八年级（下）Units 9PPT课件.ppt.ppt

八八年级下 Unit 9 Unit 9 Have you ever Have you ever been to a museum?been to a museum?Section B 2a-3b Section B 2a-3b Self checkSelf check词汇拓展 1.unbelievable(反义词)_ (相信)_2performance(演出；表演)_3peaceful(和平)_4memory(记忆；记住)_5collect(收藏)_ 6safe(反义词)_(安全，名词)_ (反义词)_7simply(简单的)_believablebelieveperformpeacememorizecollectiondangeroussafetydangersimple重点短语 1.数以千计的；许许多多的_2一方面另一方面on the _ handon _hand3四分之三_4说实在的to be_5不再；不复_6察看；观察_7将认为_thousands ofonethe otherthree quartershonestno longercheck outregardas First,ask some students to read the passage on page70.And then,ask students to give us some grammar points according to some sentences.一一.辨析辨析have been to,have gone to与与have been in二二.encourage的用法的用法三三.辨析辨析whether与与 if四四.英语中分数的表达方式及用法英语中分数的表达方式及用法五五.regard的用法的用法1.May I speak to Jim,please?Sorry,he_ the library.2.I _ Hong Kong twice and it is really an amazing city.3.Lisa _ the park for two hours,and I think she will be back soon.has gone tohave been tohas been inhave been to have gone to have been in1.含义含义例句例句havebeento意为意为“曾经去过某地曾经去过某地”(现在已经回来了现在已经回来了)，常与表示次数的副常与表示次数的副词连用。词连用。I have been to Harbin twice.我曾经我曾经去过哈尔滨两次。去过哈尔滨两次。havegoneto意为意为“去了某地去了某地”，表示说话时某人已不表示说话时某人已不在现场在现场，可能在去的可能在去的途中途中，也可能已经到也可能已经到达目的。达目的。Mr.Li isnt here.Hes gone to Changsha.李李老师不在这里老师不在这里，他去他去长沙了。长沙了。havebeenin意为意为“待在某地待在某地”，表示状态表示状态，后面常接后面常接表示表示“时间段时间段”的状的状语。语。His grandparents have been in the city for about twenty days.他的祖父母已经他的祖父母已经在这个城市待了在这个城市待了20天天了。了。注意：注意：当当have/has been to和和have/has gone to后跟后跟某些地点副某些地点副词时词时，如，如here,there和和home等，等，介介词词to要省略。要省略。4.Our English teacher always_（鼓励）（鼓励）us to take part in all kinds of English activities.5.My six-year-old brother was encouraged _(go)to school on his own.encouragesto go2.encourage 作及物动词，意为作及物动词，意为“鼓励鼓励”，常，常用结构为用结构为encourage sb.to do sth.鼓励某人做鼓励某人做某事。某事。其被动形式为：（其被动形式为：（sb.）be encouraged to do sth.（某人）被鼓励做某事。（某人）被鼓励做某事。如：如：Parents should encourage children to do things by themselves.The young should be encouraged to readmore books.。6.I have no idea_(是否是否)he can come here tonight.7._(是否是否)the missing plane will be found or not,the whole world should pay more attention to the safety of people,especially at airports.if/whetherWhether区别区别用法用法例句例句相同相同点点whether和和if都可都可以引导宾语从句，以引导宾语从句，表示表示“是否是否”，在口语或间接引在口语或间接引语中两者可以互语中两者可以互换使用换使用I wonder whether/if I can get some advice from you.我想知道我能我想知道我能否从你那里得到一些建否从你那里得到一些建议。议。Ask him whether/if he can come.问问他是否能问问他是否能来。来。3不同不同点点whether引导的引导的从句常可以与从句常可以与连词连词or或或or not连用，而连用，而if一一般不能般不能Let me know whether you can come or not.让我知道你是否能来。让我知道你是否能来。当宾语从句提当宾语从句提到句首时，只到句首时，只能用能用whether引引导，而不能用导，而不能用ifWhether it is true or not,I cant tell.是真是是真是假，我无法判知。假，我无法判知。8._ of the students in our class_ girlsATwo fifth；isBTwo fifth；areCTwo fifths；are9.Its said that _ of the water around the world _ pollutedAtwo thirds；has Btwo thirds；isCtwo third；are Dtwo thirds；haveCB4 4.three quarters three quarters=three fourths，意意为为“四四分分之之三三”。英英语语中中分分数数的的表表达达方方式式：分分子子用用基基数数词词，分分母母用用序序数数词词。当当分分子子大大于于1时时，分分母母要要用用复复数数形形式式。当当分分数数作作主主语语时时，谓谓语语动动词词要要根根据据分分数数词词后后面面的的名名词词来来确确定定。“分分数数of+不不可可数数名名词词”作作主主语语时时，谓谓语语动动词词用用单单数数形形式式；“分分数数of+复复数数可可数数名名词词”作作主主语语时时，谓谓语语动动词词用用复数形式。复数形式。【典例在线】Three fourths of the surface of the earth is sea.地球表面的四分之三是海洋。Two thirds of the new students are from No.1 Middle School.三分之二的新生来自第一中学。5 5.regard12.StephenHawking_his many physical problems _ unimportant.regard意为“将认为；把视为”。常见用法有regard sb./sth.as.表示“将某人/某物看作”。regardsas Lets do some exercise together.【活学活用】1What do you think of the environment here?Wonderful！_ of the land _ covered with trees and grassATwo fifths，is BTwo fifth，isCTwo fifths，are DTwo fifth，areA2A recent survey shows that 35 out of 45 students in my class will save their phones first in a fire.About _ of the students made such a choice？Life is far more important，isnt it？Ahalf Bone thirdCtwo thirds Dthree quartersD3Do you have any difficulty in _ English?Yes，but I try to make myself _Ato speak，understood Bspeaking，understandCto speak，to understand Dspeaking，understoodD4 The local living conditions have improved a lot _ China set up the city of Sansha.And more and more people would like to go there for businessAbefore Bwhen Csince DafterC5Yunnan is very beautiful.I _ there last year.Yes，I _ there twiceAwent，have gone Bwent，have beenChave gone，went Dhave been，went6Why are you worried?Im expecting a call from my daughter.She _ New York for three daysAhas gone to Bhas been toChas been in Dhas come in BC7.Learning to write is learning to think.You will know things more clearly _ you write them downAor Bunless Cif Dwhether8.Im not sure _ there are living things on other planets or not.Awhether BwhereCwhy DifCA