（新课标）2019_2020学年高中英语Unit3ComputersSectionⅢLearningaboutLanguage教案新人教版.docx

Section Learning about Language现在完成时的被动语态新知导引1(教材原句P18)Over time I have_been_changed (change) quite a lot.2(教材原句P18)Since the 1970s many new applications have_been_found (find) for me.3(教材原句P18)I have_been_used (use) in offices and homes since the 1970s.4The ink has_not_been_removed from the clothes.5Havent your problem been solved?6How many buildings have_been_built in your school?共性呈现1以上几句中的时态和语态是 现在完成时的被动语态。2以上几句中第句是该时态的 肯定句式；第句是 否定句式；第句是 一般疑问句式；第句是 特殊疑问句式。语法精释一、结构肯定式主语have/has been done.否定式主语have/has not been done.一般疑问式Have/Has主语been done.？特殊疑问式疑问词have/has主语been done.？He has been selected to take part in the sports meeting.他已被挑选出来参加运动会。The ink has not been removed from his overcoat.墨迹还没有从他外套上去掉。Has the date for the next meeting been decided?下次会议的日期已决定了吗？How long has the battery not been changed?电池多久没有更换了？即时演练1变换句子The children have already been told the good news.(1)将上面的句子变为否定句。The_children_havent_been_told_the_good_news_yet.(2)将上面的句子变为一般疑问句。Have_the_children_been_told_the_good_news_yet?(3)将上面的句子对the children进行提问。Who_has_been_told_the_good_news_yet?二、用法1现在完成时的被动语态同它的主动语态一样，强调过去的动作对现在造成的影响或结果，通常与already, yet, just, never, recently等副词连用。The machine has already been repaired.机器已经修好了。2表示一个被动的动作或状态开始于过去，持续到现在，并可能持续下去，常与for或since引导的时间状语连用，或用于“How long.？”句型中。Financial problems of the company have been discussed for nearly two hours.公司的财务问题已被讨论了近两个小时了。How long has this film been shown?这部电影已放映多长时间了？3用在时间或条件状语从句中，表示将来某时已完成的动作，即用现在完成时的被动语态代替将来完成时的被动语态。You shouldnt leave school before your homework has been finished.在你的作业没完成之前你不应该离开学校。名师点津常与现在完成时连用的时间状语：already 已经 yet 已经recently/lately 最近since then 从那时起ever since 自那以来ever 曾经so far 迄今为止for a long time 很长一段时间by now 到现在为止in recent years 在最近几年里in/during/over the past/last years 在过去的几年里即时演练2(1)用现在完成时的被动语态改写句子Jacks boss has always praised him for his devotion to work.Jack has_always_been_praised by his boss for his devotion to work.They have found a good place to build a temple in the village.A good place has_been_found to build a temple in the village.We havent yet decided how to solve that difficult technological problem.How to solve that difficult technological problem hasnt_been_decided yet.(2)补全句子I will go home when my homework has_been_finished.当我的家庭作业完成时我就回家。Paper money has_been_used for over one thousand years.纸币已被使用了1,000多年了。三、注意事项1只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。His boss has already punished him.He has already been punished (by his boss)2带有双宾语的动词，如give, send, bring, take, teach, show, tell, make, sing, write, read, sell, buy, pay, lend, pass, promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。The company has given him a chance to work abroad recently.He has been given a chance to work abroad recently (by the company)A chance to work abroad has been given to him recently (by the company)即时演练3将下面句子变为被动语态(1)I have asked her to help you.She_has_been_asked_to_help_you.(2)We have planted many trees on the hill in the last 5 years.Many_trees_have_been_planted_on_the_hill_in_the_last_5_years.(3)He has sent me an email.I_have_been_sent_an_email.An_email_has_been_sent_to_me.单句语法填空1Their new house has been decorated (decorate) for two months and they will settle in it in the near future.2All the athletes have_been_selected (select) from millions of people all over the country in the past two months.3A new library in our school has_been_set (set) up so far and they will be put into use very soon.4A great many machines have_been_produced (produce) by the factory since the technological revolution.5Great changes have_taken (take) place in my hometown and you can see that a lot of factories have_been_set (set) up.6Its the first time that the old computer has_been_checked (check) since I bought it.7Since your work has_been_finished (finish), you can have a rest now.8More than 100 famous films have_been_shown (show) in the city since July.9Toms novel has not been_published (publish)10Three new schools have_been_opened (open) in our city in the past five years.语法与写作1The_boys_have_been_told_many_times (男孩们已经被多次告知) not to swim in that lake, but it doesnt make any difference.2We are glad to be told that Li Tao has_been_admitted_to_Fudan_University (已经被复旦大学录取) for his top score in the Maths Contest.3With the help of high technology, more and more new materials have_been_discovered (已经被发现) in the past years.4When and where to go for the onsalary holiday has_not_been_decided (没有确定) yet.5Though we dont know what was discussed, yet we can feel the topic has_been_changed (改变了)6Peoples health has_been_greatly_affected (受到了很大的影响) by air, noise and water.语法填空As a student in college, getting your first car 1._ (be) an exciting event. However, since students 2._ (general) do not have any experience in buying cars, its a good idea to do some research first. Here are some useful 3._ (suggest) for students on buying a car.Firstly, you need to take costs 4._ consideration. Some cars break down more often than others and need much money, so make sure to remember this when 5._ (choose) a car.If you cant afford insurance, then you might not be ready 6._ (buy) a car. If you shop around, you may be able to find a better price than just going along with 7._ first company you contact. Ask about good student discounts(折扣)many insurance companies offer a 8._ (low) rate if you have good grades.If you do a lot of driving, 9._ will be in your best interests to pick a car that saves gas.Be sure to read the contract (合同) and check 10._ there are any unexpected costs. If you dont understand something, ask!【语篇解读