定义行列式运算：=a₁a₄﹣a₂a₃ ． 若将函数f（x）=的图象向左平移m（m＞0）个单位后，所得图象对应的函数为奇函数，则m的最小值是（　　）

Even before QE2 (Queen Elizabeth the Second), the Fed had $2.3 trillion worth of property on that list, two and a half times________ owned before the financial crisis.

Kate's friends were green with e when they saw her new dress.

在三个密闭容器中分别充入A、B、C三种气体，当它们的温度和密度都相同时，这三种气体的压强（p）从大到小的顺序为p（B）>p（A）>p（C），则A、B、C分别是（ ）

Lily's mobile phone was left in a taxi accidentally, never (see) again.

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。

    You want to be happy, who doesn't? However, whether you procrastinate(拖延), feed negative self-talk, or don't rest your mind, you lower your potential to create happiness.

Procrastination

    You aren't in deadly danger if you procrastinate, but your system doesn't always take this information on board. You still react as though you are anxious and produce stress chemicals.

    Your ability to see the big picture of life is reduced when you procrastinate. Therefore, you don't see as much joy.

Negative self-talk

    Taking notice of what goes on in your head and putting positive change in action makes negative self-talk useful. Nevertheless, most people don't recognize negative self-talk as a pointer; they feed it until it grows out of control.

    Your mind contains an incredible amount of information and is more powerful than any computer many times over. However, if you give it too many tasks, you shut out peace of mind.

    Thought-overload results in physical symptoms, like a racing heart and shortness of breath. Additionally, you might have sleeplessness, digestive problems and other symptoms of stress that reduce your happiness.

    If you want to increase the odds of being happy, don't procrastinate. Similarly, don't overload your mind, give it a rest and you will soon notice you are happier.

A. Not resting your mind.  B. Using your brain regularly.  C. It is a human weakness to put things off.  D. At the same time, don't feed negative self-talk.  E. Self-talk can tell you how healthy you are emotionally.  F. Additionally, as your system is nervous physically, your mind also closes off a little.  G. Thinking about many things at once leads to a feeling of anxiety.

两气体A和B的摩尔质量之比为3：1，则它们在同温、同压、同体积时的分子个数比应为（   ）

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。

    Have you ever felt a sudden feeling of joy because you heard a favorite song playing? Then you know that music can have a strong effect on your emotions. It can help get you out of a bad mood (心情) or stay in a good one, says Alicia Ann Clair, professor at the University of Kansas.

    To cheer up, listen to Latin music or anything with a strong beat or a fast speed. When you want to relax after a busy day, music with a slower speed can calm you down.     

    Listen to calming music before you start any stressful activities, advises Dr. Clair. "Once you' re in a good state of mind, it' s easier to keep it." You can lower stress at work with music, too, by playing relaxing tunes (曲调). "If you listen to them all day long, you' 11 stop noticing them," Dr. Clair explains. Then the music won't have any effect.

    ."To feel energetic, start with something relaxing, and then gradually increase the speed and beat," says Dr. Clair. For example, first play some nice slow love songs, and then listen to something more energetic. When you want to calm down after a busy week at work, just do the opposite.

A. Music can also help you relax and feel active. B. Try to take advantage of this power of music. C. But only play them when you really need them. D. Loud and fast music can fill you with energy. E. There are different kinds of music around the world. F. Put on your favorite song, but only if it is one that can lift your spirits. G. You can change your mood by changing from one kind of music to another.

