1、take care ofhourshealthyjogkeepexercisedo exerciseWarm upTree Planting DayIts on 12th March.When is Tree Planting Day?plant treesWhat should we do?A Lets Listen and SayWhat can trees do?树木可以做什么呢？树木可以做什么呢？Trees cankeep the air clean.air/e/空气Trees cankeep us cool.Trees canmake the place beautiful.plac
2、e/ples/地方plant trees 植树 keep us cool 使我们保持凉爽make the place beautiful使这个地方变得美丽keep the air clean 保持空气清新B Lets LearnC Lets Practise1.water（1）（名词）水）（名词）水如：如：Water is important to us.水对我们水对我们很重要。很重要。（2）（动词）浇水）（动词）浇水如：如：You should often water the flowers.你应当经常给花浇水。你应当经常给花浇水。Words and phrases2.look after
3、照顾照顾同义短语：同义短语：take care of如：如：Amy often looks after her grandma.埃米经常照顾她的奶奶。埃米经常照顾她的奶奶。3.become（动词）变成，成为（动词）变成，成为如：如：I will become a big tree.我将变成一棵大树。我将变成一棵大树。D Lets Read1.building（名词）建筑物（名词）建筑物如：如：He lives in a tall building.他住在一栋高楼里。他住在一栋高楼里。Words and phrases2.more and more形容词比较级形容词比较级+and+形容词比较级，
4、表示形容词比较级，表示“越来越来越越”。如：如：better and better越来越好越来越好stronger and stronger越来越强壮越来越强壮more and more interesting越来越有趣越来越有趣More and more people come here.越来越多的人来越来越多的人来到这里。到这里。Why do people cut down trees?1._2._3._4._Farmers need more land to grow rice and vegetables.We want more buildings.We want more roads.We want more houses.E Lets WriteComplete the table.Why should we plant more trees?1._2._3._4._Trees can make the place beautiful.Trees can keep the air clean.Trees make the Earth clean and green.Trees help to make the air cool and fresh.F Lets Have Fun
