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1、Unit 5Unit 5 Educational exchanges Educational exchangesModule 3 Culture and historyGrammarSituationPay attention to the circled words.present perfect tense:have/has+been/V-edLets learn more examples.现在完成时(The Present Perfect Tense)表示过去的动作或状态持续到现在并且已经完成，对现在造成的影响，可能持续发生下去。futurepresentpastcleaned tee
2、thMum,I have already cleaned them.John,clean your teeth please.二、现在完成时态的构成：have/has 动词过去分词规则动词的过去分词形式变形规律例子一般直接在词尾加上-edlooklooked；postposted以e结尾的动词，直接加-dmovemoved；useused辅音字母 y结尾，变y为i再加-edcarrycarried重读闭音节单词需双写末尾辅音字母，再加-edstopstopped；planplanned不规则动词的过去分词形式需要牢记不规则动词表；不规则动词的变形也有一些规律 不规则动词请写出下列不规则动词的过
3、去式和过去分词。do _ _ Be_ _ learn _ _ teach_ _ spend_ _ didwas/werelearned/learnttaughtspent donebeen learned/learnttaughtspenthave_ _ keep _ _ make_ _ see _ _ come_ _ win _ _ find _ _ go _ _ run_ _ sell _ _ had kept made sawcame wonfoundwenransoldhad kept madeseencomewon foundgonerunsold1.I _ _(learn)to u
4、se chopsticks,and theyre teaching me a little Chinese.2.It _ _(be)a fantastic experience so far.3.We_ already _(learn)a lot about Chinese culture and history.4.The teachers _ _(introduce)us to Chinese painting as well.5.We_ also _(try)to paint some pictures ourselves.6.I _ _(not have)much success ye
5、t,but Ill keep trying.7.I _ _(make)many new friends.ve learnts beenve learnthave introducedve triedhavent hadve madego Ready?三、现在完成时态的时间状语现在完成时的常见时间状语有for,since,so far,by now,ever,never,just,yet,in the pastyears等。Weve learnt 3，000 words so far.They havent finished their task yet.He has collected 500
6、 stamps since ten years ago.The young men have travelled 10 countries in the past ten years.四、几组易混淆词的用法辨析1already&yetalready常用于肯定句；yet常用于否定句和疑问句。Tom has already finished his homework.Tom hasnt finished his homework yet.Have you seen the Great Wall yet?请用already和yet完成下列句子。(1)Have they begun Unit 11_？
7、(2)He has left the office_(3)I have_ finished my homework.(4)Their parents havent come back_yet alreadyalreadyyet2ever&never ever,never常用于助动词have,has的后面，实义动词的前面。ever意为“曾经”，never意为“从不”。请用ever和never完成句子。(1)Have you_ been to Beijing?你去过北京吗？(2)She has_ seen a panda.她从没见过熊猫。evernever3区分：have/has gone to;
8、have/has been to;have/has been in have/has gone(to)sp.表示某人“已经去某地了”，说话时此人可能在路上或已到那里。have/has been(to)sp.表示“曾经到过某地”，说话时此人已经回来。have/has been in sp.for some time 表示“某人到某地去了，现在人还待在那里”。Jim has gone to London with his family.Jim has been to London twice.Jim has been in London for two weeks.Kitty,can you ta
9、ke our workbooks here?They are in my office.OK.区分区分have/has been tohave/has been to和和have/has gone to have/has gone to Where has Kitty gone?She has gone to the teachers office.Where have you been,Kitty?I have been to the teachers office.class teachers officeclass teachers office 表示“去了(已归)”“去过(已归)”表示
10、“到去了(未归)”请用have/has gone to;have/has been to或have/has been in 完成下列句子。(1)_ _ _ _ _ y o u _ _ _ _ _ _ _ _ _ En gla n d?N o,n e v e r.(2)He came to Shenzhen in 1994.He_ _ _ Shenzhen since 1994.Havebeen tohas been in(3)How long_ they_ _ Beijing?For one month/Since last month.(4)Where have you been?I_ _
11、_ the toilet.(5)She isnt here.She_ _ _ the shop.She_ _ _ the shop for two hours.havebeen inhave been tohas gone tohas been in五、现在完成时态的基本句式基本句式例句肯定句：Sb.have/has 过去分词 其他I have learnt to use chopsticks.否定句：Sb.have/has not或者缩写havent/hasnt 过去分词 其他We havent received a letter from him.He hasnt replied to m
