2016-2017学年八年级英语下册Unit3OnlinetoursGrammar教案(

1、On li ne tours教学目标知识与能力：1. To understand the differencesbetween the simple past tense andthe prese nt perfect ten se.2. To grasp the expressi ons with the prese nt perfect ten se.3. To grasp the expressi ons with the simple past ten se.4. To un dersta nd differe nt uses of the prese nt perfect ten s

2、e.过程与方法：1.to discuss the differencesbetween the simple past tense and theprese nt perfect tense in groups.2.to show their results to the class.情感态度与价值观：To arouse the Ss en courage through discuss ing in groups.教学重点难点1.Toundersta ndthedifferencesbetween thesimple past tense and theprese nt perfect te

3、n se.2.Toun dersta nddiffere ntuses of theprese nt perfect ten se.教学活动内容活动组织过程改笔2Step 1 Revisio n完成句子。1.北京因万里长城而著名。Beiji ngthe Great Wall.2.这条河是个钓鱼的好地方。This river is afish ing.3. 我二天前听说过这件事。Ithis.4. 自从 2000 年起，他就在上海工作了。Hein Shanghai2000.Step 2 Presatati onTeach the new words.dream vi.& vt.做梦，梦想dream

4、 about/of想象；梦想e.g. Do you ofte n dream at ni ght?你在夜里经常做梦吗？I sometimes dream about my pare nts.我有时梦见我的父母。I dream of beco ming a teacher.我一心想当个教师。Step 3 Grammar expla nati onTran slate some senten ces.Da niel 两年前去了北京。(Da niel went to Beiji ng two years ago.)Dan iel 已经在北京居住两年了。(Daniel has lived in Bei

5、jing for two years.)to go over theprese ntperfect tense and tran slate somesenten ces.To lear n the new words and someexpressi ons.To discuss the differeneeCheck out the homework andpreview.Dosomeexercises,in clud ingthetwoten ses(thesimple past tense and3Tell the stude nts the differe nee betwee n

6、the simple past tense and the prese nt perfectten se.Difference: We use simple past tense to tell what happe ned in the past.We use the prese nt perfect tense to talk about an action that started in the past andcontinues to the prese nt.Exercises:1. 二年前他养了只猫做宠物。Hea cat as pet three years ago.2. 这只宠物

7、猫他养了三年了。Hethe pet cat for three years.Daniel 上个月头了台新电脑。Daniel bought a new computer last mon th.Daniel 已经头了台新电脑。Daniel has bought a new computer.(Da niel has a new computer no w.)Differe nces:We use the simple past tense to tell what happe ned in the past.We use the present perfect tense to talk abo

8、ut the resultof anaction .When the actio n happe ned is n ot very importa nt. It may have just happe ned orhappe ned some time ago.Exercises:1. 我上个星期去参观了那个新动物园。Ithat new zoo last week.2.我已经参观过那个新动物园了。Ithat new zoo.吴老师 2010 年和 2011 年访问过加拿大。betwee n the simple past tenseand theprese ntperfect tense in

9、 groups.Compare these senten ces.theprese ntperfectten se.).Discuss the differe ncesbetwee n the simple pasttense and the present perfectten se.4Mr Wu visited Canada in 2010 and 2011.吴老师已经去过加拿大两次。Mr Wu has bee n to Can ada twice.Differen ces:We use the simple past tense to tell what happe ned in the

10、 past.We use the prese nt perfect tense to tell how many times an action has happe ned till now.Exercises:1.我上周看过这部电影。Ithis movie last week.2.我已经看过这部电影很多次。Ithis movie many times.Step 4 ExercisesA. Amy is show ing Millie some pictures. Complete hersentences with thecorrect forms of the words in brack

11、ets.I(visit) the Palace Museum with my gran dpare nts the other day.I(climb) Mount Huang last Summer.you(try) the famous Tian ii n Baozi?I am happy that I(lear n) to swim.B.Mr Wuis asking the students to make sentences with the correct tenses. Help themcomplete the sentences with the correct forms o

12、f the words in brackets.1. I(fini sh/ just) my homework.Millie(fini sh) her homework 20 minu tes ago.2. I(write) an email to my frie nd yesterday.Daniel(write/ already) two emails.To know more about the differences betwee n the two ten ses.Complete these Exx.To get the Ss to say the53.1(be) in Haina

