标签：oxygen 相关文章
[00:00.00] Module 2 [00:08.59]Unit 1 [00:14.16]Exercise 1 [00:20.22]Listen and complete the sentences. [00:25.47]A.It can walk. [00:30.82]B.It can talk. [00:35.87]C.It will do the housework. [00:44.04]D.It will work in shops. [00:49.50]E.It will help
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[00:00.00]Review Module [00:05.09]Unit 1 [00:10.66]1.Listen and point.Then point and say. [00:23.41]He's going up the hill. [00:40.99]4.Listen and match.Then point and say. [00:56.24]Amy is going to take pictures. [01:21.82]Unit 2 [01:26.57]3.Listen
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[00:00.00]Activity book Module 1 [00:04.91]Unit 3 [00:08.25]Activity 1 [00:11.73]Listen and draw tick or cross. [00:16.88]Is it a girl? [00:20.85]Is it a woman? [00:23.90]Is it a boy? [00:26.85]Is it a boy? [00:30.67]Is it a girl? [00:35.63]Is it a m
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[00:00.00] Module 7 Revision [00:05.69]1.Listen and choose the information. [01:34.88]2.Look at the pictures,listen and answer the questions. [02:31.04]3.Listen to the dialogue and choose the right answers. [05:33.84]4.Listen to the statements and sa
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1. Australia's Qantas Airlines has been ordered to urgently inspect every oxygen bottle aboard its fleet of Boeing 747s. Investigators are focusing on the idea that an oxygen cylinder might have exploded mid-flight, ripping a hole in the side of the
美联社新闻一分钟2008年(七)月
Weddings in the United States vary as much as the people do. There are church weddings with a great deal of fanfare; there are weddings on mountain-top with guests barefooted; and there have been weddings on the ocean floor with oxygen tanks for the
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Can Oxygen Be Toxic? 氧气有毒吗？ In order for us to live we must have oxygen, so how can it be bad for us? Today we explain how oxygen can be toxic. 氧气是我们生存所必需的，所以它怎么会对我们有害呢？今天我们来解释
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Matthew / England speaker I hope not. I hope if they are driving cars they are run on hydrogen or perhaps something else, electricity perhaps, but I really hope we don't use gasoline anymore. Maiko / Japan speaker I do think in 100 years people will
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Module 5 Zoo animals Unit 13 They are going to the zoo panda 熊猫 say 说 says 说(say的第三人称单数) forget 忘记 See you tomorrow. 明天见. bear 熊 polar bear 北极熊 lion 狮子 elephant 象 giraffe 长颈鹿 deer 鹿 snake 蛇 thro
广州小学五年级 (上) 课本(2003)
[00:00.00] Module 9 [00:08.20]Unit 1 [00:13.35]Exercise 1 [00:18.49]Listen to the sentences, [00:22.86]then read and circle true or false. [00:27.61]Sam had an accident yesterday. [00:31.74]Sam and Daming went for a bike ride. [00:36.68]Then they wer
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[00:00.00] Module 8 [00:07.89]Unit 1 [00:14.05]Exercise 1 [00:19.80]Listen and repeat. [00:24.56]a ship [00:29.91]board [00:35.37]a village [00:43.52]shout [00:48.85]a wolf [00:54.20]a field [01:00.06]Exercise 2 [01:08.81]Listen to the sentences,and
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[00:00.00] Module 4 [00:08.99]Unit 1 [00:14.45]Exercise 1 [00:20.72]Listen and complete the sentences. [00:26.36]A Can I have a reward Mum? [00:32.21]B This ice cream is my reward. [00:38.24]C Did you clean the floor? [00:43.39]D I helped Mum. [00:47
新标准小学英语第七册（三年级起点）
25 Years Later: Biosphere 2 Lives On An unusual scientific experiment ended 25 years ago when eight people walked out of a miniature Earth called Biosphere 2. Biosphere 2 is a collection of large, connected buildings in the American state of Arizona.
2018年VOA慢速英语(十)月
[00:00.00]Activity book Module 7 [00:08.10]Unit 3 [00:11.36]Activity 1 [00:14.81]Listen and draw a happy face or a sad face. [00:22.36]I like monkeys. [00:25.99]I don't like snakes. [00:31.16]I don't like lizards. [00:36.73]I like lions. [00:42.68]I
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The planet also began releasing oxygen, thanks to an ancient adoption of photosynthesis. A very ancestral primitive plant cell either engulfed or tried to digest or surrounded a cyanobaterium and instead of digesting it, it actually became an organ w
探索与发现2014年
Head to the mountains, and if the steep trails don't slow you down, the thin air will. There's less oxygen up thereso strenuous activity can leave you dizzy, out of breathor worse. But even though you're beat, biochemical processes are already busy a
2017年Scientific American(二)月
Although our cell was large, we obviously had used up most of the oxygen it contained. 虽然牢房还算宽大，但很明白，我们已经消耗掉了里面大部分氧气。 In essence, over an hour's time a single human being consumes all the ox
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Science and technology 科学技术 Marine biology 海洋生物学 Finding Nemo's role 尼莫的新角色 Clownfish help their anemones breathe 小丑鱼助力海葵呼吸 IT IS one of the best-known relationships in nature: the anemone provides a te
经济学人科技系列
Voice 1 Welcome to Spotlight. Im Adam Navis. Voice 2 And Im Robin Basselin. Spotlight uses a special English method of broadcasting. It is easier for people to understand, no matter where in the world they live. Voice 1 Eric was only sixteen years ol
环球英语 Spotlight
台湾籍旅美老师今天交给我们的句子是： Let's look at the characteristics that make an animal a fish. Fish live in the water, and they can breathe underwater. They use gills, not lungs, to get oxygen from the water around them. 我们来
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