The m of the work has been finished.

已知变换 将平面上的点 ， 分别变换为点 ， ．设变换 对应的矩阵为 ．

下列三阶行列式可展开为 的是（    ）

根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。

    Many people think of guys as being carefree when it comes to their appearance. But in fact, a lot of guys spend plenty of time in front of the mirror. They care just as much as girls do about their body image.

    Body image is a person's opinions and feelings about his or her own body and physical appearance. You appreciate your body for its capabilities and accept its imperfections.

    Here are some ideas.

    Recognize your strengths. Different body types are good for different things. What does your body do well? Maybe your speed, strength, or coordination makes you better than others at a certain sport. That may be basketball, table tennis, mountain biking, dancing, or even running. Or perhaps you have non-sports skills, like drawing, painting, singing, playing a musical instrument, writing, or acting.

    Exercise regularly. Exercise can help you look well and feel good about yourself. Good physiques (体形) don't just happen. A healthy habit can be as simple as exercising 20 minutes to 1 hour three days a week. Working out can also lift your spirits.

    Respect your body! Practicing good habits regular showering; taking care of your teeth, hair, and skin; wearing clean clothes, and so on can help you build a positive body image.

    Your body is just one part of who you are. Your talent for comedy, a quick wit (智慧) and all the other things make you unique. So try not to let small imperfections take over.

A. Use this as an opportunity to discover what you're good at. B. Be yourself. C. Having a positive body image means feeling satisfied with the way you look. D. Just explore talents that you feel good about. E. They take hard work, regular workouts, and a healthy diet. F. The good news is that self-image and body image can be changed. G. So, what can you do to develop a positive body image?

下列化学用语书写正确的是（   ）

阅读理解

    When I was watching a sports event yesterday, I met with an amazing sight. It was not a gold medal, or a world record broken, but a show of pure courage and determination.

    The event was swimming. I watched a man dive off the blocks and knew right away that something was wrong. I'm not an expert swimmer, but I can tell a good dive from a poor one, and this was not exactly medal quality. When he resurfaced, it was evident that the man was not out for gold — his arms were waving in an attempt at freestyle.

    I heard the crowd begin to laugh at this poor man who was clearly having a hard time. Finally he made his turn to start back. It was pitiful. He made a few desperate strokes (划水) and you could tell he was worn out. But in those few awkward strokes, the crowd changed. No longer were they laughing, but beginning to cheer. Some even began to stand and yell things like, "Come on, you can do it!" He did. The crowd went wild.

    Just a short year ago, he had never even swum, let alone race. His country had been invited to take part in the event. Even though he recorded the slowest time, this man gave more heart than any of the other competitors—a man that gave his all, knowing that he had no chance but to compete because of the spirit of the games.

下列叙述正确的是（     ）

He refused to talk about family's (suffer) during the war.

某含氧有机物的相对分子质量为60，1mol该有机物完全燃烧，生成36gH₂O和44.8L CO₂（标准状况下）．

已知矩阵 ，圆 经过矩阵 对应的变换作用下得到圆 ： ，求圆 的方程.

函数 的最小正周期是．

我在街上毫无目的地闲逛，也没想什么特别的事情。

I was wandering aimlessly in the street, thinking about nothing .

阅读下面这首宋诗，完成下面小题

送王适徐州赴举

苏辙

送别江南春雨淫，北方谁是子知音。

性如白玉烧犹冷，文似朱弦叩愈深。

万里同舟宽老病，一杯分袂发悲吟。

明年榜上看名姓，杨柳春风正似今。

在标准状况下，将22.4L HCl完全溶于1L水中（水的密度近似为1g/mL），溶液的密度为ρ g/cm³ ， 溶液的体积为V mL，溶质的质量分数为w，溶质的物质的量浓度为c mol/L．下列叙述中正确的是（　　）

①w=×100%　②c=1mol•L^﹣1　③向上述溶液中再加入V mL水后，所得溶液的质量分数大于0.5w　④所得溶液中含有N_A个HCl分子．

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。

    Chuck Wall teaches management and human relations at Bakersfield College. He walked into class one day and told his students that their homework was to perform a simple and random act of kindness. Not (understand) the homework, the students didn't know what to do. Chuck didn't answer their questions. , he encouraged his students to work it out by themselves.

