单词：reactivity experiment
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[ti:UNIT 4 Look into Science! Lesson 25: Let's Do an Experiment!] [0:00.466]UNIT 4 第四单元 [0:02.644]Lessons 25～32 第25~32课 [0:05.438]Look into Science! 观察科学！ [0:07.483]You Will Learn 你将学到 [0:08.630]Functions 实际应用
河北教育初中英语（初中起点）八年级下册
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英语广播节选
[00:02.99]3 Listen and order. [00:07.30]You will hear Miss Wang give instructions on [00:10.67]how to use a Bunsen burner. [00:14.04]Listen to the instructions [00:15.94]and number the pictures in the correct order. [00:20.12]Number the steps 1-8. [0
外研社新标准初中英语九年级
It's always fun when my brother comes to visit from New Zealand. Because he is a math and science teacher, he often thinks of interesting things to do that fascinate the children. When he heard that one of my sons does experiments in the kitchen for
英语博客 A cup of English
Sidney was a 14-year-old boy with an interest in the sciences. One summer day he started his own investigations. With his 12-year-old sister Sophie in tow, he caught a large bull frog in a local pond. Sidney started his experiment with the amphibian,
英汉幽默故事选读
EDUCATION REPORT - Duke iPod Experiment By Nancy Steinbach Broadcast: Thursday, August 05, 2004 This is Steve Ember with the VOA Special English Education Report. Duke University in Durham, North Caro
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