高中英语 Unit4 Cyberspace Lesson3 Virtual Reality导学案 北师大版必修2.doc

unit 4 lesson 3 virtual reality导学案目标：to practise using first and second conditionals.to assess whether websites are real.课前 自主预习i:重点词组1.目的地n. _ 2.肉，肉体n._ 3.历史的，有关历史的 adj._ 4.收拾行李，打包 vt._ 5.百万富翁 n._ 6.吸烟者n._ 7.非吸烟者n._ii:重点短语1.为.作计划_ 2.依靠，依赖 _ 3.帮助某人做某事_ 4.在.方面有问题_5.而且，此外_ 6.本人，亲自_7.去环球旅行 _ 8.不但.而且. _9.有机会做. _ 10.受.欢迎 _11.嘲笑 _iii:重点句子1.i have lots of work to do . do you have anything planned for saturday and sunday?2.if i dont finish my project n the history of the internet for next days lesson ,the science teacher will be angry.3.just think , if we had virtual reality holiday , we wouldnt have any problems with the weather.4.whats more ,we wouldnt have to spend a long time travelling on planes to get to our holiday destinations.5.if i were a doctor in african , i would help a lot of people.课堂 互动探究核心词汇 讲练悟1.tom, can you suggest any good books for my project?suggest v. 在句中意为“建议,提议”, 后面可以直接跟宾语。如:mike suggests a visit to huangshan this weekend.our teacher suggested a wonderful film to us.i suggested going for a walk after dinner.suggest后接宾语从句时, 要用虚拟语气, 即should + do, should可省略, 但不能换用其他情态动词。my sister suggested that i should accept the invitation. suggest还可意为“暗示,表明”, 后面接的宾语从句不用虚拟语气。如:the smile on his face suggested that he was glad to be of some help. eg: how do you _ we go to beijing for our holidays? i think wed better fly there. its much more comfortable. (2004年,福建卷) a. insist b. want c. suppose d. suggest答案：d2. we wont have to go there in the flesh at all! in the flesh 本人 ive got all her records but ive never seen her in the flesh. his appearance in the flesh ended the rumor about his death.ive got all of jay chous records, but ive never seen him in the _ (肉体). 答案：flesh语法训练虚拟语气的“四种形式”及“三点注意”虚拟语气，作为日常交际应用中常常会出现的一种语言现象，一直是高考题几乎年年都要考到的一个热点。但对于中国学生来说，它又是一个难点。无怪乎许多学生学完虚拟语气后，常常会叹道：if there were no subjunctive mood, english _ much easier. a. will be b. would have been c. could have been d. would be 答案：d时间谓语动词的虚拟形式从句主句现在动词过去式（be 多用were）would / should / could / might + 动词原形 过去had + 过去分词would / should / could / might + have + 过去分词将来动词过去式或 should / were to + 动词原形would / should / could / might + 动词原形1.the rice _ if you had been more careful. a. would not be burning b. would not burn c. would not have burnt d. would not burnt2.if my lawyer _ here last saturday, he _ me from going. a. had been ; would have prevented b. had been ; would prevent c. were ; would prevent d. were ; would have prevented3.i didnt see your sister at the meeting. if she _ she would have met my brother. a. has come b. did come c. came d. had come4._ for the free tickets, i would not have gone to the films so often. a. if it is not b. were it not c. had it not been d. if they have not5.you didnt let me drive. if we _ in turn, you _ so tired. a. drove ; didnt get b. drove ; wouldnt get c. were driving ; wouldnt get d. had driven ; wouldnt have got答案：cadcd（一）、含蓄条件句 含蓄条件句就是虚拟条件暗含在短语或上下文中，从句不表现出来。这时，必须根据句中表述的意义以及某些特定的信息词，并依据前文所列举的四种现象，来判断此时须采用的形式。1.without electricity, human life _ quite different today. a. is b. will be c. would have been d. would be 2.yesterday jane walked away from the discussion. otherwise, she _ something she would regret later. a. had said b. said c. might say d. might have said 答案：dd（二）、时间错综句 从句与主句或上下文所表述的时间不一致。在这种情况下，我们切不可照搬某种形式，而应该按照句中所表述的时间关系，再选择相应的虚拟形式。例如：if you had worked hard yesterday, you would be tired now.1.if the flower had been watered, it _ now. a. wouldnt die b. is dead c. had been dead d. will not die2.if his television set had not been stolen yesterday, he _ tv now. a. would watch b. would have watched c. would be watching d. is watching答案：ac达标同步检测i.根据课文内容及所给的汉语或英语提示,写出与句意相符的单词。cathy has a lot of work to do this weekend. if she 1. _ (not finish) her project 2. _ (介词) the history of the internet for next mondays lesson, the science teacher 3. _ (be) angry. she asked tom if he could suggest some good books 4. _ (介词) the project. tom advised her 5. _ (use) the library computer. tom will probably go camping this weekend if the weather 6. _ (be) good. if it rains, he 7. _ (not go). cathy said, in the future, we 8. _ (能够) use modern technology to go anywhere we like at any time. if we had virtual reality holidays, we 9. _ (not have) any problems with the weather either. that could be really exciting! you could go on an tour around the world 10. _ (介词) leaving your room, tom replied.ii 单句改错。1. which website you think is real?2. would you bring me a bench to sit?3. he suggested i changed the topic of the speech.4. he said that it was depended on the weather whether we would go for a picnic.5. if i wont finish my project on the history of the internet for the next mondays lesson, the science teacher will be angry.6. not only he but also i are interested in science.7. i found that quite pleasant to work with him.8. thank you for your help, i wouldnt have succeeded with your help.9. if i had enough money, i would have bought it .10. you would make fewer mistakes if you are more careful next time.iii. 单选。