DListenandwrite(听录音，填入所缺单词)9%Treesaretobirdsandanimals.Treesgivethemand.Treesareusefultous.Theygiveus.Weusewoodtomakehousespaperandmanyotherthings.Treesgiveus.Treesg

Question

D Listen and write (听录音，填入所缺单词) 9%

Trees are ____ to birds and animals. Trees give them ____ and

____ . Trees are useful to us. They give us ____ . We use wood to make houses paper and many other things. Trees give us ____ . Trees give us oxygen (氧气)  ____ They help keep the ____ clean. They ____

us from sandstorms (沙尘暴) and floods (洪水) But we ____ down too many trees. Many birds and animals lose their homes. Our Earth becomes ____ and dirty. We should save trees and plant more trees.

Answer 1

D Listen and write Trees are useful to birds and animals. Trees give them food and homes. Trees are useful to us. They give us wood. We use wood to make houses paper and many other things. Trees give us fruit. Trees give us oxygen. They help keep the air clean. They protect us from sandstorms and floods. But we cut down too many trees.

Many birds and animals lose their homes. Our Earth becomes hot and dirty. We should save trees and plant more trees.

D useful food homes wood fruit air protect cut hot