“纳米材料”是指粒子直径在几纳米到几十纳米的材料．若将“纳米材料”分散到液体分散

发布时间：2017-07-26 14:55 │ 来源：www.tikuol.com

题型：选择题

问题：

“纳米材料”是指粒子直径在几纳米到几十纳米的材料．若将“纳米材料”分散到液体分散剂中，所得混合物具有的性质是（　　）

A．能全部透过半透膜

B．有丁达尔效应

C．所得液体一定能导电

D．所得物质一定为悬浊液或乳浊液

考点：生活中的其他材料及应用（纳米材料、功能高分子材料等）

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如图所示，两列振幅和波长都相同而传播方向相反的机械横波，在相遇的某一时刻“突然”消失．设在这一时刻两波相遇的介质里有a、b、c三个介质质点，其中b点是相遇区域的中点．可以判断，质点______的振动速度为零；质点______的振动速度不为零且方向向下．

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题型：选择题

欣赏下列诗歌，完成问题。

【甲】
　　　　　我爱这土地
　　　　　　（艾青）　　
假如我是一只鸟，　　
我也应该用嘶哑的喉咙歌唱。　　
这被暴风雨所打击着的土地，　　
这永远汹涌着我们的悲愤的河流，　　
这无止息地吹刮着的激怒的风，
　　
和那来自椿间的无比温柔的黎明……　　
——然后我死了，　　
连羽毛也腐烂在土地里面。
　　
为什么我的眼里常舍泪水？　　
因为我对这土地爱得深沉……　　

【乙】
　　　　春望
　　　（杜甫）　　
国破山河在，城春草木深，　　
感时花溅泪，恨别鸟惊心。　　
烽火连三月，家书抵万金，　　
白头搔更短，浑欲不胜簪。

1．甲诗中与乙诗“国破山河在，城春草木深”一句一样都是描绘祖国破败不堪景象的诗句是：_______________________
2．为了抒写作者的爱国之情，甲、乙两诗各刻画了一个令人感动的形象，请对这两个形象各写一句评价的语句。
甲诗的形象；_____________________________
乙诗的形象：_____________________________
3．甲诗中写到“鸟”用“嘶哑的喉咙歌唱”，乙诗中也写到“鸟惊心”的情景，放飞思绪，展开想像·面对山河破碎，假如你就是两诗中的那只鸟，你在叙说些什么？
_________________________________________

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题型：选择题

完形填空。

     On May 27, 1995, our life was suddenly changed. It happened a few minutes past three,   1 my husband,
Chris, fell from his horse as it   2 over a fence. Chris was paralyzed (瘫痪) from the chest down,   3 to
breathe normally. As he was thrown from his horse, we entered into a life of   4 with lots of unexpected
challenges (挑战). We went from the "haves" to the "have-nots". Or so we thought.
       5 what we discovered later were all the gifts that came out of   6 difficulties. We came to learn that
something   7 could happen in a disaster. All over the world people   8   Chris so much that letters and
postcards poured in every day. By the end of the third week in a   9 center in Virginia, about 35,000 pieces of
10  had been received and sorted.
     As   11 , we opened letter after letter. They gave us  12  and became a source of strength for us. We used
them to  13  ourselves. I would go to the pile of letters marked with "Funny" if we needed a  14 , or to the
"Disabled" box to find advice from people in wheelchairs or  15  in bed living happily and  16 .
     These letters, we realized, had to be shared. And so  17  we offer one of them to you. Dear Chris, My
husband and I were so sorry to hear of your  18   accident last week. No doubt your family and your friends are
giving you the strength to face this  19  challenge. People everywhere are also giving you best wishes every day
and we are among those who are keeping you   20 .
                                                                                                                                    Yours Sincerely,
                                                                                                                                    Nancy Reagan

( )1. A.since
( )2. A. walked
( )3. A. able
( )4. A. disability
( )5. A. So
( )6. A. sharing
( )7. A. terrible
( )8. A. wrote for
( )9. A. medical
( )10. A. news
( )11. A. patients
( )12. A. effect
( )13. A. encourage
( )14. A. cry
( )15. A. much
( )16. A. bitterly
( )17. A. here
( )18. A. driving
( )19. A. technical
( )20. A. nearby

B. before
B. climbed
B. unable
B. possession
B. For
B. separating
B. similar
B. cared for
B. postal
B. paper
B. a family
B. effort
B. express
B. laugh
B. never
B. fairly
B. there
B. flying
B. different
B. close

C. when
C. pulled
C. suitable
C. convenience
C. Or
C. fearing
C. wonderful
C. hoped for
C. experimental
C. equipment
C. nurses
C. comfort
C. control
C. chat
C. even
C. weakly
C. therefore
C. running
C. difficult
C. busy

D. while
D. jumped
D. unsuitable
D. experience
D. Yet
D. exploiting
D. practical
D. sent for
D. mental
D. mail
D. a group
D. explanation
D. treat
D. sigh
D. seldom
D. successfully
D. forward
D. riding
D. valuable
D. alive

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题型：选择题

主要产品单位成本表的分析只应选择成本超支较多的产品进行重点分析。（）

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对于患儿体质虚弱，肺部感染有干性啰音者，在揉上马时应配以下哪穴：（）

A.揉小横纹

B.推四横纹

C.揉肾纹

D.揉肾顶

E.清大肠

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