1.选择题- (共1题)
阅读理解
The question of what children learn, and how they should learn it, is continually being debated and redebated. Nobody dares any longer to defend the old system, the parrot-fashion(way of learning by repeating what others say)of learning lessons, the grammar-with-a-whip(鞭子)system, which was good enough for our grandparents. The theories of modern psychology have stepped in to argue that we must understand the needs of our children. Children are not just small adults; they are children who must be respected as such.
Well, you may say, this is as it should be, and a good idea. But think further. What happens? “Education” becomes the responsibility not of teachers, but of psychologists. What happens then? Teachers worry too much about the psychological implications(暗示) of their lessons, and forget about the subjects themselves. If a child dislikes a lesson, the teacher feels that it is his fault, not the child's. So teachers worry whether history is “relevant” to modern young children. And do they dare to recount stories about violent battles? Or will this make the children themselves violent? Can they tell their classes about children of different races, or will this encourage racial hatred? Why teach children to write grammatical sentences? Oral expression is better. Sums? Arithmetic? No; real-life mathematical situations are more understandable.
You see, you can go too far. Influenced by educational theorists, who have nothing better to do than write books about their ideas, teachers leave their teaching-training colleges filled with grand, psychological ideas about children and their needs. They make complicated preparations and try out their “modern methods” on the long-suffering children. Since one “modern method” rapidly replaces another, the poor kids will have well been fed up by the time they leave school. Frequently the modern methods are so complicated that they fail to be understood by the teachers, let alone the children; even more often, the relaxed discipline so necessary for the “informal” feeling the class must have, prevents all but a handful of children from learning anything.
2.单选题- (共2题)

A.a、b、c三小球带同种电荷 |
B.a、c两小球带异种电荷 |
C.a小球带电量为-4Q |
D.c小球带电量为+4Q |

A.导线A端接电池负极 |
B.铁钉内磁场方向向右 |
C.铁钉左端为电磁铁的N极 |
D.小磁针所在位置的磁场方向水平向右 |
3.多选题- (共2题)

A.图甲为等量异种点电荷形成的电场线 |
B.图乙离点电荷距离相等的 a、b 两点场强相同 |
C.图丙中在 c 点静止释放一正电荷,可以沿着电场线运动到 d 点 |
D.图丁中某一电荷放在 e 点与放到 f 点,它们的电势能相同 |

A.质谱仪是分析同位素的重要工具 |
B.速度选择器中的磁场方向垂直于纸面向外 |
C.能通过狭缝P的带电粒子的速率等于![]() |
D.粒子打在胶片上的位置越靠近狭缝P,粒子的比荷越小 |
4.解答题- (共3题)

(1)金属棒所受安培力的方向;
(2)磁感应强度的大小。

(1)电场强度E的大小;
(2)粒子到达a点时速度的大小和方向;
(3)abc区域内磁场的磁感应强度B的最小值。
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【1】题量占比
选择题:(1道)
单选题:(2道)
多选题:(2道)
解答题:(3道)
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【2】:难度分析
1星难题:0
2星难题:0
3星难题:0
4星难题:1
5星难题:0
6星难题:4
7星难题:0
8星难题:1
9星难题:1