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Recently a group of second-graders visited our school library to work on a “holidays around the world” project. The children created pictures showing holiday customs and then created voice recordings explaining what they drew. 小题1: Now imagine taking things one step further and creating Podcasts in a classroom setting. The term Podcast refers to an audio recording, linked to the Web, that can be downloaded to a personal MP3 player. The word is created from broadcast and from iPod—the wildly popular MP3 player from Apple. Using audio with students isn’t new, of course. Teachers have used audiobooks at listening centers and recorded student voice on tape or CD for many years. 小题2: Podcasts, however, can reach a much wider audience in a time frame outside the school days. Booktalking, an old way of getting kids excited about books, gets a tech assistance with Podcasting. Students can do some booktalking themselves; book review Podcasts seem to be another natural way for students to share what they know, providing an alternative to the book report. 小题3: Teachers made audio Podcasts, including visuals or video clips for any content area instruction and review. Some teachers have begun to record themselves teaching important concepts; this creates an account of information online for kids to access when they’re stuck on a homework assignment. 小题4: Imagine being a classroom teacher in September who can actually hear how his or her students were reading in June the school year before. You don’t need an iPod to make a Podcast. 小题5: While an MP3 player is a popular and useful gadget, your audience doesn’t need MP3 players to listen, either. Your students and their families can use the computer to play back what you’ve recorded. A.Audio and video files can also function as assessment tools. B.It is clearly showed in the incident that student-created voice recordings are effective. C.Podcasting is of vital importance to the classroom setting. D.Podcasting is used for various excellent reasons. E. You can make a Podcast if you have a computer, a microphone, and some free software. F. Podcasting needs a variety of devices. G. Voice and music have been seen as the original media for teaching.
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参考答案:
举一反三
【单选题】每个人的血量约为自身体重的( )。
A.
0.04
B.
0.06
C.
0.08
D.
0.1
【单选题】在分子晶体中,分子内原子之间的结合力是
A.
共价键
B.
离子键
C.
金属键
D.
范德华力
【判断题】你得到一奖中奖机会,有三扇门,一扇门后有大奖汽车,另二扇门后什么都没有,选择的门后有奖,你就会得到汽车,你选择一扇门后,主持人打开另外二扇门中无奖的门,你有一次选择机会,换门还是不换?
A.
正确
B.
错误
【简答题】疲劳断裂的过程包括 、 和
【单选题】分子晶体中,分子内原子之间的结合力是
A.
共价键
B.
离子键
C.
金属键
D.
范德华力
【单选题】分子晶体中,分子内原子之间的结合力是
A.
分 子 间 力(范德华力)
B.
共 价 键
C.
金属键
D.
离 子 键
【简答题】决定物质性质的重要因素是物质结构。请回答下列问题。 (1)下图是石墨的结构,其晶体中存在的作用力有 (填序号) Aσ键;Bπ键;C氢键;D配位键;E分子间作用力;F金属键;G离子键 (2)下面关于晶体的说法不正确的是___________ A.晶体熔点由低到高:CF 4 4 4 4 B.硬度由大到小:金刚石>碳化硅>晶体硅 C.熔点由高到低:Na>Mg>Al D.晶格能由大到小:NaF> NaCl...
【单选题】马克思主义产生的经济根源
A.
工业革命
B.
资本主义经济危机
C.
资本主义社会生产力生产关系的矛盾运动
D.
阶级斗争
【单选题】每个人的血量约为自身体重的
A.
4%
B.
6%
C.
8%
D.
10%
【单选题】每个人的血量约为自身体重的( )。
A.
0.04
B.
0.06
C.
0.08
D.
0.1
E.
0.12
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