028 糖酵母气球

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It was Friday, and Bobby felt like he might explode

那天是星期五，鲍比感觉自己快要兴奋得爆炸了。

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He couldn't wait for the weekend

他等不及周末的到来。

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He was going to see a football game with his dad on Sunday!

周日他要和爸爸一起去看足球赛！

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" I brought my bottle,"

“我带了瓶子，”

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he said as he walked into Kids Central

他走进Kids Central时说。

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" Great," Miss Shelly said

“太好了，”雪莉老师说。

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" Then get ready to make a sugar and yeast balloon."

“那准备好做一个糖和酵母气球吧。”

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" Whatever that is, it sounds cool!" Bobby said

“不管那是什么，听起来很酷！”鲍比说。

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" You know sugar gives you energy, right?

“你知道糖能提供能量，对吧？

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We're going to give yeast some sugar," Miss Shelly said

我们要给酵母一些糖，”雪莉老师说。

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" What do you think will happen?

“你们觉得会发生什么？”

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Will the sugar and yeast blow up our balloons?"

糖和酵母会把我们的气球吹起来吗？”

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Miss Shelly blew air into a balloon

雪莉老师往一个气球里吹气。

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" Or not?" She let out all the air

“还是不会？”她放掉了所有的空气。

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" Yeast makes bread rise," Jason said

“酵母让面包膨胀起来，”杰森说。

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" So I think yes, it will make our balloons blow up."

“所以我认为会，它会让我们的气球吹起来。”

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" How can sugar and yeast blow up a balloon?" Bobby asked

“糖和酵母怎么能吹起气球呢？”鲍比问。

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He shook his head

他摇了摇头。

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" I don't think it will work."

“我觉得这不会管用。”

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" Let's try and find out," Miss Shelly said

“我们试试看吧，”雪莉老师说。

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" Drop one tablespoon of sugar into your bottle

“往你的瓶子里放一汤匙糖。

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I'll come around with warm water."

我会带着温水过来。”

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Bobby carefully spooned the sugar into his bottle

鲍比小心地用勺子把糖舀进瓶子里。

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He shot his arm up in the air

他猛地举起手。

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" I'm ready for water, Miss Shelly!"

“我准备好加水了，雪莉老师！”

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Miss Shelly poured warm water into his bottle

雪莉老师往他的瓶子里倒了温水。

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" Now shake!" she said

“现在摇一摇！” 她说。

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Bobby shook as hard as he could

鲍比用尽全力摇晃。

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" That's good enough, Bobby

“够了，鲍比。

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Next add the yeast

接下来加入酵母。”

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Then put the balloon on

然后把气球套上去。

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Gently shake it up!"

轻轻摇一摇！

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Bobby emptied the packet of yeast into the bottle

鲍比把一包酵母倒进瓶子。

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He put a blue balloon on the top of the bottle

他在瓶口套了一个蓝色的气球。

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Then he shook the bottle again, gently

然后他又轻轻地摇了摇瓶子。

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" Nothing's happening," he complained

“什么都没发生，”他抱怨道。

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" Be patient," Miss Shelly said

“耐心点，”雪莉老师说。

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" Let's go outside while we wait."

“我们一边等一边到外面去吧。”

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" Oh!" Izzie shrieked when they got back

他们回来时，伊兹尖叫起来：“哦！”

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" My balloon is getting bigger!"

“我的气球变大了！”

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Everyone ran to Izzie's bottle on the table

所有人都跑到桌子边去看伊兹的瓶子。

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Bobby dashed to his seat

鲍比冲到自己的座位前。

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" Mine's growing too!"

“我的也变大了！”

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" That is so weird,"

“这太奇怪了。”

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Jason said, examining his own balloon

杰森一边检查自己的气球一边说。

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" Who's blowing it up?" Nina asked

“是谁在吹气？”妮娜问。

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" How is it getting bigger?"

“它怎么会变大呢？”

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" The sugar and the yeast are doing it

“是糖和酵母在起作用。

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Yeast is actually alive, you see

酵母其实是活的，你们知道吧。

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But it's in a quiet, sleeping stage in the packet

但在包装袋里的时候，它处于一种安静的休眠状态。

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When mixed with water and sugar, it becomes active again," Miss Shelly explained

当它与水和糖混合时，它就又活跃起来了。”雪莉老师解释道。

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" When yeast eats sugar, it creates gas that fills the balloon

当酵母吃掉糖时，它会生成充满气球的气体。

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The balloon gets bigger to make room for the gas

气球变大，为气体腾出空间。

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Just like it gets bigger when we blow into it!

就像我们吹气时它变大一样！

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Does that make sense?" Miss Shelly asked

“这个理解吗？”雪莉老师问道。

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A tall man entered the gym

一个高个子男人走进了体育馆。

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" What's going on in here?" he asked

“这儿在干什么？”他问道。

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" Dad! Look at this!" Bobby shouted

“爸爸！看这个！”鲍比喊道。

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" We mixed yeast, sugar, and water in a bottle

“我们在瓶子里混合了酵母、糖和水。

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That created gas that blew up this balloon!"

那生成了气体，吹大了这个气球！”

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" That sounds interesting," Bobby's dad said

“听起来很有趣，”鲍比的爸爸说。

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" And in a few hours, you'll see what happens when the yeast runs out of sugar to eat," Miss Shelly said

“几个小时后，你们就会看到酵母吃光糖后会发生什么，”雪莉老师说。

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" What? You mean there's more?" Bobby asked

“什么？你是说还有后续？”鲍比问道。

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" Take your balloon home, and we'll watch it there," his dad said

“把你的气球带回家，我们在那儿观察它，”他的爸爸说。

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Bobby was thrilled

鲍比激动极了。

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He'd get to watch football and his balloon with his dad

他可以和爸爸一起看足球赛，还能观察气球。

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It was going to be a great weekend!

这将是个很棒的周末！