Reading

　　一、1.How 2.in 3.beautiful 4.our 5.as 6.comes 7.of 8.living 9.polluting 10.if/because

　　二、1.begin/start 2.provide 3.oxygen 4.create/keep 5.convenient 6.around7.wood 8.treat

　　三、1.F   2.O   3.F   4.O

　　四、Trees do a lot for us.Trees help prevent soil erosion by holding the soiltogether withtheir roots,which also helps in keeping water conservation.Many trees provide fruits,nuts,andeven medicines for people.Trees offer shade and protection from the sun,and provide a coolerenvironment especially in summer.

　　Listening

　　一、1.communicate 2.bad 3.share 4.help 5.stronger 6.join

　　二、1.To introduce how trees help each other.2.Introduction of famous trees in China.

　　三、The most amazing part about trees in the podcast is how they support each other like afamily.Older trees give food and water to younger ones,and younger trees help older onessurvive.Even when one tree is sick,others try to help.This shows that trees know they arestronger together.It's amazing to see how they work as a team to grow better and stronger.This istruly inspiring!

　　Grammar

　　一、1.is reading 2.are planting 3.are singing 4.is;doing;is watching 5.Is;studying;isn't;is practising

　　二、1.Are;preparing   2.is making   3.are writing   4.are discussing   5.are;doing   6.am helping   7.love    8.understand

　　Speaking and Writing

　　一、1.branch   2.oxygen   3.create   4.environment   5.dig   6.hole   7.stick   8.treat   9.product   10.side

　　二、1.follow,close 2.fill,stick,activity 3.tools,room,too 4.green,grow,ground

　　三、Hello everyone.Tree Planting Day is coming.We allknow that trees are very importantto us.They provide oxygen and improve air quality.We should try our best to protect trees.Tobegin with,we can plant trees.Try to increase the number of trees in our neighbourhood.Theycan make our environment cleaner and more beautiful.Next,we should save paper.Use both sidesof paper to write or draw.What's more,recycle paper products.Collect paper waste,such asnewspapers,magazines,cardboard,and paperboard,and place it in the recycle bin.Finally,donate used books.Instead of throwing away used books,give them to libraries or schools.Let'stake action now.

　　Focusing on culture

　　1.Almost 2,200 years old.

　　2.At first,people used tea as medicine.Thanks to Lu Yu,people started enjoying tea as a drink.

　　3.Tea and tea culture.