1.选择题- (共3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7题)
A.由真空中点电荷的电场强度公式![]() |
B.由![]() |
C.小磁针N极所受磁场力的方向就是该处磁感应强度的方向 |
D.一小段通电导体在磁场中某处不受磁场力作用,则该处磁感应强度一定为零 |

A.电场线MN的方向一定是由M指向N |
B.带电粒子在a点的加速度一定大于在b点的加速度 |
C.带电粒子由a运动到b的过程中动能一定逐渐减小 |
D.带电粒子在a点的电势能一定大于在b点的电势能 |

A.这三束负离子的速度一定不相同 |
B.这三束负离子的电荷量一定不相同 |
C.这三束负离子的比荷一定不相同 |
D.这三束负离子的质量一定不相同 |

A.增大磁场的磁感应强度 |
B.增大匀强电场间的加速电压 |
C.增大D形金属盒的半径 |
D.减小狭缝间的距离 |
A.线圈中感应电动势每秒增加1V |
B.线圈中感应电动势每秒减少1V |
C.线圈中感应电动势始终为1V |
D.线圈中感应电动势始终为一个确定值,但由于线圈有电阻,电动势小于1V |

A. 有顺时针方向的电流,且有收缩的趋势
B. 有顺时针方向的电流,且有扩张的趋势
C. 有逆时针方向的电流,且有收缩的趋势
D. 有逆时针方向的电流,且有扩张的趋势
3.多选题- (共3题)

A.a与地面间的摩擦力增大 |
B.a与地面间的摩擦力减小 |
C.a、b一起运动的加速度增大 |
D.a、b一起运动的加速度减小 |
A.库仑提出了分子电流假说 |
B.奥斯特发现了电流的磁效应 |
C.法拉第首先发现了电磁感应现象 |
D.楞次提出了磁场对运动电荷的作用力公式 |

A.当小球运动到d点时,不受洛伦兹力 |
B.小球能越过d点并继续沿环向上运动 |
C.小球从b点运动到c点的过程中,经过弧bc中点时速度最大 |
D.小球从d点运动到b点的过程中,电势能增大,重力势能减小 |
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)匀强场的电场强度;
(2)O点与最高点间的电势之差。

5.实验题- (共1题)




6.- (共1题)
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【1】题量占比
选择题:(3道)
单选题:(7道)
多选题:(3道)
解答题:(3道)
实验题:(1道)
:(1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:0
5星难题:0
6星难题:6
7星难题:0
8星难题:7
9星难题:2