英语课件：人教新课标版必修四Unit2SectionⅣ.pptVIP

【要点词汇】 1．发展________________ 2．农业________________ 3．反而，代替________________ 4．结果，因此________________ 5．效率________________ 6．对……有影响________________ 7．破坏________________ development agriculture instead of as a result efficiency have...effecton... destroy 【句式结构】　 1．随着社会的快速发展，现代农业在好多方面都发生了变化。 ______________________________________________，agriculture has also changed a lot in many aspects. With the rapid development of the society 2．结果，现代农民不再很辛苦了，工作效率提高了，产量也大幅度提高。 _______________，modern farmers ________________need to work so hard as before and the output and________________are also improved greatly. As a result no longer working efficiency 3．化肥、农药的使用对环境破坏较大,而传统农业不会造成这种问题。 The fertilizers and medicines_________________________have destroyed the environment badly,________，traditional agriculture does not________such kind of problems at all. used in modern agriculture while cause 【连句成篇】 __________________________________________________________________ __________________________________________________________________ _________________________________ 【佳作欣赏】 With_the_rapid_development_of_society,agriculture has also changed a lot in_many_aspects.First of all，nowadays most farmers grow crops with_the_help_of_modern_machines_instead_of planting crops with their hands. As_a_result，modern farmers no_longer need to work so hard as before and the output and working efficiency are also improved greatly.But modern agriculture also has_harmful_effect_on our society.For example， the fertilizers and medicines used in modern agriculture have destroyed the environment badly，while，traditional agriculture does_not_cause_such_kind_of_problems_at_all. 【技巧点拨】 本篇习作思路比较清晰，开篇指出了本篇文章的说明对象,然后按照写作要求,逐条进行对比说明，文章所用的词汇比较丰富，如“development，output，effect”等。作者还成功地运用了with构成的介词短语作状语， “First of all，nowadays most farmers grow crops with the help of modern machines instead of planting crops with their hands.”“With the rapid development of the society，agriculture has also changed a lot in many aspects.”提升了文章的层次。文