13、n last week.Some of our classmates(not be) to Hainan vet.4. I(live) in Sunshine Town since I was born.Da niel(live) in Nan ii ng in 2007.C. Millie has n ever bee n to Nanjing. She is ask ing Sim on about the city.Complete theirconversationwith the correctforms of the words inbrackets.Millie:(you/be/

14、ever) to Nan ii ng?Simo n: Yes. I(2)(be) there three times.Millie: When (3)(you/go) there last?Simon: Last summer. I (4)(spe nd) a week there.Millie: (5)(you/like) it?Simon: Oh yes. I (6)(have) a great time there. I (7)(visit)many places of in terest and (8)(eat) lots of local food.Millie: Lucky you

15、! I (9)(be/never) there.D.Millie is writing about the USA in her diary. Help her complete her diary en try with thecorrect forms of the verbs in the box.Saturday, 15 MarchHave you ever dreamt of travelling around the world without a passport?Yes, you can realize your dream by tak ing an on Ii ne tou

16、r. YesterdayDanniel (1)mean onIine tour of the USA. I (2)neverso many won derful pictrues before.Last week, I (3)a book about the places of in terest in the USA.I (4)20 pages already. Its really in terest in g.My dad (5)justfrom the USA, but I (6)neverthere. I hopeI can visit the USA some day.differ

17、e nces betwee n the twoten se.To get the Ss to lear nhow tousetimeexpressi ons.6Step 5 Notice1.We often use these time expressi ons with the prese nt perfect ten se:already up to now everun til/till nowjust so farrecen tly(not) yet2.some day 和 the other day的区别：the other day 相当于 a few days ago, 意为 几天

18、前、某天、那天、不久前,句中用一般过去时。如：I met her in the street the other day.几天前我在街上碰见过她。I bought the watch the other day.这手表我是几天前买的。some day 指将来 总有一天、有朝一日、终将、(日后)某一天，谓语动词用一般将来时.如：Your wishes will come true some day.总有一天你的愿望会实现的。Some day you ll have to pay for what you have done.总有一天你要为你的行为而付出代价的。Step 6 Summary1) 一

19、般过去时表示过去某时发生的动作或单纯叙述过去的事情，强调动作；现在完成时为过去发生的，强调过去的事情对现在的影响，强调的是影响。2)一般过去时常与具体的时间状语连用，而现在完成时通常与模糊的时间状语连用，或无时间状语。一般过去时的时间状语：yesterday, last week,ago, in 1980, in October,just, n ow等，皆为具体的时间状语。现在完成时的时间状语：for, since, so far, ever, n ever, just, yet,to discuss what tense to use different time expressi ons.

20、Con solidate the differe ncesbetwee n the two ten ses.7共同的时间状语：this morning,tonight,this April,now, already,recen tly, lately等。3）现在完成时可表示持续到现在的动作或状态，动词一般是延续性的，如 live,teach, lear n, work, study, know。一般过去时常用的非持续性动词有come, go, leave, start, die, fini sh,become, get married 等。句子中如有过去时的时间副词（如yesterday, l

21、ast, week, in 1960）时，不能使用现在完成时，要用过去时。（错） Tom has written a letter to his parents last night.（对）Tom wrote a letter to his parents last night.Step 7 Exercises1. Motherme a new coat yesterday. Iit on. It fits me well.A. had made - - have tried B. made have triedC. has made triedD. madetried2. Wetrees l

22、ast Sun day. So far weover 3,000 treesthere.A. pla nted ; pla ntedB. pla nted; have pla ntedC. have planted; planted D. have planted; have planted3. Ithe way. Ihere for quite many years.A. knew have livedB. knew liveC. know have livedD. know liveStep 8 HomeworkFinish off the exercises in workbook.8课

23、堂达标一、选择题。()1. I m sorry, Cathy, Iyour radio for such a long time.Never mind.A. have borrowed B. have lentC. have keptD. have returned()2. Where have youthese days?I haveto Yang zhou with my frien ds.A.been,goneB.been,beenC.gone, beenD.gone,gone()3. Where is your father? We havent seen each other for

24、 weeks.A. He has bee n to AmericaB. He has gone to En gla ndC. He is going to AustraliaD. He would visit my gran dpare nts()4. They havesince the factory opened.A. left the school B. jo ined the teamC. become workers D. worked here()5. Jimthe Great Wall many times.A. went toB. goes toC. has gone toD. has bee n to9板书设计8 下 Un it 3 On li ne tours Grammar1.Diff