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(1)甲实验的目的是探究钢球动能的大小与 的关系;实验时,它是通过观察 ,从而判断钢球动能的大小。
(2)进行乙实验时,每一次都让同一小车从斜面上相同的高度由静止滑下,其目的是使小车在水平面运动的起始 相同;通过观察小车在粗糙程度不同的水平面上运动 来判断小车在不同的水平面受到 的大小.从而可以推理:如果运动的物体不受力,它将 。 查看习题详情和答案>>
选择划线部分正确的汉语释义
Are Jim and Li Lei in the same class?
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]A. 在同一个课上 B. 同样在上课
C. 在同一个班里 D. 在不同的班里
查看习题详情和答案>>阅读短文,然后按要求完成各题。
Last Friday, after doing all the family shopping in town, I wanted to have a rest before catching the train.I bought a newspaper and some chocolate and went into the station coffee shop.It was a cheap self-service place with long tables to sit at.I put my heavy bag down on the floor, put the newspaper and chocolate on the table and then(A)去要一杯咖啡.
When I came back with the coffee, there was someone sitting in the next seat.It was a boy, with dark glasses and old clothes, and his hair was coloured bright red at the front.He had started to eat my chocolate!
Naturally, I was rather uneasy about him, but I didn't want to have any trouble.I just looked down at the front page of the newspaper, tasted my coffee and took a bit of chocolate.The boy looked at me closely.Then he took a second piece of my chocolate.I could hardly believe it.(B)Still I didn't say anything to him.When he took a third piece, I felt more angry than uneasy.I thought,“Well, I shall have the last piece.”And I got(C)it.
The boy gave me a strange look, then stood up.As he left he shouted out,“There's something wrong with that woman!”Everyone looked at me, but I did not want to quarrel with the boy, so I kept quiet.I did not realize that I had made a mistake until I finished my coffee and was ready to leave.My face turned red when I saw my unopened chocolate(D)________ the newspaper.The chocolate that I had been eating was the boy's!
1.将画线部分(A)译成英语:_____________________
2.将画线部分(B)改写为:Still I ________ ________ to him.
3.文中能替代画线部分(C)的短语是:_____________
4.在D的空白处填入一个适当的词语:___________
5.文中描写男孩目光神情的词语是:_____________
run, Sunday dance, English, egg, Tuesday, apple, Math
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1.食品 |
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2.课程 |
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3.星期 |
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请你根据表格中所给的提示词,把下面这些单词分别写在不同的分栏里。(每空只填写一个单词)
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| Weather 天气 | |||
| Personalities 性格 | |||
| Animals 动物 | |||
| Places 地点 | |||