单项选择题
1、 下列各组城市中多雨期在同一时期的是（　　）
A．加尔各答、休斯敦、开普敦
B．悉尼、巴西利亚、圣地亚哥(智利)
C．伦敦、阿尔及尔、圣弗朗西斯科
D．北京、乌兰巴托、洛杉矶


2、图6-4中四个城市正确排序是（　　）

A．包头、重庆、武汉、太原
B．包头、武汉、太原、重庆
C．重庆、武汉、包头、太原
D．武汉、包头、重庆、太原


3、 近年来北京市场上出现了品种繁多的热带花卉，这是因为（　　）
①北京自然条件的改变②北京市场需求的变化
③税收政策的变化④交通和冷藏条件的改变
A．①②
B．②④
C．③④
D．②③


4、
下列各句中加点的成语使用不正确的一项是（　　）
A．这位负责人说，中学生校服的价格比较稳定，不会因为物价的上涨而“水涨船高”。
B．大家赞扬这个方案犹如抱薪救火，一定会把这次改革的“三把火”烧得更加旺盛。
C．海洋污染不像陆地环境污染那样触目惊心，公众了解信息的途径也非常有限。
D．绿色植物摆放在室内，不但赏心悦目，还可以起到美化环境、净化空气的功效。


5、设空间向量a=(1，1，-4)，b=(1，-2，2)，则a与b的夹角(a，b)=



6、 下列给出的四个数：①sin 200°，②COS(-50°)，③tan 100°，④cot(-100°)，其中值为正数的是
A．①和③
B．②和④
C．①和④
D．②和③


7、通读下面的短文，回答题。
Mobile phones are everywhere. It seems that no one can ____21____ without one. Mobile phones are a great way to stay____ 22____ with friends and family.____23____ it is important to remember that there are certain ____24____ when you should not be using your phone, the most important of these being during____ 25____.
There is no reason why you should feel the need to have your mobile phone during class. Aren't you at school to ____26____ ? If you are in class,you should not be ____27____ your friends text messages or taking phone calls.
In America students would never be____ 28____ to use their mobile phones during class. If you were to send or receive a text message you would probably be kicked out of class. It is OK to have your mobile phone with you, you just need to remember to turn it ____29____. It is very disturbing to hear a lot of tones and ringing during class.
As a teacher in China,I have to deal with students using mobile phones everyday. I have told my class to turn off their phones,____30____ many students do not listen. The desire to be connected all the time seems to be ____31____ than the desire to learn.
It's easy to understand why it is so tempting(诱惑人的)to have your phone on during class. It seems so ____32____ to just send a short text message; it' s not hurting anyone,is it? But you may actually be hurting yourself when you do this. Sending a text message also ____33____ your attention away from what's ____34____ in class,you may miss ____35 ____important. The next time you think about sending a message in class you should think again.
________
A．survive
B．act
C．study
D．peak


填空题
8、


简答题
9、 阅读图文资料，完成下列要求。
北京时间2012年6月16日18时56分，执行我国首次载人交会对接任务的神舟九号飞船，在酒泉卫星发射中心(见图8)发射升空后准确进入预定轨道，顺利将3名航天员送上太空。
(1)酒泉市位于________(省级行政区)，经过该市的铁路干线是________铁路。
(2)酒泉卫星发射中心位于________(省级行政区)的西部，该地有利于航天发射的良好自然环境条件是________(选填符合题意的两个选项的序号)。
①地势平坦、地面开阔②海拔高、光照强
③云量小、晴天多④草场广布、植被覆盖度高


10、
(Ⅰ)求sin A的值；
(Ⅱ)求AC．

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