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1、Welcome to Welcome to our school!our school!Unit 1 Revision (1)-by Huang Bai-sheng Each group should finish your task in 1 or 2 minutes Group 1:l1、过去曾经做过某事l2、九龙城l3、历史课题l4、事实上l5、结婚used to do sththe Kowloon Walled City history projectin factget marriedl1、搬到（出）某地l2、变化很大l3、在过去l4、变成l5、中药店move to(out of)s
2、pchange a lotin the pastturn/change intoChinese medicine shopsGroup 2:l1、噪音污染l2、起飞l3、安全着陆l4、感到寂寞l5、时常noise pollutiontake offland safelyfeel lonelyfrom time to timeGroup 3l1、从某种程度上说 l2、独立地l3、收到的来信l4、投入使用l5、不再 in some wayson ones own/by oneself hear from /get(receive)a letter from.be in use/service no
3、 more/longer ;not any more/longerGroup 4Try to finish the sentences with the right forms of the phrases you have just met Dont you want to be the best?Have a try!n1.My father _ be a history teacher.n2.The plane always makes a big noise when it _n3._ you _ your parents yet?Yes.I received it yesterday
4、.n4.My parents _ 17 years ago.n5.We must finish our homework _n6.The old feel lonely _ because its difficult to see their good friends .used totakes offHaveheard fromgot marriedon our ownfrom time to timei!I am your best friend Present perfect tense.Lets play some games!Game 1:for or since1.We have
5、lived here _ 1990.2.How long have you studied here?_ 5 years.3.The boy has had a bad cold _ last night.4.Mr.Huang has kept the books _ a week ago.5.I have taught in the school _ I came here.6.We have been friends _ a long time.sinceForsincesincesinceforfor后面应该接“段时间”；since后面应该接“点时间”或者“句子”。关键点：、知道什么是“
6、段时间”或者“点时间”；、since引导的从句通常采用“一般过去时”Game 2:火眼金睛改错l.Where have you ever gone?The Lantau Island.l.We have been to the USA for many years.l.-How many times have you been in Hong-shan Zoo?-Twice.l4.-Where is your mother?-She has been to America.-been-in-to-gone1、知道have/has been（to）、gone（to）、been（in）三者 之间的
7、根本区别根本区别：have/has been to 表示当事人曾经去过去过某地 have/has been in 强调当事人在某地待过待过一段时间 have/has gone to 说话时当事人不在现场，去了去了某地 2、三者的常见用法 been(to)+地点+次数 been(in)+地点+段时间/句子 gone(to)+地点3、共同点共同点当后跟地点是副词时，介词省略Game 3:1.He _(know)the city since he was very young.2._ you _(see)my watch?Yes,I _(see)it on your desk five minute
8、s ago.3.Last night,it _(rain)heavily.4.-When _ you _(finish)your work?-Half an hour ago.has knownHaveseensawraineddidfinish、了解一般过去时与现在完成时最基本的区别是一般过去时强调动作发生的时间现在完成时侧重动作的结果 2、牢记现在完成时不能与表示过去的时间连用，包括疑问词when3、知道现在完成时的两种特点（1）：过去对对现在（瞬间性动词）（2）：过去到到现在（延续性动词）Game 4:1.The boy has already gone home.（改为一般疑问句）_2
9、.The girl has just given it to me.（改为否定句）_3.They have ever visited the Lantau Island before.（改为否定句）Has the boy gone home yet?The girl hasnt given it to me yetThey have never visited the Lantau Island beforen1、（现在完成时）肯定句变为否定句的基本方法：n、（现在完成时）肯定句变为一般疑问句的基本方法：n、注意点：、句中有ever直接将ever变为never、若无ever，在助动词haveh
10、as之后加not将助动词havehas提前到句首just、already、yet之间的关系以及各自适应的句型n除了上述结论之外，你认为现在完成时的运用还需要注意哪些问题？愿意共享你的成果吗？轻松练习同义句n1.We began to study here about 2 years ago.We _ here for about two years.2.Mr.Huang bought a watch last week.(1):It is_ _ (2):One week_ _ have studiedone week since Mr.Huang bought a watchhas passe
11、d since Mr.Huang bought a watchn nChoose one of the topics to have an interview with your partner.n n1.the changes to our schooln n2.the changes to your familyn n3.the changes in your studyn nany topic you want to talk about|Homework|1.Try to write a composition the changes to|2.To finish the table.