题干

在近地面,大气的对流运动正确的是(    )

A:①②

B:③④

C:①④

D:②③

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D

同类题3

阅读理解

    For years I wanted a flower garden. But then we had Matthew. And Marvin. And the twins, Alisa and Alan. And then Helen. I was too busy raising them to grow a garden.

    Money was limited, as well as time. Often when my children were little, one of them would want something that cost too much, and I’d have to say, “Do you see a money tree outside? Money doesn’t grow on trees, you know.”

Finally, all five got through high school and college and were off on their own. I started thinking again about having a garden. I wasn’t sure, though, I mean, gardens do cost money.

    Then, one spring morning, on Mother’s Day, I was working in my kitchen. Suddenly, I realized that cars were tooting their horns as they drove by. I looked out of the window and there was a new tree, planted right in my yard. I thought it must be a weeping willow, because I saw things blowing around on all its branches.

    There was a money tree in my yard !It was true! There were dollar bills, one hundred of them, taped all over that tree. There was also a note attached: “IOU eight hours of digging time. Love. Marvin.”

    Marvin kept his promise, too. He dug up a nice ten-by-fifteen foot bed for me. And my other children bought me tools, ornaments, a trellis, a sunflower stepping stone and gardening books.

    That was three years ago. My garden’s now very pretty, just like I wanted. When I go out and weed or tend my flowers, I don’t seem to miss my children as much as I once did. It feels like they are right there with me. I think about what my children did for me, and I get tears in my eyes every time.

    I’m still not sure that money grows on trees. But I know love does!

同类题5

阅读下文,完成下列各题。

幸福的底线

陈鲁民

       ①俄国作家契诃夫说过:“如果你手上扎了一根刺,那你应当高兴才对,幸亏不是扎在眼睛里。”原以为这只是一种幽默的调侃戏谑,后来才发现,其实这也是一种达观的生活态度和人生智慧。

       ②一次,曾任美国总统的富兰克林•罗斯福家中失窃,损失惨重。朋友写信安慰他,罗斯福回信说:“亲爱的朋友,谢谢你的安慰,我现在一切都好,也依然幸福。感谢上帝。因为:第一,贼偷去的是我的东西,而没有伤害我的生命;第二,贼只偷去我部分东西,而不是全部;第三,最值得庆幸的是,做贼的是他,而不是我。”

       ③作家史铁生曾写道:“生病的经验是一步步懂得满足。发烧了,才知道不发烧的日子多么清爽。咳嗽了,才体会不咳嗽的嗓子多么安详。终于醒悟:其实每时每刻我们都是幸运的,任何灾难前面都可能再加上一个‘更’字。”

       ④他们实际上都是在为幸福画底线,每个人的具体情况不同,底线也就各有不同。幸福其实就是一种感觉,一个总是觉得很痛苦的人,往往就是把幸福的底线划得太高的人,期望值过高,欲望太大,结果与现实产生较大差距,于是痛苦就降临了。譬如说,一个把幸福底线划在得诺贝尔奖上的作家,志向固然远大可敬,但他这一辈子都很难有幸福感,因为这种机会太渺茫了;而一个经常发表小豆腐块文章的业余作家,却常常志得意满,感觉良好,因为他的底线是:文章能发表就是幸福,不拘长短。一个把幸福底线画在富可敌国上的大款,很难心想事成,自然也就无法快乐,哪怕他已经富甲一方;反倒不如那些出大力挣小钱的民工心情愉快,了无挂碍。所以,腰缠万贯的富翁未必就比家境小康的农夫幸福,身居高位的显贵不见得就比街头的小摊贩幸福,学富五车的大学教授不一定就比幼儿园阿姨幸福。归根结底,就是因为他们幸福的底线不同,一个画得太高,很难实现,一个画得较低,很容易达到。

       ⑤总之,把幸福底线画得低一点,稍许努力便可实现,幸福就在身旁。

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