1.选择题- (共7题)
请以《他（她）是我的榜样》为题目，运用多种描写手法，写出人物的性格特点，写出他/她的榜样作用。
要求：①不少于600字；②要有真情实感，文从字顺；③文中不能出现真实的人名、校名、地名。
请以《他（她）是我的榜样》为题目，运用多种描写手法，写出人物的性格特点，写出他/她的榜样作用。
要求：①不少于600字；②要有真情实感，文从字顺；③文中不能出现真实的人名、校名、地名。
阅读理解
One day, Justin decided to spend the holiday with his old friend Andrew in Australia. Their plane arrived in Sydney at ten in the morning. They had a good rest in a hotel. The next morning they rented(租)a car and began their travel. Justin found a river and they drove the car there quickly. Soon they got to the river. Before they jumped into the water, Andrew saw a boy playing under a big tree. He asked, “Are there any crocodiles(鳄鱼)in the river? ”“No, there aren’t, ”answered the boy. So they began to swim in the river. After a while, Justin felt something hit against(撞击)his leg. He told Andrew about it. They were afraid and stopped swimming. Andrew asked the boy loudly, “Is it true that there aren’t any crocodiles in the river? ”
“Yes, sir, ”said the boy, “But there are many sharks(鲨鱼)in the river. ”
阅读理解
One day, Justin decided to spend the holiday with his old friend Andrew in Australia. Their plane arrived in Sydney at ten in the morning. They had a good rest in a hotel. The next morning they rented(租)a car and began their travel. Justin found a river and they drove the car there quickly. Soon they got to the river. Before they jumped into the water, Andrew saw a boy playing under a big tree. He asked, “Are there any crocodiles(鳄鱼)in the river? ”“No, there aren’t, ”answered the boy. So they began to swim in the river. After a while, Justin felt something hit against(撞击)his leg. He told Andrew about it. They were afraid and stopped swimming. Andrew asked the boy loudly, “Is it true that there aren’t any crocodiles in the river? ”
“Yes, sir, ”said the boy, “But there are many sharks(鲨鱼)in the river. ”
阅读理解
One day, Justin decided to spend the holiday with his old friend Andrew in Australia. Their plane arrived in Sydney at ten in the morning. They had a good rest in a hotel. The next morning they rented(租)a car and began their travel. Justin found a river and they drove the car there quickly. Soon they got to the river. Before they jumped into the water, Andrew saw a boy playing under a big tree. He asked, “Are there any crocodiles(鳄鱼)in the river? ”“No, there aren’t, ”answered the boy. So they began to swim in the river. After a while, Justin felt something hit against(撞击)his leg. He told Andrew about it. They were afraid and stopped swimming. Andrew asked the boy loudly, “Is it true that there aren’t any crocodiles in the river? ”
“Yes, sir, ”said the boy, “But there are many sharks(鲨鱼)in the river. ”
2.单选题- (共8题)
| A．重心是物体的各部分所受重力的合力的作用点 |
| B．形状规则的物体的重心必与其几何中心重合 |
| C．重心是物体上最重的一点 |
| D．直铁丝被弯曲后，重心便不在中点，但一定还在铁丝上 |
| A．地面受到了向下的弹力，是因为汽车发生了形变 |
| B．汽车受到了向上的弹力，是因为汽车发生了形变 |
| C．地面受到了向下的弹力，是因为地面发生了形变 |
| D．汽车受到了向上的弹力，是因为地面发生了形变 |
| A．物块接触弹簧后即做减速运动 |
| B．物块接触弹簧后先加速后减速 |
| C．当弹簧处于压缩量最大时，物块的加速度不等于零 |
| D．当物块的速度为零时，它所受的合力不为零 |
| A．0 |
| B．4m/s2，水平向左 |
| C．2m/s2，水平向左 |
| D．4m/s2，水平向右 |
的斜面上，放一质量为
的小球，小球被竖直的木板挡住，不计摩擦，则小球对木板的压力是（）
| A．质点是一个理想化模型，实际上并不存在 |
| B．物体的速度为零，其加速度也一定为零 |
| C．一个运动的物体，如果不再受力了，它总会逐渐停下来；这说明，静止状态才是物体长时间不受力时的“自然状态” |
| D．N、kg、m 是在国际单位制中，力学的三个基本单位 |
| A．7 m/s | B．10 m/s | C．14 m/s | D．20 m/s |
3.多选题- (共6题)
| A．在t=2s时，甲、乙相遇 |
| B．在t=2s时，甲、乙的运动方向将发生改变 |
| C．在t=2s~t=6s内，乙的加速度方向发生改变 |
| D．在t=2s~t=6s内，甲相对乙做匀速直线运动 |
| A．μmgsinθ |
| B．μ(mgcosθ+Fsinθ) |
| C．μ(mgcosθ﹣Fsinθ) |
| D．Fcosθ﹣mgsinθ |
的一个分力
跟
角，大小未知，
，则另一个分力
| A．合力的大小一定大于每一个分力的大小 |
| B．合力的大小至少大于其中一个分力的大小 |
| C．合力的大小可能比每一个分力都大也有可能比每一个分力都小 |
| D．合力的大小可能与两个分力的大小相等 |
| A．作用力F跟墙壁对物体的压力是一对作用力与反作用力 |
| B．作用力F与物体对墙壁的压力是一对平衡力 |
| C．物体的重力跟墙壁对物体的静摩擦力是一对平衡力 |
| D．物体对墙壁的压力与墙壁对物体的压力是一对作用力与反作用力 |
4.解答题- (共2题)
(1)求AO 、BO的拉力各为多大？
(2)若AO、BO、CO所能承受的最大拉力均为 100N，则所吊重物重力最大不能超过多大？（要求作出受力图，sin37°=0.6，cos37°=0.8）
(1)物体的加速度大小；
(2)2s 末物体的瞬时速度大小和 2s 时间内物体通过的位大小分别为多少？
(3)经过 2s 撤去 F，再经 3s 时物体的速度。
5.实验题- (共2题)
(1)由图可读得两个相互垂直的拉力的大小分别为________N和________N(只需读到0.1 N)．
(2)在方格纸上按作图法的要求画出这两个力及它们的合力___．
(1)实验前，在进行平衡摩擦力的操作时，下列注意事项正确的是（_______）
| A．应该让小车连接纸带并穿过打点计时器 |
| B．必须让小车连接沙桶 |
| C．纸带和沙桶都应连接 |
| D．纸带和沙桶都不能连接 |
”)．
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【1】题量占比
选择题:(7道)
单选题:(8道)
多选题:(6道)
解答题:(2道)
实验题:(2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：4
7星难题：0
8星难题：9
9星难题：5