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【单选题】
Common Faults and Eye Movement There are a number of bad habits which poor readers adopt. Most of these involve using extra body movement in the reading process. In efficient reading, the muscles of the eye should make the only external movement. Of course there must be vigorous mental activity, but extra body movements, such as pointing with the finger or moving the lips, do not help reading and often slow it down~ POINTING AT WORDS A fault that is often seen when students are trying to concentrate is pointing to the words with a finger, pencil or ruler. Young children and very poor readers often point with a finger at each word in mm. Slightly more mature readers sometimes hold a pencil or ruler underneath the line which they are reading. While marking the line might be helpful for beginning readers, it is certainly unnecessary for normal readers. Besides slowing down the reader through-the mere mechanical movement of pencil, ruler, or finger, pointing at lines or words tends to cause the student to focus his attention on the wrong thing. The important thing to concentrate on while reading is the idea. that the author is trying to communicate, and not the location of the words on the page. The eyes of any child old enough to learn how to read are certainly skillful enough to be able to follow a line of print without extra help from fingers or rulers. Another common fault that is easily observed is head movement. This most often occurs when students are nervous about their reading or trying hard, as during a reading speed test. With head movement the student tries to aim his nose at the word he is reading so that as he reads across the line his head turns slightly. When he makes the return sweep to begin a new line his head quickly turns back so that his nose is pointed at the left-hand margin, and he can now begin to read the new line by slowly turning his head. The belief that this head movement aids reading is pure nonsense. Eye muscles are quite capable of shifting the eyes from word to word, and they need no help from neck muscles. Often students are quite unaware that they are moving their heads while reading and they need to be reminded by the teacher not to do it. VOCALIZATION Vocalization is another fault. Some poor readers think it necessary to pronounce aloud each word as it is read. Usually this pronunciation is quite soft, so that the student is more whispering to himself than actually reading aloud, but even this is very undesirable. The chief disadvantage of pronouncing words while you read them is that it tends to tie reading speed to speaking speed, and the silent reading of most normal readers is nearly twice as fast as their speaking. Usually this fault can be eliminated in older students by their own conscious effort, possibly with the aid of a few reminders from the teacher. Vocalization by beginning readers is a common fault after a reader reaches some maturity it becomes very undesirable. Vocalization takes various modified forms. Sometimes a reader will merely move his lips soundlessly. At other times he may make tongue or throat movements without lip movement. Stir other readers will have activity going on in their vocal cords, which can be detected by the student if he places his fingers alongside his vocal cords in the throat while he is reading. Vocal cord vibration can be felt with the fingers quite easily. Like true vocalization, these minor parts of 'subvocalization' —lip movement, tongue or throat movement and vocal cord movement—can be stopped by conscious effort of the student. SUBVOCALIZATION Subvocalization is the most difficult of all types of vocalization. In subvocalization there is no body movement. The lips, tongue or vocal cords do not move. But an inner type of speech persists: within the student's mind he is saying each word to himself, clearly prono
A.
Y
B.
N
C.
NG
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【单选题】凯氏定氮法需要做空白样的目的是( )。
A.
消除蛋白质溶剂的影响
B.
消除反应试剂的影响
C.
消除实验装置和操作的影响
D.
消除蛋白质溶剂、反应试剂、装置及操作中可能引入的非蛋白含氮物的影响
【单选题】动能定理的数学表达式为()。
A.
W=mV 2 /2
B.
W=mgh
C.
W=mV 2 /2-mV 0 2 /2
D.
W=mV
【单选题】船舶主机操纵系统操纵方式的优先级从高到低排列是。① 驾驶室控制 ② 机舱集控室控制 ③ 机旁手动控制
A.
①②③
B.
①③②
C.
②①③
D.
③②①
【简答题】船舶主机操纵系统操纵方式的优先级从高到低排列是 。 1 驾驶室控制 2 机舱集控室控制 3 机旁手动控制
【单选题】电荷守恒定律在恒定电场中的数学表达式体现了经典物理学中一系列假说与推论,其中错误的是 。
A.
电荷不能独自生成与湮灭
B.
假设带正电粒子接触到带负电粒子,两个粒子带有电量相同,则因为这接触动作两个粒子会变为中性
C.
在任意位置,生成电荷需要输入能量 ,湮灭电荷会释放出能量
D.
在经典电磁场知识体系中,电位是绝对的,而不是相对的:即电位统一增加一个常数 ,电场就会发生改变
【判断题】()89.要拔下ECU的线束连接器,必须先拆下蓄电池负极搭铁线。
A.
正确
B.
错误
【简答题】下图为“хх”钙片商品标签图,请根据标签的有关信息完成下题。 (1)每片钙片中至少含钙元素的质量为 。(友情提醒:①钙片中的钙元素只存在于碳酸钙(CaCO 3 )中, ②只要写出计算式,不要算出结果。) (2)小花同学为测定其中碳酸钙的含量标注是否属实, 她取出10片钙片,研碎后放入小烧杯中,再加入足量的稀盐酸(HCl),测得反应后生成二氧化碳的质量为4.4克。请通过计算判断该钙片中碳酸钙(CaC...
【多选题】下列关于盈亏平衡分析的说法,正确的是( )。
A.
在盈亏平衡点上,企业的销售收入总额与总固定成本相等
B.
盈亏平衡点可用产量、销售收入、生产能力利用率及销售单价来表示
C.
盈亏平衡点过高或过低都表明项目抗风险能力不强
D.
项目的盈亏平衡情况可以通过画盈亏平衡图来直观地反映
E.
盈亏平衡图的纵坐标代表年销售收入或年总成本
【多选题】关于盈亏平衡分析,下列说法正确的是( )
A.
通过计算技术方案达产年盈亏平衡点(BEP),分析技术方案成本与收入的平衡关系
B.
用来判断技术方案对不确定性因素导致产销量变化的适应能力和抗风险能力
C.
可以用绝对值表示,如以实物产销量、单位产品售价等表示的盈亏平衡点
D.
以产销量和生产能力利用率表示的盈亏平衡点应用最为广泛
E.
只能用绝对值表示,不可以用相对值表示
【多选题】属于非流动负债的有
A.
长期借款
B.
应付债券
C.
长期应付款
D.
预收账款
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