阅读下面这首唐诗，完成各题。

使青夷军入居庸三首^①（其三）

高适

登顿^②驱征骑，栖迟愧宝刀。远行今若此，微禄果徒劳。

绝坂水连下，群峰云共高。自堪成白首，何事一青袍？

[注]①此诗歌是四十七岁的高适送兵往“青夷军”，归途入居庸关时所作。他曾到边塞寻求避身之路，但未成功。青夷军，唐驻军名称。②登顿：上上下下，翻山越岭。

阅读下面材料，在空白处填入适当的内容 （不多于3个单词）或括号内单词的正确形式。

    Singles' Day falls on November 11th every year in China, is recognized as a day for people who have no girlfriend or boyfriend. Couples and lovers have Valentine's Day in (celebrate) of their love, but how about the singles? There must be a day they can celebrate even without a partner. That's people created Singles' Day.

    On Singles' Day many singles choose to say goodbye to their single lives, (attend) blind date（相亲） parties, and some people even decide to get (marry) to strangers. this day has recently become more of a time for shopping, because many shops online will give customers great discount (promote) their goods.

    More and more people are (will) to shop online to get what they want, and I am one of them. I just can't help buying things I need them or not. (honest) speaking, some of the things that I bought have been put aside forever in my closet.

设N_A为阿伏加罗常数的值，下列说法正确的是（   ）

下列表示不正确的是（   ）

阅读下文，完成各题。

村边的野地

张蛰

①我喜欢泡在村东的野地里，有时一群人，有时就我一个。野地很大，杂草、灌木丛生，那些粗细高矮歪直不同的杂树聚在一起，气象万千。在它的西南方向，废黄河一股水流蜿蜒而来，又在它东边很远的地方轻轻滑过朝东北方向平缓流去，河面时宽时窄，水量丰沛，水草丰满。那里有视野更为开阔的田地，村庄都被零星甩在某个角落里，我们叫它漫河滩。

②野地里，小路纵横交错，说明很多人来过且又走路的习惯不同，但真正泡在这里，一天到晚又见不到一个人影。除了人，村里的狗也来，我在野地里碰到狗的时候比人多，狗来这里东嗅西嗅，有时会对一只野鸡狂追，但从来不会成功，对一闪而过的野兔子，狗却只当没看见。狗跑野地里来干什么？

③其实人来似乎也没什么目的性，我们一群孩子泡在野地里，除了玩爬树捉迷藏，有时会了结一些江湖恩怨，有时会商量到哪块大田地偷生产队的东西，有时会满地里寻找兔子窝和老鼠洞。这些事，在其他地方一样可做，但我们却莫名其妙地跑到野地里来了。了结江湖恩怨，被揍得鼻青脸肿的倒霉蛋，出了野地会自觉说成是自己爬树掉下来磕的，不仅得不到父母的半点同情，还会被他们咬牙切齿地痛骂：咋不摔死你哩，你就野吧！上野地来，就是为了给挨揍找个好借口吗？在野地里商量偷生产队的东西，偷来再跑到野地里分赃，在哪里不能商量不能分呢？我们习惯性地选择了野地。还有秋天，我们在野地里从老鼠洞中挖出的黄豆，每个人脱下裤子装都装不完，但在大田里同样如此，我们为何喜欢来到野地里找？为什么？

④更多时候，我们在野地里无事可干，像狗一样到处闻闻嗅嗅，无目的地到处走动，或是忽然卧倒在杂草丛里看一尘不染的蓝天。不知是谁最先想起来的爬树，先是爬到树上捉迷藏，后来我们爬到树上去发呆，每个人都茫然地抱着树干坐在树杈上，猴子一样东张西望或什么也不望。有一回田鸭子兴奋地发现远处走来的是自己的爹，立时扯起肚皮拼命嚎叫，但很快发现努力没有意义，嚎叫声刚出嘴就被风收拾了。后来我们越爬越高，但能爬到树梢的只有宁五，他能爬到十几米高的地方，把自己挂在树枝上被风摆来荡去地像个驴屎蛋。

