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,-,#,-,Section B,Using language,课前篇自主预习,课堂篇学习理解,Section B,Using language,Section BUsing language,.,知识体系,图解,characteristic,decline,blame,goat,primitive,源于,的,原产于,最后,是,的栖息地,对比之下,多达,.知识体系图解 characteristicdecl,.,释义搭配,1,.characteristic,A.belonging,to an early stage in the development of humans or animals,2,.decline,B.to,think or say that sb/sth is responsible for sth bad,3,.blame,C.to,become smaller,fewer,weaker,etc.,4,.goat,D.a,typical feature or quality that sth/sb has,5,.primitiveE.an animal with horns and a coat of hair,答案,:,1.D,2.C,3.B,4.E,5.A,.释义搭配,.,用括号内所给单词的正确形式填空,1,.It was the second time that Mr Brown,_,(visit)Tian,anmen Square.,2,.By the end of last month,we,(learn)3,000 English words.,3,.By the time I got to the airport,my friend,s,plane,(take)off.,4,.Before they,(arrive)here the film had already started.,5,.He said he,(work)in that factory since 1949.,had visited,had learned,had taken,arrived,had worked,.用括号内所给单词的正确形式填空had visite,重点词汇,重点语法,随堂练习,1,.,characteristic,n.,特征,特性,【课文原句】,Gregor Mendal chose to study pea plants because their,characteristics,were easy to control.,乔治,孟德尔选择研究豌豆植物是因为它们的特性易于控制。,【词汇精讲】,本句中的,characteristic,为可数名词,意为,“,特征,特性,”,。,Some animals possess the,characteristic,of man.,有些动物具有人类的特征。,重点词汇重点语法随堂练习1.characteristic n,重点词汇,重点语法,随堂练习,【词汇拓展】,characteristic,adj.,典型的,;,特有的,;,表示特性的,characteristically,adv.,典型地,;,表示特性地,character,n.,性格,品质,;,特性,;,角色,vt.,印,刻,;,使具有特征,She spoke with,characteristic,enthusiasm.,她说话带着特有的热情。,He does have the,characteristically,broad chin and big nose.,他的宽下巴和大鼻子确实很突出。,重点词汇重点语法随堂练习【词汇拓展】,重点词汇,重点语法,随堂练习,重点词汇重点语法随堂练习,重点词汇,重点语法,随堂练习,2,.,blame,v.,责怪,指责,;,把,归咎于,【课文原句】,The extinction of the Pinta Island tortoise is,blamed,on humans.,平塔岛龟的灭绝被归咎于人类。,【词汇精讲】,本句中的,blame,为动词,意为,“,把,归咎于,”,常见搭配为,be to blame“,受责备,”,。,It is requested that the reporter referred to,be,to,blame,for the wrong report.,要求所涉及的那位记者应对错误报道承担责任,。,重点词汇重点语法随堂练习2.blame v.责怪,指责;把,重点词汇,重点语法,随堂练习,【词汇拓展】,blameless,adj.,清白的,;,无可责备的,;,无过失的,blame on,把责任推给,;,怪到,头上,Neither side is,blameless,.,没有一方是清白的。,But no one can throw any,blame,on,them.,但是谁也不能怪他们。,重点词汇重点语法随堂练习【词汇拓展】,重点词汇,重点语法,随堂练习,重点词汇重点语法随堂练习,重点词汇,重点语法,随堂练习,3,.,decline,v.,减少,【课文原句】,After goats in particular had been brought to the island,the Pinta Island tortoise population,declined,.,特别是山羊被带到岛上之后,平塔岛龟的数量下降了。,【词汇精讲】,本句中的,decline,为动词,意思,为,“,减少,”,它还可表示,“,衰落,衰败,;,婉言谢绝,拒绝,”,。,decline,还可作名词,意思,为,“,减少,;,下降,;,衰落,”,。,As one grows older,his memory,declines,.,人的记忆力随着年龄的增长而衰退。,重点词汇重点语法随堂练习3.decline v.