题目内容

【题目】在飞机飞行时,飞行方向是用飞行路线与实际的南或北方向线之间的夹角大小来表示的,如图,用AN(南北线)与飞行线之间顺时针方向夹角作为飞行方向角,从A到B的飞行方向角为35°,从A到C的飞行方向角为60°,从A到D的飞行方向角为145°,试求AB与AC之间夹角为多少度?AD与AC之间夹角为多少度?并画出从A飞出且方向角为105°的飞行线.

【答案】答案见解析.

【解析】本题考查的是方位角

阅读题目条件，明确飞机飞行角的概念，找到南北线与飞行线之间顺时针方向夹角，计算其角度解答．

由题意可知∠NAB=35°，∠NAC=60°，∠NAD=145°．

故AB与AC之间夹角为∠NAC-∠NAB=60°-35°=25°，

AD与AC之间夹角为∠NAD-∠NAC=145°-60°=85°．

思路拓展：此题是一道材料分析题，解答时要认真阅读，明确题目条件，特别是题目中的新概念，依据新概念解答．

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【题目】 Do you know what makes lightning(闪电)? Why does lightning strike(击打)?

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【2】What does the underlined word “survived” mean in Chinese?

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【题目】 Lonnie Johnson always loved taking things apart(分开). He sometimes put them back together. Other【1】(time) he made new things from different parts. He learned h【2】 to use tools from his dad.

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【题目】 Chinese buyers used to prize foreign brands, thinking that products made by American or European companies are of higher quality(质量) than Chinese ones. Increasingly, that's no longer the case.

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【题目】现代文阅读（本题满分15分）

烽火台的诉说

①人类为了生存下去，就需要共同抵御洪水、野兽等灾害和天敌，这时就少不了彼此沟通和协作。在远古时期，由于没有文字，人们之间的信息交流主要是靠声音和肢体语言；在我国的殷商时期，出现了“击鼓传声”的通信方式；后来人们开始兴建烽火台，出现了用火光和烟雾传递信息的办法。

②今天，人们在游览雄伟壮观的万里长城时，依然可以看到修建在制高点上、形似碉堡的方形建筑，那就是烽火台。不过，烽火台的历史要比长城还要久远。

③一般来说，我国历史上的烽火台是在西周时期出现的。据史料记载，在周朝时，中央与各诸侯国都在边疆或通往边疆的道路上每隔一定距离就修筑一座烽火台。烽火台上堆满了柴草，哨兵一旦发现有外族入侵，便点燃柴草以烽火报警。各路诸侯见到后，就会派兵前来接应，同御外敌。

④说到这里，很多人都会想起《东周列国志》中一个很有名的故事——烽火戏诸侯。故事片说的是荒淫无度的周幽王自从得到美人褒姒之后，便整天想尽办法来博得褒姒开心一笑，可美人一直无动于 （zhōng）。有个近臣献计说，当年先王为了防备西戎入侵，在骊山之巅建有20余处烽火台，每当有贼寇侵犯时，烽火台便点火示警，火光、烟雾直冲霄汉，甚为壮观。附近诸侯见此情景，无不发兵相救。这些年为，天下太平，已多年不见烽火点燃，如果君王偕王后同游骊山，夜举烽火，这时诸侯援兵必至，至而无寇，王后必笑无疑。昏庸的幽王居然听从了这位近臣的馊主意，其下场我们也都知道了，周幽王命丧西戎刀下，褒姒也在劫难逃。西周从此走向了灭亡之路。

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⑥在古代，烽火总是与战争联系在一起，烽火出现，便意味着战争来临。南朝吴均有诗句“羽檄起边庭，烽火乱如萤”，大意是说军情文书从边疆传来，报警的烽火像萤火虫一样乱飞；唐代大诗人杜甫的《春望》中也有“烽火连三月，家书抵万金”的名句。这些都是当时紧张气氛的生动写照。

⑦之所以在战争中使用烽火，是因为它传递信息的速度很快。汉武帝时，大将卫青和霍去病率大军出征匈奴时，就以烽火作为进军信号。据《汉书》记载，仅一天时间，烽火信号便可以从当时的河西（今甘肃省）传到辽东，途经千余里。

⑧用烽火报警的通信方式一直延续了多个朝代，直至清朝末年。随着电报、电话等现代通信方式的出现，古老的烽火通信终于销声匿迹，退出了历史舞台。（取材于陈芳烈的作品）
【1】根据拼音，在田字格中正确、规范、美观地填写汉字，并解释这个词语。（2分）

无动于zhōng

释义：
【2】结合全文，简要说说我国“烽火通信”方式从出现到消亡的过程。（3分）
【3】第⑤段和第⑦段中两个加点的词语分别体现出说明文语言的什么特点？请加以分析。（4分）

⑴悄悄告诉：

⑵据《汉书》记载：
【4】第⑥段和第⑦段的顺序能否调换？为什么？请结合其内容加以分析。（3分）
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【1】Tony never ______much money when he goes out.

【2】The girl often talks with her good friends ______telephone.

【3】How much is your new ______?

【4】Mum, I ______ some money to buy a new book.

【5】Little Tom often _____ his mother some strange questions.

【6】People won’t buy any cars any ______ in the future.

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【8】The weather will ______ a lot in 100 years’ time.

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【10】______ Jack is in the library. But I am not sure.

【题目】A

June

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A. Milk. B. Sandwiches. C. Bananas. D. Banana milk shake.

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A. It looks like your home.

B. You can sleep there after dinner.

C. You can buy it as a second home.

D. You can relax and enjoy the food just like at home.

【3】 How many hours does Bob usually work every day?

A. 9 hours. B. 10 hours. C. 12 hours. D. 11 hours.

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A. $30. B. $6. C. $15. D. $24.

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A. June 3rd and 4th. B. June 4th and 5th.

C. June 18th and 19th. D. June 11th and 12th.

【题目】【四川省成都市2015年中考英语试题】书面表达（计 15 分）

请根据以下交通事故因素（factors）统计图表，以“Major causes of traffic accidents” 为题，用英语写一篇简短的分析报告，向学校英语报投 稿。

注意：

1. 报告需逐条陈述下面 pie chart 和 bar chart (柱状图) 中呈现的主 要内容。（至少 5 点）

2. 提出你对交通安全总的看法。（至少 2 点）

3. 词数：100 词左右，所给标题不计入总词数。

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