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如图为实验室制备蒸馏水的装置示意图,根据图示回答下列问题.

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    Imagine being a crew member, hundreds of years ago, sailing in southern waters. Your captain is searching for food while exploring unfamiliar waters. Your job is to watch the sea off the ship's side for ice. The wind is cold on your face. Alongside the ship, a fish darts past. Another slows to a stop and raises its head above the water to look at you. How could a fish do that?

    Did the sailors see fish with feathers or swimming birds? Today, we know that the sailors saw birds that developed the ability to swim. Their wings became flippers, and they could “fly” through the water with amazing speed.

    There are many types of penguins. Only two kinds raise their young on the continent of Antarctic. Adelie penguins grow up to 29 inches tall and have a white ring around each eye. Emperor penguins have yellow orange color near their necks. Standing about 35 inches tall, they are the tallest penguins living today.

    Emperor penguins have nests on top of their feet. Father Emperor penguins keep the egg on top of their feet for more than two months, until the egg is ready to hatch. The mother penguin goes out for food during that time. Imagine holding an egg on your feet for two months until someone returns with food!

    Male and female penguins are both good parents. Once the chicks hatch, both parents travel long distances to find food for them in the sea. It may be days before the parents return and the chicks eat again. When they return with food, the fun really begins. Chicks chase their parents, begging for food. Penguin chicks eat huge amounts at one time.

    Eventually, the adult penguins stop feeding the chicks. This is nature's way of forcing children to grow up. When the penguin chicks are hungry enough, they find their way to the sea. Without any swimming lessons, they make their way into the icy waters and swim as only penguins do.

同类题3

阅读下面的文章,完成下列小题。

那些疼我的人

丁丽梅

    ①三月天,蜜蜂从土墙的洞里钻出来,嗡嗡闹着。柳树绿了,桃花开了,油菜花更是开得惊心动魄,铺展出一望无际的黄。20世纪70年代的乡下,这个时候,正是青黄不接。有什么可吃的呢?没有的。

    ②我去爬屋后的小木桥。小木桥搭在小河上方,桥下终年河水潺潺。湍急的水流,在幼小的我的眼里,很可怕,我害怕从桥缝里掉下去。那样的害怕,最终会被一种向往所抵消。爬过木桥,就可以去几里外的外婆家,外婆会给我一只煮鸡蛋,或是一捧炒蚕豆。这是极香的诱惑!

    ③我很幸运,每次都能安全地爬过木桥去。矮矮的外婆见到我,眼睛笑眯成一条缝。她手里正补着衣服,或是纳着鞋底,她会立即放下手里的活儿, 去灶边生火。一瓢清水倒进锅里,腾起一股热浪来,我知道,我可以有煮鸡蛋吃了。一脸威严的外公埋怨她:“那是换盐的鸡蛋啊,家里快没盐了。”外婆挡着,说:“小点儿声,别吓着孩子。”他们在屋里嘈嘈切切地吵。我不管那些的,有外婆护着,有香香的煮鸡蛋可以吃,便觉得自己是世上最幸福的孩子。现在想来,那时我真是不懂事,不知吃掉外婆家多少的盐,害得外婆一到饭时,便受到外公的责备。记忆里,也总是体弱,常生病。一病就是半个月。这时有两个女人围着我转,一个是祖母,一个是母亲。光线微弱的茅草房里,祖母的影,隐在半明半暗中,身上有种奇异的温暖。我躺在床上看她,她端一只水碗,放在门后,手里握几根筷子,蹲下身去,嘴里念叨着什么,一边叫着我的名字。“你们不要摸我家的梅呀,让她快快好起来,我给你们烧纸钱。”筷子终于在水碗里站立起来,祖母便长吁一口气,她的祷告灵验了。迷信的祖母,用她自认为可以为我消灾免难的站水碗的方法,一次次为我祷告。祷告完了,她的手,会抚过我的脸,沙子吹过的感觉。岁月锻造得她手的肌肤,很糙。却暖极。她问我:“乖乖,你的病就快好了,想吃什么?奶奶给你做。”那时摊一块摊饼,是最难得的美味,我每次都会提这个要求。祖母每次都会满足我,家里没摊摊饼的白面,她就去问邻居借。摊饼上好闻的葱花味,香了整幢房。以至于我觉得,生病不是苦,倒是一件十分幸福的事。

    ④我有过几次大难不死的经历。母亲说:“有一年,全村83个孩子都出天花了,你是最严重的一个,高烧昏迷,不省人事。医生说,没治了,让准备后事。我抱着你,七天七夜没合眼。你呀……”母亲没有继续这个“你呀”,她笑着说起另外的事,关心我现在是不是还常常熬夜。“不要熬夜呀,人吃不消的。你要好好的呀!”母亲这样说。我却在她那一句未完的“你呀”后面浮想联翩,想我是这么一个难缠难养的孩子,母亲的心,不知碎过多少回。大雪天,我又突然生病,母亲顶着风雪去找医生。医生来了,说,不行,得赶紧送街上的医院。街离村子有几十里路,父亲又不在家,风大雪大的,母亲却决定一个人用拖车拖我去医院。母亲就真的上路了,用被子把我里三层外三层地裹好。一路上,母亲不知跌了多少跟头,我却安然无恙。到了医院,医生看着雪人一样的母亲,感动了,立即给我检查,是急性肺炎,晚一会儿,就难治了。我的病好了,母亲的额上,却留着指头长的一道疤,像一条卧着的小蚕。我抚摸着母亲的那块疤,问母亲后不后悔生了我。母亲嗔怪地打掉我的手,说一句:“你呀……”

    ⑤结婚了,遇到的那个人,不是貌若潘安,才似柳永,却会在我生病的时候,守在身边,给我削梨子;会在我磕疼的时候,一边给我揉淤血的膝盖,一边嗔怪:“怎么这么不小心?”他会买我爱吃的鸡蛋卷回来,还有我喜欢的花花草草,摆一阳台,我还是不满足,说还要,他答应一声:“好。”有时我也会明知故问:“你宝贝我吗?”他笑着答:“我不宝贝你,还能宝贝谁呢?” 时光刹那停住,天荒地老。

    ⑥现在,我在织一件毛衣。入冬了,儿子的毛衣短了。我挑橘黄的颜色,选一种小熊猫的图案,这样织出来,一定非常漂亮,儿子穿上,会极帅气的。儿子在一边看着,问:“妈妈,是给我织的吗?”我答:“不给你织,给谁织呢?”“那么,妈妈,你是宝贝我的吗?”我答:“我不宝贝你,还能宝贝谁呢?”思绪就在那一刻拐了弯,生命中那些疼我的人,一一浮现出来。我痴痴地想,上帝送他们来,就是为了来疼我的,就像我疼我的儿子一样。世间的美好,原是这样的爱写成的。

    ⑦如今,我的外婆已去世了。值得安慰的是,她走时,我在她身边。她看着我,最后疼爱的光亮,像淡淡的紫薇花瓣落下,落在我的脸上,留在这个世上。