What are scientists worried about when it comes to plants according to the article、

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• 1According to the article, if a plant freezes in the winter, ______.

  A.it produces more living tissues to stay alive

  B.its leaves quickly fall out and its roots begin to die

  C.lots of air bubbles form in its water transport system

  D.its water transport system could be blocked in the spring

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• 2Which of the following titles goes best with the story、

  A.A kind- hearted Girl

  B.Shining Kindness

  C.Kindness Means Opportunities

  D.A Special Customer

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• 3The words the man left on the napkin suggested that _____.

  A.respecting others means respecting oneself

  B.serving others is a respectable job

  C.Mary would get a rise as a result of her kindness

  D.Mary’s kind service would bring in more money for her

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• 4The man came to the restaurant ______.

  A.to have breakfast

  B.to see his employees

  C.to find out how his restaurant was working

  D.to see how Mary served customers

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• 5Mary ran over to the old man because _____.

  A.the old man was the boss of the restaurant

  B.she was worried that the old man might cause trouble to the restaurant

  C.she saw the old man had some difficulty moving and taking a seat

  D.the old man had asked her to wait on him

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• 6How did t he calf feel about the mother elephant's roaring？

  A.It was a great comfort.

  B.It was a sign of danger.

  C.It was a call for help.

  D.It was a musical not

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• 7What can be the best title for the text？

  A.A Mother's Love

  B.A Brave Act

  C.A Deadly River

  D.A Matter of Life and Death

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• 8Modern technology does bring us many conveniences（便利），from Wi-Fi（无线网络）enabled cell phones and ever- smaller laptop computers that make entire lives easy to energy- efficient washers that use half the power and time to complete their tasks. However，these new toys and equipment finally become electronic waste （ 电子垃圾）（e- waste）once they are out of use.

  A.Means of e-waste recycling

  B.How e-waste comes into being

  C.The benefit of e-waste recycling

  D.The technologies of e-waste recycling

  E.The importance of the electronic waste recycle

  F.Modern technology brings convenience and e-waste

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• 9E- waste includes everything from empty printer ink containers to broken refrigerators. As people  buy new items to replace aging electronics or make upgrades（升级），more electronic waste comes into being. In some cases，such as 2009's switch from analog（模拟）to digital television broadcasting in the United States，changes in technology are so great that old equipment may not even work at all with new systems.

  A.Means of e-waste recycling

  B.How e-waste comes into being

  C.The benefit of e-waste recycling

  D.The technologies of e-waste recycling

  E.The importance of the electronic waste recycle

  F.Modern technology brings convenience and e-waste

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• 10There are many reasons why it is important to recycle electronic waste. Much of the material used to construct electronics，including metal and plastic parts，can be recycled into new items at a discount of the cost and energy use needed to create things from new raw materials（原材料）. Additionally，many electronics contain poisonous substances （有毒物质）that are harmful to the environment and could be deadly if they go into an  area's groundwater. When properly recycled，they can be reused and will not do harm to the environment. Because of these environmental concerns，many areas require by law that electronic waste be properly recycled.

  A.Means of e-waste recycling

  B.How e-waste comes into being

  C.The benefit of e-waste recycling

  D.The technologies of e-waste recycling

  E.The importance of the electronic waste recycle

  F.Modern technology brings convenience and e-waste

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