人教版英语必修4Unit2第5学时：Writing课件（21页）.ppt

第五学时　Writing;1．This special strain of rice makes it possible to produce one third more of the crop in the same field. it 在句中作形式宾语，真正的宾语为to produce...。 此结构为：主语 ＋ 动词(make, feel, think, regard, consider...)＋ it ＋adj./n.＋ (for sb.)to do sth. 如： (1)The fine weather makes it possible( for us )to swim.好天气使游泳成为可能。 (2)He makes it a rule to run every morning. 他规定每天晨跑。;即学即练;2．Using his hybrid rice, farmers are producing harvests twice as large as before. “倍数词(twice/half/three times/a quarter etc.) ＋ 形容词原级 ＋as ...”表示“是．..的多少倍。”如： The number of the students in our school is twice as large as that in their school. 我们学校学生的数量是他们学校的两倍。;即学即练;3．Dr. Yuan awoke from his dream with the hope of producing a kind of rice that could feed more people. with the hope of “带着某种希望”，介词with的复合结构，表伴随情况或状态。 如： He went to the U．S with the hope of finding a better job there. 他去美国， 希望在那找到一份更好的工作。;即学即练; 用上述句型翻译下列小段落。 30岁时，我离开家乡去深圳，希望多赚些钱。我真的希望，我的努力工作能使我们有可能购买比我们以前的房子大一倍的新家。 ________________________________________________________________________________________________________________________________________________;写作指导;1．认真审题，理清所写内容。 2．要点要齐全，句式要多样化，考虑要周到。例如：用什么字体、字形，用什么样的形式，是否配图画等。掌握好词数要求。 3．时态一般用现在时。 4．要写明时间、地点、人物、事情、主办单位等。 5．列好提纲 6．选择恰当的过渡衔接词，将提纲有机地连成一篇文章。;即学即练;1.green food 2.environmentally friendly 3.be good for /be beneficial to 4.safe and healthy 5.stay/keep fit/healthy 6.on the way/road to;由词连句 完成下列句子 1．绿色食品对你和你的家人既安全又健康。 Green food is ______________ for you and your family. →Green food is ______________ for you and your family. →Green food is ______________ for you and your family. 2．绿色食品是健康环保的。 Green food is ______________________.;3．如果吃??色食品你和你的家人都会保持健康的。 You and your family will __________________ if you eat green food. 4．这是通向健康饮食道路的第一步。 This is the first step ______________________.;连句或篇 现在请以“Buy the Best Food Here”为题，写一篇推销绿色食品的广告。 _________________________________________________________________________________________________________________________________________