人教版八年级下册Unit9 词汇扩展及重点知识讲义

八下Unit9词汇扩展1.invent(v.发明;创造)→invention(n.发明;发明物)→inventor(n.发明者;创造者)2.unbelievable(adj.难以置信的)→believe(v.相信);disbelieve(v.不相信)→belief(n.信念)3.rapid(adj.迅速的;快速的)→rapidly(adv.快地;迅速地)4.unusual(adj.不寻常的)→usual(adj.通常的;寻常的)→usually(adv.通常地;一般地)5.encourage(v.鼓励)→discourage(v.使灰心；使丧气)→encouragement(n.鼓励)→courage(n.勇气)6.social(adj.社会的)→society(n.社会)7.peaceful(adj.和平的;安宁的)→peace(n.和平)8.performance(n.表演)→perform(v.表演)→performer(n.表演者)9.collect(v.搜集)→collection(n.收藏品）二、短语acoupleof两个；一对；几个thousandsof数以千计的；许许多多的haveagreattime玩得很高兴goskating去滑冰putup搭起inthefuture在将来differentkindsof不同种类的encouragesb.todosth.鼓励某人做某事thinkabout考虑threequartersof...的四分之三；四分之三的...takeaholiday度假hearof听说ontheonehand...ontheotherhand一方面...另一方面...haveproblemsdoingsth.做某事有困难whether...or...不管....还是...wakeup醒来三、重点知识讲解1.ontheonehand…ontheotherhand一方面……另一方面……常放在一个句子中，可以指相对的两方面，也可以指顺承的两方面。2.thousandsof数以千计的；许许多多的表示不确切的数字时，thousand用复数形式，后面还要加of。在表示确切的数字时，不能使用复数形式，且后面不能加of。与thousand用法相同的词还有：hundred（百）,million（百万）,billion（十亿）。3.threequarters四分之三英语分数的表达方法：分子用基数词表示；分母用序数词表示；当分子大于1时，分母即序数词应在后面加“s”。分数作主语时，谓语动词的单复数取决于其后所接的名词或代词。如果是复数名词或代词，谓语动词用复数形式；如果是不可数名词或单数名词，谓语动词用单数形式。4.Havebeento曾经去过have/hasbeento意为“曾经去过某地”，表示现在已不在那里了，可与just,ever,never等词连用。have/hasbeento可接次数，表示去过某地几次。have/hasgoneto意为“到某地去了”，表示到了某地或正在去某地的途中。总之，说话时该人不在现场，一般不用第一、第二人称代词作句子的主语。5.Meneither.我也没。相当于NeitherhaveI.或Ihaven’t,either.Me,too.我也是。相当于So+情态动词/助动词/系动词be+I.或I+情态动词/助动词/系动词be,too.练习一、单项选择1.Youcancometoseemeyoulike.A.however B.whenever C.wherever D.whatever2.---Therearepeopleintheshoppingmall.---Yes.Itissocrowded.A.thousands B.thousand C.thousandsof D.thousandof3.---Thisisausefuldictionary,Ithink.---Soitisandit’sunusualone.A.the B.an C.a D.不填4.---I’mtoldyourclasshas3newcomers.---Yes.Oneisa,theothertwoare.A.Japan;Germany B.Japanese;GermanC.Japanese;Germans D.Japanese;Germen5.---Areyouclearaboutthejobofapoliceman，Ben?---Yes,tokeeppeopleandthesocietyingoodorder.A.busy B.safe C.lucky D.healthy6.—Iwonderwhenyou_______inNewYork.—Iwillsendane-mailtoyouassoonasI_______there.A.arrive;willgetB.willarrive;getC.willarrive;willget7.—Thisisausefuldictionary,Ithink.—Soitis,andit’s____________unusualone.A.theB.anC.aD./8.ShespeaksEnglish____thanI.A.perfectB.perfectlyC.moreperfectD.moreperfectly.9.ThesongIBelieveICanFlytellsusthatbelievingin____isveryimportant.A.themselvesB.itselfC.ourselvesD.yourselves10.____you____stampssinceyouweresix?A.Did;collectB.Do;collectC.Have;collectD.Have;beencollecting二、用所给词的正确形式填空1.I___________already___________(read)thisbook.2.Where’sJohn?He____________(go)tothepark.3.Infact,he_____________(go)therethreetimes.4.She___________never___________(be)toShanghaibefore.5.Themovie_____________(be)onforoveroneandahalfhours.6.Hearingthenews,allofuscouldn’thelp____________(shout).7.Whenhereceivedtheparcel,hecouldn’twait___________(open)it.8.MrGreenisverypopularintheschool.Heisgoodwith____________(teenager)students.9.Mostofthestudentshaveproblems______________(improve)theirphysicalskills.10.They_________(fear)theworstafterhearingthenews.三、根据汉语提示写单词KeeptryingandIamsureyouwillget____________(进步）。Thestudentsisshowing__________(快速的）progressinhisstudies.Wherewouldyouliketospendyourwintervacation?-——Iliketogo______(到某处）warm,Idon’tlikecoldplaces.Bytheway,which________(省）ishefrom?5.Ijoinedallthe_______（社会的）networks,suchasFacebookandTwitter.6.What’sthe_______(人口)ofShanghai?7.-Whichdoyouprefer,coffeeortea?-(两者都不),I’dlikeabottleoforangejuice.8.One______(四分之一)ofthestudentsinourclasshavevisitedthemuseum.9.Youcanaskforhelp________（无论何时）youneedit.10.Thechildrenhad________（已经）beenasleepwhenIgothome.四、补全对话:根据对话内容，从方框中选择恰当的选项补全对话。A.Well,haveyoubeentotheartmuseum?A.Well,haveyoubeentotheartmuseum?B.Let’smeetatoneo’clockatthebusstop.C.Let’sgotothezootoseeanimals.D.Thatsoundsinteresting.E.Ihavebeenthereonce.A:Hi,Jerry!Whatanicedayitis!B:Yeah!1A:It’sboring.YouknowIdon’tlikeanimals.B:2A:No,Ihaven’t.Howaboutyou?B: