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【简答题】
How did men first learn to invent words? It is still unknown to people; in other words, the origin* of language is a mystery. All we suppose is that some early men invented certain sounds, in one way or another, to express thoughts and feelings,actions and things, so that they could communicate with each other; and that later they agreed upon certain signs, called letters, which could be combined* to present those sounds, and which could be written down. Those sounds, whether spoken or written in letters, we call words. We are sure that the power of words lies in their associations-- the things they bring up before our minds. Words become filled with meaning for us by experience; and the longer we live, the more certain words make us think of the glad and sad things of our past; and the more we read and learn, the more the number of words that mean something increases. Great writers are those who not only have great thoughts but also express these thoughts in words which strongly appeal to people and have great effect on our minds and feelings. This lovely and wonderful use of words is what we call literary* style. Above all, the real poet is a owner of words. He can express his meaning in words which sing like music and which by their position* and association can move men to tears. We should learn to choose our words carefully and use them true, or they will make our speech silly and low. 小题1:From the passage, we learn that language might begin with . A.feelings B.actions C.signs D.sounds 小题2:The underlined phrase appeal to probably means . A.to interest B.to let... down C.to make...relaxed D.to surprise... 小题3:What is the second paragraph mainly about? A.The power of new words B.The importance of old words C.The association of our experience with words D.The change and development of words 小题4:From the passage, we can learn that ________. A.people have discovered how words came from B.it’s enough for a good writer to have great thoughts C.the anthor suggest people to use words with right skills D.the longer we live, the number of words that mean something will be smaller.
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参考答案:
举一反三
【单选题】测试导入单选题15枕左前的胎方位缩写是
A.
选择1LSA
B.
选择2LOA
C.
选择3RSA
D.
选择4ROA
E.
选择5LOP
【简答题】固定在一起的两个同轴均匀圆柱体可绕其光滑的水平对称轴 转动.设大小圆柱体的半径分别为 和 ,质量分别为 和 .绕在两柱体上的细绳分别与物体 和 相连, 和 则挂在圆柱体的两侧,如题3.12图所示.设 =0.20m, =0.10m, =4 kg, =10 kg, = =2 kg,且开始时 , 离地均为 =2m.求: (1)柱体转动时的角加速度; (2)两侧细绳的张力.
【简答题】{固定在一起的两个同轴均匀圆柱体可绕其光滑的水平对称轴 转动.设大小圆柱体的半径分别为 和 ,质量分别为 和 .绕在两柱体上的细绳分别与物体 和 相连, 和 则挂在圆柱体的两侧,如题3.8图所示.设 =0.20m, =0.10m, =4 kg, =10 kg, = =2 kg,且开始时 , 离地均为 =2m.求: (1)柱体转动时的角加速度; (2)两侧细绳的张力. } {
【判断题】羟基可与水形成氢键,因此凡含有羟基的化合物均易溶于水
A.
正确
B.
错误
【判断题】“现在的大学生只懂理论,不懂实践!”这句用人单位的评语,说明当代大学生十分精通理论知识。
A.
正确
B.
错误
【多选题】钢材中最主要含有的化学元素是( )。
A.
B.
C.
D.
【单选题】固定在一起的两个同轴均匀圆柱体可绕其光滑的水平对称轴 转动。设大小圆柱体的半径分别为 和 ,质量分别为 和 。绕在两柱体上的细绳分别与物体 和 相连, 和 则挂在圆柱体的两侧,设 =0.20m, =0.10m, =4 kg, =10 kg, = =2 kg,且开始时 , 离地均为 =2m。则两侧细绳的张力分别为( )。 (a)图 (b)图
A.
20.8N;17.1N
B.
20.8N;14.1N
C.
17.8N;17.1N
D.
17.8N;14.1N
【单选题】“学而时习之”中的“习”,意思是
A.
复习
B.
温习
C.
践习
D.
以上都不是
【简答题】固定在一起的两个同轴均匀圆柱体可绕其光滑的水平对称轴 转动.设大小圆柱体的半径分别为 和 ,质量分别为 和 .绕在两柱体上的细绳分别与物体 和 相连, 和 则挂在圆柱体的两侧,如题3.8图所示.设 =0.20m, =0.10m, =4 kg, =10 kg, = =2 kg,且开始时 , 离地均为 =2m.求: (1)柱体转动时的角加速度; (2)两侧细绳的张力.
【单选题】电容器可用万用表 () 档进行检查。
A.
电压
B.
电流
C.
电阻
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