译林版必修4 Unit 3 Word power 教案 .doc

period 6 word powerteaching goals to learn how to form abstract nouns from verbs and adjectives by adding suffixes.to know some words related to computers and to apply them practically.teaching important points to learn how to form abstract nouns from verbs and adjectives by adding suffixes.to know some words related to computers and to apply them practically.teaching difficult points to practise and reinforce the rules of forming abstract nouns they have just learnt.teaching methods 1. explain the formation rules of creating adjectives by adding suffixes to nouns or verbs. 2. add more examples. 3. practice a lot. teaching aids a projector and a blackboard. teaching procedures and ways step 1 lead-infinish the sentences with the words in blanket.1. many wild animals _ have disappeared because people have destroyed their living environment. we have to take some actions to prevent the _ of wild animals. (disappearance; disappear)2. the new motorway between the two cities has finally _. its good news for people who have to travel a lot there.the manager made a speech at the _ ceremony of the supermarket. (open; opening)3. thanks to his _, we are all saved, and all of us think he is such a _ person. (kind; kindness)4. the man carried the boy to _ as the train come over, and the boy was _ at last.step 2 introductionmake comparison between individual nouns and abstract nouns.tip: an abstract noun is a noun that refers to an idea, an action, a general quality or something that we cant see or touch directly.step 3 forming rulesgroup 1:verbsabstract nounsmore examples: verb+ing (feelfeeling) verb+ure (failfailure) verb+ance(enterenterance) verb+ence(differdifference) verb+ment(developdevelopment) verb+ion (connectconnection) verb+ation(presentpresentation)group 2:adjectivesabstract nounsmore examples:adj.+ty (cruelcruelty) adj.+ness(illillness)tips:sometimes we need to change the final letters of a word before adding suffix:produceproduction silentsilencedecidedecision prettyprettinesspleasepleasure step 4 additional informationmost abstract nouns are uncountable, only a few of them are countable:hopea hope; ideaa idea; situationa situationyouth(青春)a youth（青年人）;power（电力）a power（大国）；beauty（美丽）a beauty（美人，美的东西） step 7 revisionhave ss look at the picture and revise names of some parts of the computer.(screen, monitor, speaker, keyboard, mouse, cd-rom, printer)step 8 words expandteach ss to learn more words related to computers, especially the most up-to-date hardware: (hard drive, floppy disk, floppy disk drive, u-disk, rom, ram, cpu)step 9 practicefinish the exercise to apply these words practically.step 10 more words related to computerschoose the right words to complete the sentences:scanner, sound card, cd-writer, network card 1) if we havent sound card, we cant enjoy the beautiful music by computers.2) if we want to surf online, we just need to connect the computer with cables by network card.3) your photos are so beautiful, and i can use the scanner to copy them into my computer.4) sometimes the information in the floppy disk is easily to be destroyed, so we can use a cd-writer to store the information for a long time. step 11 language points1. read about the history of one of the worlds most successful online businesses.succeed in doing sth成功做成某事succeed to sth继承某物they succeeded in solving the problem他们成功地解决了这个问题。0ur plan has succeeded我们的计划成功了。the millionaires eldest son will succeed to his estate这位百万富翁的长子将继承他的产业。the storm was succeeded by calm暴风雨过后一片宁静。the young man will succeed mrwhite as director那位年轻的男士将接替怀特先生当主任。 2use piural forms when necessary必要时用复数形式。 句法分析此句为复合句。when引导的是时间状语从句，省略了it is。 状语从句中的省略 当状语从句的主语和主句的主语一致时，可以省略状语从句中的主语和系： be，这时从句中可出现如下结构： (1)asas ifonce+名词once(he was)a teacher，he now works in a government office他曾经当过老师，现在在一个政府部门工作。 (2)thoughwhetherwhen+形容词 work hard when(you are)young，or youii regret 年轻时要努力工作，否则你会后悔的。 (3)whetheras ifwhile+介词短语 he looked everywhere as if(he was)in search of something 他到处张望，好像在找什么东西。 (4)whenwhilethough+现在分词while(1 was)walking along the street，i heard my name called 我在街上走时，听到有人喊我的名字。 (5)whenifeven ifunlessonceuntilthanas+过去分词 the exhibition is more interesting than(it was)expected 这个展览比预料的还要有趣。 (6)as ifas though-+-不定式 he opened his lips as if(he were)to speak他张了张口，好像要说话。 注意 (1)当从句的主语和主句的宾语一致时，有时也有这样的省略。 her father told her to be careful when(she was)crossing the street她父亲告诉她过马路时要当心。(2)当从句中的主语是it，谓语动词中又含有系动词be时，可以把it和系动词be 一起省略。此时构成“ifunlesswhenwhenever+形容词过去分词”结构。 if(it is)carefully done，the experiment will be successful 如果认真做，试验会成功的。提示另外，我们还可以用so或not代替上文的内容，此时可用if+sonot的省略句式。get up early tomorrowif not(=you dont get up early)，you will miss the first bus明天早点起来，如果不早点起来，你会错过第一班公共汽车的。 经典回放 we all know that，_，the situation will get worse(nmet 2007) anot if dealt carefully with bif not carefully dealt with cif dealt not carefully with dnot if carefully dealt with 解析：本题考查状语从句的省略。当状语从句中的主语与主句主语一致，并且从句为主系表结构，则从句中的主语和系动词可同时省略。if not carefully dealt with可还原为if the situation is not be carefully dealt with。 答案：b 3during the first few years，the company did not make a profit and mr bezos thought that his efforts would end in failure在开始的几年里，公司没有盈利，伯纳斯认为他的努力将会以失败而告终。句法分析-land连接两个并列分句。that引导宾语从句。effort nthe physical or mental energy that is needed to do something努力拓展make a good effort做很大努力 make every effort尽一切努力spare no effort不遗余力，尽力链接endeavour to do sth make every endeavour to do sth 努力做某事make