1.单选题- (共6题)
| A．v2/g | B．v2/2g | C．v2/3g | D．v2/4g |
| A．足球由1运动到2的过程中，重力做的功为mgh |
| B．足球由1运动到3的过程中，重力做的功为2mgh |
| C．足球由2运动到3的过程中，重力势能减少了mgh |
| D．如果没有选定参考平面，就无法确定重力势能变化了多少 |
| A．物体的动能减少了8J | B．物体的重力势能增加了20J |
| C．物体的机械能保持不变 | D．物体的机械能减少了12 J |
| A．一个物体所受的合外力为零，它的机械能一定守恒 |
| B．一个物体做匀速运动，它的机械能一定守恒 |
| C．一个物体所受的合外力不为零，它的机械能可能守恒 |
| D．一个物体所受合外力的功为零，它一定保持静止或匀速直线运动 |
2.选择题- (共14题)
根据短文内容，选择最佳答案。
Dear Tim,
Today is Saturday. It's 7:00 in the evening here. I'm writing to tell you something about my life. My father is watching CCTV news. That's his favorite program. My brother is playing computer games. My dog Dick is taking the hat to me. He wants me to put it on and go out for a walk with him. What a clever dog! My little sister is practicing playing the piano. It sounds beautiful today. Outside, I can hear cars and buses coming and going quickly. Also there are some boys playing ball games.
It's really a noisy but happy evening. Do you think so?
What are your family doing? I know the time here is thirteen hours ahead of (提前) that in New York. Are you getting up?
Please write to me soon. Best wishes!
Yours,
Denial
根据短文内容，选择最佳答案。
Dear Tim,
Today is Saturday. It's 7:00 in the evening here. I'm writing to tell you something about my life. My father is watching CCTV news. That's his favorite program. My brother is playing computer games. My dog Dick is taking the hat to me. He wants me to put it on and go out for a walk with him. What a clever dog! My little sister is practicing playing the piano. It sounds beautiful today. Outside, I can hear cars and buses coming and going quickly. Also there are some boys playing ball games.
It's really a noisy but happy evening. Do you think so?
What are your family doing? I know the time here is thirteen hours ahead of (提前) that in New York. Are you getting up?
Please write to me soon. Best wishes!
Yours,
Denial
补全对话(选择)。
A: Hi, Mike! Is this notebook yours?
B: {#blank#}1{#/blank#} My notebook is in my desk. It may(可能) be Tom's.
A: {#blank#}2{#/blank#}
B: He is in the library.
A: Well, let's call him. {#blank#}3{#/blank#}
B: It's 733-0054.
...
A: Hi, Tom! A notebook is in our classroom. Is it yours?
C: {#blank#}4{#/blank#}
A: Yes, it's on the teacher's desk.
C: Oh, it's mine. Thanks.
A: {#blank#}5{#/blank#}
A. Where is Tom? B. No, it isn't. C. I'm sorry. D. You're welcome. E. Yes, it is. F. Is it on the teacher's desk? G. What's his telephone number? |
3.多选题- (共1题)
4.填空题- (共3题)
5.解答题- (共2题)
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【1】题量占比
单选题:(6道)
选择题:(14道)
多选题:(1道)
填空题:(3道)
解答题:(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：2
7星难题：0
8星难题：8
9星难题：2