    One week later, the students entered the classroom and began sharing their stories (excited). One reported on helping a poor dog (abandon) by its owner. Another student told others about giving blankets away to the homeless. Gradually, more and more students developed the habit of doing such kind acts, from they benefited a lot.

    Since then, similar kind acts (perform) in schools around the world. Many schools organize a Random Acts of Kindness Week, around November 13^th, (celebrate) World Kindness Day. Some schools use each day of Random Acts of Kindness Week to perform a (differ) kind act, such making a new friend, helping someone, doing community service or raising money for a charity. In this way, students learn to consider other people and think about how small actions can make the world a (good) place.

在标准状况下，相同体积的下列气体所含物质的质量最小的是（   ）

阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    I'm on holiday here in Switzerland with my parents and I'm having Fantastic time. We're staying in a hotel near a lake and I can see snowy mountain  (peak) from my bedroom.

    I've never been to the mountains before and I love . It's also the first time I (stay) in a hotel. My father isn't very happy though. He (forbid) to smoke in the hotel so he has to go outside!

    We go mountain climbing with a guide. You don't have to go with a guide but it's ．(safe).

    Yesterday we went a boat trip around the lake. It suddenly started to rain heavily. It was fun but a bit (frighten).

    The best thing of all is the beautiful scenery. The worst is I can't go out at night. Not because my parents won't let me but because there's nowhere (go).

设N_A为阿伏加德罗常数的数值，下列各项叙述中正确的有（）

将15.1g某芳香族化合物样品置于氧气流中完全燃烧，测得有关数据如下（实验前系统内的空气已排除，各步均吸收完全）：

燃烧产物 增重8.1g 增重35.2g  氮气1.12L（标况）

已知该有机物相对分子质量为151，且为天然蛋白质水解产物。下列关于该有机物的说法正确的是（   ）

阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。

    Once, when I was a teenager, my father and I were standing in line to buy tickets for the circus. Finally, there was only one family between us and the ticket counter.

    This family made a big impression on me. There were eight children, all probably under the age of twelve. You could tell they didn't have a lot of money.

    Their clothes were not expensive, but they were clean. The children were well-behaved, all of them standing in line, two-by-two behind their parents, holding hands. They were excitedly talking about the clowns, elephants, and other acts they would see that night with their brothers or sisters in a low voice.

    One could sense they had never been to the circus before. It promised to be a highlight of their young lives. The father and mother were at the head of the pack, standing hand in hand.

    The ticket lady asked the father how many tickets he wanted. He proudly responded, "Please let me buy eight children's tickets and two adults' tickets so I can take my family to the circus."

    The ticket lady gave the price. The man's wife let go of his hand, her head dropped, and the man's lips (嘴唇) began to shake. The man leaned a little closer and asked, "How much did you say?"

    The ticket lady again gave the price. The man didn't have enough money.

    How was he supposed to turn and tell his eight children that he didn't have enough money to take them all to the circus?

    Actually we were not wealthy in any sense. So I understood how the kids would feel. I felt sorry for them.

注意:

1）所续写短文的词数应为150左右;

2）至少使用5个短文中标有下划线的关键词语;

3）续写部分分为两段,每段的开头语已为你写好;

4）续写完成后,请用下划线标出你所使用的关键词语。

Paragraph 1:

    Seeing what was going on, my dad put his hand in his pocket, pulled out a $20 bill and dropped it on the ground.  Paragraph 2:

    That day my father and I went back to our car and drove home without buying any tickets.