My sister will be ten next year.2be going to+动词原形含有“打算，计划，即将”做某事，或表示很有可能要发生某事Its going to clear up.Were going to have a party tonight.3be + doing 进行时表示将来go, come, start, move, leave, arrive等词可用进行时表示按计划即将发生的动作He is moving to the south.Are they leaving for Europe? 4be about to + 动词原形表示安排或计划中的马上就要发生的动作，后面一般不跟时间状语I was about to leave when the bell rang.The meeting is about to close.5be to + 动词原形表示按计划进行或征求对方意见Were to meet at the school gate at noon.6一般现在时表示将来时刻表上或日程安排上早就定好的事情，可用一般现在时表示将来The meeting starts at five oclock.The plane leaves at ten this evening.II. 动词的被动语态： 常用被动语态构成 常用被动语态构成1一般现在时am/is/are asked6过去进行时was/were being asked2一般过去时was/were asked7现在完成时have/has been asked3一般将来时shall/will be asked8过去完成时had been asked4过去将来时should/would be asked9将来完成时will/would have been asked5现在进行时am/is/are being asked10含有情态动词的can/must/may be asked注 意 事 项被动语态的否定式是在第一个助动词或情态动词后加not，短语动词的被动态不可漏掉其中介副词。固定结构be going to, used to, have to, had better变为被动态时，只需将其后的动词变为被动态。 如：Trees should not be planted in summer. The boy was made fun of by his classmates.Newspapers used to be sent here by the little girl.汉语有一类句子不出现主语，在英语中一般可用被动结构表示。如：It is believed that It is generally considered that It is said thatIt is well known that It must be pointed out that It is supposed thatIt is reported that It must be admitted that It is hoped that下面主动形式常表示被动意义：如：The window wants/needs/requires repairing. The book is worth reading twice.The door wont shut. / The play wont act. The clothes washes well. / The book sells well.The dish tastes delicious. / Water feels very cold.下面词或短语没有被动态：leave, enter, reach, become, benefit, cost, equal, contain, last, lack, fit, fail, have, appear, happen, occur, belong to, take place, break out, come about, agree with, keep up with, consist of, have on, lose heart等等 情态动词I. 情态动词基本用法：情态动词用法否定式疑问式与简答can能力（体力，智力，技能）允许或许可（口语中常用）可能性（表猜测，用于否定句或疑问句中）can not / cannot /cant doCando?Yes,can.No,cant.couldcouldnt domay可以（问句中表示请求）可能，或许（表推测）祝愿（用于倒装句中）may not do Maydo? Yes,may.No,mustnt/cant.mightmight not doMightdo? Yes,mightNo,might not.must必须，应该（表主观要求）肯定，想必（肯定句中表推测）must not/mustnt doMustdo? Yes,must.No,neednt/dont have to.have to只好，不得不（客观的必须，有时态人称变化）dont have to doDohave to do?Yes,do. No,dont.ought to应当（表示义务责任，口语中多用shouldought not to/oughtnt to doOughtto do?Yes,ought. No,oughtnt.shall将要，会用于一三人称征求对方意见用于二三人称表示许诺、命令、警告、威胁等shall not/shant doShalldo?Yes,shall. No,shant.should应当，应该（表义务责任）本该（含有责备意味）should not/shouldnt doShoulddo?will意愿，决心请求，建议，用在问句中would比较委婉will not/wont doWilldo?Yes,will. No,wont.wouldwould not/wouldnt dodare敢（常用于否定句和疑问句中）dare not/darent doDaredo?Yes,dare. No,darent.need需要必须（常用于否定句和疑问句中）need not/neednt doNeeddo?Yes,must. No,neednt.used to过去常常（现在已不再）used not/usednt/usent to dodidnt use to doUsedto do?Yes,used. No,use(d)nt.Diduse to do?Yes,did. No,didnt.II. 情态动词must, may, might, could, can表示推测：以must为例。must + do(be)是推测现在存在的一般状态进行；must + be doing 推测可能正在进行的事情；must +have done是推测可能已经发生过的事情。1. must“肯定，一定”语气强，只用于肯定句中。He must be a man from America. / He must be talking with his friend. / He must have already arrived there.2. may和might“也许”，后者语气弱，更没有把握。可用于肯定句和否定句。He may not be at home. / They might have finished their task. 3. can和could“可能”，could表示可疑的可能性，不及cant语气强，用于肯定、否定、疑问句中。The weather in that city could be cold now.We could have walked there; it was so near.（推测某事本来可能发生，但实际上没有发生）Can he be in the office now? No, he c
