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ker這一課時,根據(jù)文中的I39。ve had my measurements taken..."這個句子,要求學生說出各種帶有"have的句子或短語,并且要求每句中的"have的詞義或用法要各不相同。于是,學生就開始積極思維,說出了如下的句子:1 Although has got a large farm of his own, he has only two helpers working for him.2 The emperor had nothing on .3 Have the door open .please .4 The pupils don39。t have to go to school every day .5 Had I had called the police earlier ,the thief would have been caught .以及have a try /have a class/have a meeting/have a headache/have everything ready for action/have a bite/have it on 。上述過程實質(zhì)上是教師以動詞"have作為"發(fā)散點",引導學生進行發(fā)散思維。這種思維具有聯(lián)想的自由性與廣闊性,通過這種思維活動,提高了學生思維的敏捷性和靈活性。學生通過各種詞義和用法,加深了他們在大腦中的印象,增強了記憶,這比由教師來歸納總結(jié)的效果要好的多。2通過前、后綴詞來展開.例如,我在講前綴dis時,告訴學生它可以加在動詞、名詞或形容詞前表示否定含義,然后要求學生想出一些帶有前綴dis-的詞,啟發(fā)學生進行發(fā)散思維。這時有的學生很快會說出一些已學過的前綴詞,如disappear,discourage,disagree,disallow,disbelieve,dislike,dissatisfy,dishonest,disease,disunite等詞。當然,學生在發(fā)散思維過程中也可能聯(lián)想出dislive這種在實際運用中沒有的單詞,這時教師只要稍加糾正就行。這樣既擴大了學生的詞匯量,同時又有助于學生了解詞的結(jié)構(gòu)和