题干

先读一读下面的数,再填到适当的圈里.(按题中数的顺序填)

- 6   + 15   - 32   47   - 105    + 120   - 40
正数:

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负数:

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上一题 下一题 0.0难度 选择题 更新时间:2019-07-14 07:53:55

答案(点此获取答案解析)

+15,47,+120,-6,-32,-105,-40

同类题3

    In less than two months, Junior 3 students around the country will take the senior high school entrance (入学) exam. They are studying hard for this big challenge. Do they have time to do something in memory of their middle school years? Many do.
    Leng Jingze, 15, from Tianjin said that in her class students are already writing goodbye messages for each other. "Even the head teacher has a plan," said Leng. "She plans to put all our class photos and the Chinese compositions we have written onto a CD and give each student one," said Leng. "She will also write something for each student."
    Wang Zeyu, 16, in Changchun, Jilin said his classmates are making "lucky stars" as graduation gifts. They are making the cheerful stars from colored paper. "Before making a lucky star, you write some words for the person on the paper," said Wang. "He or she can read the words later." Who does Wang want to make a lucky star for? He said he wanted to make one for his head teacher. "I'll write: Dear teacher, you always look so serious," said Wang. "But we know you have a warm heart. Smile more!"
    In Xiao Xia's school in Beijing, each Junior 3 student will get a yearbook (毕业年鉴) , in which the graduating classes will put their photos and self-introductions. "Most classes have written an article as the self-introduction," said Xiao, 15. "We have written a poem in the ancient style!" The poem records the big events of the class’s history and is in the shape of the number 9. "Nine is our class number," said Xiao, who felt very proud of the idea. "Our class may be not the one with the best school grade but it must be the most creative one," said Xiao. "I feel lucky to study in such a class!"

同类题5

阅读下文,完成下列各题。

两角钱

肖复兴

    有时只是举手之劳,就能帮助别人,但我们对好多举手之劳的事情却总是熟视无睹,而不愿意伸出手来。

    那天下午,我去邮局寄信,人很多,大多是在附近工地干活的民工,才想到是他们发工资的日子,在往远在千里之外的家里寄钱。

    我寄了一摞子信件,最后算邮费,掏光了衣袋里所有的零钱,还差两角钱。我只好掏出一张一百元的票子,请柜台里的女服务员找。她没有伸手接,望了望我,面色不大好看。为了两角钱要找一百元的零头,这确实够麻烦的,难怪她不大乐意。

    我下意识弯腰又翻裤兜的时候,和一个男孩子的目光相撞。他穿着一身尘土仆仆的工装,就站在我旁边的柜台的角上,个头才到我的肩膀,瘦小得像个豆芽菜。我发现他的眼光里流露着犹豫的眼神,抿着嘴,冲我似笑非笑的样子,有些怪怪的。而他的一只手揣在裤袋里,活塞一样来回动了几下,似掏未掏的样子,好像那里藏着刺猬一样什么扎手的东西。这更让我感到奇怪了。

    没有,裤袋也翻遍了,确实找不出两角钱。我只好把那张一百元的票子又递了上去,服务员还是没有接,说了句:你再找找,这才两角钱还没有呀。可我确实没有啊,我有些气,和她差点没吵起来。

    这时候,我的衣角被轻轻拉了一下,回头一看,是那个男孩子。我看见他的手从裤袋里掏了出来,手心里攥着两角钱:“我这里有两角钱。”说完这句外乡口音很重的话,他羞涩地脸红了。原来刚才他一直想帮助我,只是有些犹豫,是怕我拒绝,还是怕两角钱有些太不值得?我接过钱,有些皱巴巴的,还带有他手心的温热,虽然只有两角钱,我还是谢了他。他微微地一笑,只是脸更有些发红了,真是一个可爱的孩子。

    寄完信,我去附近的超市买东西,破开了那一百元的票子,有了足够的零钱。我又回到邮局里,不过,那时已是落日的黄昏,不知那个孩手还在不在?我想如果那个孩子还在,应该把钱还给他。

    他还真的在那里,还站在柜台的角上,那些民工还没有汇完钱,他是在等着大人们一起回去。我向他走了过去,他看见了我,冲我笑了笑,因为有了那两角钱,我们成了熟人,他的笑容让我感到一种天真的亲切,很干净透明的那种感觉。

    走到他的身边,我打消了还那两角钱的念头。我不知道这样做对不对,但看到他那样的笑,总觉得他是在为自己做了一件帮助人的好事,才会这样的开心。能够帮助人,而且是举手之劳的事情,尤其是帮助了一个看起来比自己大许多的大人,心里总会产生一种美好的感觉吧。我当时就这样想,干嘛要打破孩子这样美好的感觉呢?一句谢谢,比归还两角钱,也许,更重要吧?我轻轻地抚摸了一下他的头,问了问:“还没有走呀?”然后,我再次郑重地向他说了声:“谢谢你啊!”他的脸上再次绽放出笑容。

    以后,我多次去过那家邮局,再也没有见过那个孩子,但我怎么也忘不了他。他让我时时提醒自己,面对一些举手之劳的事情,能够伸出手来去帮助他人,一定要伸出手来。

(选自《北京晚报》,有删改)