（）trees were cut down.And many birds lost their home.A.Two thousands B.Thousands ofC.Thousands D.Thousand of_百度作业帮
（）trees were cut down.And many birds lost their home.A.Two thousands B.Thousands ofC.Thousands D.Thousand of
A.Two thousands B.Thousands ofC.Thousands D.Thousand of
B成千上万望采纳谢谢Last year a large number of trees ______(cut)down.The old woman is ill.She____(most send) to thehospital.All kinds of vegetable________(sell) in this shop._百度作业帮
Last year a large number of trees ______(cut)down.The old woman is ill.She____(most send) to thehospital.All kinds of vegetable________(sell) in this shop.
hospital.All kinds of vegetable________(sell) in this shop.
were cut(cut 的过去分词还是cut) is mostly sentsell(sell做“卖”讲,多用作不及物）当前位置：
＞＞＞阅读理解 People can cut down poplar trees(杨树)and use them ..
&&&&&& People can cut down poplar trees(杨树)and use them for wood or paper. Their large roots help reduce the loss of soil. Now, poplar trees are often used to prevent environment pollution.&&&&&& The poplar trees are found in many places in the northern part ofthe world. They are fast growing trees that need a lot of water.Different kinds of poplar trees are native to Asia, Europe and North America.&&&&&& Professor Richard-Meagher is now testing a poplar tree to take in mercury&&(水银) through its roots. The tree then slowly releases(释放) the mercury into the air through its leaves. Mercury builds up in fish and other living things,which is dangerous to people.Around a factory, Professor Meagher has planted one hundred and sixty poplars to remove the pollution. There is great interest in using plants to control harmful things. And poplar trees are among the most studied.
1. What do people use poplar trees for?
A. Clothes or Wood.B. Food or paper.C. Wood or paper.D. Clothes or food.
2. Where&&are&&poplar&&trees from?
A. In the northern part of the world.B. In the southern part of the world.C. Asia, North Europe and America.D. Asia, Europe and North America.
3. Poplar trees spread the mercury&&into&&the&&air through&&&&&&&& .
A. their large rootsB. their leavesC. the soilD. the water
4. What does the underlined part&&"builds up" mean in Chinese?
A. 积累&&&&B. 损失&&&&C. 减轻&&&&D. 穿过
5. What is the passage mainly about?
A. Growing poplar trees need a lot ofwater.B. Poplar trees can clean the environment.C. Mercury should be released.D. Mercury is bad for people.
题型：阅读理解难度：中档来源：月考题
1-5 C D B A B
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