Unit2 Plant a plantLesson8 Why Are Plants Important?Warm-up1Presentation2Language Points3Exercise4內(nèi)容結(jié)構(gòu)內(nèi)容結(jié)構(gòu)Warm-upTalk about the questionsWhat plants grow near your home?Why do we need plants?air n.空氣，天空空氣，天空shade n.樹蔭樹蔭PresentationLearn some new wordsnothing pron.沒有東西，沒有事情沒有東西，沒有事情die v.死死 （die-died-died,dying）energy n.能量能量heat n.&v.熱，加熱熱，加熱bamboo n.竹子竹子kilogram n.千克千克 Read together1Read the lesson and tick the items mentioned.People can eat plants or use them as medicine.Plants help make the air clean and fresh.Many animals live in the forest.Books,paper,pencils and erasers all come from plants.Animals eat the fruit from the trees.The plants cover the soil and can stop the dust.When the weather is sunny and hot,people can sit in the shade under a tree.The plants make everything look beautiful.People use wood from trees to build houses and furniture.2Complete the passage with the correct forms of the words in the box.There are many trees and plants.Its _ to walk in the forest.When the weather is sunny and hot,you can sit in the _ under a tree,Trees and other plants are one of our _ needs for life.Many things are made from trees and plants.Most animals live in the _ and eat the fruit from the trees.And plants _ the soil.That way,the wind and water dont carry the soil away.basic shade forest cover pleasantpleasantshadebasicforestcover3Work in pairs.Think about why we need plants.Discuss it and fill in the mind map.You can use some ideas from Activity1.Function of trees(plants)Food or medicine:_Shelter:_Clothing and school things:_Environment:_1.Donuts dont grow on trees!on trees“在樹上在樹上”on the tree樹本身的東西，長在樹上。樹本身的東西，長在樹上。in the tree 外來的東西，不是樹本身的東西外來的東西，不是樹本身的東西 Language points例：樹上有幾只鳥。例：樹上有幾只鳥。There are some birds in the tree.樹上有很多蘋果。樹上有很多蘋果。There are many apples on the tree.看看!風(fēng)箏在樹上。風(fēng)箏在樹上。Look!The kite is in the tree.2.Then we can sit under a tree in the shade.in the shade“在陰涼處在陰涼處”類似短語類似短語 in the sunin the light 在陽光下在陽光下在燈光下在燈光下 3.All plants take energy from the sun and make it into food.makeinto“把把制成制成”例：我們可以把樹制成紙例：我們可以把樹制成紙.We can make the tree into paper.我們可以把棉花制成布料我們可以把棉花制成布料.We can make cotton into cloth.make 被動語態(tài)的短語被動語態(tài)的短語be made from由由(看不出原料看不出原料)制成制成be made of 由由(看出原料看出原料)制成制成be made by 被被(某人某人)制造制造 be made in 在在(某地某地)制造制造4.Without food,they would have nothing to eat and they would die.without介詞介詞“沒有沒有”例：他沒有吃早飯就去上學(xué)了。例：他沒有吃早飯就去上學(xué)了。He went to school without breakfast.他沒說再見就走了。他沒說再見就走了。He left without saying good-bye.Why are plants important?Trees help_ the air.Trees _us food.We can _things with trees.We can _ under a tree.We _ books from trees.Many animals _ in trees.cleangivebuild sit makelive1.All plants take energy _ the sun and make it _ food.A.to;from B.into;to C.from;to D.from;intoExercise2.Plants cover the soil.Then the wind and water dont carry the soil_.A.in B.out of C.away D.on3.Pandas eat_.A.pandas B.grass C.dinosaurs D.bamboo4.I would fail_ your help.A.in B.with C.within D.withoutHomework:1.Finish the activity book and the practice.2.Copy the new words and phrases twice.