阅读下面的文言文，完成下面小题。

周昌者，沛人也，其从兄曰周苛，秦时皆为泗水卒史。及高祖起沛，击破泗水守监，于是周昌自卒史从沛公。沛公以周昌为职志。从入关，破秦。沛公立为汉王，以周昌为中尉。

汉王四年，楚围汉王荥阳急，汉王遁岀，去，而使周苛守荥阳城。楚破荥阳城，欲令周苛将。苛骂曰：“若趣降汉王！不然，今为虏矣！”项羽怒，烹周苛。于是乃拜周昌为御史大夫。

昌为人强力敢直言自萧曹等皆卑下之昌尝燕时入奏事高帝方拥戚姬昌还走高帝逐得骑周昌项，问曰：“我何如主也？”昌仰曰：“陛下即桀、纣之主也。”于是上笑之，然尤惮周昌。及帝欲废太子，而立戚姬子如意为太子，大臣固争之，莫能得。而周昌廷争之强，上问其说，昌为人吃，又盛怒，曰：“臣口不能言，然臣期期①知其不可。陛下虽欲废太子，臣期……期……不奉诏。”上欣然而笑。既罢，吕后侧耳于东厢听，见周昌，为跪谢曰：“微君，太子几废。”是后，戚姬子如意为赵王，年十岁。居顷之，赵尧②侍高祖。高祖独心不乐，悲歌，群臣不知上之所以然。赵尧进问曰：“陛下所为不乐，非为赵王年少而戚夫人与吕后有隙邪？备万岁之后而赵王不能自全乎？”高祖曰：“然，吾私忧之，不知所出。”尧曰：“陛下独宜为赵王置贵强相，及吕后、太子、群臣素所敬惮乃可。”高祖曰：“然，吾念之欲如是，而群臣谁可者？”尧曰：“独昌可。”高祖曰：“善。”于是徙御史大夫周昌为赵相。高祖崩，吕太后使使召赵王，其相周昌令王称疾不行。使者三反，周昌固为不遣赵王。于是高后患之，乃使使召周昌。周昌至，谒高后，高后怒而骂周昌曰：“尔不知我之怨威氏乎？而不遣赵王，何？”昌既征，高后使使召赵王，赵王果来。至长安月余，饮药而死。周昌因谢病不朝见，三岁而死。

（选自《史记·张丞相列传第三十六》，有删节）

（注释）①期期：口吃结巴貌。②赵尧：当时担任符玺御史。

假如你是杨方,要竞选班长,请根据以下内容写一篇竞选演讲稿。

1）你认为自己具备什么条件可以胜任班长职务?

2）如果当选,你会为班级同学做些什么?

注意:1）词数80左右;

2）开头和结尾已给出,不计入总词数。

Hello, everybody!

    My name is Yang Fang. I'm glad to have this opportunity to tell you why you should vote for me as monitor.

 

    Thank you very much!

Hangzhou is a beautiful city and lives up to its(名声).

相同质量的O₂和O₃ ， 一定具有相同的（     ）

Children are tired of learning often because they are________to do better than they can, both at school and at home.

His order is that all of us (get) there before 5 o'clock.

假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有10处语言错误，每句中最多有两处。每处错误仅涉及一个单词的增加、删除或修改。

增加：在缺词处加一个漏字符号(∧)，并在其下面写出该加的词。

删除：把多余的词用斜线(\)划掉。

修改：在错的词下画一横线，并在该词下面写出修改后的词。

注意:1）每处错误及其修改均仅限一词;

2）只允许修改10处，多者(从第11处起)不计分。

    When an English traveller, who spent a few week in Sweden, was about to return to home, he found he had only enough money left to get a ticket to England. Since it was only two-day voyage, he believed he can get home without eating anything. He final bought a ticket with that little money and went to board the ship. He closed his ears to the sound of the lunch bell or refused to go to the place where people had his dinner when dinnertime came. Therefore, he couldn't stand this any longer and went to the dining hall, enjoy the last meal on the ship. He then said, "Waiter, brings me the bill." "Oh, meals are included in the ticket, "said the waiter.

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。

    We all believe we listen well and yet many times we feel others are not listening to us. However, listening goes in both directions—you may believe you are listening well, but how often have you completely forgotten what was said to you?

Make eye contact.

    when People talk, they put out visual clues that add to the conversation and meaning of their words.

Stop talking.