⑤感觉自己长大后，我更喜欢一个人呆在野地里，一个人呆着，能听到树上的鸟叫，再多的鸟同时叫也能听得出不同。我能听出哪只鸟的叫充满饥渴，哪只鸟的叫充满快乐。我还能听得出鸟对话与鸟自言自语的不同，清晨鸟叫得清脆，黄昏鸟叫得兴奋。有时候，一朵云都从视野里消失了，一只鸟的叫声却没停息。我一个人爬到树上眺望的时候，总觉得东边的漫河滩虽然看起来阔大，但实际上很小。漫河滩的尽头是什么呢？我会问自己。我爬树，爬得越高，觉得天空越远。一个人既远离了地面又远离着天空时是惶急的，有无法自信的恐惧。

⑥受了委屈，不高兴，觉得无聊，不知道到哪儿去，我溜溜达达就到了野地里。我喜欢一个人跑到野地里听动静，露水的叭嗒声，野鸡踩在草丛和落叶上的脚步声，兔子啃啮青草的窸窸窣窣声，鸟起飞时拍打翅膀的呼喇声，都能让我平复不安。许多少年才有的烦恼，都是野地里的风抹平的。我用一根青草去抽打另一丛青草时，痛苦就消失了。我夸张地躺在草丛里，正莫名苦恼地睁大眼睛，一群人字形的大雁忽然此起彼伏地叫着从野地上方飞过，立马一身轻松。

⑦我们的少年时代就像被大人遗忘了一样，除了一口吃喝和衣不遮体的穿戴，其他的一切交给了我们自己。我们满世界游荡，见风而长。宁五学会了生吞鸟蛋，拴柱学会了剥刺猬，我学会了抓兔子……我们大呼小叫地在野地里跑过，在树上闲荡或是发呆，时光从琐碎的落叶、干草尖慢慢流走后，我们的小胳膊小腿也在鸟鸣与露水里悄然拔节。这个过程里所有来自内心的悸动，最终帮助我们解决的，都是村边的野地。野地收容了我们所有的秘密，安抚了我们最初对世界的恐惧，它用自己的有声世界和无声言语悄悄地照亮了一群少年幽暗的心门。不然，何以解释我们在那个年代的天真烂漫，何以解释我们对人世葆有的这份善良？

⑧野地是伟大的。

⑨野地的伟大我在多年后认识的更仔细，它天然具有的安抚和疗伤功能，它天生就有的启迪和疗伤功能，对我的少年时代是多么重要。我在自己的少年时代虽然缺吃少穿，却有幸拥有一片荒芜的野地，在无意间接受了它最完美的自然启蒙教育，这是今天生活在中国东部发达地区的孩子再也难以享受到的自然待遇。今天，还有多少少年能在自家门外拥有一片自在的野地呢？

⑩因为工作关的关系，我越来越深刻地意识到远离自然的少年是多么脆弱，这些缺失了身处自然中成长机会的儿童，体格与性格中普遍缺乏一种东西，例如很少父母意识到孩子注意力难以集中的症结与孩子难以接触真正的自然有关。更大的问题是，我们很少关注这个问题对未来意味着什么。

⑪在这个冬日，在灯下，我似乎又听到冬天的风从野地里呼啸而过的声音。雪厚厚地覆盖了整个漫河滩，河水停止流动，野地一片寂静，那些巨大的无叶树冠在风里晃动，正有雪被风雾一样地扬起，鸟都躲在了村庄里，兔子都在了雪下的干草窝里。我驻足而立，小手冻得老高，脸蛋赤红发黑，正看一群同伴在风里向野地里跑过去。野地更野。

同温同压下，相同体积的O₂和O₃具有相同的（      ）

If ________ for an explanation for an advanced camera, I would certainly find it difficult.

同温同压下的不同气体其体积可能不相同，其主要原因是（　　）

These are kids to computer games.

—Why did he say sorry to you just now?

—Because he (撞上)me.