1. the chairman thought _necessary to invite professor smith to speak at the meeting.a. that b. it c. this d. him2. i wont lend my bike to you _ you promise me it will be kept clean. a. when b. because c. unless d. if3. as there was no food in the fridge, i suggested that we _ out.a. will eat b. ate c. eat d. had eaten4. he always gets up early and goes to bed late. his success _ his hard-work.a. depends on b. keeps away c. gets over d. learns from5 .the doctor advised vera strongly that she should take a holiday, but _didnt help.a. it b. she c. which d. he6. he looks nicer _ than in his photos.a. in flesh b.in the flesh c.in his flesh d.in a flash7. her red face suggested that she _ to us.a. lied b.has lied c lie d. had lied8. youve come late for school and _ , youve lost your books.a. whats more b. however c. history d. historian9. kate, how about watching the stars? its so lovely tonight._. lets meet at the corner of the street. a. thats so kind of you b. not at allc. good idea d. it depends10. i suggest that we _ artificial scenery if we want our tourism industry to grow.a. cant use b. dont usec. not use d. not using 11. he hesitated for a moment before kicking the ball, otherwise he _the goal.a. had scored b. scored c. would score d. would have scored12. had i got back 5 minutes earlier, i _ him.a. would see b. had seen c. would have seen d. saw13. _ it rain tomorrow, we would have to put off the visit to the yangpu bridge.a. was b. should c. would d.will14. you didnt let me drive. if we _in turn, you _ so tired.a. drove; didnt get b. drove; wouldnt getc. were driving; wouldnt get d. had driven; wouldnt have got15. i _ sooner but i didnt know that they were waiting for me.a. had come b. was coming c. would come d. would have come16. if you _ that late movie last night, you wouldnt be so sleepy.a. havent watched b. hadnt watched c. didnt watch d. wouldnt have watched17. but for their help, we _ the program in time.a. can not finish b. will not finish c. had not finished d.could not have finishediv. 阅读 abesides the millions of sites to visit and things to do, the internet offers lots of ways to get into trouble. just as in the real world, some people you meet online might try to take advantage of(利用)you. the key is to keep yourself safe while online. remain anonymous (匿名的). that means keeping your personal information secret. the people and companies you can trust will never ask for your personal information online. so if someone does, you must be careful. think carefully before you create an email address or screen name. web experts suggest that you use both letters and numbers. in chat rooms, use a nickname (别名) thats different from your screen name. so, if you want to stop an uncomfortable conversation, you can leave and dont have to worry that someone knows your screen name or follow you through email. experts suggest that people keep online friendships in the virtual world. meeting online friends face to face carries more risks than other types of friendships. you can not see or talk with them in person, so its easy for them to pretend to be something theyre not. if you ever get involved in a chat room conversation that makes you feel uncomfortable or like you might be in danger for any reason, leave immediately and tell your parents or other adults right away so that they can report the conversation.1. why do web experts suggest using both letters and numbers to create an email address?a. it makes a conversation more comfortable.b. you can exit if you dont want to talk. c. email addresses can be guessed from screen names. d. you will not waste a lot of time chatting.2. meeting online friends has more risks because _. a. it is difficult to keep online friendshipb. they will learn your personal informationc. the information others give you may mislead you d. you may feel uncomfortable in a conversation3. the passage mainly talks about _.a. how to be safe on the internet for teens b. how to stop an uncomfortable conversationc. how to create a safe email address d. how to keep online friendship bthe word success means different things to different people. for example, hector may think success lies in helping others by developing a new medicine to cure a disease. laura might regard success as being a sports star, while roz thinks of good grades at school when she thinks of success. theyre all correct. success includes all these things, and more. american poet ralph waldo emerson described success as, to laugh often and much; to win the respect of intelligent people and the affection of children; to earn the appreciation of honest critics and stand the betrayal of false friends; to appreciate beauty; to find the best in others; to leave the world a bit better, whether by a healthy child, a garden patch, or a redeemed social condition; to know that even one life has breathed easier because you have lived. this is to have succeeded. many people consider success as bigger, faster, better as in: bigger house, faster car, or better school. is that really success? adding to the happiness and success of others is an important part of anyones personal success. in my opinion, success is learning how to set and achieve goals, how to think of your progress toward reaching them, and the importance of helping others. it means avoiding excuses , taking responsibility (责任), and learning how to overcome (克服) difficulties. success lies in answering yes to this question: did i give my best effort today? this is your life, and these are your goals! try to achieve t