12、y e-mail.基本句式例句疑问句：Have/Has sb.过去分词 其他？肯定回答：Yes,sb.have/has.否定回答：No,sb.havent/hasnt.Have you learnt to use chopsticks?Yes,I have.No,I havent.特殊疑问句：特殊疑问词 have/has sb.过去分词 其他？What has he learned in the college？六、现在完成时与一般过去时的区分 现在完成时和一般过去时都表示在过去发生的动作，但现在完成时强调的是这一动作与现在的关系，如对现在产生的影响或者状态延续到现在，强调的是现在，常与sin
13、ce，for，just,ever,never,before,already,yet,so far 等连用。一般过去时只表示动作在过去某一时刻发生，过去发生的动作与现在没有联系，常与表示过去的时间状语，如：yesterday,last year,three days ago,just now等连用。I have lost my new watch.我把新手表丢了。(现在还没找到)I lost my new watch yesterday.我昨天把新手表丢了。(现在找到与否不清楚)(1)I_(study)history for two years.(2)I_(have)a history less
14、on yesterday.(3)I_(learn)a lot about Greek history.What do you want to know?(4)I_(read)the story of the Trojan War last week.have studied hadhave learntread现在完成时表示过去发生的动作与现在有关，指过去的动作对现在造成的影响、结果等。already,yet,ever,never现在完成时肯定句：主语+have/has+V-ed+其他否定句：主语+havent/hasnt+V-ed+其他一般疑问句：Have/Has+主语+V-ed+？肯定答语
15、：Yes,主格代词+have/has.否定答语：No,主格代词+havent/hasnt.构成 定义 标志词一、用括号中动词的正确时态填空。1I_(meet)my first teacher in the park just now.2Many people_(lose)their homes in the war.3He_(finish)his homework,so he can watch TV now.4I_(keep)this dictionary for two weeks.I should give it back to the library.metlosthas finish
16、edhave kept5I_(begin)to learn English when I was young.6 The war lasted 10 years,and finally,the Greeks_(capture)the city.7_ you ever_(see)the movie?8She_(join)a club in her school two weeks ago.9I_not_(read)the book yet.10.My brother_(live)here since he was born.begancapturedHaveseenjoined haveread
17、has lived二、单项选择。()1.Does Mr.Dong live in Kowloon Walled City?Yes.He actually there since he was very young.Ahave；lived Bhas；lived Chas；livingB()2.He to draw horses already.When he learn it?Alearned；did Bhas learned；has Chas learned；didC()3.Do you know Yao Ming,the basketball player?Of course!I a lot
18、 of news about him on TV so far.Aread Bam reading Chave read C()4.Its 7：30.I cant believe you cooking dinner yet,Sandy.I returned home a minute ago.Adidnt start Bhavent started Cwont startB()5.Where is Suzy?She isnt here now because she the zoo.Ahas been to Bhas gone in Chas gone to C()6.Though the
19、Greens Guilin twice,they still want to go there.Guilin is really a fantastic place.Ahave been to Bhave been in Chas been inA三、语法填空。Can you live without a home,food or clothes?Very few of us can,but Robinson Crusoe did it in the novel 1._(write)by Daniel Defoe.written In the story,Crusoe got on 2._ i
20、sland alone after a shipwreck(海难)Being alone on that island,Crusoe experienced a lot of 3._(difficulty)However,he 4._(dont)lose hope.Instead,he tried his 5._(good)to survive(生存).He got water,food and some tools from the wrecked ship and built himself a house on the island.He even 6._(grow)barley(大麦)
21、and raised a few goats.Soon his life there was just fine.andifficultiesdidntbestgrew He didnt know that there were other people until one day he 7._(find)the marks of another mans feet on the island.Not long after that he saw some cannibals trying to kill and eat two men.He saved one of them and 8._
22、(name)him Friday.They stayed together after that and became good 9._(friend)Luckily,some other people came to this island and Crusoe went back to his hometown with these people.foundnamedfriends Up to now,this book 10._(be)very popular with all ages around the world.People admire Crusoe for his bravery and courage.has been