基于情境的英语语法教学基于情境的英语语法教学第十一章第十一章 动词的语态动词的语态 What has changed in the classroom?guessing gamelead inlead inhave / has beendone(过去分词过去分词)1.1.The lights The lights have been turned off.have been turned off.2.The blackboard2.The blackboardhas been cleaned.has been cleaned.3 3.The door.The doorhas been has been closedclosed. .4 4.The windows .The windows hahaveve been been openedopened. .5 5.The floor .The floor has been has been cleanedcleaned. .现在完成时表示动作现在完成时表示动作发生在过去发生在过去, 到到现在现在已经完成已经完成或或对现在仍有影响对现在仍有影响。 注：现在完成时注：现在完成时pastpresentfuture标志词：标志词：already，so far，yet，lately/recently，these days/years/weeks，since+时间点，for+时间段等。 现在完成时现在完成时的被动语态的被动语态强调一个强调一个发生在过去发生在过去的的被动性被动性动作持续到现在或对现在造成的影响或结果。动作持续到现在或对现在造成的影响或结果。其构成是其构成是: have/has been + done。例如：例如： 1. The dirty clothes have been washed. 脏衣服都已经洗了。脏衣服都已经洗了。 2. The plan has been studied by the experts for three times. 这项计划已经由专家研究过三次了。这项计划已经由专家研究过三次了。现在完成时的被动语态现在完成时的被动语态 Can you make more sentences, using “have/has been done” ?Practice I Tall buildings (build) everywhere. have been builtShopping centers (build)(build). .have been builtSome factories (set up) to improve economies. have been set upeconomy knm n. 经济；节约；理财The road _(widen).has been widenedMore dustbins ( place)on the streets.dust 灰尘bin 箱子，容器；dstbnhave been placedMore and more trees and flowers ( plant)on the either side of the roads.have been plantedimprove memoryimprove memoryTall buildings (build) everywhere. have been builtShopping centers (build)(build). .have been builtSome factories (set up) to improve economies. have been set upThe road _(widen).has been widenedMore dustbins ( place)on the streets.have been placedMore and more trees and flowers ( plant)on the either side of the roads.have been plantedPractice II：Correct the sentencesCorrect the sentences1.Great changes have been taken place in my hometown.2. Many measures (措施措施) have taken. 3.Citizens have been request not to throw rubbish and litter everywhere. requested4.The number of cars have been limited to reduce our pollution. has5.More and more people has sensed the importance of the environment protection. have 6.People have became responsible for building a beautiful hometown. become been I used to live in a small town with trees I used to live in a small town with trees around. There were no tall buildings and around. There were no tall buildings and the streets were narrow. But in recent the streets were narrow. But in recent years, great changes years, great changes (take (take place) in my hometown.place) in my hometown. Great Changes in My Hometown Great Changes in My Hometownhave taken placehave taken place Tall buildings (build) everywhere as well as shopping centers.Also some factories (set up) to improve economies.Roads (widen).In order to keep the city clean and tidy, many measures (take). have been builthave been builthave been set uphave been set up have have been widened been widened have have been takenbeen taken Citizens (request) not to throw rubbish and litter everywhere. Therefore, more dustbins (place)on the streets. More and more trees and flowers (plant) on the hills and either side of the roads.have been requestedhave been requestedhave been placedhave been placedhave been plantedhave been planted In addition,the number of cars (limit) to reduce our pollution. More and more people (sense) the importance of the environment protection and (become) responsible for building a beautiful hometown in a few years.has has have sensedhave sensedhave becomehave become been limited been limited memory challenge memory challenge I used to live in a small town with trees around. There were no tall buildings and the streets were narrow. But in recent years, great changes (take place) in my hometown. Tall buildings (build) everywhere as well as shopping centers. Also some factories (set up) to improve economies. Roads (widen).In order to keep the city clean and tidy, many measures (take). Great Changes in My Hometown Great Changes in My Hometown Citizens (request) not to throw rubbish and litter everywhere. Therefore, more dustbins (place)on the streets. More and more trees and flowers (plant) on the hills and either side of the roads. In addition,the number of cars (limit) to reduce our pollution. More and more people (sense) the importance of the environment protection and (become) responsible for building a beautiful hometown in a few years.How has the place changed?Use these words:add, change, open, paint,put, turn on, take away,The windowThe capThe lightThe basketballThe sweaterThe paintingTwo chairsThe booksThe disheshave/has beenhomework (1)homework (1)Correct the sentences1. A personal computer has bought by us.2. Many problems has been found with our new computer.3. A PC has been builded the way we wanted.4. Our computer just has been joined to the Internet.5.The computer had used every day since we bought it.6. A lot of e-mails had written on the computer in the past 5 years. homework (2)homework (2)answers：1.A personal computer has been bought by us.2.Many problems have been found with our new computer.3.A PC has been built the way we wanted.4.Our computer has just been joined to the internet.5.The computer has been used every day since we bought it.6.A lot of e-mails have been written on the computer in the past 5 years.