1.连线题- (共1题)
2.选择题- (共18题)
某同学在学习了功率后，欲利用实验室中的打点计时器来测量一辆电动玩具小车正常行驶时的功率大小，实验装置如图甲所示．
其实验步骤如下：
①用天平测出玩具小车的质量为0.4kg
②接通打点计时器（打点周期为0.02s），待稳定后将小车以恒定功率释放，一段时间后关闭小车电源，打点计时器打出的一条纸带中的一部分如图乙所示（纸带左端与小车相连，相邻两计数点之间还有四个点未画出）．
回答下列问题：
两带等量异种电荷的小球用轻质细线悬挂于O点并置于水平向右的匀强电场E中，如图所示，a处小球带负电、质量为2mg，b处小球带正电、质量为mg，今用水平力F拉a处小球，整个装置处于平衡状态时，细线Oa与竖直方向的夹角为30°，细线ab与竖直方向的夹角为45°，则力F的大小为（ ）
| A．降落在陆地的可能性比降落在海洋的可能性大 |
| B．降落在陆地的可能性比降落在海洋的可能性小 |
| C．降落在陆地和降落在海洋的可能性一般大 |
| D．一定降落在南半球 |
阅读下面短文， 从短文后各题所给的四个选项 （A、B、C、D ）中，选出可以填入空白处的最佳选项。
Jenna, a popular girl from Westwood Middle School, had graduated first in her class and was ready for new 1 in high school.
2, high school was different. In the first week, Jenna went to tryouts (选拔赛) for cheerleaders (拉拉队队员). She was competing against very talented girls, and she knew it would be 3 for her to be selected. Two hours later, the 4 read a list of the girls for a second tryout. Her heart 5 as the list ended without her name. Feeling 6, she walked home carrying her schoolbag full of homework.
Arriving home, she started with math. She had always been a good math student, but now she was 7. She moved on to English and history, and was 8 to find that she didn't have any trouble with those subjects. Feeling better, she decided not to 9 math for the time being.
The next day Jenna went to see Mrs. Biden about being on the school 10. Mrs. Biden wasn't as 11 as Jenna. “I'm sorry, but we have enough 12 for the newspaper already. Come back next year and we'll talk then.” Jenna smiled 13 and left. “Why is high school so 14?” she sighed.
Later in 15 class, Jenna devoted herself to figuring out the problems that had given her so much 16. By the end of class, she understood how to get them right. As she gathered her books, Jenna decided she'd continue to try to 17 her new school. She wasn't sure if she'd succeed, but she knew she had to 18. High school was just as her mom had said: “You will feel like a small fish in a big pond 19 a big fish in a small pond. The challenge is to become the 20 fish you can be.”
A、B两小球用不可伸长的轻绳悬挂在同一高度，如图所示，A球的质量小于B球的质量，悬挂A球的绳比悬挂B球的绳更长．将两球拉起，使两绳均被水平拉直，将两球由静止释放，两球运动到最低点的过程中（ ）
3.填空题- (共8题)
4.解答题- (共3题)
人们常说，气候好像越来越暖了，冬天不像以前那么冷。气象观测表明，全球气候确实有变暖的趋势，近百年来全球平均气温上升了0.40.8℃。气温上升,会使极地区的冰雪融化，引起全球的海平面上升。如果海平面上升沿海低地地区可能被淹没。
气候为什么会变暖，科学家认为，二氧化碳对大气有保温作用。人类一方面燃烧煤、石油等，大量排放二氧化碳；另一方面，砍伐森林减少了森林对二氧化碳的吸收，结果使得大气中二氧化碳的含量增加，气温也就随着升高了。
（1）气候为什么会变暖？
（2）防止全球变暖，我们可以采取的措施有哪些？
（1）图中字母代表的大洋名称
A 洋B 洋C 洋D 洋
（2）图中字母代表的大洲的名称
E 洲F 洲G 洲H 洲
（3）我们中国位于 洲。世界上面积最大的大洲是 洲。
（4）全球海陆面积对比来看，____分是陆地，____分是海洋。
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【1】题量占比
连线题:(1道)
选择题:(18道)
填空题:(8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：0
5星难题：0
6星难题：8
7星难题：0
8星难题：11
9星难题：1