阅读理解

    The Canadian red and white maple leaf (枫叶) flag is officially called the National Flag of Canada. The Canadian flag shows a stylized red maple leaf with 11 points on a white background, with red borders down each side. The Canadian flag is twice as long as it is wide. The white square containing the red maple leaf is the same width as the flag.

    The red and the white used in the National Flag of Canada were proclaimed the official colors of Canada in 1921 by King George Ⅴ. Although the maple leaf did not have its official status as a symbol of Canada until the announcement (宣告) of the national flag in 1965, it had historically been used as a Canadian symbol, and was used in 1860 in decorations for the visit of the Prince of Wales to Canada. The 11 points on the maple leaf have no special significance.

    In the early days，the Royal Union Flag，or the Union Jack, was still flown in British North America. In 1925 and again in 1946, the Canadian Prime Minister Mackenzie King tried to get a national flag of Canada adopted, but failed. In 1964，Prime Minister Lester Pearson appointed a 15-member, all-party committee to come up with a design for a new flag. The committee was given six weeks to complete its task.

    The committee studied 2,000 submitted(提交的) designs as well as 3,900 that had been gathered as a result of the 1946 committee's study. Those designs with a chance of being accepted were given to the full committee for further study.

    The suggestion of a red and white single maple leaf design for the Canadian flag came from George Stanley, a professor at the Royal Military College. After a heated discussion, they finally decided on his suggestion.

设N_A为阿伏加德罗常数的值，下列有关说法正确的是（ ）

When the cruel man (统治)the town, people were living a poor life. They seldom (存储)some money in the bank, for they couldn't (积累)enough money. Most men were carrying a heavy (重担)when they supported the whole family. Some were often in (破旧衣服)and others starved. Therefore, some of the houses were (空置的).

阅读理解

    I've never posted a story before. However, upon graduating from UC Berkeley, with as much financial support as my family could muster(聚集), I now feel the need to thank my sister Mollie.

    Mollie started out at UC Santa Cruz two years ago, when I was already a junior at Berkeley, at a time when my family could no longer afford to support two college students.

    We both started working to pay for our housing while our parents were still paying our tuition. Then we took out loans for tuition too.

    After one year of college, my sister moved home to San Francisco and took classes at SF City College instead and started working full-time. She did this by choice and let our whole family think that she wanted to move home anyway, and that it was for her as much as for my parents' financial situation.

    Over the past year, I continued to receive any support that my parents could give.

    At my graduation two weeks ago, I commented on the fact that my sister was working full-time as a waitress and asked if she was going to use the money to travel. She said, "No, I'm saving to go back to UC Santa Cruz."

    This probably sounds crazy, but I had completely forgotten that she was saving up for her own college education, and making a sacrifice(牺牲) so that I could finish the last year of mine.

    I forgot because she never complained and actually has made a less than perfect situation enjoyable for herself. Mollie has no idea how much I respect her for this quiet generosity, and for her ability to turn a negative experience into a positive one.

    So…I guess I'll tell her!

下列物质中，与0.3 mol H₂O含有相同氢原子数的物质是（   ）

同温同压下两个容积相等的贮气瓶，一个装有C₂H₄ ， 另一个装有C₂H₂和C₂H₆的混合气体，两瓶内的气体一定具有相同的（   ）

阅读下面这首唐诗，完成后面题目。

题桃树①

杜甫

小径升堂旧不斜，五株桃树亦从遮。

高秋总馈贫人食，来岁还舒满眼花。

帘户每宜通乳燕，儿童莫信②打慈鸦。

寡妻群盗非今日，天下车书正一家③。

【注释】此诗作于杜甫自阆州归成都草堂时。安史之乱中，诗人流落四川，作此诗时，安史之乱初平，蜀乱已平。②信：任意。③车书一家：谓天下一统。

设N_A为阿伏加德罗常数的值，下列说法中正确的是(   )

用N_A代表阿伏加德罗常数的值，下列说法正确的是（   ）

臭氧层是地球生命的保护神，臭氧比氧气具有更强的氧化性．实验室可将氧气通过高压放电管来制取臭氧：

3O₂ 2O₃ ．