问题 选择题

禽流感又被称为真性鸡瘟,其中高致病性禽流感是由A型流感病毒引起的。流感病毒如果被加热至65-70℃时只要几分钟即丧失活性。在阳光直射下40-48小时即可失去活性,紫外线直射可迅速破坏其感染性。流感病毒对乙醚、氯仿、丙酮等有机溶剂也很敏感。以下说法错误的是[ ]

A.漂白粉、碘剂和重金属离子都能迅速破坏流感病毒的传染性

B.高温、紫外线等则堪称流感病毒的“克星”

C.流感病毒对热比较敏感

D.在日光灯的照射下流感病毒即迅速失去活性

答案

答案:D

完形填空

Five tips to succeed in school

[1]Develop a love of learning.

Many students know that school is important, but that’s not enough. You have to learn that learning does not stop with a grade or diploma —— it’s a way of life. You can even learn a lot from everyday activities at home —— reading, writing, listening to music or talking with your parents. All these activities are a kind of intellectual development.

[2]Get yourself organized.

Make a work plan and put all the homework on a calendar. Without a plan, students can easily forget what they have to do. Older students especially need such a plan as they have so many physical, emotional and academic events taking place in their lives.

[3] Eat with your parents as a family.

Dinner is a valuable opportunity for the family to spend time together. During dinner time, children have the opportunity to express their ideas, to argue and to develop their verbal skills.

[4]The process is more important.

Many times, all we see is the grade. In fact, the process of learning is much more important than the result, because result is always the thing of the past but the experience learned from the process can be used again in the future. When in need of help, ask others to give you the tools to find the answers yourselves. For example, instead of asking your parents to tell you where India is, ask them to show you how to use a map.

[5]Keep your expectations high.

Don’t be afraid to aim high. You can reach your goals. Set practical goals and do your best to reach them. If you make one step forward, you’ll enjoy making more. In this way you are building a bright future for yourself.

小题1:Which activities are mentioned as a kind of intellectural development in the passage? (within 10 words)

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小题2:According to the passage, why do students need a plan? (within 10 words)

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小题3:What’s the benefit of eating with parents? (within 15 words)

                                                                              

小题4:For what purpose does the author mention the example of using a map? (within 15 words)

                                                             

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