Last Sunday,our school went to the forest park to plant trees.I took part in the activityAt today's class meeting,the teacher talked about the tree planting activity with us.And heasked us why trees are important.I think there are different reasons.First,trees produce oxygenfor us to breathe.Second,trees help to clean the air and reduce pollution.Lastly,trees provide uswith a lot of things.They provide us with food.They also provide us with wood to make furniturewithI can't imagine a world without trees.So I will do something to protect trees.I will take care ofthe trees we planted.Besides,I will call on more people to plant trees.【书面表达写作指导】本篇书面表达要求介绍为什么树木很重要及保护树木的措施。写作时,首先要认真审题,人称用第一和第三人称,时态用一般过去时、一般现在时和一般将来时然后按照提示先简述上周日你参加的植树活动,再着重讲述树木重要的原因最后谈谈保护树木的措施,可适当发挥。文章完成之后,要通读全文,检查语法是否正确、要点是否齐全。【写作指导】1.任务分析本篇书面表达要求先简述上周日你参加的植树活动,再着重讲述树木重要的原因,最后谈谈保护树木的措施:主题:人与自然环境保护文体:说明文时态:一般过去时、一般现在时和一般将来时人称:第一和第三人称2.行文布局本篇书面表达可按照以下框架完成。开头:引入主题主体:介绍树木重要的原因结尾:谈谈保护树木的措施3.可用句型结构介绍树木重要的原因:Firstly/First/First of all,...Secondly/Second/In addition,...Thirdly/Third/Last but not least,...Trees help to keep...Trees provide/produce ..Trees are so important because...谈谈保护树木的措施:I will/am going to…I will try my best to ..【范文展示】