减少,重点词汇,重点语法,随堂练习,【词汇拓展】,on the decline,在衰退中,走下坡路,fall into decline,衰落,decline to do sth,拒绝做某事,He,declined,to,answer my questions.,他拒绝回答我的问题。,The fact is,their economy did not,fall,into,decline,overnight.,事实是,他们的经济衰退也不是一夜之间的事。,These numbers have been,on,the,decline,for decades.,近几十年来,这些数字都在减少。,重点词汇重点语法随堂练习【词汇拓展】,重点词汇,重点语法,随堂练习,重点词汇重点语法随堂练习,重点词汇,重点语法,随堂练习,4,.,survive,vi.&vt.,幸存下来,;,存活,【课文原句】,This tiny organism can,survive,temperatures from 150,to a below freezing-272,.,这种微小的生物可以在,150,到零下,272,的温度下生存。,【词汇精讲】,本句中的,survive,为及物动词,意为,“,幸存,;,艰难度过,”;,作不及物动词时,意为,“,存活,”,。,These birds are able to,survive,the freezing weather.,这些鸟能够战胜寒冷的天气。,The urge to,survive,drove them on.,求生的欲望驱使他们继续努力。,重点词汇重点语法随堂练习4.survive vi.&vt.幸,重点词汇,重点语法,随堂练习,【词汇拓展】,survive sth,从,中幸存下来,survive on sth,靠,存活下来,survive sb,比某人活得长,survivor,n,.,幸存者,;,生还者,survival,n,.,幸存,They,survived,on,leaves when they were lost.,他们迷路时靠吃树叶生存。,She,survived,her husband by 15 years.,她比她丈夫多活了,15,年。,重点词汇重点语法随堂练习【词汇拓展】,重点词汇,重点语法,随堂练习,重点词汇重点语法随堂练习,重点词汇,重点语法,随堂练习,过去完成时,1,.,过去完成时表示过去的过去,其构成是,“had+,过去分词,”,。,2,.,用法,:,(1),表示在过去某一时间或动作之前已经发生或完成的动作。,它表示的时间是过去的过去,常与,by last year,by the time of.yesterday,等连用。,He had gone to bed by 10:00 last night.,昨夜十点钟之前他已上床睡觉了,。,重点词汇重点语法随堂练习过去完成时,重点词汇,重点语法,随堂练习,(2),表示从过去某一时间开始一直延续到过去另一时间的动作或状态。常与,for(,后跟时间段,),或,since(,后跟时间点,),等连用。,The train had started when I got to the station.,当我到达车站时火车已开走了。,The minute I saw a lady getting off the bus,I knew it was she,for I had seen her before.,我一看到正在下公共汽车的那位女士就知道是她,因为我以前看见过她。,重点词汇重点语法随堂练习(2)表示从过去某一时间开始一直延续,重点词汇,重点语法,随堂练习,3,.,常见结构,:,(1)By the end of+,名词,(,短语,),主语,+had done.,By the end of the day,most of the inhabitants had left their homes.,在这一天结束的时候,大部分居民已离开他们的家园。,(2),主句,(had done),before+,过去时间状语,I had reached the station before six o,clock.,六点之前我已到达车站。,(3),用在,told,said,knew,heard,thought,等动词后的宾语从句,表示动作发生在这些动词之前。,She said that she had never been to Paris.,她说她从未去过巴黎。,重点词汇重点语法随堂练习3.常见结构:,重点词汇,重点语法,随堂练习,(4)By the time+,从句,(did/was/were),主语,+had done.,By the time we arrived,everyone had received medical care.,我们到达时,每个人已接受了医疗护理。,(5),主语,+had done.,before,从句,(did/was/were),Fortunately,the population had left the village before the volcano erupted.,幸运的是,火山喷发前人们已离开了村庄。,(6),主语,+had done.,when,从句,(did/was/were),They had already put the fire out when I returned to the village.,当我返回村子时,他们已将大火扑灭。,(7),主语,+(did/was/were),after,从句,(had done),The earthquake happened in the daytime after people had already left home for work or school.,地震发生在白天,当时人们已离开家去上班或上学。,重点词汇重点语法随堂练习(4)By the time+从句,重点词汇,重点语法,随堂练习
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