人教版高中英语必修七Unit1Learning-about-language课件word版本.ppt

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1、Unit1DiscoveringusefulwordsandexpressionsToreviewwordsandexpressionsinthepassageTounderstandandsummarizethecommonsuffixesofadjectivesandnounsinthederivationToenlargevocabulary1.Howdoyoumeasurethelengthofaraceroundaracetrack?e.g.Shehascompletedsixlaps.她跑完六圈了。Answereachquestionbyusingacorrectn

2、ewwordinthisunit.lapn.(两物)重叠部分，跑道的一圈，(人坐着时)大腿的上方2.Howwouldyoufeelifsomeonekepttalkingwhenyouweretryingtoread?annoyedadj.颇为生气的3.Inwhatwaycanateachercheckifyouhavelearnedthenewwordsbyheart?dictationn.口授，听写(的文字)e.g.Thepupilswroteattheteacher’sdictation.学生按照老师的口述写下来。4.Whatdoyoucallanitemwrittenin

3、adiaryorinadictionary?entryn.项目，进入，入口，词条e.g.Theneweditioncontains5,000entries.这个新版本包含了5000个词条。n.进入，入场；出赛，参加(+into)e.g.Hesupportedthatcountry’sentryintotheEuropeanCommonMarket.他支持那个国家加入欧洲共同体。n.入口；门口；河口；通道(+to/of)e.g.Theentryofthecavewashiddenbytrees.洞穴的入口被树丛遮掩。5.Whatkindofinstrumentdoesadoctor

4、needtoexaminevirusesinblood?microscopen.显微镜6.Howdoyoudescribesomeonewhoishappytomeetnewpeople?outgoingadj.外向的，友好的，外出的，离开的7.Whatdoyoucallstudentsinthesameyeargroupandthesamesituationasyou?fellowadj.同伴的，同类的n.同伴，同志，伙伴8.Whatdoyoucallthebehaviorofonestudenttoothers?conductn.行为，品行NounAdjectiveambit

5、iousabsentsuitabilitybenefitannoyanceambitionabsencesuitablebeneficialannoyed/annoyingFillinthetablebelow.Youcanusethedictionarytohelpyou.NounAdjectiveclumsinessfirmnessnoisepsychologyencouragingencouragementpsychologicalnoisyfirmclumsy词缀英语词缀在英语语言的整个历史发展过程中起着积极的作用。它不仅扩充了英语词汇，也丰富了语言的表达能力。我们学习英

6、语要掌握大量的单词，关键就在于掌握好英语词缀。词缀分为前缀(prefix)和后缀(suffix)两种。前缀、后缀词义与词性变化的普遍规律分别总结如下:一、前缀一般只改变词义，而不改变词性。如:natural(adj.自然的)—unnatural(adj.不自然的)fasten(v.捆住)—unfasten(v.打开)balance(n.平衡)—unbalance(n.失衡)二、后缀不仅改变词性，也改变词义。如:invent(v.发明)—inventor(n.发明者)safe(adj.安全的)—safety(n.安全性)deep(adj.深的)—depth(n.深度)press(v

7、.按，压)—pressure(n.压力)accurate(adj.准确的，精确的)—accuracy(n.准确，精确度)1.-age为抽象名词后缀，表示行为和状态percentage百分数，百分率shortage不足，缺少2.-cy表示抽象名词accuracy准确，精确度3.–ence,-ance表示性质和动作difference不同；influence影响，感化4.-ency,-ancy抽象名词后缀emergency紧急，急救；fluency流利，流畅5.-er表示……人、……