    You can't listen, talk and at the same time completely receive the meaning of the other person's words.

React without words.

    Let the other person know you are listening through physical reactions, such as head nods, smiles, frowns and eye movement.

Concentrate.

    Concentrate on what the other person is saying. Clear your mind of other thoughts and emotions and focus on the conversation at hand. Be in the moment of that conversation, and don't think about what you want to say back.

    Behave as an effective listener. The more you continue to behave as a listener, the more you will be an effective listener.

A. Don't break in. B. Act as a listener. C. How to say back is also important. D. Make eye contact with the person who is talking to you. E. There are a few ways to become a more effective listener. F. Wait your turn and take in what has been said to you before you make a reply. G. These may also help to let the speaker know whether you are accurately (准确地)   understanding his words.

很多食品包装袋内填充有氮气或二氧化碳以延长食品的保质期。在相同体积的食品包装袋内分别填充同温、同压的和 ， 则其中的和具有相同的（   ）

完形填空

    While I was waiting in line at a coffee shop earlier, a woman drove alongside the queue in a mobility scooter (踏板车). There was only a1 space between the line of people and the tables, which she2to drive along. She drove over my foot and didn't 3saying nothing at all.

    I got annoyed and expected she would have 4, but then I just decided to5 it and got down to selecting which pastry (点心) to go with my coffee. The lady and I ended up sitting at adjacent (邻近的) tables. She was on the end of a row so that she could park her6. After about half an hour, when she had7 her coffee, she got up and back onto her scooter. It8 start. She tried to turn the key several times9 she telephoned the place she purchased it from.

    An engineer 10 within 5 minutes. The place must have been local. I couldn't11 overhearing their conversation, and it turned out she had just12 the scooter that morning. This was her very first outing in it. She felt really13 about driving it14 , she wasn't used to its speed, nor its 15, and this combination made it quite16 to drive it through narrow gaps.

    Suddenly, I felt 17 for the lady. It really didn't18 me at all that she'd driven over my foot. I had made an assumption, 19, that a person doing that should apologize.

    Next time you're about to 20 someone, pause for a second and remind yourself that people have judged you without knowing what was going on in your mind or your life.

阅读理解

Welcome to Marksdale State Park Where fun, fitness, and education come together Don't miss our new summer classes available during May 23- Aug 5! Swimming lessons: Ages 4—adult. Cost: $ 5 per class or $ 15 for one month. Hiking: Have a state park keeper hike through our paths with you and teach you about the park's wildlife and plants. Soccer: Our youth soccer program is unusual in that it is non-competitive. Different teams are formed every day. The focus is on each player learning to work as a team, not on one team winning it all. Boating: These classes are only for 20-year-olds and above. Fishing is only allowed with a permit. Bicycling: We have special paths built for bicyclists. Signs are posted for self-guided tours of our park. Group cycling is also available with a park guide. Paths range from easy to challenging. A message from the director: Hiking paths! Sport fields! Playgrounds! Campgrounds! Fun activities! Located on McQueeney, Marksdale State Park offers something for everyone. We have a number of plants and animals, which are in danger of dying out, being protected in our park. Sign up for one of our new summer community classes, or take a camping trip with your friends or family! Glen Harwood, Park Director

某制药有限公司生产有多种型号的钙尔奇D片剂，为测定某型号片剂中碳酸钙含量，进行如下实验：取10片该片剂碾碎后放入足量的盐酸中充分反应(假设盐酸只与碳酸钙反应)后过滤，取滤液加(NH₄)₂C₂O₄使Ca²⁺生成CaC₂O₄沉淀，沉淀过滤洗涤后溶解于强酸中并稀释成1L溶液，取20.00mL，然后用0.0500mol·L^-1KMnO₄溶液滴定，反应中用去12.00mLKMnO₄溶液，发生反应的离子方程式为：2MnO₄^-+5H₂C₂O₄+6H⁺=2Mn²⁺+10CO₂↑+8H₂O

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